In the Linux kernel, the following vulnerability has been resolved: x86/mm: Eliminate window where TLB flushes may be inadvertently skipped tl;dr: There is a window in the mm switching code where the new CR3 is set and the CPU should be getting TLB flushes for the new mm. But should_flush_tlb() has a bug and suppresses the flush. Fix it by widening the window where should_flush_tlb() sends an IPI. Long Version: === History === There were a few things leading up to this. First, updating mm_cpumask() was observed to be too expensive, so it was made lazier. But being lazy caused too many unnecessary IPIs to CPUs due to the now-lazy mm_cpumask(). So code was added to cull mm_cpumask() periodically[2]. But that culling was a bit too aggressive and skipped sending TLB flushes to CPUs that need them. So here we are again. === Problem === The too-aggressive code in should_flush_tlb() strikes in this window: // Turn on IPIs for this CPU/mm combination, but only // if should_flush_tlb() agrees: cpumask_set_cpu(cpu, mm_cpumask(next)); next_tlb_gen = atomic64_read(&next->context.tlb_gen); choose_new_asid(next, next_tlb_gen, &new_asid, &need_flush); load_new_mm_cr3(need_flush); // ^ After 'need_flush' is set to false, IPIs *MUST* // be sent to this CPU and not be ignored. this_cpu_write(cpu_tlbstate.loaded_mm, next); // ^ Not until this point does should_flush_tlb() // become true! should_flush_tlb() will suppress TLB flushes between load_new_mm_cr3() and writing to 'loaded_mm', which is a window where they should not be suppressed. Whoops. === Solution === Thankfully, the fuzzy "just about to write CR3" window is already marked with loaded_mm==LOADED_MM_SWITCHING. Simply checking for that state in should_flush_tlb() is sufficient to ensure that the CPU is targeted with an IPI. This will cause more TLB flush IPIs. But the window is relatively small and I do not expect this to cause any kind of measurable performance impact. Update the comment where LOADED_MM_SWITCHING is written since it grew yet another user. Peter Z also raised a concern that should_flush_tlb() might not observe 'loaded_mm' and 'is_lazy' in the same order that switch_mm_irqs_off() writes them. Add a barrier to ensure that they are observed in the order they are written.

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7686-1 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:

    - PA-RISC architecture;

    - PowerPC architecture;

    - x86 architecture;

    - Block layer subsystem;

    - Cryptographic API;

    - Serial ATA and Parallel ATA drivers;

    - Bluetooth drivers;

    - Bus devices;

    - CPU frequency scaling framework;

    - Buffer Sharing and Synchronization framework;

    - DMA engine subsystem;

    - ARM SCMI message protocol;

    - GPU drivers;

    - HID subsystem;

    - HSI subsystem;

    - I2C subsystem;

    - I3C subsystem;

    - IIO subsystem;

    - InfiniBand drivers;

    - IOMMU subsystem;

    - IRQ chip drivers;

    - MCB driver;

    - Multiple devices driver;

    - Media drivers;

    - Multifunction device drivers;

    - PCI Endpoint Test driver;

    - MTD block device drivers;

    - Network drivers;

    - Device tree and open firmware driver;

    - PCI subsystem;

    - TI SCI PM domains driver;

    - PWM drivers;

    - S/390 drivers;

    - SCSI subsystem;

    - Samsung SoC drivers;

    - TCM subsystem;

    - TTY drivers;

    - UFS subsystem;

    - Cadence USB3 driver;

    - ChipIdea USB driver;

    - USB Device Class drivers;

    - DesignWare USB3 driver;

    - USB Gadget drivers;

    - USB Type-C support driver;

    - USB Type-C Connector System Software Interface driver;

    - Backlight driver;

    - Framebuffer layer;

    - Xen hypervisor drivers;

    - BTRFS file system;

    - Ext4 file system;

    - F2FS file system;

    - File systems infrastructure;

    - JFS file system;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - Proc file system;

    - SMB network file system;

    - Kernel stack handling interfaces;

    - Bluetooth subsystem;

    - Network traffic control;

    - SCTP protocol;

    - BPF subsystem;

    - Kernel command line parsing driver;

    - Tracing infrastructure;

    - Memory management;

    - 802.1Q VLAN protocol;

    - Networking core;

    - IPv6 networking;

    - MAC80211 subsystem;

    - Management Component Transport Protocol (MCTP);

    - Multipath TCP;

    - Netfilter;

    - Open vSwitch;

    - Phonet protocol;

    - TIPC protocol;

    - TLS protocol;

    - Virtio sound driver;

    - CPU Power monitoring subsystem; (CVE-2024-50280, CVE-2025-23159, CVE-2024-26686, CVE-2025-37797,     CVE-2024-50047, CVE-2025-37810, CVE-2025-37796, CVE-2024-26739, CVE-2022-49535, CVE-2025-37808,     CVE-2025-37824, CVE-2025-37923, CVE-2025-37885, CVE-2025-23145, CVE-2025-37913, CVE-2025-23144,     CVE-2025-37767, CVE-2024-50258, CVE-2024-46742, CVE-2025-37819, CVE-2025-37794, CVE-2025-21853,     CVE-2025-37858, CVE-2025-37766, CVE-2025-23156, CVE-2025-38083, CVE-2024-46787, CVE-2025-38009,     CVE-2025-37881, CVE-2024-54458, CVE-2025-37940, CVE-2025-37911, CVE-2025-37792, CVE-2024-46816,     CVE-2025-37738, CVE-2025-37851, CVE-2025-37749, CVE-2025-37994, CVE-2024-50272, CVE-2025-37915,     CVE-2025-23140, CVE-2024-53203, CVE-2025-37969, CVE-2025-37995, CVE-2025-37930, CVE-2024-56751,     CVE-2025-23146, CVE-2024-50125, CVE-2025-37998, CVE-2025-37787, CVE-2025-37798, CVE-2025-37742,     CVE-2025-23148, CVE-2024-35866, CVE-2025-37982, CVE-2025-23142, CVE-2025-37964, CVE-2025-37768,     CVE-2022-49063, CVE-2025-37949, CVE-2025-37990, CVE-2025-38094, CVE-2025-37788, CVE-2025-37857,     CVE-2024-49960, CVE-2022-49168, CVE-2022-48893, CVE-2024-46774, CVE-2025-37905, CVE-2025-38001,     CVE-2025-37992, CVE-2025-37841, CVE-2024-38541, CVE-2025-37862, CVE-2025-37912, CVE-2025-37838,     CVE-2025-37771, CVE-2024-35867, CVE-2025-38023, CVE-2024-49989, CVE-2025-37997, CVE-2025-37970,     CVE-2025-23151, CVE-2025-37758, CVE-2025-37844, CVE-2025-37871, CVE-2025-38024, CVE-2025-37914,     CVE-2024-53051, CVE-2025-37829, CVE-2025-37770, CVE-2025-38000, CVE-2025-23163, CVE-2025-37875,     CVE-2025-37927, CVE-2025-37850, CVE-2025-37839, CVE-2025-37780, CVE-2024-53128, CVE-2025-37883,     CVE-2025-37740, CVE-2025-37840, CVE-2025-23150, CVE-2024-50073, CVE-2025-23158, CVE-2025-37909,     CVE-2025-37789, CVE-2024-35943, CVE-2024-38540, CVE-2025-37739, CVE-2025-37985, CVE-2025-37932,     CVE-2025-37892, CVE-2025-37812, CVE-2025-37765, CVE-2025-37983, CVE-2025-37741, CVE-2023-52572,     CVE-2025-37823, CVE-2024-46751, CVE-2025-23157, CVE-2025-37967, CVE-2025-38177, CVE-2024-35790,     CVE-2025-37773, CVE-2024-36908, CVE-2024-27402, CVE-2025-37991, CVE-2025-37890, CVE-2025-23161,     CVE-2025-37790, CVE-2025-22027, CVE-2025-38005, CVE-2025-37811, CVE-2025-37989, CVE-2025-37836,     CVE-2025-23147, CVE-2025-21839, CVE-2025-37830, CVE-2025-37781, CVE-2023-52757, CVE-2024-42322,     CVE-2025-37817, CVE-2025-37803, CVE-2025-37805, CVE-2025-37859, CVE-2025-37756, CVE-2025-22062,     CVE-2022-21546, CVE-2025-37867, CVE-2025-37757)

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 Oracle Linux 10 / 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2025-20480 advisory.

    - sunrpc: handle SVC_GARBAGE during svc auth processing as auth error (Jeff Layton)  [Orabug: 38178286]     {CVE-2025-38089}
    - Add Zen34 clients (Borislav Petkov (AMD))  [Orabug: 38023239]  {CVE-2024-36350} {CVE-2024-36357}
    - x86/process: Move the buffer clearing before MONITOR (Kim Phillips)  [Orabug: 38023239]     {CVE-2024-36350} {CVE-2024-36357}
    - Add normal counters (Borislav Petkov (AMD))  [Orabug: 38023239]  {CVE-2024-36350} {CVE-2024-36357}
    - KVM: SVM: Advertize TSA CPUID bits to guests (Borislav Petkov (AMD))  [Orabug: 38023239]     {CVE-2024-36350} {CVE-2024-36357}
    - x86/bugs: Add a Transient Scheduler Attacks mitigation (Borislav Petkov (AMD))  [Orabug: 38023239]     {CVE-2024-36350} {CVE-2024-36357}
    - x86/bugs: Rename MDS machinery to something more generic (Borislav Petkov (AMD))  [Orabug: 38023239]     {CVE-2024-36350} {CVE-2024-36357}
    - block: fix adding folio to bio (Ming Lei) [Orabug: 37844657] {CVE-2025-22122}
    - f2fs: fix to avoid accessing uninitialized curseg (Chao Yu) [Orabug: 37844644] {CVE-2025-22123}
    - gpio: virtuser: fix potential out-of-bound write (Markus Burri) [Orabug: 38095181] {CVE-2025-38082}
    - net_sched: hfsc: Address reentrant enqueue adding class to eltree twice (Pedro Tammela) [Orabug:
    38049363] {CVE-2025-38001}
    - smb: client: Fix use-after-free in cifs_fill_dirent (Zhaolong Wang) [Orabug: 38094970] {CVE-2025-38051}
    - platform/x86: dell-wmi-sysman: Avoid buffer overflow in current_password_store() (Vladimir Moskovkin)     [Orabug: 38095141] {CVE-2025-38077}
    - ALSA: pcm: Fix race of buffer access at PCM OSS layer (Takashi Iwai) [Orabug: 38095145] {CVE-2025-38078}
    - can: bcm: add missing rcu read protection for procfs content (Oliver Hartkopp) [Orabug: 38049369]     {CVE-2025-38003}
    - can: bcm: add locking for bcm_op runtime updates (Oliver Hartkopp) [Orabug: 38049374] {CVE-2025-38004}
    - padata: do not leak refcount in reorder_work (Dominik Grzegorzek) [Orabug: 38094842] {CVE-2025-38031}
    - crypto: algif_hash - fix double free in hash_accept (Ivan Pravdin) [Orabug: 38095153] {CVE-2025-38079}
    - net/tipc: fix slab-use-after-free Read in tipc_aead_encrypt_done (Wang Liang) [Orabug: 38094978]     {CVE-2025-38052}
    - sch_hfsc: Fix qlen accounting bug when using peek in hfsc_enqueue() (Cong Wang) [Orabug: 38049357]     {CVE-2025-38000}
    - idpf: fix null-ptr-deref in idpf_features_check (Pavan Kumar Linga) [Orabug: 38094982] {CVE-2025-38053}
    - ptp: ocp: Limit signal/freq counts in summary output functions (Sagi Maimon) [Orabug: 38094984]     {CVE-2025-38054}
    - perf/x86/intel: Fix segfault with PEBS-via-PT with sample_freq (Adrian Hunter) [Orabug: 38094988]     {CVE-2025-38055}
    - ASoC: SOF: Intel: hda: Fix UAF when reloading module (Tavian Barnes) [Orabug: 38094991] {CVE-2025-38056}
    - espintcp: fix skb leaks (Sabrina Dubroca) [Orabug: 38094993] {CVE-2025-38057}
    - __legitimize_mnt(): check for MNT_SYNC_UMOUNT should be under mount_lock (Al Viro) [Orabug: 38095000]     {CVE-2025-38058}
    - x86/Kconfig: make CFI_AUTO_DEFAULT depend on !RUST or Rust >= 1.88 (Pawel Anikiel) [Orabug: 38094847]     {CVE-2025-38033}
    - btrfs: avoid NULL pointer dereference if no valid csum tree (Qu Wenruo) [Orabug: 38095010]     {CVE-2025-38059}
    - btrfs: correct the order of prelim_ref arguments in btrfs__prelim_ref (Goldwyn Rodrigues) [Orabug:
    38094856] {CVE-2025-38034}
    - nvmet-tcp: don't restore null sk_state_change (Alistair Francis) [Orabug: 38094863] {CVE-2025-38035}
    - vxlan: Annotate FDB data races (Ido Schimmel) [Orabug: 38094879] {CVE-2025-38037}
    - cpufreq: amd-pstate: Remove unnecessary driver_lock in set_boost (Dhananjay Ugwekar) [Orabug: 38094888]     {CVE-2025-38038}
    - drm/amd/display: Increase block_sequence array size (Joshua Aberback) [Orabug: 38095164]     {CVE-2025-38080}
    - bpf: copy_verifier_state() should copy 'loop_entry' field (Eduard Zingerman) [Orabug: 38095018]     {CVE-2025-38060}
    - serial: mctrl_gpio: split disable_ms into sync and no_sync APIs (Alexis Lothore) [Orabug: 38094901]     {CVE-2025-38040}
    - net: pktgen: fix access outside of user given buffer in pktgen_thread_write() (Peter Seiderer) [Orabug:
    38095024] {CVE-2025-38061}
    - genirq/msi: Store the IOMMU IOVA directly in msi_desc instead of iommu_cookie (Jason Gunthorpe) [Orabug:
    38095031] {CVE-2025-38062}
    - dm: fix unconditional IO throttle caused by REQ_PREFLUSH (Jinliang Zheng) [Orabug: 38095038]     {CVE-2025-38063}
    - firmware: arm_ffa: Set dma_mask for ffa devices (Viresh Kumar) [Orabug: 38094925] {CVE-2025-38043}
    - media: cx231xx: set device_caps for 417 (Hans Verkuil) [Orabug: 38094934] {CVE-2025-38044}
    - orangefs: Do not truncate file size (Matthew Wilcox) [Orabug: 38095056] {CVE-2025-38065}
    - dm cache: prevent BUG_ON by blocking retries on failed device resumes (Ming-Hung Tsai) [Orabug:
    38095063] {CVE-2025-38066}
    - crypto: lzo - Fix compression buffer overrun (Herbert Xu) [Orabug: 38095079] {CVE-2025-38068}
    - PCI: endpoint: pci-epf-test: Fix double free that causes kernel to oops (Christian Bruel) [Orabug:
    38095087] {CVE-2025-38069}
    - wifi: iwlwifi: fix debug actions order (Johannes Berg) [Orabug: 38094942] {CVE-2025-38045}
    - x86/mm: Check return value from memblock_phys_alloc_range() (Philip Redkin) [Orabug: 38095101]     {CVE-2025-38071}
    - libnvdimm/labels: Fix divide error in nd_label_data_init() (Robert Richter) [Orabug: 38095109]     {CVE-2025-38072}
    - spi-rockchip: Fix register out of bounds access (Luis de Arquer) [Orabug: 38095173] {CVE-2025-38081}
    - x86/fred: Fix system hang during S4 resume with FRED enabled (Xin Li) [Orabug: 38094951]     {CVE-2025-38047}
    - block: fix race between set_blocksize and read paths (Darrick J. Wong) [Orabug: 38095117]     {CVE-2025-38073}
    - virtio_ring: Fix data race by tagging event_triggered as racy for KCSAN (Zhongqiu Han) [Orabug:
    38094958] {CVE-2025-38048}
    - scsi: target: iscsi: Fix timeout on deleted connection (Dmitry Bogdanov) [Orabug: 38095134]     {CVE-2025-38075}
    - usb: typec: ucsi: displayport: Fix deadlock (Andrei Kuchynski) [Orabug: 37977018] {CVE-2025-37967}
    - Bluetooth: btnxpuart: Fix kernel panic during FW release (Neeraj Sanjay Kale) [Orabug: 37844459]     {CVE-2025-22102}
    - iio: light: opt3001: fix deadlock due to concurrent flag access (Luca Ceresoli) [Orabug: 37977026]     {CVE-2025-37968}
    - mm/page_alloc: fix race condition in unaccepted memory handling (Kirill A. Shutemov) [Orabug: 38094767]     {CVE-2025-38008}
    - dmaengine: idxd: Refactor remove call with idxd_cleanup() helper (Shuai Xue) [Orabug: 38094790]     {CVE-2025-38014}
    - dmaengine: idxd: fix memory leak in error handling path of idxd_alloc (Shuai Xue) [Orabug: 38094793]     {CVE-2025-38015}
    - dmaengine: ti: k3-udma: Add missing locking (Ronald Wahl) [Orabug: 38094756] {CVE-2025-38005}
    - wifi: mt76: disable napi on driver removal (Fedor Pchelkin) [Orabug: 38094770] {CVE-2025-38009}
    - phy: tegra: xusb: Use a bitmask for UTMI pad power state tracking (Wayne Chang) [Orabug: 38094777]     {CVE-2025-38010}
    - drm/amdgpu: csa unmap use uninterruptible lock (Philip Yang) [Orabug: 38094779] {CVE-2025-38011}
    - HID: bpf: abort dispatch if device destroyed (Rongrong) [Orabug: 38094796] {CVE-2025-38016}
    - sched_ext: bpf_iter_scx_dsq_new() should always initialize iterator (Tejun Heo) [Orabug: 38094786]     {CVE-2025-38012}
    - net/tls: fix kernel panic when alloc_page failed (Pengtao He) [Orabug: 38094802] {CVE-2025-38018}
    - mlxsw: spectrum_router: Fix use-after-free when deleting GRE net devices (Ido Schimmel) [Orabug:
    38094804] {CVE-2025-38019}
    - wifi: mac80211: Set n_channels after allocating struct cfg80211_scan_request (Kees Cook) [Orabug:
    38094788] {CVE-2025-38013}
    - regulator: max20086: fix invalid memory access (Cosmin Tanislav) [Orabug: 38094833] {CVE-2025-38027}
    - net/mlx5e: Disable MACsec offload for uplink representor profile (Carolina Jubran) [Orabug: 38094808]     {CVE-2025-38020}
    - net_sched: Flush gso_skb list too during ->change() (Cong Wang) [Orabug: 37998128] {CVE-2025-37992}
    - RDMA/core: Fix 'KASAN: slab-use-after-free Read in ib_register_device' problem (Zhu Yanjun) [Orabug:
    38094813] {CVE-2025-38022}
    - nfs: handle failure of nfs_get_lock_context in unlock path (Li Lingfeng) [Orabug: 38094818]     {CVE-2025-38023}
    - HID: uclogic: Add NULL check in uclogic_input_configured() (Henry Martin) [Orabug: 38094764]     {CVE-2025-38007}
    - RDMA/rxe: Fix slab-use-after-free Read in rxe_queue_cleanup bug (Zhu Yanjun) [Orabug: 38094827]     {CVE-2025-38024}
    - arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users (James Morse) [Orabug: 37977004]     {CVE-2025-37963}
    - arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs (James Morse) [Orabug: 37976926]     {CVE-2025-37948}
    - usb: typec: ucsi: displayport: Fix NULL pointer access (Andrei Kuchynski) [Orabug: 38015126]     {CVE-2025-37994}
    - module: ensure that kobject_put() is safe for module type kobjects (Dmitry Antipov) [Orabug: 38015131]     {CVE-2025-37995}
    - memblock: Accept allocated memory before use in memblock_double_array() (Tom Lendacky) [Orabug:
    37976994] {CVE-2025-37960}
    - xenbus: Use kref to track req lifetime (Jason Andryuk) [Orabug: 37976934] {CVE-2025-37949}
    - smb: client: Avoid race in open_cached_dir with lease breaks (Paul Aurich) [Orabug: 37976959]     {CVE-2025-37954}
    - drm/amd/display: Fix invalid context error in dml helper (Roman Li) [Orabug: 37977185] {CVE-2025-37965}
    - drm/v3d: Add job to pending list if the reset was skipped (Maira Canal) [Orabug: 37976942]     {CVE-2025-37951}
    - iio: imu: st_lsm6dsx: fix possible lockup in st_lsm6dsx_read_tagged_fifo (Silvano Seva) [Orabug:
    37977031] {CVE-2025-37969}
    - iio: imu: st_lsm6dsx: fix possible lockup in st_lsm6dsx_read_fifo (Silvano Seva) [Orabug: 37977037]     {CVE-2025-37970}
    - KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception (Mikhail Lobanov) [Orabug: 37976977]     {CVE-2025-37957}
    - mm/huge_memory: fix dereferencing invalid pmd migration entry (Gavin Guo) [Orabug: 37976982]     {CVE-2025-37958}
    - x86/mm: Eliminate window where TLB flushes may be inadvertently skipped (Dave Hansen) [Orabug: 37977013]     {CVE-2025-37964}
    - staging: bcm2835-camera: Initialise dev in v4l2_dev (Dave Stevenson) [Orabug: 37977042] {CVE-2025-37971}
    - Input: mtk-pmic-keys - fix possible null pointer dereference (Gary Bisson) [Orabug: 37977044]     {CVE-2025-37972}
    - bpf: Scrub packet on bpf_redirect_peer (Paul Chaignon) [Orabug: 37976990] {CVE-2025-37959}
    - netfilter: ipset: fix region locking in hash types (Jozsef Kadlecsik) [Orabug: 38015141]     {CVE-2025-37997}
    - ipvs: fix uninit-value for saddr in do_output_route4 (Julian Anastasov) [Orabug: 37976996]     {CVE-2025-37961}
    - can: m_can: m_can_class_allocate_dev(): initialize spin lock on device probe (Antonios Salios) [Orabug:
    38015123] {CVE-2025-37993}
    - virtio-net: free xsk_buffs on error in virtnet_xsk_pool_enable() (Jakub Kicinski) [Orabug: 37976969]     {CVE-2025-37955}
    - sch_htb: make htb_deactivate() idempotent (Cong Wang) [Orabug: 37977176] {CVE-2025-37953}
    - ksmbd: fix memory leak in parse_lease_state() (Zhaolong Wang) [Orabug: 37977180] {CVE-2025-37962}
    - openvswitch: Fix unsafe attribute parsing in output_userspace() (Eelco Chaudron) [Orabug: 38015148]     {CVE-2025-37998}
    - ksmbd: Fix UAF in __close_file_table_ids (Sean Heelan) [Orabug: 37976951] {CVE-2025-37952}
    - ksmbd: prevent out-of-bounds stream writes by validating *pos (Norbert Szetei) [Orabug: 37976923]     {CVE-2025-37947}
    - ksmbd: prevent rename with empty string (Namjae Jeon) [Orabug: 37976972] {CVE-2025-37956}
    - s390/pci: Fix duplicate pci_dev_put() in disable_slot() when PF has child VFs (Niklas Schnelle) [Orabug:
    37976920] {CVE-2025-37946}
    - wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation (Veerendranath     Jakkam) [Orabug: 37977046] {CVE-2025-37973}
    - s390/pci: Fix missing check for zpci_create_device() error return (Niklas Schnelle) [Orabug: 37977050]     {CVE-2025-37974}
    - fs/erofs/fileio: call erofs_onlinefolio_split() after bio_add_folio() (Max Kellermann) [Orabug:
    38015155] {CVE-2025-37999}
    - mlxbf-bootctl: use sysfs_emit_at() in secure_boot_fuse_state_show() (David Thompson) [Orabug:
    37964051,38037120] {CVE-2025-37866}

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 20.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7655-1 advisory.

    Michael Randrianantenaina discovered that the Bluetooth driver in the Linux Kernel contained an improper     access control vulnerability. A nearby attacker could use this to connect a rougue device and possibly     execute arbitrary code. (CVE-2024-8805)

    It was discovered that the CIFS network file system implementation in the Linux kernel did not properly     verify the target namespace when handling upcalls. An attacker could use this to expose sensitive     information. (CVE-2025-2312)

    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:

    - PA-RISC architecture;

    - PowerPC architecture;

    - x86 architecture;

    - Block layer subsystem;

    - Cryptographic API;

    - ACPI drivers;

    - Serial ATA and Parallel ATA drivers;

    - Bluetooth drivers;

    - Bus devices;

    - Clock framework and drivers;

    - CPU frequency scaling framework;

    - Buffer Sharing and Synchronization framework;

    - DMA engine subsystem;

    - ARM SCMI message protocol;

    - GPU drivers;

    - HID subsystem;

    - HSI subsystem;

    - I2C subsystem;

    - I3C subsystem;

    - IIO subsystem;

    - InfiniBand drivers;

    - IOMMU subsystem;

    - IRQ chip drivers;

    - MCB driver;

    - Multiple devices driver;

    - Media drivers;

    - MemoryStick subsystem;

    - Multifunction device drivers;

    - PCI Endpoint Test driver;

    - MTD block device drivers;

    - Network drivers;

    - Mellanox network drivers;

    - NTB driver;

    - Device tree and open firmware driver;

    - PCI subsystem;

    - TI SCI PM domains driver;

    - PWM drivers;

    - Voltage and Current Regulator drivers;

    - Remote Processor subsystem;

    - S/390 drivers;

    - SCSI subsystem;

    - QCOM SoC drivers;

    - Samsung SoC drivers;

    - TCM subsystem;

    - Thermal drivers;

    - UFS subsystem;

    - Cadence USB3 driver;

    - ChipIdea USB driver;

    - USB Device Class drivers;

    - DesignWare USB3 driver;

    - USB Gadget drivers;

    - USB Type-C support driver;

    - USB Type-C Connector System Software Interface driver;

    - Backlight driver;

    - Framebuffer layer;

    - Xen hypervisor drivers;

    - BTRFS file system;

    - Ext4 file system;

    - F2FS file system;

    - File systems infrastructure;

    - JFS file system;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - NTFS3 file system;

    - Proc file system;

    - SMB network file system;

    - Kernel stack handling interfaces;

    - Bluetooth subsystem;

    - IPv6 networking;

    - Network traffic control;

    - SCTP protocol;

    - RDMA verbs API;

    - SoC audio core drivers;

    - BPF subsystem;

    - Kernel command line parsing driver;

    - Tracing infrastructure;

    - Watch queue notification mechanism;

    - Memory management;

    - 802.1Q VLAN protocol;

    - Asynchronous Transfer Mode (ATM) subsystem;

    - Networking core;

    - IPv4 networking;

    - MAC80211 subsystem;

    - Management Component Transport Protocol (MCTP);

    - Multipath TCP;

    - Netfilter;

    - Open vSwitch;

    - Phonet protocol;

    - SMC sockets;

    - Sun RPC protocol;

    - TIPC protocol;

    - TLS protocol;

    - SoC Audio for Freescale CPUs drivers;

    - Virtio sound driver;

    - CPU Power monitoring subsystem; (CVE-2025-37989, CVE-2025-22071, CVE-2025-37808, CVE-2025-37983,     CVE-2025-38001, CVE-2024-46816, CVE-2024-50125, CVE-2025-38575, CVE-2025-37766, CVE-2022-49168,     CVE-2025-22025, CVE-2025-22035, CVE-2025-37923, CVE-2024-49989, CVE-2025-23148, CVE-2024-53051,     CVE-2025-39728, CVE-2025-21956, CVE-2025-37741, CVE-2025-37970, CVE-2025-37798, CVE-2025-23157,     CVE-2025-38177, CVE-2022-49535, CVE-2025-22027, CVE-2025-37756, CVE-2025-38023, CVE-2025-22066,     CVE-2025-37780, CVE-2025-37995, CVE-2025-37739, CVE-2025-37932, CVE-2025-37982, CVE-2025-37812,     CVE-2025-23156, CVE-2025-38005, CVE-2025-21839, CVE-2025-37892, CVE-2025-22073, CVE-2024-35866,     CVE-2023-52757, CVE-2025-37785, CVE-2025-23150, CVE-2024-58093, CVE-2025-21992, CVE-2025-37905,     CVE-2025-37836, CVE-2025-21964, CVE-2025-23140, CVE-2025-22056, CVE-2025-37915, CVE-2025-22054,     CVE-2025-37859, CVE-2025-22050, CVE-2025-37811, CVE-2024-38540, CVE-2025-37794, CVE-2025-37839,     CVE-2022-21546, CVE-2025-22089, CVE-2025-22079, CVE-2024-56751, CVE-2025-37789, CVE-2025-37790,     CVE-2025-23159, CVE-2025-22097, CVE-2025-37883, CVE-2025-37829, CVE-2023-52572, CVE-2025-21962,     CVE-2025-37823, CVE-2024-53203, CVE-2025-38000, CVE-2025-38152, CVE-2025-37771, CVE-2025-39735,     CVE-2025-37992, CVE-2025-37937, CVE-2025-22081, CVE-2024-35943, CVE-2025-37803, CVE-2025-37940,     CVE-2025-22005, CVE-2025-22014, CVE-2025-37742, CVE-2022-49063, CVE-2025-37890, CVE-2025-37969,     CVE-2025-37788, CVE-2022-48893, CVE-2025-23161, CVE-2024-46753, CVE-2025-21853, CVE-2025-37817,     CVE-2022-49636, CVE-2025-37985, CVE-2025-37787, CVE-2025-37810, CVE-2025-22008, CVE-2025-37824,     CVE-2025-37765, CVE-2025-23145, CVE-2025-37830, CVE-2025-37913, CVE-2025-37881, CVE-2025-37967,     CVE-2025-37912, CVE-2024-42230, CVE-2024-46821, CVE-2024-56608, CVE-2025-37805, CVE-2025-37838,     CVE-2025-38637, CVE-2025-38024, CVE-2025-23138, CVE-2025-37949, CVE-2024-46751, CVE-2025-22007,     CVE-2025-37844, CVE-2024-46812, CVE-2025-37889, CVE-2023-53034, CVE-2025-37927, CVE-2025-37998,     CVE-2024-42322, CVE-2024-50280, CVE-2025-22086, CVE-2025-21963, CVE-2024-50272, CVE-2024-54458,     CVE-2024-36908, CVE-2025-22062, CVE-2025-37994, CVE-2025-22044, CVE-2025-22018, CVE-2025-22010,     CVE-2024-49960, CVE-2025-37768, CVE-2025-37911, CVE-2025-22060, CVE-2025-37781, CVE-2024-26686,     CVE-2024-50047, CVE-2025-37850, CVE-2024-46742, CVE-2025-37797, CVE-2025-37767, CVE-2025-23136,     CVE-2025-23158, CVE-2025-37792, CVE-2025-37749, CVE-2025-38009, CVE-2024-35867, CVE-2025-37885,     CVE-2025-37914, CVE-2024-46774, CVE-2025-38094, CVE-2025-23163, CVE-2024-38541, CVE-2025-37819,     CVE-2025-22020, CVE-2025-37857, CVE-2025-21975, CVE-2024-53144, CVE-2025-21991, CVE-2025-37867,     CVE-2025-37930, CVE-2025-37796, CVE-2025-21968, CVE-2025-22075, CVE-2025-37997, CVE-2025-22063,     CVE-2025-37840, CVE-2025-37909, CVE-2025-22045, CVE-2024-46787, CVE-2025-37738, CVE-2025-22055,     CVE-2025-37862, CVE-2024-56664, CVE-2025-21959, CVE-2025-22004, CVE-2024-50258, CVE-2025-23146,     CVE-2025-22021, CVE-2025-21994, CVE-2025-21957, CVE-2025-37758, CVE-2024-26739, CVE-2025-37858,     CVE-2025-37757, CVE-2025-23142, CVE-2025-23151, CVE-2025-21996, CVE-2025-21970, CVE-2025-37770,     CVE-2024-35790, CVE-2025-37773, CVE-2025-37990, CVE-2025-21941, CVE-2025-21999, CVE-2024-53128,     CVE-2025-37851, CVE-2025-23147, CVE-2025-37964, CVE-2025-37841, CVE-2025-37875, CVE-2024-53168,     CVE-2022-49728, CVE-2025-23144, CVE-2025-37991, CVE-2024-56551, CVE-2025-21981, CVE-2024-27402,     CVE-2025-37740, CVE-2024-36945)

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 20.04 LTS / 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7654-1 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:

    - PA-RISC architecture;

    - PowerPC architecture;

    - x86 architecture;

    - Block layer subsystem;

    - Cryptographic API;

    - Serial ATA and Parallel ATA drivers;

    - Bluetooth drivers;

    - Bus devices;

    - CPU frequency scaling framework;

    - Buffer Sharing and Synchronization framework;

    - DMA engine subsystem;

    - ARM SCMI message protocol;

    - GPU drivers;

    - HID subsystem;

    - HSI subsystem;

    - I2C subsystem;

    - I3C subsystem;

    - IIO subsystem;

    - InfiniBand drivers;

    - IOMMU subsystem;

    - IRQ chip drivers;

    - MCB driver;

    - Multiple devices driver;

    - Media drivers;

    - Multifunction device drivers;

    - PCI Endpoint Test driver;

    - MTD block device drivers;

    - Network drivers;

    - Device tree and open firmware driver;

    - PCI subsystem;

    - TI SCI PM domains driver;

    - PWM drivers;

    - S/390 drivers;

    - SCSI subsystem;

    - Samsung SoC drivers;

    - TCM subsystem;

    - UFS subsystem;

    - Cadence USB3 driver;

    - ChipIdea USB driver;

    - USB Device Class drivers;

    - DesignWare USB3 driver;

    - USB Gadget drivers;

    - USB Type-C support driver;

    - USB Type-C Connector System Software Interface driver;

    - Backlight driver;

    - Framebuffer layer;

    - Xen hypervisor drivers;

    - BTRFS file system;

    - Ext4 file system;

    - F2FS file system;

    - File systems infrastructure;

    - JFS file system;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - Proc file system;

    - SMB network file system;

    - Kernel stack handling interfaces;

    - Bluetooth subsystem;

    - Network traffic control;

    - SCTP protocol;

    - BPF subsystem;

    - Kernel command line parsing driver;

    - Tracing infrastructure;

    - Memory management;

    - 802.1Q VLAN protocol;

    - Networking core;

    - IPv6 networking;

    - MAC80211 subsystem;

    - Management Component Transport Protocol (MCTP);

    - Multipath TCP;

    - Netfilter;

    - Open vSwitch;

    - Phonet protocol;

    - TIPC protocol;

    - TLS protocol;

    - Virtio sound driver;

    - CPU Power monitoring subsystem; (CVE-2025-37790, CVE-2025-37871, CVE-2025-23147, CVE-2025-37803,     CVE-2025-37909, CVE-2025-37840, CVE-2025-37989, CVE-2025-37927, CVE-2024-50280, CVE-2024-50272,     CVE-2025-37850, CVE-2024-35866, CVE-2025-22027, CVE-2025-37812, CVE-2025-21853, CVE-2025-37810,     CVE-2025-37766, CVE-2024-54458, CVE-2022-21546, CVE-2025-37757, CVE-2025-37839, CVE-2024-38540,     CVE-2025-37990, CVE-2025-37794, CVE-2024-53203, CVE-2025-37964, CVE-2025-37819, CVE-2024-50125,     CVE-2024-53128, CVE-2022-48893, CVE-2023-52572, CVE-2024-42322, CVE-2024-35943, CVE-2025-37740,     CVE-2025-37739, CVE-2025-37838, CVE-2025-37995, CVE-2025-37789, CVE-2024-50258, CVE-2025-37970,     CVE-2025-38024, CVE-2025-23146, CVE-2025-37780, CVE-2022-49168, CVE-2025-23145, CVE-2024-46774,     CVE-2022-49063, CVE-2025-37742, CVE-2025-37940, CVE-2025-37781, CVE-2025-37796, CVE-2025-23159,     CVE-2025-23144, CVE-2025-37875, CVE-2024-49989, CVE-2025-37867, CVE-2025-37892, CVE-2025-37913,     CVE-2024-38541, CVE-2025-37983, CVE-2025-37923, CVE-2025-37836, CVE-2025-23151, CVE-2025-37765,     CVE-2025-37817, CVE-2025-37991, CVE-2025-38009, CVE-2025-37858, CVE-2025-37841, CVE-2025-37771,     CVE-2025-22062, CVE-2025-37912, CVE-2025-23156, CVE-2022-49535, CVE-2025-37829, CVE-2025-37851,     CVE-2024-46816, CVE-2025-37998, CVE-2025-38023, CVE-2024-56751, CVE-2025-37844, CVE-2025-37967,     CVE-2025-37930, CVE-2025-37994, CVE-2025-37805, CVE-2024-46742, CVE-2025-37883, CVE-2025-21839,     CVE-2025-37823, CVE-2025-23157, CVE-2025-37787, CVE-2025-38094, CVE-2024-26686, CVE-2024-26739,     CVE-2025-23142, CVE-2025-23163, CVE-2025-37915, CVE-2025-37885, CVE-2024-27402, CVE-2025-37749,     CVE-2025-37738, CVE-2025-37905, CVE-2025-37773, CVE-2025-23140, CVE-2025-37792, CVE-2025-37808,     CVE-2024-49960, CVE-2025-37857, CVE-2025-23158, CVE-2025-37824, CVE-2023-52757, CVE-2025-37767,     CVE-2025-37758, CVE-2025-37914, CVE-2025-23161, CVE-2025-37741, CVE-2024-35867, CVE-2025-37911,     CVE-2025-37859, CVE-2025-37830, CVE-2025-37982, CVE-2024-46751, CVE-2025-37985, CVE-2025-37756,     CVE-2025-37768, CVE-2025-37811, CVE-2025-37992, CVE-2025-37862, CVE-2025-38005, CVE-2024-36908,     CVE-2025-23150, CVE-2025-37949, CVE-2025-37788, CVE-2025-37881, CVE-2025-37770, CVE-2025-37797,     CVE-2025-23148, CVE-2024-35790, CVE-2025-37969)

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-1050 advisory.

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

    net/sched: act_mirred: don't override retval if we already lost the skb (CVE-2024-26739)

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

    mm/vmscan: fix a bug calling wakeup_kswapd() with a wrong zone index (CVE-2024-26783)

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

    ipv6: Fix potential uninit-value access in __ip6_make_skb() (CVE-2024-36903)

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

    blk-iocost: do not WARN if iocg was already offlined (CVE-2024-36908)

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

    ipv4: Fix uninit-value access in __ip_make_skb() (CVE-2024-36927)

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

    of: module: add buffer overflow check in of_modalias() (CVE-2024-38541)

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

    bpf, arm64: Fix trampoline for BPF_TRAMP_F_CALL_ORIG (CVE-2024-43840)

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

    btrfs: fix qgroup reserve leaks in cow_file_range (CVE-2024-46733)

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

    btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info() (CVE-2024-46751)

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

    bpf: Prevent tail call between progs attached to different hooks (CVE-2024-50063)

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

    bpf: avoid holding freeze_mutex during mmap operation (CVE-2025-21853)

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

    hwpoison, memory_hotplug: lock folio before unmap hwpoisoned folio (CVE-2025-21931)

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

    KVM: arm64: Unconditionally save+flush host FPSIMD/SVE/SME state (CVE-2025-22013)

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

    sctp: add mutual exclusion in proc_sctp_do_udp_port() (CVE-2025-22062)

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

    KVM: x86: Acquire SRCU in KVM_GET_MP_STATE to protect guest memory accesses (CVE-2025-23141)

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

    sctp: detect and prevent references to a freed transport in sendmsg (CVE-2025-23142)

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

    mptcp: fix NULL pointer in can_accept_new_subflow (CVE-2025-23145)

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

    i3c: Add NULL pointer check in i3c_master_queue_ibi() (CVE-2025-23147)

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

    ext4: fix off-by-one error in do_split (CVE-2025-23150)

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

    net: vlan: don't propagate flags on open (CVE-2025-23163)

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

    ext4: ignore xattrs past end (CVE-2025-37738)

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

    net_sched: sch_sfq: move the limit validation (CVE-2025-37752)

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

    net: tls: explicitly disallow disconnect (CVE-2025-37756)

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

    RDMA/cma: Fix workqueue crash in cma_netevent_work_handler (CVE-2025-37772)

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

    virtiofs: add filesystem context source name check (CVE-2025-37773)

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

    isofs: Prevent the use of too small fid (CVE-2025-37780)

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

    net: openvswitch: fix nested key length validation in the set() action (CVE-2025-37789)

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

    net_sched: hfsc: Fix a UAF vulnerability in class handling (CVE-2025-37797)

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

    codel: remove sch->q.qlen check before qdisc_tree_reduce_backlog() (CVE-2025-37798)

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

    crypto: null - Use spin lock instead of mutex (CVE-2025-37808)

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

    irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode() (CVE-2025-37819)

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

    xen-netfront: handle NULL returned by xdp_convert_buff_to_frame() (CVE-2025-37820)

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

    net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (CVE-2025-37823)

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

    PCI: Fix reference leak in pci_register_host_bridge() (CVE-2025-37836)

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

    jbd2: remove wrong sb->s_sequence check (CVE-2025-37839)

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

    cifs: avoid NULL pointer dereference in dbg call (CVE-2025-37844)

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

    KVM: arm64: Tear down vGIC on failed vCPU creation (CVE-2025-37849)

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

    scsi: st: Fix array overflow in st_setup() (CVE-2025-37857)

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

    page_pool: avoid infinite loop to schedule delayed worker (CVE-2025-37859)

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

    RDMA/core: Silence oversized kvmalloc() warning (CVE-2025-37867)

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

    nfsd: decrease sc_count directly if fail to queue dl_recall (CVE-2025-37871)

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

    igc: fix PTM cycle trigger logic (CVE-2025-37875)

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

    bpf: Fix deadlock between rcu_tasks_trace and event_mutex. (CVE-2025-37884)

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

    KVM: x86: Reset IRTE to host control if *new* route isn't postable (CVE-2025-37885)

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

    net_sched: qfq: Fix double list add in class with netem as child qdisc (CVE-2025-37913)

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

    net_sched: drr: Fix double list add in class with netem as child qdisc (CVE-2025-37915)

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

    tracing: Fix oob write in trace_seq_to_buffer() (CVE-2025-37923)

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

    iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid (CVE-2025-37927)

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

    dm-bufio: don't schedule in atomic context (CVE-2025-37928)

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

    ftrace: Add cond_resched() to ftrace_graph_set_hash() (CVE-2025-37940)

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

    arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs (CVE-2025-37948)

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

    xenbus: Use kref to track req lifetime (CVE-2025-37949)

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

    bpf: Scrub packet on bpf_redirect_peer (CVE-2025-37959)

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

    ipvs: fix uninit-value for saddr in do_output_route4 (CVE-2025-37961)

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

    arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users (CVE-2025-37963)

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

    x86/mm: Eliminate window where TLB flushes may be inadvertently skipped (CVE-2025-37964)

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

    net: phy: leds: fix memory leak (CVE-2025-37989)

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

    net_sched: Flush gso_skb list too during ->change() (CVE-2025-37992)

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

    netfilter: ipset: fix region locking in hash types (CVE-2025-37997)

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

    openvswitch: Fix unsafe attribute parsing in output_userspace() (CVE-2025-37998)

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

    net/tls: fix kernel panic when alloc_page failed (CVE-2025-38018)

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

    net/mlx5e: Disable MACsec offload for uplink representor profile (CVE-2025-38020)

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

    nfs: handle failure of nfs_get_lock_context in unlock path (CVE-2025-38023)

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

    dma-buf: insert memory barrier before updating num_fences (CVE-2025-38095)

Tenable has extracted the preceding description block directly from the tested product 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 version of kernel installed on the remote host is prior to 5.15.184-125.189. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-078 advisory.

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

    btrfs: don't BUG_ON() when 0 reference count at btrfs_lookup_extent_info() (CVE-2024-46751)

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

    sctp: add mutual exclusion in proc_sctp_do_udp_port() (CVE-2025-22062)

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

    xenbus: Use kref to track req lifetime (CVE-2025-37949)

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

    x86/mm: Eliminate window where TLB flushes may be inadvertently skipped (CVE-2025-37964)

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

    net_sched: Flush gso_skb list too during ->change() (CVE-2025-37992)

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

    module: ensure that kobject_put() is safe for module type kobjects (CVE-2025-37995)

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

    netfilter: ipset: fix region locking in hash types (CVE-2025-37997)

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

    openvswitch: Fix unsafe attribute parsing in output_userspace() (CVE-2025-37998)

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

    nfs: handle failure of nfs_get_lock_context in unlock path (CVE-2025-38023)

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

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

An update of the linux package has been released.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-994 advisory.

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

    btrfs: do proper folio cleanup when cow_file_range() failed (CVE-2024-57976)

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

    kernel: be more careful about dup_mmap() failures and uprobe registering (CVE-2025-21709)

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

    block: fix queue freeze vs limits lock order in sysfs store methods (CVE-2025-21807)

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

    block: mark GFP_NOIO around sysfs ->store() (CVE-2025-21817)

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

    iommu/vt-d: Avoid use of NULL after WARN_ON_ONCE (CVE-2025-21833)

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

    net: better track kernel sockets lifetime (CVE-2025-21884)

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

    bnxt_en: Mask the bd_cnt field in the TX BD properly (CVE-2025-22108)

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

    ext4: goto right label 'out_mmap_sem' in ext4_setattr() (CVE-2025-22120)

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

    net_sched: hfsc: Fix a UAF vulnerability in class handling (CVE-2025-37797)

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

    vmxnet3: Fix malformed packet sizing in vmxnet3_process_xdp (CVE-2025-37799)

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

    driver core: fix potential NULL pointer dereference in dev_uevent() (CVE-2025-37800)

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

    fs/ntfs3: Keep write operations atomic (CVE-2025-37806)

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

    crypto: null - Use spin lock instead of mutex (CVE-2025-37808)

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

    usb: typec: class: Fix NULL pointer access (CVE-2025-37809)

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

    usb: xhci: Fix invalid pointer dereference in Etron workaround (CVE-2025-37813)

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

    tty: Require CAP_SYS_ADMIN for all usages of TIOCL_SELMOUSEREPORT (CVE-2025-37814)

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

    irqchip/gic-v2m: Prevent use after free of gicv2m_get_fwnode() (CVE-2025-37819)

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

    xen-netfront: handle NULL returned by xdp_convert_buff_to_frame() (CVE-2025-37820)

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

    sched/eevdf: Fix se->slice being set to U64_MAX and resulting crash (CVE-2025-37821)

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

    net_sched: hfsc: Fix a potential UAF in hfsc_dequeue() too (CVE-2025-37823)

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

    btrfs: zoned: return EIO on RAID1 block group write pointer mismatch (CVE-2025-37827)

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

    netfs: Only create /proc/fs/netfs with CONFIG_PROC_FS (CVE-2025-37876)

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

    iommu: Clear iommu-dma ops on cleanup (CVE-2025-37877)

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

    perf/core: Fix WARN_ON(!ctx) in __free_event() for partial init (CVE-2025-37878)

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

    usb: xhci: Fix isochronous Ring Underrun/Overrun event handling (CVE-2025-37882)

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

    bpf: Fix deadlock between rcu_tasks_trace and event_mutex. (CVE-2025-37884)

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

    KVM: x86: Reset IRTE to host control if *new* route isn't postable (CVE-2025-37885)

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

    net/mlx5: Fix null-ptr-deref in mlx5_create_{inner_,}ttc_table() (CVE-2025-37888)

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

    iommu: Fix two issues in iommu_copy_struct_from_user() (CVE-2025-37900)

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

    net_sched: qfq: Fix double list add in class with netem as child qdisc (CVE-2025-37913)

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

    net_sched: ets: Fix double list add in class with netem as child qdisc (CVE-2025-37914)

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

    net_sched: drr: Fix double list add in class with netem as child qdisc (CVE-2025-37915)

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

    xsk: Fix race condition in AF_XDP generic RX path (CVE-2025-37920)

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

    tracing: Fix oob write in trace_seq_to_buffer() (CVE-2025-37923)

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

    iommu/amd: Fix potential buffer overflow in parse_ivrs_acpihid (CVE-2025-37927)

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

    dm-bufio: don't schedule in atomic context (CVE-2025-37928)

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

    arm64: errata: Add missing sentinels to Spectre-BHB MIDR arrays (CVE-2025-37929)

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

    btrfs: adjust subpage bit start based on sectorsize (CVE-2025-37931)

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

    arm64: bpf: Add BHB mitigation to the epilogue for cBPF programs (CVE-2025-37948)

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

    xenbus: Use kref to track req lifetime (CVE-2025-37949)

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

    KVM: SVM: Forcibly leave SMM mode on SHUTDOWN interception (CVE-2025-37957)

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

    mm/huge_memory: fix dereferencing invalid pmd migration entry (CVE-2025-37958)

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

    bpf: Scrub packet on bpf_redirect_peer (CVE-2025-37959)

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

    memblock: Accept allocated memory before use in memblock_double_array() (CVE-2025-37960)

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

    ipvs: fix uninit-value for saddr in do_output_route4 (CVE-2025-37961)

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

    arm64: bpf: Only mitigate cBPF programs loaded by unprivileged users (CVE-2025-37963)

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

    x86/mm: Eliminate window where TLB flushes may be inadvertently skipped (CVE-2025-37964)

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

    net: phy: leds: fix memory leak (CVE-2025-37989)

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

    netfilter: ipset: fix region locking in hash types (CVE-2025-37997)

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

    openvswitch: Fix unsafe attribute parsing in output_userspace() (CVE-2025-37998)

Tenable has extracted the preceding description block directly from the tested product 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 Debian 12 host has packages installed that are affected by multiple vulnerabilities as referenced in the dsa-5925 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-5925-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     May 24, 2025                          https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : linux     CVE ID         : CVE-2024-26618 CVE-2024-26783 CVE-2024-26807 CVE-2024-28956                      CVE-2024-35790 CVE-2024-36903 CVE-2024-36927 CVE-2024-43840                      CVE-2024-46751 CVE-2024-53203 CVE-2024-53209 CVE-2024-57945                      CVE-2025-21645 CVE-2025-21839 CVE-2025-21931 CVE-2025-22062                      CVE-2025-37819 CVE-2025-37890 CVE-2025-37897 CVE-2025-37901                      CVE-2025-37902 CVE-2025-37903 CVE-2025-37905 CVE-2025-37909                      CVE-2025-37911 CVE-2025-37912 CVE-2025-37913 CVE-2025-37914                      CVE-2025-37915 CVE-2025-37917 CVE-2025-37921 CVE-2025-37923                      CVE-2025-37924 CVE-2025-37927 CVE-2025-37928 CVE-2025-37929                      CVE-2025-37930 CVE-2025-37932 CVE-2025-37936 CVE-2025-37947                      CVE-2025-37948 CVE-2025-37949 CVE-2025-37951 CVE-2025-37953                      CVE-2025-37959 CVE-2025-37961 CVE-2025-37962 CVE-2025-37963                      CVE-2025-37964 CVE-2025-37967 CVE-2025-37969 CVE-2025-37970                      CVE-2025-37972 CVE-2025-37990 CVE-2025-37991

    Several vulnerabilities have been discovered in the Linux kernel that     may lead to a privilege escalation, denial of service or information     leaks.

    For CPUs affected to ITS (Indirect Target Selection), to fully mitigate     the vulnerability it is also necessary to update the intel-microcode     packages released in DSA 5924-1.

    For details on the Indirect Target Selection (ITS) vulnerability please     refer to https://www.vusec.net/projects/training-solo/ and     https://www.intel.com/content/www/us/en/developer/articles/technical/software-security-guidance/advisory-     guidance/indirect-target-selection.html .

    For the stable distribution (bookworm), these problems have been fixed in     version 6.1.140-1.

    We recommend that you upgrade your linux packages.

    For the detailed security status of linux please refer to its security     tracker page at:
    https://security-tracker.debian.org/tracker/linux

    Further information about Debian Security Advisories, how to apply     these updates to your system and frequently asked questions can be     found at: https://www.debian.org/security/

    Mailing list: debian-security-announce@lists.debian.org

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

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

ID	Name	Product	Family	Severity
243967	Ubuntu 22.04 LTS : Linux kernel (Raspberry Pi) vulnerabilities (USN-7686-1)	Nessus	Ubuntu Local Security Checks	high
242347	Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2025-20480)	Nessus	Oracle Linux Local Security Checks	medium
242345	Ubuntu 20.04 LTS : Linux kernel (Intel IoTG) vulnerabilities (USN-7655-1)	Nessus	Ubuntu Local Security Checks	high
242343	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-7654-1)	Nessus	Ubuntu Local Security Checks	high
241775	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-1050)	Nessus	Amazon Linux Local Security Checks	high
241727	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-078)	Nessus	Amazon Linux Local Security Checks	medium
240349	Photon OS 5.0: Linux PHSA-2025-5.0-0533	Nessus	PhotonOS Local Security Checks	high
238280	Amazon Linux 2023 : bpftool, kernel6.12, kernel6.12-modules-extra (ALAS2023-2025-994)	Nessus	Amazon Linux Local Security Checks	medium
237223	Debian dsa-5925 : affs-modules-6.1.0-33-4kc-malta-di - security update	Nessus	Debian Local Security Checks	medium

Detections

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CVE-2025-37964

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Tenable Plugins

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medium

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medium