In the Linux kernel, the following vulnerability has been resolved: fbdev: rivafb: fix divide error in nv3_arb() A userspace program can trigger the RIVA NV3 arbitration code by calling the FBIOPUT_VSCREENINFO ioctl on /dev/fb*. When doing so, the driver recomputes FIFO arbitration parameters in nv3_arb(), using state->mclk_khz (derived from the PRAMDAC MCLK PLL) as a divisor without validating it first. In a normal setup, state->mclk_khz is provided by the real hardware and is non-zero. However, an attacker can construct a malicious or misconfigured device (e.g. a crafted/emulated PCI device) that exposes a bogus PLL configuration, causing state->mclk_khz to become zero. Once nv3_get_param() calls nv3_arb(), the division by state->mclk_khz in the gns calculation causes a divide error and crashes the kernel. Fix this by checking whether state->mclk_khz is zero and bailing out before doing the division. The following log reveals it: rivafb: setting virtual Y resolution to 2184 divide error: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 2187 Comm: syz-executor.0 Not tainted 5.18.0-rc1+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:nv3_arb drivers/video/fbdev/riva/riva_hw.c:439 [inline] RIP: 0010:nv3_get_param+0x3ab/0x13b0 drivers/video/fbdev/riva/riva_hw.c:546 Call Trace: nv3CalcArbitration.constprop.0+0x255/0x460 drivers/video/fbdev/riva/riva_hw.c:603 nv3UpdateArbitrationSettings drivers/video/fbdev/riva/riva_hw.c:637 [inline] CalcStateExt+0x447/0x1b90 drivers/video/fbdev/riva/riva_hw.c:1246 riva_load_video_mode+0x8a9/0xea0 drivers/video/fbdev/riva/fbdev.c:779 rivafb_set_par+0xc0/0x5f0 drivers/video/fbdev/riva/fbdev.c:1196 fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1033 do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1109 fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1188 __x64_sys_ioctl+0x122/0x190 fs/ioctl.c:856

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-099963 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    fbdev: rivafb: fix divide error in nv3_arb()

    A userspace program can trigger the RIVA NV3 arbitration code by calling     the FBIOPUT_VSCREENINFO ioctl on /dev/fb*. When doing so, the driver     recomputes FIFO arbitration parameters in nv3_arb(), using state->mclk_khz     (derived from the PRAMDAC MCLK PLL) as a divisor without validating it     first.

    In a normal setup, state->mclk_khz is provided by the real hardware and is     non-zero. However, an attacker can construct a malicious or misconfigured     device (e.g. a crafted/emulated PCI device) that exposes a bogus PLL     configuration, causing state->mclk_khz to become zero.  Once     nv3_get_param() calls nv3_arb(), the division by state->mclk_khz in the gns     calculation causes a divide error and crashes the kernel.

    Fix this by checking whether state->mclk_khz is zero and bailing out before     doing the division.

    The following log reveals it:

    rivafb: setting virtual Y resolution to 2184     divide error: 0000 [#1] PREEMPT SMP KASAN PTI     CPU: 0 PID: 2187 Comm: syz-executor.0 Not tainted 5.18.0-rc1+ #1     Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org     04/01/2014     RIP: 0010:nv3_arb drivers/video/fbdev/riva/riva_hw.c:439 [inline]     RIP: 0010:nv3_get_param+0x3ab/0x13b0 drivers/video/fbdev/riva/riva_hw.c:546     Call Trace:
      nv3CalcArbitration.constprop.0+0x255/0x460 drivers/video/fbdev/riva/riva_hw.c:603       nv3UpdateArbitrationSettings drivers/video/fbdev/riva/riva_hw.c:637 [inline]       CalcStateExt+0x447/0x1b90 drivers/video/fbdev/riva/riva_hw.c:1246       riva_load_video_mode+0x8a9/0xea0 drivers/video/fbdev/riva/fbdev.c:779       rivafb_set_par+0xc0/0x5f0 drivers/video/fbdev/riva/fbdev.c:1196       fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1033       do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1109       fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1188
      __x64_sys_ioctl+0x122/0x190 fs/ioctl.c:856

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

The Unity Linux 20 host has a package installed that is affected by a vulnerability as referenced in the UTSA-2026-100331 advisory.

    In the Linux kernel, the following vulnerability has been resolved:

    fbdev: rivafb: fix divide error in nv3_arb()

    A userspace program can trigger the RIVA NV3 arbitration code by calling     the FBIOPUT_VSCREENINFO ioctl on /dev/fb*. When doing so, the driver     recomputes FIFO arbitration parameters in nv3_arb(), using state->mclk_khz     (derived from the PRAMDAC MCLK PLL) as a divisor without validating it     first.

    In a normal setup, state->mclk_khz is provided by the real hardware and is     non-zero. However, an attacker can construct a malicious or misconfigured     device (e.g. a crafted/emulated PCI device) that exposes a bogus PLL     configuration, causing state->mclk_khz to become zero.  Once     nv3_get_param() calls nv3_arb(), the division by state->mclk_khz in the gns     calculation causes a divide error and crashes the kernel.

    Fix this by checking whether state->mclk_khz is zero and bailing out before     doing the division.

    The following log reveals it:

    rivafb: setting virtual Y resolution to 2184     divide error: 0000 [#1] PREEMPT SMP KASAN PTI     CPU: 0 PID: 2187 Comm: syz-executor.0 Not tainted 5.18.0-rc1+ #1     Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org     04/01/2014     RIP: 0010:nv3_arb drivers/video/fbdev/riva/riva_hw.c:439 [inline]     RIP: 0010:nv3_get_param+0x3ab/0x13b0 drivers/video/fbdev/riva/riva_hw.c:546     Call Trace:
      nv3CalcArbitration.constprop.0+0x255/0x460 drivers/video/fbdev/riva/riva_hw.c:603       nv3UpdateArbitrationSettings drivers/video/fbdev/riva/riva_hw.c:637 [inline]       CalcStateExt+0x447/0x1b90 drivers/video/fbdev/riva/riva_hw.c:1246       riva_load_video_mode+0x8a9/0xea0 drivers/video/fbdev/riva/fbdev.c:779       rivafb_set_par+0xc0/0x5f0 drivers/video/fbdev/riva/fbdev.c:1196       fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1033       do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1109       fb_ioctl+0xdd/0x130 drivers/video/fbdev/core/fbmem.c:1188
      __x64_sys_ioctl+0x122/0x190 fs/ioctl.c:856

Tenable has extracted the preceding description block directly from the Unity Linux security advisory.

Note that Nessus has not tested for this issue but has instead relied only on the application's self-reported version number.

An update of the linux package has been released.

The remote Oracle Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-50372 advisory.

    - net/sched: fix pedit partial COW leading to page cache corruption (Rajat Gupta)   {CVE-2026-46331}
    - eventpoll: fix ep_remove struct eventpoll / struct file UAF (Christian Brauner)  [Orabug: 39668743]     {CVE-2026-46242}
    - net: skbuff: fix missing zerocopy reference in pskb_carve helpers (Minh Nguyen)  [Orabug: 39656679]     {CVE-2026-52943}
    - arm64: errata: Mitigate TLBI errata on various Arm CPUs (Mark Rutland)  [Orabug: 39548792]     {CVE-2025-10263}
    - openvswitch: vport: fix self-deadlock on release of tunnel ports (Ilya Maximets) {CVE-2026-46165}
    - iommu/amd: serialize sequence allocation under concurrent TLB invalidations (Ankit Soni)     {CVE-2026-43220}
    - usb: ulpi: fix memory leak on ulpi_register() error paths (Felix Gu) {CVE-2026-46109}
    - smb: client: reject userspace cifs.spnego descriptions (Asim Viladi Oglu Manizada)  [Orabug: 39463671]     {CVE-2026-46243}
    - net: skbuff: propagate shared-frag marker through frag-transfer helpers (Hyunwoo Kim) [Orabug:
    39368826,39441323] {CVE-2026-43503,CVE-2026-46300}
    - net: skbuff: preserve shared-frag marker during coalescing (William Bowling) [Orabug: 39368826]     {CVE-2026-46300}
    - netfilter: reject zero shift in nft_bitwise (Kai Ma) [Orabug: 39452464] {CVE-2026-46101}
    - net: ipv6: fix NOREF dst use in seg6 and rpl lwtunnels (Andrea Mayer) [Orabug: 39452457]     {CVE-2026-46099}
    - ALSA: caiaq: fix usb_dev refcount leak on probe failure (Deepanshu Kartikey) [Orabug: 39452739]     {CVE-2026-46048}
    - ipv6: rpl: reserve mac_len headroom when recompressed SRH grows (Greg Kroah-Hartman) [Orabug: 39426003]     {CVE-2026-43501}
    - ALSA: caiaq: Fix potentially leftover ep1_in_urb at error path (Takashi Iwai) [Orabug: 39452746]     {CVE-2026-45992}
    - net: bonding: fix use-after-free in bond_xmit_broadcast() (Xiang Mei) [Orabug: 39205989]     {CVE-2026-31419}
    - crypto: authencesn - reject short ahash digests during instance creation (Yucheng Lu) [Orabug: 39452231]     {CVE-2026-46033}
    - spi: fix resource leaks on device setup failure (Johan Hovold) [Orabug: 39452400] {CVE-2026-46083}
    - net: qrtr: ns: Limit the total number of nodes (Manivannan Sadhasivam) [Orabug: 39452123]     {CVE-2026-46003}
    - net: bridge: use a stable FDB dst snapshot in RCU readers (Zhengchuan Liang) [Orabug: 39452411]     {CVE-2026-46086}
    - net: qrtr: ns: Limit the maximum number of lookups (Manivannan Sadhasivam) [Orabug: 39452207]     {CVE-2026-46026}
    - net: qrtr: ns: Limit the maximum server registration per node (Manivannan Sadhasivam) [Orabug: 39410851]     {CVE-2026-43491}
    - RDMA/mana_ib: Disable RX steering on RSS QP destroy (Long Li) [Orabug: 39452406] {CVE-2026-46084}
    - media: rc: igorplugusb: heed coherency rules (Oliver Neukum) [Orabug: 39452432] {CVE-2026-46091}
    - wifi: mwifiex: fix use-after-free in mwifiex_adapter_cleanup() (Daniel Hodges) [Orabug: 39452343]     {CVE-2026-46069}
    - thermal: core: Fix thermal zone governor cleanup issues (Rafael J. Wysocki) [Orabug: 39452186]     {CVE-2026-46021}
    - smb: client: validate the whole DACL before rewriting it in cifsacl (Michael Bommarito) [Orabug:
    39300611] {CVE-2026-31709}
    - scsi: sd: fix missing put_disk() when device_add(&disk_dev) fails (Yang Xiuwei) [Orabug: 39452100]     {CVE-2026-45997}
    - rtmutex: Use waiter::task instead of current in remove_waiter() (Keenan Dong) [Orabug: 39425998]     {CVE-2026-43499}
    - ceph: only d_add() negative dentries when they are unhashed (Max Kellermann) [Orabug: 39452291]     {CVE-2026-46052}
    - dm mirror: fix integer overflow in create_dirty_log() (Junrui Luo) [Orabug: 39452196] {CVE-2026-46023}
    - Bluetooth: hci_event: fix potential UAF in SSP passkey handlers (Shuvam Pandey) [Orabug: 39452304]     {CVE-2026-46056}
    - tcp: call sk_data_ready() after listener migration (Zhenzhong Wu) [Orabug: 39452159] {CVE-2026-46015}
    - inotify: fix watch count leak when fsnotify_add_inode_mark_locked() fails (Chia-Ming Chang) [Orabug:
    39452250] {CVE-2026-46040}
    - md/raid5: validate payload size before accessing journal metadata (Junrui Luo) [Orabug: 39452349]     {CVE-2026-46070}
    - md/raid5: fix soft lockup in retry_aligned_read() (Chia-Ming Chang) [Orabug: 39452287] {CVE-2026-46051}
    - ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all() (Sohei Koyama) [Orabug: 39452269]     {CVE-2026-46046}
    - ext4: fix bounds check in check_xattrs() to prevent out-of-bounds access (Deepanshu Kartikey) [Orabug:
    39452442] {CVE-2026-46094}
    - io_uring/poll: fix multishot recv missing EOF on wakeup race (Jens Axboe) {CVE-2026-23473}
    - KVM: nSVM: Raise #UD if unhandled VMMCALL isn't intercepted by L1 (Kevin Cheng) [Orabug: 39452372]     {CVE-2026-46076}
    - KVM: SVM: Inject #UD for INVLPGA if EFER.SVME=0 (Kevin Cheng) [Orabug: 39452394] {CVE-2026-46082}
    - KVM: nSVM: Sync interrupt shadow to cached vmcb12 after VMRUN of L2 (Yosry Ahmed) [Orabug: 39452061]     {CVE-2026-45987}
    - xfs: fix a resource leak in xfs_alloc_buftarg() (Haoxiang Li) [Orabug: 39452131] {CVE-2026-46005}
    - libceph: Prevent potential null-ptr-deref in ceph_handle_auth_reply() (Raphael Zimmer) [Orabug:
    39452201] {CVE-2026-46024}
    - ipv4: icmp: validate reply type before using icmp_pointers (Ruide Cao) [Orabug: 39452243]     {CVE-2026-46037}
    - RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv (Hkbinbin) [Orabug: 39452259]     {CVE-2026-46043}
    - net: qrtr: ns: Free the node during ctrl_cmd_bye() (Manivannan Sadhasivam) [Orabug: 39452246]     {CVE-2026-46038}
    - rxrpc: Fix rxkad crypto unalignment handling (David Howells) [Orabug: 39452728] {CVE-2026-46085}
    - ALSA: caiaq: Handle probe errors properly (Takashi Iwai) [Orabug: 39452126] {CVE-2026-46004}
    - rbd: fix null-ptr-deref when device_add_disk() fails (Dawei Feng) [Orabug: 39452385] {CVE-2026-46079}
    - md/raid10: fix deadlock with check operation and nowait requests (Josh Hunt) [Orabug: 39452284]     {CVE-2026-46050}
    - jbd2: fix deadlock in jbd2_journal_cancel_revoke() (Zhang Yi) [Orabug: 39452318] {CVE-2026-46061}
    - erofs: fix the out-of-bounds nameoff handling for trailing dirents (Gao Xiang) [Orabug: 39452380]     {CVE-2026-46078}
    - ALSA: ctxfi: Add fallback to default RSR for S/PDIF (Harin Lee) [Orabug: 39452280] {CVE-2026-46049}
    - ext2: reject inodes with zero i_nlink and valid mode in ext2_iget() (Vasiliy Kovalev) [Orabug: 39452119]     {CVE-2026-46002}
    - net: qrtr: ns: Fix use-after-free in driver remove() (Manivannan Sadhasivam) [Orabug: 39452274]     {CVE-2026-46047}
    - net: strparser: fix skb_head leak in strp_abort_strp() (Luxiao Xu) [Orabug: 39452468] {CVE-2026-46102}
    - ALSA: control: Validate buf_len before strnlen() in snd_ctl_elem_init_enum_names() (Ziqing Chen)     [Orabug: 39452416] {CVE-2026-46088}
    - crypto: pcrypt - Fix handling of MAY_BACKLOG requests (Herbert Xu) [Orabug: 39410863] {CVE-2026-43493}
    - wifi: rtw88: check for PCI upstream bridge existence (Fedor Pchelkin) [Orabug: 39452437]     {CVE-2026-46092}
    - zram: do not forget to endio for partial discard requests (Sergey Senozhatsky) [Orabug: 39452420]     {CVE-2026-46089}
    - ocfs2: split transactions in dio completion to avoid credit exhaustion (Heming Zhao) [Orabug: 39452388]     {CVE-2026-46080}
    - drm/amdgpu: Limit BO list entry count to prevent resource exhaustion (Jesse Zhang) [Orabug: 39167551]     {CVE-2026-23468}
    - padata: Fix pd UAF once and for all (Herbert Xu) [Orabug: 38335055] {CVE-2025-38584}
    - drm/nouveau: fix u32 overflow in pushbuf reloc bounds check (Greg Kroah-Hartman) [Orabug: 39452133]     {CVE-2026-46006}
    - ALSA: usb-audio: stop parsing UAC2 rates at MAX_NR_RATES (Cassio Gabriel) [Orabug: 39452170]     {CVE-2026-46018}
    - Buffer overflow in drivers/xen/sys-hypervisor.c (Juergen Gross) [Orabug: 39305898] {CVE-2026-31786}
    - xen/privcmd: fix double free via VMA splitting (Juergen Gross) [Orabug: 39305908] {CVE-2026-31787}
    - rxrpc: Fix missing validation of ticket length in non-XDR key preparsing (Anderson Nascimento) [Orabug:
    39300563] {CVE-2026-31696}
    - crypto: ccp: Don't attempt to copy ID to userspace if PSP command failed (Sean Christopherson)     {CVE-2026-31697}
    - crypto: ccp: Don't attempt to copy PDH cert to userspace if PSP command failed (Sean Christopherson)     {CVE-2026-31698}
    - crypto: ccp: Don't attempt to copy CSR to userspace if PSP command failed (Sean Christopherson)     {CVE-2026-31699}
    - net/packet: fix TOCTOU race on mmap'd vnet_hdr in tpacket_snd() (Bingquan Chen) {CVE-2026-31700}
    - ALSA: caiaq: take a reference on the USB device in create_card() (Berk Cem Goksel) [Orabug: 39300586]     {CVE-2026-31701}
    - smb: client: fix OOB read in smb2_ioctl_query_info QUERY_INFO path (Michael Bommarito) [Orabug:
    39300607] {CVE-2026-31708}
    - smb: client: require a full NFS mode SID before reading mode bits (Michael Bommarito) [Orabug: 39343707]     {CVE-2026-43350}
    - fuse: reject oversized dirents in page cache (Samuel Page) [Orabug: 39300556] {CVE-2026-31694}
    - mm/pagewalk: fix race between concurrent split and refault (Max Boone) [Orabug: 39250782]     {CVE-2026-31456}
    - wifi: mac80211: always free skb on ieee80211_tx_prepare_skb() failure (Felix Fietkau) [Orabug: 39167472]     {CVE-2026-23444}
    - mm/userfaultfd: fix hugetlb fault mutex hash calculation (Jianhui Zhou) [Orabug: 39273453]     {CVE-2026-31575}
    - ipv6: add NULL checks for idev in SRv6 paths (Heminhong) [Orabug: 39167467] {CVE-2026-23442}
    - ocfs2: fix out-of-bounds write in ocfs2_write_end_inline (Joseph Qi) [Orabug: 39331090] {CVE-2026-43075}
    - ocfs2: validate inline data i_size during inode read (Deepanshu Kartikey) [Orabug: 39331097]     {CVE-2026-43076}
    - media: as102: fix to not free memory after the device is registered in as102_usb_probe() (Jeongjun Park)     [Orabug: 39273467] {CVE-2026-31578}
    - bcache: fix cached_dev.sb_bio use-after-free and crash (Mingzhe Zou) [Orabug: 39273481] {CVE-2026-31580}
    - ALSA: 6fire: fix use-after-free on disconnect (Berk Cem Goksel) [Orabug: 39273486] {CVE-2026-31581}
    - media: em28xx: fix use-after-free in em28xx_v4l2_open() (Abhishek Kumar) [Orabug: 39273493]     {CVE-2026-31583}
    - mm: blk-cgroup: fix use-after-free in cgwb_release_workfn() (Breno Leitao) [Orabug: 39273507]     {CVE-2026-31586}
    - KVM: x86: Use scratch field in MMIO fragment to hold small write values (Sean Christopherson) [Orabug:
    39273521] {CVE-2026-31588}
    - x86-64: rename misleadingly named '__copy_user_nocache()' function (Linus Torvalds) [Orabug: 39323162]     {CVE-2026-43073}
    - kernel: be more careful about dup_mmap() failures and uprobe registering (Liam R. Howlett)     {CVE-2025-21709}
    - gpiolib: fix race condition for gdev->srcu (Pawel Narewski) [Orabug: 38887677] {CVE-2026-22986}
    - KVM: SEV: Drop WARN on large size for KVM_MEMORY_ENCRYPT_REG_REGION (Sean Christopherson) [Orabug:
    39273529] {CVE-2026-31590}
    - KVM: SEV: Reject attempts to sync VMSA of an already-launched/encrypted vCPU (Sean Christopherson)     [Orabug: 39273553] {CVE-2026-31593}
    - ocfs2: handle invalid dinode in ocfs2_group_extend (Zhengyuan Huang) [Orabug: 39273569] {CVE-2026-31596}
    - ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY (Tejas Bharambe) [Orabug: 39273578]     {CVE-2026-31597}
    - ocfs2: fix possible deadlock between unlink and dio_end_io_write (Joseph Qi) [Orabug: 39273586]     {CVE-2026-31598}
    - dcache: Limit the minimal number of bucket to two (Zhihao Cheng) [Orabug: 39323133] {CVE-2026-43071}
    - ALSA: ctxfi: Limit PTP to a single page (Harin Lee) [Orabug: 39273608] {CVE-2026-31602}
    - wifi: rtw88: fix device leak on probe failure (Johan Hovold) [Orabug: 39273620] {CVE-2026-31604}

Tenable has extracted the preceding description block directly from the Oracle Linux security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8497-1 advisory.

    It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer     operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in     the RxRPC networking subsystem when processing paged fragments. A local attacker could use this to     escalate privileges, or possibly escape a container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998,     CVE-2026-46000)

    It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when     handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to     escalate privileges, or possibly escape a container. (CVE-2026-43503, CVE-2026-46300)

    Qualys discovered that a race condition existed in the ptrace subsystem of the Linux kernel when     privileged processes are exiting. An unprivileged local attacker could use this issue to expose sensitive     information. (CVE-2026-46333)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a memory leak when handling     AppArmor notifications. A local attacker could use this to cause resource exhaustion. (CVE-2026-47326)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a NULL pointer dereference     when handling AppArmor notifications. A local attacker could use this to cause a kernel oops.
    (CVE-2026-47327)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an invalid free when     handling AppArmor notifications. A local attacker could use this to corrupt kernel memory.
    (CVE-2026-47328)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained insufficient validation of     AppArmor notification responses. A local attacker could use this to allow crafted responses to be     processed. (CVE-2026-47329)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 used an uninitialized variable when     handling AppArmor notifications. A local attacker could use this to cause incorrect caching of data.
    (CVE-2026-47330)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a use- after-free (UAF) bug. A local     attacker could use this to cause memory corruption and, theoretically, arbitrary code execution.
    (CVE-2026-47331)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an out-of-bounds (OOB) read     when handling AppArmor notifications. A local attacker could use this to cause information disclosure of     kernel memory. (CVE-2026-47332)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained a out-of-bounds (OOB) read     when handling AppArmor notifications. A local attacker could use this to cause kernel memory corruption     and, theoretically, influence processing of AppArmor policies. (CVE-2026-47333)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained incorrect holding of locks     when handling AppArmor notifications. A local attacker could use this to cause a kernel panic or deadlock.
    (CVE-2026-47334)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a NULL pointer dereference when handling     AppArmor notifications. A local attacker could use this to cause a kernel panic. (CVE-2026-47335)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8 used an uninitialized variable when handling     AppArmor AF_INET/AF_INET6 socket mediation. A local attacker could use this to influence processing of     fine- grained network socket mediation. (CVE-2026-47336)

    Tristan Madani and Trevor Lawrence have each independently discovered that Ubuntu Linux kernel 6.8, 6.17     and 7.0 contained a NULL pointer dereference when handling AppArmor network socket mediation. A local     attacker could use this to cause a kernel oops. (CVE-2026-47337)

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - ARM64 architecture;

    - MIPS architecture;

    - PowerPC architecture;

    - x86 architecture;

    - Block layer subsystem;

    - Cryptographic API;

    - ACPI drivers;

    - ATM drivers;

    - RNBD block device driver;

    - Ublk userspace block driver;

    - Bus devices;

    - Character device driver;

    - TPM device driver;

    - Clock framework and drivers;

    - Clocksource drivers;

    - CPU idle management framework;

    - Hardware crypto device drivers;

    - DMA engine subsystem;

    - EFI core;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - Hardware monitoring drivers;

    - IIO subsystem;

    - InfiniBand drivers;

    - IOMMU subsystem;

    - Multiple devices driver;

    - Media drivers;

    - Multifunction device drivers;

    - Broadcom VK accelerator driver;

    - MOST (Media Oriented Systems Transport) drivers;

    - MTD block device drivers;

    - Ethernet bonding driver;

    - Network drivers;

    - Mellanox network drivers;

    - STMicroelectronics network drivers;

    - NTB driver;

    - NVME drivers;

    - PCI subsystem;

    - Performance monitor drivers;

    - Pin controllers subsystem;

    - x86 platform drivers;

    - Power supply drivers;

    - RapidIO drivers;

    - RAS (Reliability, Availability, Serviceability) subsystem;

    - Remote Processor subsystem;

    - RPMSG subsystem;

    - S/390 drivers;

    - SCSI subsystem;

    - MediaTek SoC drivers;

    - Texas Instruments SoC drivers;

    - SPI subsystem;

    - Greybus lights staging drivers;

    - Realtek RTL8723BS SDIO drivers;

    - UFS subsystem;

    - ChipIdea USB driver;

    - DesignWare USB3 driver;

    - USB over IP driver;

    - vDPA drivers;

    - Virtio Host (VHOST) subsystem;

    - Framebuffer layer;

    - BTRFS file system;

    - File systems infrastructure;

    - Ceph distributed file system;

    - Ext4 file system;

    - F2FS file system;

    - FAT file system;

    - GFS2 file system;

    - HFS+ file system;

    - JFS file system;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - NTFS3 file system;

    - OCFS2 file system;

    - Proc file system;

    - Pstore file system;

    - Diskquota system;

    - SMB network file system;

    - XFS file system;

    - Audit subsystem;

    - Memory Management;

    - IPv6 networking;

    - Netfilter;

    - Tracing infrastructure;

    - Kernel kexec() syscall;

    - RCU subsystem;

    - Scheduler infrastructure;

    - Scatterlist API;

    - 9P file system network protocol;

    - Asynchronous Transfer Mode (ATM) subsystem;

    - B.A.T.M.A.N. meshing protocol;

    - Bluetooth subsystem;

    - Ethernet bridge;

    - Ceph Core library;

    - Networking core;

    - IPv4 networking;

    - KCM (Kernel Connection Multiplexor) sockets driver;

    - Multipath TCP;

    - NFC subsystem;

    - RDS protocol;

    - RxRPC session sockets;

    - Network traffic control;

    - SMC sockets;

    - Sun RPC protocol;

    - X.25 network layer;

    - XFRM subsystem;

    - AppArmor security module;

    - Simplified Mandatory Access Control Kernel framework;

    - SOF drivers;

    - USB sound devices; (CVE-2025-40005, CVE-2025-71229, CVE-2025-71231, CVE-2025-71232, CVE-2025-71233,     CVE-2025-71235, CVE-2025-71236, CVE-2025-71237, CVE-2025-71238, CVE-2025-71239, CVE-2025-71265,     CVE-2025-71266, CVE-2025-71267, CVE-2025-71272, CVE-2025-71273, CVE-2025-71274, CVE-2025-71286,     CVE-2025-71291, CVE-2025-71292, CVE-2025-71294, CVE-2025-71295, CVE-2025-71297, CVE-2025-71304,     CVE-2025-71305, CVE-2026-23100, CVE-2026-23169, CVE-2026-23220, CVE-2026-23221, CVE-2026-23222,     CVE-2026-23228, CVE-2026-23229, CVE-2026-23230, CVE-2026-23233, CVE-2026-23234, CVE-2026-23235,     CVE-2026-23236, CVE-2026-23237, CVE-2026-23238, CVE-2026-23241, CVE-2026-23242, CVE-2026-23243,     CVE-2026-23249, CVE-2026-23266, CVE-2026-23267, CVE-2026-23272, CVE-2026-23278, CVE-2026-23392,     CVE-2026-23428, CVE-2026-23450, CVE-2026-23455, CVE-2026-31402, CVE-2026-31411, CVE-2026-31418,     CVE-2026-31436, CVE-2026-31448, CVE-2026-31478, CVE-2026-31607, CVE-2026-31637, CVE-2026-31649,     CVE-2026-31657, CVE-2026-31659, CVE-2026-31668, CVE-2026-31669, CVE-2026-31676, CVE-2026-31682,     CVE-2026-31685, CVE-2026-31687, CVE-2026-31693, CVE-2026-43011, CVE-2026-43037, CVE-2026-43038,     CVE-2026-43071, CVE-2026-43114, CVE-2026-43117, CVE-2026-43123, CVE-2026-43124, CVE-2026-43128,     CVE-2026-43130, CVE-2026-43132, CVE-2026-43133, CVE-2026-43134, CVE-2026-43135, CVE-2026-43136,     CVE-2026-43137, CVE-2026-43139, CVE-2026-43140, CVE-2026-43141, CVE-2026-43143, CVE-2026-43145,     CVE-2026-43147, CVE-2026-43148, CVE-2026-43149, CVE-2026-43150, CVE-2026-43152, CVE-2026-43153,     CVE-2026-43156, CVE-2026-43157, CVE-2026-43158, CVE-2026-43159, CVE-2026-43163, CVE-2026-43167,     CVE-2026-43168, CVE-2026-43169, CVE-2026-43170, CVE-2026-43171, CVE-2026-43173, CVE-2026-43175,     CVE-2026-43180, CVE-2026-43182, CVE-2026-43183, CVE-2026-43184, CVE-2026-43186, CVE-2026-43187,     CVE-2026-43189, CVE-2026-43190, CVE-2026-43194, CVE-2026-43196, CVE-2026-43199, CVE-2026-43200,     CVE-2026-43201, CVE-2026-43202, CVE-2026-43203, CVE-2026-43205, CVE-2026-43206, CVE-2026-43207,     CVE-2026-43209, CVE-2026-43211, CVE-2026-43212, CVE-2026-43214, CVE-2026-43215, CVE-2026-43218,     CVE-2026-43221, CVE-2026-43222, CVE-2026-43223, CVE-2026-43225, CVE-2026-43226, CVE-2026-43227,     CVE-2026-43230, CVE-2026-43231, CVE-2026-43232, CVE-2026-43233, CVE-2026-43236, CVE-2026-43238,     CVE-2026-43239, CVE-2026-43241, CVE-2026-43242, CVE-2026-43244, CVE-2026-43246, CVE-2026-43248,     CVE-2026-43249, CVE-2026-43250, CVE-2026-43251, CVE-2026-43253, CVE-2026-43255, CVE-2026-43256,     CVE-2026-43257, CVE-2026-43258, CVE-2026-43261, CVE-2026-43262, CVE-2026-43264, CVE-2026-43266,     CVE-2026-43268, CVE-2026-43269, CVE-2026-43270, CVE-2026-43271, CVE-2026-43273, CVE-2026-43275,     CVE-2026-43277, CVE-2026-43278, CVE-2026-43279, CVE-2026-43283, CVE-2026-43287, CVE-2026-43288,     CVE-2026-43289, CVE-2026-43291, CVE-2026-43295, CVE-2026-43296, CVE-2026-43297, CVE-2026-43300,     CVE-2026-43302, CVE-2026-43304, CVE-2026-43312, CVE-2026-43313, CVE-2026-43314, CVE-2026-43315,     CVE-2026-43316, CVE-2026-43317, CVE-2026-43318, CVE-2026-43319, CVE-2026-43320, CVE-2026-43341,     CVE-2026-43378, CVE-2026-43383, CVE-2026-43384, CVE-2026-43406, CVE-2026-43407, CVE-2026-43414,     CVE-2026-43493, CVE-2026-43494, CVE-2026-43501, CVE-2026-45847, CVE-2026-45848, CVE-2026-45849,     CVE-2026-45851, CVE-2026-45852, CVE-2026-45856, CVE-2026-45857, CVE-2026-45859, CVE-2026-45860,     CVE-2026-45861, CVE-2026-45862, CVE-2026-45864, CVE-2026-45865, CVE-2026-45866, CVE-2026-45867,     CVE-2026-45868, CVE-2026-45869, CVE-2026-45870, CVE-2026-45871, CVE-2026-45872, CVE-2026-45873,     CVE-2026-45875, CVE-2026-45877, CVE-2026-45878, CVE-2026-45879, CVE-2026-45880, CVE-2026-45881,     CVE-2026-45882, CVE-2026-45883, CVE-2026-45884, CVE-2026-45885, CVE-2026-45886, CVE-2026-45890,     CVE-2026-45891, CVE-2026-45893, CVE-2026-45895, CVE-2026-45902, CVE-2026-45904, CVE-2026-45905,     CVE-2026-45910, CVE-2026-45912, CVE-2026-45913, CVE-2026-45914, CVE-2026-45915, CVE-2026-45916,     CVE-2026-45917, CVE-2026-45919, CVE-2026-45921, CVE-2026-45923, CVE-2026-45928, CVE-2026-45935,     CVE-2026-45936, CVE-2026-45938, CVE-2026-45941, CVE-2026-45946, CVE-2026-45947, CVE-2026-45948,     CVE-2026-45954, CVE-2026-45957, CVE-2026-45960, CVE-2026-45962, CVE-2026-45964, CVE-2026-45965,     CVE-2026-45968, CVE-2026-45969, CVE-2026-45970, CVE-2026-45972, CVE-2026-45973, CVE-2026-45974,     CVE-2026-45976, CVE-2026-45978, CVE-2026-45981, CVE-2026-45982, CVE-2026-45983, CVE-2026-45984,     CVE-2026-45988, CVE-2026-46043, CVE-2026-46115, CVE-2026-46119, CVE-2026-46135, CVE-2026-46185,     CVE-2026-46195, CVE-2026-46243, CVE-2026-46244, CVE-2026-46246, CVE-2026-46247, CVE-2026-46249,     CVE-2026-46250, CVE-2026-46251, CVE-2026-46253, CVE-2026-46254, CVE-2026-46255, CVE-2026-46259,     CVE-2026-46260, CVE-2026-46261, CVE-2026-46265, CVE-2026-46266, CVE-2026-46267, CVE-2026-46270,     CVE-2026-46289, CVE-2026-46323, CVE-2026-46328)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 22.04 LTS / 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8492-1 advisory.

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - ARM64 architecture;

    - MIPS architecture;

    - PowerPC architecture;

    - x86 architecture;

    - Block layer subsystem;

    - Cryptographic API;

    - ACPI drivers;

    - ATM drivers;

    - RNBD block device driver;

    - Ublk userspace block driver;

    - Bus devices;

    - Character device driver;

    - TPM device driver;

    - Clock framework and drivers;

    - Clocksource drivers;

    - CPU idle management framework;

    - Hardware crypto device drivers;

    - DMA engine subsystem;

    - EFI core;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - Hardware monitoring drivers;

    - IIO subsystem;

    - InfiniBand drivers;

    - IOMMU subsystem;

    - Multiple devices driver;

    - Media drivers;

    - Multifunction device drivers;

    - Broadcom VK accelerator driver;

    - MOST (Media Oriented Systems Transport) drivers;

    - MTD block device drivers;

    - Ethernet bonding driver;

    - Network drivers;

    - Mellanox network drivers;

    - STMicroelectronics network drivers;

    - NTB driver;

    - NVME drivers;

    - PCI subsystem;

    - Performance monitor drivers;

    - Pin controllers subsystem;

    - x86 platform drivers;

    - Power supply drivers;

    - RapidIO drivers;

    - RAS (Reliability, Availability, Serviceability) subsystem;

    - Remote Processor subsystem;

    - RPMSG subsystem;

    - S/390 drivers;

    - SCSI subsystem;

    - MediaTek SoC drivers;

    - Texas Instruments SoC drivers;

    - SPI subsystem;

    - Greybus lights staging drivers;

    - Realtek RTL8723BS SDIO drivers;

    - UFS subsystem;

    - ChipIdea USB driver;

    - DesignWare USB3 driver;

    - USB over IP driver;

    - vDPA drivers;

    - Virtio Host (VHOST) subsystem;

    - Framebuffer layer;

    - BTRFS file system;

    - File systems infrastructure;

    - Ceph distributed file system;

    - Ext4 file system;

    - F2FS file system;

    - FAT file system;

    - GFS2 file system;

    - HFS+ file system;

    - JFS file system;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - NTFS3 file system;

    - OCFS2 file system;

    - Proc file system;

    - Pstore file system;

    - Diskquota system;

    - SMB network file system;

    - XFS file system;

    - Audit subsystem;

    - Memory Management;

    - IPv6 networking;

    - Netfilter;

    - Tracing infrastructure;

    - Kernel kexec() syscall;

    - RCU subsystem;

    - Scheduler infrastructure;

    - Scatterlist API;

    - 9P file system network protocol;

    - Asynchronous Transfer Mode (ATM) subsystem;

    - B.A.T.M.A.N. meshing protocol;

    - Bluetooth subsystem;

    - Ethernet bridge;

    - Ceph Core library;

    - Networking core;

    - IPv4 networking;

    - KCM (Kernel Connection Multiplexor) sockets driver;

    - Multipath TCP;

    - NFC subsystem;

    - RDS protocol;

    - RxRPC session sockets;

    - Network traffic control;

    - SMC sockets;

    - Sun RPC protocol;

    - X.25 network layer;

    - XFRM subsystem;

    - AppArmor security module;

    - Simplified Mandatory Access Control Kernel framework;

    - SOF drivers;

    - USB sound devices; (CVE-2025-40005, CVE-2025-71229, CVE-2025-71231, CVE-2025-71232, CVE-2025-71233,     CVE-2025-71235, CVE-2025-71236, CVE-2025-71237, CVE-2025-71238, CVE-2025-71239, CVE-2025-71265,     CVE-2025-71266, CVE-2025-71267, CVE-2025-71272, CVE-2025-71273, CVE-2025-71274, CVE-2025-71286,     CVE-2025-71291, CVE-2025-71292, CVE-2025-71294, CVE-2025-71295, CVE-2025-71297, CVE-2025-71304,     CVE-2025-71305, CVE-2026-23100, CVE-2026-23169, CVE-2026-23220, CVE-2026-23221, CVE-2026-23222,     CVE-2026-23228, CVE-2026-23229, CVE-2026-23230, CVE-2026-23233, CVE-2026-23234, CVE-2026-23235,     CVE-2026-23236, CVE-2026-23237, CVE-2026-23238, CVE-2026-23241, CVE-2026-23242, CVE-2026-23243,     CVE-2026-23249, CVE-2026-23266, CVE-2026-23267, CVE-2026-23272, CVE-2026-23278, CVE-2026-23392,     CVE-2026-23428, CVE-2026-23450, CVE-2026-23455, CVE-2026-31402, CVE-2026-31411, CVE-2026-31418,     CVE-2026-31436, CVE-2026-31448, CVE-2026-31478, CVE-2026-31607, CVE-2026-31637, CVE-2026-31649,     CVE-2026-31657, CVE-2026-31659, CVE-2026-31668, CVE-2026-31669, CVE-2026-31682, CVE-2026-31685,     CVE-2026-31687, CVE-2026-31693, CVE-2026-43011, CVE-2026-43037, CVE-2026-43038, CVE-2026-43071,     CVE-2026-43114, CVE-2026-43117, CVE-2026-43123, CVE-2026-43124, CVE-2026-43128, CVE-2026-43130,     CVE-2026-43132, CVE-2026-43133, CVE-2026-43134, CVE-2026-43135, CVE-2026-43136, CVE-2026-43137,     CVE-2026-43139, CVE-2026-43140, CVE-2026-43141, CVE-2026-43143, CVE-2026-43145, CVE-2026-43147,     CVE-2026-43148, CVE-2026-43149, CVE-2026-43150, CVE-2026-43152, CVE-2026-43153, CVE-2026-43156,     CVE-2026-43157, CVE-2026-43158, CVE-2026-43159, CVE-2026-43163, CVE-2026-43167, CVE-2026-43168,     CVE-2026-43169, CVE-2026-43170, CVE-2026-43171, CVE-2026-43173, CVE-2026-43175, CVE-2026-43180,     CVE-2026-43182, CVE-2026-43183, CVE-2026-43184, CVE-2026-43186, CVE-2026-43187, CVE-2026-43189,     CVE-2026-43190, CVE-2026-43194, CVE-2026-43196, CVE-2026-43199, CVE-2026-43200, CVE-2026-43201,     CVE-2026-43202, CVE-2026-43203, CVE-2026-43205, CVE-2026-43206, CVE-2026-43207, CVE-2026-43209,     CVE-2026-43211, CVE-2026-43212, CVE-2026-43214, CVE-2026-43215, CVE-2026-43218, CVE-2026-43221,     CVE-2026-43222, CVE-2026-43223, CVE-2026-43225, CVE-2026-43226, CVE-2026-43227, CVE-2026-43230,     CVE-2026-43231, CVE-2026-43232, CVE-2026-43233, CVE-2026-43236, CVE-2026-43238, CVE-2026-43239,     CVE-2026-43241, CVE-2026-43242, CVE-2026-43244, CVE-2026-43246, CVE-2026-43248, CVE-2026-43249,     CVE-2026-43250, CVE-2026-43251, CVE-2026-43253, CVE-2026-43255, CVE-2026-43256, CVE-2026-43257,     CVE-2026-43258, CVE-2026-43261, CVE-2026-43262, CVE-2026-43264, CVE-2026-43266, CVE-2026-43268,     CVE-2026-43269, CVE-2026-43270, CVE-2026-43271, CVE-2026-43273, CVE-2026-43275, CVE-2026-43277,     CVE-2026-43278, CVE-2026-43279, CVE-2026-43283, CVE-2026-43287, CVE-2026-43288, CVE-2026-43289,     CVE-2026-43291, CVE-2026-43295, CVE-2026-43296, CVE-2026-43297, CVE-2026-43300, CVE-2026-43302,     CVE-2026-43304, CVE-2026-43312, CVE-2026-43313, CVE-2026-43314, CVE-2026-43315, CVE-2026-43316,     CVE-2026-43317, CVE-2026-43318, CVE-2026-43319, CVE-2026-43320, CVE-2026-43341, CVE-2026-43378,     CVE-2026-43383, CVE-2026-43384, CVE-2026-43406, CVE-2026-43407, CVE-2026-43414, CVE-2026-43493,     CVE-2026-43501, CVE-2026-45847, CVE-2026-45848, CVE-2026-45849, CVE-2026-45851, CVE-2026-45852,     CVE-2026-45856, CVE-2026-45857, CVE-2026-45859, CVE-2026-45860, CVE-2026-45861, CVE-2026-45862,     CVE-2026-45864, CVE-2026-45865, CVE-2026-45866, CVE-2026-45867, CVE-2026-45868, CVE-2026-45869,     CVE-2026-45870, CVE-2026-45871, CVE-2026-45872, CVE-2026-45873, CVE-2026-45875, CVE-2026-45877,     CVE-2026-45878, CVE-2026-45879, CVE-2026-45880, CVE-2026-45881, CVE-2026-45882, CVE-2026-45883,     CVE-2026-45884, CVE-2026-45885, CVE-2026-45886, CVE-2026-45890, CVE-2026-45891, CVE-2026-45893,     CVE-2026-45895, CVE-2026-45902, CVE-2026-45904, CVE-2026-45905, CVE-2026-45910, CVE-2026-45912,     CVE-2026-45913, CVE-2026-45914, CVE-2026-45915, CVE-2026-45916, CVE-2026-45917, CVE-2026-45919,     CVE-2026-45921, CVE-2026-45923, CVE-2026-45928, CVE-2026-45935, CVE-2026-45936, CVE-2026-45938,     CVE-2026-45941, CVE-2026-45946, CVE-2026-45947, CVE-2026-45948, CVE-2026-45954, CVE-2026-45957,     CVE-2026-45960, CVE-2026-45962, CVE-2026-45964, CVE-2026-45965, CVE-2026-45968, CVE-2026-45969,     CVE-2026-45970, CVE-2026-45972, CVE-2026-45973, CVE-2026-45974, CVE-2026-45976, CVE-2026-45978,     CVE-2026-45981, CVE-2026-45982, CVE-2026-45983, CVE-2026-45984, CVE-2026-45988, CVE-2026-46043,     CVE-2026-46115, CVE-2026-46119, CVE-2026-46135, CVE-2026-46185, CVE-2026-46195, CVE-2026-46243,     CVE-2026-46244, CVE-2026-46246, CVE-2026-46247, CVE-2026-46249, CVE-2026-46250, CVE-2026-46251,     CVE-2026-46253, CVE-2026-46254, CVE-2026-46255, CVE-2026-46259, CVE-2026-46260, CVE-2026-46261,     CVE-2026-46265, CVE-2026-46266, CVE-2026-46267, CVE-2026-46270, CVE-2026-46289, CVE-2026-46328)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8499-1 advisory.

    It was discovered that the Linux kernel algif_aead module did not properly handle in-place cryptographic     operations. This flaw is known as Copy Fail. A local attacker could use this to escalate privileges, or     possibly escape a container. (CVE-2026-31431)

    It was discovered that the Linux kernel did not properly handle shared page fragments during socket buffer     operations, collectively known as Dirty Frag. A logic flaw existed in the XFRM ESP-in-TCP subsystem and in     the RxRPC networking subsystem when processing paged fragments. A local attacker could use this to     escalate privileges, or possibly escape a container. (CVE-2026-43284, CVE-2026-43500, CVE-2026-45998,     CVE-2026-46000)

    It was discovered that a logic flaw existed in the XFRM ESP-in-TCP subsystem in the Linux kernel when     handling socket buffer fragments. This flaw is known as Fragnesia. A local attacker could use this to     escalate privileges, or possibly escape a container. (CVE-2026-43503, CVE-2026-46300)

    Qualys discovered that a race condition existed in the ptrace subsystem of the Linux kernel when     privileged processes are exiting. An unprivileged local attacker could use this issue to expose sensitive     information. (CVE-2026-46333)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a memory leak when handling     AppArmor notifications. A local attacker could use this to cause resource exhaustion. (CVE-2026-47326)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contain a NULL pointer dereference     when handling AppArmor notifications. A local attacker could use this to cause a kernel oops.
    (CVE-2026-47327)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an invalid free when     handling AppArmor notifications. A local attacker could use this to corrupt kernel memory.
    (CVE-2026-47328)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained insufficient validation of     AppArmor notification responses. A local attacker could use this to allow crafted responses to be     processed. (CVE-2026-47329)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 used an uninitialized variable when     handling AppArmor notifications. A local attacker could use this to cause incorrect caching of data.
    (CVE-2026-47330)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a use- after-free (UAF) bug. A local     attacker could use this to cause memory corruption and, theoretically, arbitrary code execution.
    (CVE-2026-47331)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained an out-of-bounds (OOB) read     when handling AppArmor notifications. A local attacker could use this to cause information disclosure of     kernel memory. (CVE-2026-47332)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained a out-of-bounds (OOB) read     when handling AppArmor notifications. A local attacker could use this to cause kernel memory corruption     and, theoretically, influence processing of AppArmor policies. (CVE-2026-47333)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8, 6.17 and 7.0 contained incorrect holding of locks     when handling AppArmor notifications. A local attacker could use this to cause a kernel panic or deadlock.
    (CVE-2026-47334)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8 contained a NULL pointer dereference when handling     AppArmor notifications. A local attacker could use this to cause a kernel panic. (CVE-2026-47335)

    Tristan Madani discovered that Ubuntu Linux kernel 6.8 used an uninitialized variable when handling     AppArmor AF_INET/AF_INET6 socket mediation. A local attacker could use this to influence processing of     fine- grained network socket mediation. (CVE-2026-47336)

    Tristan Madani and Trevor Lawrence have each independently discovered that Ubuntu Linux kernel 6.8, 6.17     and 7.0 contained a NULL pointer dereference when handling AppArmor network socket mediation. A local     attacker could use this to cause a kernel oops. (CVE-2026-47337)

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - Foo-over-UDP (FOU);

    - ARM64 architecture;

    - MIPS architecture;

    - PowerPC architecture;

    - x86 architecture;

    - Block layer subsystem;

    - Cryptographic API;

    - Intel NPU Driver;

    - ACPI drivers;

    - ATM drivers;

    - Drivers core;

    - Null block device driver;

    - RNBD block device driver;

    - Ublk userspace block driver;

    - Bluetooth drivers;

    - Bus devices;

    - Character device driver;

    - TPM device driver;

    - Clock framework and drivers;

    - Clocksource drivers;

    - Counter interface drivers;

    - CPU idle management framework;

    - Hardware crypto device drivers;

    - DMA engine subsystem;

    - DPLL subsystem;

    - EFI core;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - Hardware monitoring drivers;

    - Intel Trace Hub HW tracing drivers;

    - IIO subsystem;

    - IIO ADC drivers;

    - InfiniBand drivers;

    - On-Chip Interconnect management framework;

    - IOMMU subsystem;

    - IRQ chip drivers;

    - Modular ISDN driver;

    - LED subsystem;

    - Multiple devices driver;

    - Media drivers;

    - Multifunction device drivers;

    - Broadcom VK accelerator driver;

    - UACCE accelerator framework;

    - MMC subsystem;

    - MOST (Media Oriented Systems Transport) drivers;

    - MTD block device drivers;

    - Ethernet bonding driver;

    - Network drivers;

    - Mellanox network drivers;

    - STMicroelectronics network drivers;

    - NTB driver;

    - NVME drivers;

    - PCI subsystem;

    - Performance monitor drivers;

    - PHY drivers;

    - Pin controllers subsystem;

    - x86 platform drivers;

    - i.MX PM domains;

    - Power supply drivers;

    - RapidIO drivers;

    - RAS (Reliability, Availability, Serviceability) subsystem;

    - Remote Processor subsystem;

    - RPMSG subsystem;

    - S/390 drivers;

    - SCSI subsystem;

    - SLIMbus drivers;

    - MediaTek SoC drivers;

    - Texas Instruments SoC drivers;

    - SPI subsystem;

    - Greybus lights staging drivers;

    - Realtek RTL8723BS SDIO drivers;

    - TCM subsystem;

    - UFS subsystem;

    - ChipIdea USB driver;

    - DesignWare USB3 driver;

    - USB over IP driver;

    - vDPA drivers;

    - Virtio Host (VHOST) subsystem;

    - Framebuffer layer;

    - W1 Dallas's 1-wire bus driver;

    - Xen hypervisor drivers;

    - BTRFS file system;

    - File systems infrastructure;

    - Ceph distributed file system;

    - EFI Variable file system;

    - exFAT file system;

    - Ext4 file system;

    - F2FS file system;

    - FAT file system;

    - GFS2 file system;

    - HFS+ file system;

    - JFS file system;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - NTFS3 file system;

    - OCFS2 file system;

    - Proc file system;

    - Pstore file system;

    - Diskquota system;

    - SMB network file system;

    - XFS file system;

    - Audit subsystem;

    - Memory Management;

    - Scheduler infrastructure;

    - IPv6 networking;

    - Netfilter;

    - NFC subsystem;

    - Tracing infrastructure;

    - io_uring subsystem;

    - BPF subsystem;

    - Perf events;

    - Kernel kexec() syscall;

    - RCU subsystem;

    - Floating proportions library;

    - Scatterlist API;

    - Memory management;

    - 9P file system network protocol;

    - Asynchronous Transfer Mode (ATM) subsystem;

    - B.A.T.M.A.N. meshing protocol;

    - Bluetooth subsystem;

    - Ethernet bridge;

    - CAN network layer;

    - Ceph Core library;

    - Networking core;

    - IPv4 networking;

    - KCM (Kernel Connection Multiplexor) sockets driver;

    - L2TP protocol;

    - MAC80211 subsystem;

    - Multipath TCP;

    - NET/ROM layer;

    - Packet sockets;

    - RDS protocol;

    - RxRPC session sockets;

    - Network traffic control;

    - SCTP protocol;

    - SMC sockets;

    - Sun RPC protocol;

    - TLS protocol;

    - Unix domain sockets;

    - VMware vSockets driver;

    - Wireless networking;

    - X.25 network layer;

    - XFRM subsystem;

    - AppArmor security module;

    - Simplified Mandatory Access Control Kernel framework;

    - ALSA AC97 driver;

    - Generic PCM loopback sound driver;

    - Creative Sound Blaster X-Fi driver;

    - AMD SoC Alsa drivers;

    - Texas InstrumentS Audio (ASoC/HDA) drivers;

    - SOF drivers;

    - USB sound devices;

    - KVM subsystem; (CVE-2024-50004, CVE-2024-58096, CVE-2024-58097, CVE-2025-37926, CVE-2025-38201,     CVE-2025-38591, CVE-2025-40005, CVE-2025-40039, CVE-2025-40082, CVE-2025-40149, CVE-2025-68351,     CVE-2025-68358, CVE-2025-68365, CVE-2025-68725, CVE-2025-68749, CVE-2025-68803, CVE-2025-68823,     CVE-2025-71160, CVE-2025-71162, CVE-2025-71163, CVE-2025-71180, CVE-2025-71182, CVE-2025-71183,     CVE-2025-71184, CVE-2025-71185, CVE-2025-71186, CVE-2025-71188, CVE-2025-71189, CVE-2025-71190,     CVE-2025-71191, CVE-2025-71192, CVE-2025-71193, CVE-2025-71194, CVE-2025-71195, CVE-2025-71196,     CVE-2025-71197, CVE-2025-71198, CVE-2025-71199, CVE-2025-71200, CVE-2025-71220, CVE-2025-71222,     CVE-2025-71224, CVE-2025-71225, CVE-2025-71229, CVE-2025-71231, CVE-2025-71232, CVE-2025-71233,     CVE-2025-71235, CVE-2025-71236, CVE-2025-71237, CVE-2025-71238, CVE-2025-71239, CVE-2025-71265,     CVE-2025-71266, CVE-2025-71267, CVE-2025-71268, CVE-2025-71272, CVE-2025-71273, CVE-2025-71274,     CVE-2025-71286, CVE-2025-71291, CVE-2025-71292, CVE-2025-71294, CVE-2025-71295, CVE-2025-71297,     CVE-2025-71304, CVE-2025-71305, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978, CVE-2026-22979,     CVE-2026-22980, CVE-2026-22982, CVE-2026-22984, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992,     CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000,     CVE-2026-23001, CVE-2026-23003, CVE-2026-23005, CVE-2026-23006, CVE-2026-23010, CVE-2026-23011,     CVE-2026-23019, CVE-2026-23020, CVE-2026-23021, CVE-2026-23025, CVE-2026-23026, CVE-2026-23030,     CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23035, CVE-2026-23037, CVE-2026-23038,     CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23053, CVE-2026-23054, CVE-2026-23056,     CVE-2026-23057, CVE-2026-23058, CVE-2026-23059, CVE-2026-23061, CVE-2026-23062, CVE-2026-23063,     CVE-2026-23064, CVE-2026-23065, CVE-2026-23068, CVE-2026-23069, CVE-2026-23071, CVE-2026-23073,     CVE-2026-23075, CVE-2026-23076, CVE-2026-23078, CVE-2026-23080, CVE-2026-23083, CVE-2026-23084,     CVE-2026-23085, CVE-2026-23086, CVE-2026-23087, CVE-2026-23088, CVE-2026-23089, CVE-2026-23090,     CVE-2026-23091, CVE-2026-23093, CVE-2026-23094, CVE-2026-23095, CVE-2026-23096, CVE-2026-23097,     CVE-2026-23098, CVE-2026-23099, CVE-2026-23100, CVE-2026-23101, CVE-2026-23102, CVE-2026-23103,     CVE-2026-23105, CVE-2026-23107, CVE-2026-23108, CVE-2026-23110, CVE-2026-23113, CVE-2026-23116,     CVE-2026-23119, CVE-2026-23120, CVE-2026-23121, CVE-2026-23123, CVE-2026-23124, CVE-2026-23125,     CVE-2026-23126, CVE-2026-23128, CVE-2026-23129, CVE-2026-23131, CVE-2026-23133, CVE-2026-23135,     CVE-2026-23136, CVE-2026-23139, CVE-2026-23140, CVE-2026-23141, CVE-2026-23142, CVE-2026-23144,     CVE-2026-23145, CVE-2026-23146, CVE-2026-23148, CVE-2026-23150, CVE-2026-23151, CVE-2026-23156,     CVE-2026-23159, CVE-2026-23160, CVE-2026-23163, CVE-2026-23164, CVE-2026-23166, CVE-2026-23167,     CVE-2026-23168, CVE-2026-23169, CVE-2026-23170, CVE-2026-23172, CVE-2026-23173, CVE-2026-23176,     CVE-2026-23178, CVE-2026-23179, CVE-2026-23180, CVE-2026-23182, CVE-2026-23187, CVE-2026-23190,     CVE-2026-23191, CVE-2026-23193, CVE-2026-23198, CVE-2026-23200, CVE-2026-23202, CVE-2026-23204,     CVE-2026-23205, CVE-2026-23206, CVE-2026-23212, CVE-2026-23213, CVE-2026-23214, CVE-2026-23215,     CVE-2026-23216, CVE-2026-23220, CVE-2026-23221, CVE-2026-23222, CVE-2026-23228, CVE-2026-23229,     CVE-2026-23230, CVE-2026-23233, CVE-2026-23234, CVE-2026-23235, CVE-2026-23236, CVE-2026-23237,     CVE-2026-23238, CVE-2026-23241, CVE-2026-23242, CVE-2026-23243, CVE-2026-23249, CVE-2026-23254,     CVE-2026-23256, CVE-2026-23257, CVE-2026-23258, CVE-2026-23260, CVE-2026-23261, CVE-2026-23262,     CVE-2026-23264, CVE-2026-23266, CVE-2026-23267, CVE-2026-23272, CVE-2026-23274, CVE-2026-23278,     CVE-2026-23351, CVE-2026-23392, CVE-2026-23394, CVE-2026-23428, CVE-2026-23450, CVE-2026-23455,     CVE-2026-31402, CVE-2026-31411, CVE-2026-31418, CVE-2026-31419, CVE-2026-31436, CVE-2026-31448,     CVE-2026-31478, CVE-2026-31504, CVE-2026-31533, CVE-2026-31607, CVE-2026-31637, CVE-2026-31649,     CVE-2026-31657, CVE-2026-31659, CVE-2026-31668, CVE-2026-31669, CVE-2026-31676, CVE-2026-31682,     CVE-2026-31685, CVE-2026-31687, CVE-2026-31693, CVE-2026-43011, CVE-2026-43033, CVE-2026-43037,     CVE-2026-43038, CVE-2026-43071, CVE-2026-43077, CVE-2026-43078, CVE-2026-43114, CVE-2026-43117,     CVE-2026-43123, CVE-2026-43124, CVE-2026-43128, CVE-2026-43130, CVE-2026-43132, CVE-2026-43133,     CVE-2026-43134, CVE-2026-43135, CVE-2026-43136, CVE-2026-43137, CVE-2026-43139, CVE-2026-43140,     CVE-2026-43141, CVE-2026-43143, CVE-2026-43145, CVE-2026-43147, CVE-2026-43148, CVE-2026-43149,     CVE-2026-43150, CVE-2026-43152, CVE-2026-43153, CVE-2026-43156, CVE-2026-43157, CVE-2026-43158,     CVE-2026-43159, CVE-2026-43163, CVE-2026-43167, CVE-2026-43168, CVE-2026-43169, CVE-2026-43170,     CVE-2026-43171, CVE-2026-43173, CVE-2026-43175, CVE-2026-43180, CVE-2026-43182, CVE-2026-43183,     CVE-2026-43184, CVE-2026-43186, CVE-2026-43187, CVE-2026-43189, CVE-2026-43190, CVE-2026-43194,     CVE-2026-43196, CVE-2026-43199, CVE-2026-43200, CVE-2026-43201, CVE-2026-43202, CVE-2026-43203,     CVE-2026-43205, CVE-2026-43206, CVE-2026-43207, CVE-2026-43209, CVE-2026-43211, CVE-2026-43212,     CVE-2026-43214, CVE-2026-43215, CVE-2026-43218, CVE-2026-43221, CVE-2026-43222, CVE-2026-43223,     CVE-2026-43225, CVE-2026-43226, CVE-2026-43227, CVE-2026-43230, CVE-2026-43231, CVE-2026-43232,     CVE-2026-43233, CVE-2026-43236, CVE-2026-43238, CVE-2026-43239, CVE-2026-43241, CVE-2026-43242,     CVE-2026-43244, CVE-2026-43246, CVE-2026-43248, CVE-2026-43249, CVE-2026-43250, CVE-2026-43251,     CVE-2026-43253, CVE-2026-43255, CVE-2026-43256, CVE-2026-43257, CVE-2026-43258, CVE-2026-43261,     CVE-2026-43262, CVE-2026-43264, CVE-2026-43266, CVE-2026-43268, CVE-2026-43269, CVE-2026-43270,     CVE-2026-43271, CVE-2026-43273, CVE-2026-43275, CVE-2026-43277, CVE-2026-43278, CVE-2026-43279,     CVE-2026-43283, CVE-2026-43287, CVE-2026-43288, CVE-2026-43289, CVE-2026-43291, CVE-2026-43295,     CVE-2026-43296, CVE-2026-43297, CVE-2026-43300, CVE-2026-43302, CVE-2026-43304, CVE-2026-43312,     CVE-2026-43313, CVE-2026-43314, CVE-2026-43315, CVE-2026-43316, CVE-2026-43317, CVE-2026-43318,     CVE-2026-43319, CVE-2026-43320, CVE-2026-43341, CVE-2026-43378, CVE-2026-43383, CVE-2026-43384,     CVE-2026-43406, CVE-2026-43407, CVE-2026-43414, CVE-2026-43493, CVE-2026-43494, CVE-2026-43501,     CVE-2026-45847, CVE-2026-45848, CVE-2026-45849, CVE-2026-45851, CVE-2026-45852, CVE-2026-45856,     CVE-2026-45857, CVE-2026-45859, CVE-2026-45860, CVE-2026-45861, CVE-2026-45862, CVE-2026-45864,     CVE-2026-45865, CVE-2026-45866, CVE-2026-45867, CVE-2026-45868, CVE-2026-45869, CVE-2026-45870,     CVE-2026-45871, CVE-2026-45872, CVE-2026-45873, CVE-2026-45875, CVE-2026-45877, CVE-2026-45878,     CVE-2026-45879, CVE-2026-45880, CVE-2026-45881, CVE-2026-45882, CVE-2026-45883, CVE-2026-45884,     CVE-2026-45885, CVE-2026-45886, CVE-2026-45890, CVE-2026-45891, CVE-2026-45893, CVE-2026-45895,     CVE-2026-45902, CVE-2026-45904, CVE-2026-45905, CVE-2026-45910, CVE-2026-45912, CVE-2026-45913,     CVE-2026-45914, CVE-2026-45915, CVE-2026-45916, CVE-2026-45917, CVE-2026-45919, CVE-2026-45921,     CVE-2026-45923, CVE-2026-45928, CVE-2026-45935, CVE-2026-45936, CVE-2026-45938, CVE-2026-45941,     CVE-2026-45946, CVE-2026-45947, CVE-2026-45948, CVE-2026-45954, CVE-2026-45957, CVE-2026-45960,     CVE-2026-45962, CVE-2026-45964, CVE-2026-45965, CVE-2026-45968, CVE-2026-45969, CVE-2026-45970,     CVE-2026-45973, CVE-2026-45974, CVE-2026-45976, CVE-2026-45978, CVE-2026-45981, CVE-2026-45982,     CVE-2026-45983, CVE-2026-45984, CVE-2026-45988, CVE-2026-46028, CVE-2026-46043, CVE-2026-46115,     CVE-2026-46119, CVE-2026-46135, CVE-2026-46185, CVE-2026-46195, CVE-2026-46243, CVE-2026-46244,     CVE-2026-46246, CVE-2026-46247, CVE-2026-46249, CVE-2026-46250, CVE-2026-46251, CVE-2026-46253,     CVE-2026-46254, CVE-2026-46255, CVE-2026-46259, CVE-2026-46261, CVE-2026-46265, CVE-2026-46266,     CVE-2026-46267, CVE-2026-46270, CVE-2026-46289, CVE-2026-46323, CVE-2026-46328)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The remote Ubuntu 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8498-1 advisory.

    Several security issues were discovered in the Linux kernel. An attacker could possibly use these to     compromise the system. This update corrects flaws in the following subsystems:

    - ARM64 architecture;

    - MIPS architecture;

    - PowerPC architecture;

    - x86 architecture;

    - Block layer subsystem;

    - Cryptographic API;

    - ACPI drivers;

    - ATM drivers;

    - RNBD block device driver;

    - Ublk userspace block driver;

    - Bus devices;

    - Character device driver;

    - TPM device driver;

    - Clock framework and drivers;

    - Clocksource drivers;

    - CPU idle management framework;

    - Hardware crypto device drivers;

    - DMA engine subsystem;

    - EFI core;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - Hardware monitoring drivers;

    - IIO subsystem;

    - InfiniBand drivers;

    - IOMMU subsystem;

    - Multiple devices driver;

    - Media drivers;

    - Multifunction device drivers;

    - Broadcom VK accelerator driver;

    - MOST (Media Oriented Systems Transport) drivers;

    - MTD block device drivers;

    - Ethernet bonding driver;

    - Network drivers;

    - Mellanox network drivers;

    - STMicroelectronics network drivers;

    - NTB driver;

    - NVME drivers;

    - PCI subsystem;

    - Performance monitor drivers;

    - Pin controllers subsystem;

    - x86 platform drivers;

    - Power supply drivers;

    - RapidIO drivers;

    - RAS (Reliability, Availability, Serviceability) subsystem;

    - Remote Processor subsystem;

    - RPMSG subsystem;

    - S/390 drivers;

    - SCSI subsystem;

    - MediaTek SoC drivers;

    - Texas Instruments SoC drivers;

    - SPI subsystem;

    - Greybus lights staging drivers;

    - Realtek RTL8723BS SDIO drivers;

    - UFS subsystem;

    - ChipIdea USB driver;

    - DesignWare USB3 driver;

    - USB over IP driver;

    - vDPA drivers;

    - Virtio Host (VHOST) subsystem;

    - Framebuffer layer;

    - BTRFS file system;

    - File systems infrastructure;

    - Ceph distributed file system;

    - Ext4 file system;

    - F2FS file system;

    - FAT file system;

    - GFS2 file system;

    - HFS+ file system;

    - JFS file system;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - NTFS3 file system;

    - OCFS2 file system;

    - Proc file system;

    - Pstore file system;

    - Diskquota system;

    - SMB network file system;

    - XFS file system;

    - Audit subsystem;

    - Memory Management;

    - IPv6 networking;

    - Netfilter;

    - Tracing infrastructure;

    - Kernel kexec() syscall;

    - RCU subsystem;

    - Scheduler infrastructure;

    - Scatterlist API;

    - 9P file system network protocol;

    - Asynchronous Transfer Mode (ATM) subsystem;

    - B.A.T.M.A.N. meshing protocol;

    - Bluetooth subsystem;

    - Ethernet bridge;

    - Ceph Core library;

    - Networking core;

    - IPv4 networking;

    - KCM (Kernel Connection Multiplexor) sockets driver;

    - Multipath TCP;

    - NFC subsystem;

    - RDS protocol;

    - RxRPC session sockets;

    - Network traffic control;

    - SMC sockets;

    - Sun RPC protocol;

    - X.25 network layer;

    - XFRM subsystem;

    - AppArmor security module;

    - Simplified Mandatory Access Control Kernel framework;

    - SOF drivers;

    - USB sound devices; (CVE-2025-40005, CVE-2025-71229, CVE-2025-71231, CVE-2025-71232, CVE-2025-71235,     CVE-2025-71236, CVE-2025-71237, CVE-2025-71238, CVE-2025-71239, CVE-2025-71265, CVE-2025-71266,     CVE-2025-71267, CVE-2025-71272, CVE-2025-71273, CVE-2025-71274, CVE-2025-71286, CVE-2025-71291,     CVE-2025-71292, CVE-2025-71294, CVE-2025-71295, CVE-2025-71297, CVE-2025-71304, CVE-2025-71305,     CVE-2026-23100, CVE-2026-23169, CVE-2026-23220, CVE-2026-23221, CVE-2026-23222, CVE-2026-23228,     CVE-2026-23229, CVE-2026-23230, CVE-2026-23233, CVE-2026-23234, CVE-2026-23235, CVE-2026-23236,     CVE-2026-23237, CVE-2026-23238, CVE-2026-23241, CVE-2026-23242, CVE-2026-23243, CVE-2026-23249,     CVE-2026-23266, CVE-2026-23267, CVE-2026-23272, CVE-2026-23278, CVE-2026-23392, CVE-2026-23428,     CVE-2026-23450, CVE-2026-23455, CVE-2026-31402, CVE-2026-31411, CVE-2026-31418, CVE-2026-31436,     CVE-2026-31448, CVE-2026-31478, CVE-2026-31607, CVE-2026-31637, CVE-2026-31649, CVE-2026-31657,     CVE-2026-31659, CVE-2026-31668, CVE-2026-31669, CVE-2026-31682, CVE-2026-31685, CVE-2026-31687,     CVE-2026-31693, CVE-2026-43011, CVE-2026-43037, CVE-2026-43038, CVE-2026-43071, CVE-2026-43114,     CVE-2026-43117, CVE-2026-43123, CVE-2026-43124, CVE-2026-43128, CVE-2026-43130, CVE-2026-43132,     CVE-2026-43133, CVE-2026-43134, CVE-2026-43135, CVE-2026-43136, CVE-2026-43137, CVE-2026-43139,     CVE-2026-43140, CVE-2026-43141, CVE-2026-43143, CVE-2026-43145, CVE-2026-43147, CVE-2026-43148,     CVE-2026-43149, CVE-2026-43150, CVE-2026-43152, CVE-2026-43153, CVE-2026-43156, CVE-2026-43157,     CVE-2026-43158, CVE-2026-43159, CVE-2026-43163, CVE-2026-43167, CVE-2026-43168, CVE-2026-43169,     CVE-2026-43170, CVE-2026-43171, CVE-2026-43173, CVE-2026-43175, CVE-2026-43180, CVE-2026-43182,     CVE-2026-43183, CVE-2026-43184, CVE-2026-43186, CVE-2026-43187, CVE-2026-43189, CVE-2026-43190,     CVE-2026-43194, CVE-2026-43196, CVE-2026-43199, CVE-2026-43201, CVE-2026-43202, CVE-2026-43203,     CVE-2026-43205, CVE-2026-43206, CVE-2026-43207, CVE-2026-43209, CVE-2026-43211, CVE-2026-43212,     CVE-2026-43214, CVE-2026-43215, CVE-2026-43218, CVE-2026-43221, CVE-2026-43222, CVE-2026-43223,     CVE-2026-43225, CVE-2026-43226, CVE-2026-43227, CVE-2026-43230, CVE-2026-43231, CVE-2026-43232,     CVE-2026-43233, CVE-2026-43236, CVE-2026-43238, CVE-2026-43239, CVE-2026-43241, CVE-2026-43242,     CVE-2026-43244, CVE-2026-43246, CVE-2026-43248, CVE-2026-43249, CVE-2026-43250, CVE-2026-43251,     CVE-2026-43253, CVE-2026-43255, CVE-2026-43256, CVE-2026-43257, CVE-2026-43258, CVE-2026-43261,     CVE-2026-43262, CVE-2026-43264, CVE-2026-43266, CVE-2026-43268, CVE-2026-43269, CVE-2026-43270,     CVE-2026-43271, CVE-2026-43273, CVE-2026-43275, CVE-2026-43277, CVE-2026-43278, CVE-2026-43279,     CVE-2026-43283, CVE-2026-43287, CVE-2026-43288, CVE-2026-43289, CVE-2026-43291, CVE-2026-43295,     CVE-2026-43296, CVE-2026-43297, CVE-2026-43300, CVE-2026-43302, CVE-2026-43304, CVE-2026-43312,     CVE-2026-43313, CVE-2026-43314, CVE-2026-43315, CVE-2026-43316, CVE-2026-43317, CVE-2026-43318,     CVE-2026-43319, CVE-2026-43320, CVE-2026-43341, CVE-2026-43378, CVE-2026-43383, CVE-2026-43384,     CVE-2026-43406, CVE-2026-43407, CVE-2026-43414, CVE-2026-43493, CVE-2026-43501, CVE-2026-45847,     CVE-2026-45848, CVE-2026-45849, CVE-2026-45851, CVE-2026-45852, CVE-2026-45856, CVE-2026-45857,     CVE-2026-45859, CVE-2026-45860, CVE-2026-45861, CVE-2026-45862, CVE-2026-45864, CVE-2026-45865,     CVE-2026-45866, CVE-2026-45867, CVE-2026-45868, CVE-2026-45869, CVE-2026-45870, CVE-2026-45871,     CVE-2026-45872, CVE-2026-45873, CVE-2026-45875, CVE-2026-45877, CVE-2026-45878, CVE-2026-45879,     CVE-2026-45880, CVE-2026-45881, CVE-2026-45882, CVE-2026-45883, CVE-2026-45884, CVE-2026-45885,     CVE-2026-45886, CVE-2026-45890, CVE-2026-45891, CVE-2026-45893, CVE-2026-45895, CVE-2026-45902,     CVE-2026-45904, CVE-2026-45905, CVE-2026-45910, CVE-2026-45912, CVE-2026-45913, CVE-2026-45914,     CVE-2026-45915, CVE-2026-45916, CVE-2026-45917, CVE-2026-45919, CVE-2026-45921, CVE-2026-45923,     CVE-2026-45928, CVE-2026-45935, CVE-2026-45936, CVE-2026-45938, CVE-2026-45941, CVE-2026-45946,     CVE-2026-45947, CVE-2026-45948, CVE-2026-45954, CVE-2026-45957, CVE-2026-45960, CVE-2026-45962,     CVE-2026-45964, CVE-2026-45965, CVE-2026-45968, CVE-2026-45969, CVE-2026-45970, CVE-2026-45972,     CVE-2026-45973, CVE-2026-45974, CVE-2026-45976, CVE-2026-45978, CVE-2026-45981, CVE-2026-45982,     CVE-2026-45983, CVE-2026-45984, CVE-2026-45988, CVE-2026-46043, CVE-2026-46115, CVE-2026-46119,     CVE-2026-46135, CVE-2026-46185, CVE-2026-46195, CVE-2026-46243, CVE-2026-46244, CVE-2026-46246,     CVE-2026-46247, CVE-2026-46249, CVE-2026-46250, CVE-2026-46251, CVE-2026-46253, CVE-2026-46254,     CVE-2026-46255, CVE-2026-46259, CVE-2026-46260, CVE-2026-46261, CVE-2026-46265, CVE-2026-46266,     CVE-2026-46267, CVE-2026-46270, CVE-2026-46289, CVE-2026-46328)

Tenable has extracted the preceding description block directly from the Ubuntu security advisory.

Note that Nessus has not tested for these issues but has instead relied only on the application's self-reported version number.

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available.

  - fbdev: rivafb: fix divide error in nv3_arb() A userspace program can trigger the RIVA NV3 arbitration code     by calling the FBIOPUT_VSCREENINFO ioctl on /dev/fb*. When doing so, the driver recomputes FIFO     arbitration parameters in nv3_arb(), using state->mclk_khz (derived from the PRAMDAC MCLK PLL) as a     divisor without validating it first. In a normal setup, state->mclk_khz is provided by the real hardware     and is non-zero. However, an attacker can construct a malicious or misconfigured device (e.g. a     crafted/emulated PCI device) that exposes a bogus PLL configuration, causing state->mclk_khz to become     zero. Once nv3_get_param() calls nv3_arb(), the division by state->mclk_khz in the gns calculation causes     a divide error and crashes the kernel. Fix this by checking whether state->mclk_khz is zero and bailing     out before doing the division. The following log reveals it: rivafb: setting virtual Y resolution to 2184     divide error: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 PID: 2187 Comm: syz-executor.0 Not tainted     5.18.0-rc1+ #1 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS     rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:nv3_arb     drivers/video/fbdev/riva/riva_hw.c:439 [inline] RIP: 0010:nv3_get_param+0x3ab/0x13b0     drivers/video/fbdev/riva/riva_hw.c:546 Call Trace: nv3CalcArbitration.constprop.0+0x255/0x460     drivers/video/fbdev/riva/riva_hw.c:603 nv3UpdateArbitrationSettings drivers/video/fbdev/riva/riva_hw.c:637     [inline] CalcStateExt+0x447/0x1b90 drivers/video/fbdev/riva/riva_hw.c:1246     riva_load_video_mode+0x8a9/0xea0 drivers/video/fbdev/riva/fbdev.c:779 rivafb_set_par+0xc0/0x5f0     drivers/video/fbdev/riva/fbdev.c:1196 fb_set_var+0x604/0xeb0 drivers/video/fbdev/core/fbmem.c:1033     do_fb_ioctl+0x234/0x670 drivers/video/fbdev/core/fbmem.c:1109 fb_ioctl+0xdd/0x130     drivers/video/fbdev/core/fbmem.c:1188 __x64_sys_ioctl+0x122/0x190 fs/ioctl.c:856 (CVE-2026-23266)

Note that Nessus relies on the presence of the package as reported by the vendor.

ID	Name	Product	Family	Type	Severity
336640	Unity Linux 20.1050e Security Update: kernel (UTSA-2026-099963)	Nessus	Unity Linux Local Security Checks	Local	medium
336583	Unity Linux 20.1050a Security Update: kernel (UTSA-2026-100331)	Nessus	Unity Linux Local Security Checks	Local	medium
333941	Photon OS 5.0: Linux PHSA-2026-5.0-92-0926	Nessus	PhotonOS Local Security Checks	Local	high
332555	Photon OS 5.0: Linux PHSA-2026-5.0-91-0779	Nessus	PhotonOS Local Security Checks	Local	medium
329326	Photon OS 5.0: Linux PHSA-2026-5.0-0926	Nessus	PhotonOS Local Security Checks	Local	high
325292	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2026-50372)	Nessus	Oracle Linux Local Security Checks	Local	high
325012	Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel (Low Latency) vulnerabilities (USN-8497-1)	Nessus	Ubuntu Local Security Checks	Local	high
325011	Ubuntu 22.04 LTS / 24.04 LTS : Linux kernel vulnerabilities (USN-8492-1)	Nessus	Ubuntu Local Security Checks	Local	high
325008	Ubuntu 24.04 LTS : Linux kernel (Xilinx) vulnerabilities (USN-8499-1)	Nessus	Ubuntu Local Security Checks	Local	high
325005	Ubuntu 24.04 LTS : Linux kernel (NVIDIA Tegra) vulnerabilities (USN-8498-1)	Nessus	Ubuntu Local Security Checks	Local	high
324048	SUSE SLED15: cluster-md-kmp-default / dlm-kmp-default / gfs2-kmp-default / etc (SUSE-SU-2026:2238-1)	Nessus	SuSE Local Security Checks	Local	high
319659	SUSE SLES16 Security Update : kernel (SUSE-SU-2026:21845-1)	Nessus	SuSE Local Security Checks	Local	high
318240	SUSE SLES16 Security Update : kernel (SUSE-SU-2026:21860-1)	Nessus	SuSE Local Security Checks	Local	high
318102	openSUSE 16 Security Update : kernel (openSUSE-SU-2026:20826-1)	Nessus	SuSE Local Security Checks	Local	high
303156	Linux Distros Unpatched Vulnerability : CVE-2026-23266	Nessus	Misc.	Local	medium
300899	Photon OS 5.0: Linux PHSA-2026-5.0-0779	Nessus	PhotonOS Local Security Checks	Local	high
300477	Photon OS 4.0: Linux PHSA-2026-4.0-0969	Nessus	PhotonOS Local Security Checks	Local	high

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CVE-2026-23266

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