In the Linux kernel, the following vulnerability has been resolved: net/handshake: hand off the pinned file reference to accept_doit handshake_req_next() removes the request from the per-net pending list and drops hn_lock before handshake_nl_accept_doit() reads req->hr_sk->sk_socket and dereferences sock->file (once in FD_PREPARE() and again in get_file()). In that window a consumer running tls_handshake_cancel() followed by sockfd_put() (svc_sock_free) or __fput_sync() (xs_reset_transport) releases sock->file. sock_release() then runs sock_orphan(), zeroing sk_socket, and frees the struct socket. The accept-side code either reads NULL through sk_socket or chases freed memory. The submit-side sock_hold() does not prevent this. sk_refcnt protects struct sock, but struct socket and sock->file are independently refcounted via the file descriptor the consumer owns. Pinning sk leaves sock and sock->file unprotected. Retarget the accept-side dereferences at req->hr_file, which was pinned at submit time, instead of req->hr_sk->sk_socket->file. Pinning on its own is not sufficient: a consumer that cancels between handshake_req_next() returning and accept_doit reaching FD_PREPARE() takes the !remove_pending() branch in handshake_req_cancel() and drops hr_file before the accept side takes its own reference. Hand off an additional file reference inside handshake_req_next(), under hn_lock, so the accept side operates on a reference that no concurrent handshake_req_cancel() can revoke. FD_PREPARE() consumes that handed-off reference, either by transferring it to the new fd in fd_publish() or by dropping it in the cleanup destructor on error; the explicit get_file() that previously balanced FD_PREPARE() is therefore redundant and goes away. Update handshake_req_cancel_test2 and _test3 to simulate the FD_PREPARE() consumption with an fput() so the kunit file-count assertions stay balanced.

The remote AlmaLinux 10 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:91565 advisory.

    * kernel: tcp: restrict SO_ATTACH_FILTER to priv users (CVE-2026-53236)
      * kernel: fuse: re-lock request before replacing page cache folio (CVE-2026-53388)
      * kernel: net: shaper: rework the VALID marking (again) (CVE-2026-64027)
      * kernel: net/handshake: hand off the pinned file reference to accept_doit (CVE-2026-63979)
      * kernel: net/handshake: Drain pending requests at net namespace exit (CVE-2026-63978)
      * kernel: af_unix: Fix UAF read of tail->len in unix_stream_data_wait() (CVE-2026-64109)
      * kernel: net/handshake: Take a long-lived file reference at submit (CVE-2026-64523)
      * kernel: net: gro: fix double aggregation of flush-marked skbs (CVE-2026-68136)
      * kernel: net/packet: avoid fanout hook re-registration after unregister (CVE-2026-68338)
      * kernel: scsi: target: core: Fix iSCSI ISID use-after-free in REGISTER AND MOVE (CVE-2026-72083)
      * kernel: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled (CVE-2026-74515)
      * kernel: net: smc: fix splice entry lifetime imbalance in smc_rx_splice (CVE-2026-74631)
      * kernel: usb: usbfs: fix use-after-free of usb_device in usbdev_release() (CVE-2026-80824)
      * kernel: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions     (CVE-2026-89638)
      * kernel: vfio/pci: clear vdev->msi_perm after freeing it on init failure (CVE-2026-89777)
      * kernel: md/raid5-ppl: fix use-after-free in ppl_do_flush() (CVE-2026-93262)


    Bug Fix(es) and Enhancement(s):

      * x86/microcode: Add platform mask to Intel microcode old list [AlmaLinux-10] [almalinux-10.2.z]     (JIRA:AlmaLinux-212778)
      * net: NULL pointer deref kernel panic in fib6_walk_continue under heavy VRF churn [almalinux-10.2.z]     (JIRA:AlmaLinux-245489)
      * backport fixes for lockdep issues reported with rt-debug [almalinux-10.2.z] (JIRA:AlmaLinux-259937)

Tenable has extracted the preceding description block directly from the AlmaLinux 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 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ELSA-2026-90365 advisory.

    - netfilter: flowtable: hold reference on ct until flow is released (CKI Backport Bot) [RHEL-280075]     {CVE-2026-98320}
    - vfio/pci: clear vdev->msi_perm after freeing it on init failure (Rodolfo Vick) [RHEL-270901]     {CVE-2026-89777}
    - md/raid5-ppl: fix use-after-free in ppl_do_flush() (CKI Backport Bot) [RHEL-278089] {CVE-2026-93262}
    - KEYS: encrypted: fix integer overflow of datablob_len (Bruno Meneguele) [RHEL-279504] {CVE-2026-98222}
    - KVM: s390: pci: Reject adapter interrupt forwarding if already enabled (CKI Backport Bot) [RHEL-277620]     {CVE-2026-74515}
    - smb: client: fix rlist race and missing initialization (Paulo Alcantara) [RHEL-257205] {CVE-2026-98174}
    - smb: client: cancel reconnect work in clean_demultiplex_info() (Paulo Alcantara) [RHEL-257205]     {CVE-2026-98175}
    - smb: client: fix cifsFileInfo reference leak in deferred close (Paulo Alcantara) [RHEL-257205]     {CVE-2026-97558}
    - smb: client: avoid leaking refcount when cifs_sb_tlink() fails (Paulo Alcantara) [RHEL-257205]     {CVE-2026-97556}
    - smb: client: avoid leaking refcount in cifs_queue_oplock_break() (Paulo Alcantara) [RHEL-257205]     {CVE-2026-97557}
    - smb: client: invalidate fscache for fallocate range operations (Paulo Alcantara) [RHEL-257205]     {CVE-2026-98124}
    - smb: client: fix stale page cache in insert/collapse range (Paulo Alcantara) [RHEL-257205]     {CVE-2026-98125}
    - smb/client: validate new EOF for zero range (Paulo Alcantara) [RHEL-257205] {CVE-2026-98126}
    - smb/client: validate new EOF for insert range (Paulo Alcantara) [RHEL-257205] {CVE-2026-98127}
    - cifs: fix loff_t underflow in cifs_remap_file_range() when len == 0 (Paulo Alcantara) [RHEL-257205]     {CVE-2026-89640}
    - cifs: call pagecache_isize_extended() in cifs_setsize() when extending (Paulo Alcantara) [RHEL-257205]     {CVE-2026-89642}
    - cifs: clear tcon after cifsFileInfo_put() in cifs_file_set_size() (Paulo Alcantara) [RHEL-257205]     {CVE-2026-89641}
    - cifs: use cifs_invalidate_cache() in cifs_do_truncate() for O_TRUNC (Paulo Alcantara) [RHEL-257205]     {CVE-2026-89639}
    - smb/client: flush dirty data before punching a hole (Paulo Alcantara) [RHEL-257205] {CVE-2026-93794}
    - smb/client: zero-initialize stack-allocated cifs_open_info_data (Paulo Alcantara) [RHEL-257205]     {CVE-2026-93801}
    - smb: client: fix races in cifsd thread creation (Paulo Alcantara) [RHEL-257205] {CVE-2026-93829}
    - smb: client: fix in-place encryption corruption in SMB2_write() (Paulo Alcantara) [RHEL-257205]     {CVE-2026-43362}
    - udp: Deal with race between UDP socket address change and rehash (Jamie Bainbridge) [RHEL-257635]     {CVE-2024-57974}
    - smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions (CKI Backport     Bot) [RHEL-271257] {CVE-2026-89638}
    - net/handshake: Drain pending requests at net namespace exit (Xin Long) [RHEL-232134] {CVE-2026-63978}
    - net/handshake: hand off the pinned file reference to accept_doit (Xin Long) [RHEL-230363]     {CVE-2026-63979}
    - net/handshake: Take a long-lived file reference at submit (Xin Long) [RHEL-234159] {CVE-2026-64523}
    - fuse: re-lock request before replacing page cache folio (Miklos Szeredi) [RHEL-226093] {CVE-2026-53388}
    - fuse: release pipe buf after last use (Miklos Szeredi) [RHEL-226093] {CVE-2026-53388}
    - fuse: fix page stealing (Miklos Szeredi) [RHEL-226093] {CVE-2026-53388}
    - ipvs: reload ip header after head reallocation (Phil Sutter) [RHEL-263800] {CVE-2026-68476}
    - selinux: avoid sk_socket dereference in selinux_sctp_bind_connect() (CKI Backport Bot) [RHEL-243225]     {CVE-2026-72242}
    - usb: usbfs: fix use-after-free of usb_device in usbdev_release() (CKI Backport Bot) [RHEL-258557]     {CVE-2026-80824}

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 AlmaLinux 9 host has packages installed that are affected by multiple vulnerabilities as referenced in the ALSA-2026:90365 advisory.

    * kernel: udp: Deal with race between UDP socket address change and rehash (CVE-2024-57974)
      * kernel: fuse: re-lock request before replacing page cache folio (CVE-2026-53388)
      * kernel: net/handshake: hand off the pinned file reference to accept_doit (CVE-2026-63979)
      * kernel: net/handshake: Drain pending requests at net namespace exit (CVE-2026-63978)
      * kernel: fuse: re-lock request before returning from fuse_ref_folio() (CVE-2026-64266)
      * kernel: net/handshake: Take a long-lived file reference at submit (CVE-2026-64523)
      * kernel: ipvs: reload ip header after head reallocation (CVE-2026-68476)
      * kernel: selinux: avoid sk_socket dereference in selinux_sctp_bind_connect() (CVE-2026-72242)
      * kernel: KVM: s390: pci: Reject adapter interrupt forwarding if already enabled (CVE-2026-74515)
      * kernel: usb: usbfs: fix use-after-free of usb_device in usbdev_release() (CVE-2026-80824)
      * kernel: smb: client: clear setuid/setgid bit on write with cifsacl/modefromsid/posix extensions     (CVE-2026-89638)
      * kernel: vfio/pci: clear vdev->msi_perm after freeing it on init failure (CVE-2026-89777)
      * kernel: md/raid5-ppl: fix use-after-free in ppl_do_flush() (CVE-2026-93262)
      * kernel: KEYS: encrypted: fix integer overflow of datablob_len (CVE-2026-98222)
      * kernel: netfilter: flowtable: hold reference on ct until flow is released (CVE-2026-98320)


    Bug Fix(es) and Enhancement(s):

      * kernel panic at __crypto_xor+0x2 after a number of out-of-bounds read and use-after-free read     (JIRA:AlmaLinux-257205)

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

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

There are packages installed that are affected by a vulnerability referenced in the following CVE:

  - In the Linux kernel, the following vulnerability has been resolved: net/handshake: hand off the pinned
    file reference to accept_doit handshake_req_next() removes the request from the per-net pending list and
    drops hn_lock before handshake_nl_accept_doit() reads req->hr_sk->sk_socket and dereferences sock->file
    (once in FD_PREPARE() and again in get_file()). In that window a consumer running tls_handshake_cancel()
    followed by sockfd_put() (svc_sock_free) or __fput_sync() (xs_reset_transport) releases sock->file.
    sock_release() then runs sock_orphan(), zeroing sk_socket, and frees the struct socket. The accept-side
    code either reads NULL through sk_socket or chases freed memory. The submit-side sock_hold() does not
    prevent this. sk_refcnt protects struct sock, but struct socket and sock->file are independently
    refcounted via the file descriptor the consumer owns. Pinning sk leaves sock and sock->file unprotected.
    Retarget the accept-side dereferences at req->hr_file, which was pinned at submit time, instead of
    req->hr_sk->sk_socket->file. Pinning on its own is not sufficient: a consumer that cancels between
    handshake_req_next() returning and accept_doit reaching FD_PREPARE() takes the !remove_pending() branch in
    handshake_req_cancel() and drops hr_file before the accept side takes its own reference. Hand off an
    additional file reference inside handshake_req_next(), under hn_lock, so the accept side operates on a
    reference that no concurrent handshake_req_cancel() can revoke. FD_PREPARE() consumes that handed-off
    reference, either by transferring it to the new fd in fd_publish() or by dropping it in the cleanup
    destructor on error; the explicit get_file() that previously balanced FD_PREPARE() is therefore redundant
    and goes away. Update handshake_req_cancel_test2 and _test3 to simulate the FD_PREPARE() consumption with
    an fput() so the kunit file-count assertions stay balanced. (CVE-2026-63979)

The remote Ubuntu 24.04 LTS / Pro Realtime 24.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-8781-1 advisory.

    It was discovered that some Arm processors could complete a broadcast translation lookaside buffer (TLB)     invalidation before memory writes made through the invalidated translation were globally observed. A local     attacker could possibly use this to write to memory after permission to do so had been revoked, bypassing     memory protections or escalating privileges. (CVE-2025-10263)

    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;

    - User-space API (UAPI);

    - Kernel build system;

    - ARM32 architecture;

    - PowerPC architecture;

    - RISC-V architecture;

    - S390 architecture;

    - User-Mode Linux (UML);

    - x86 architecture;

    - Cryptographic API;

    - Intel NPU Driver;

    - Compute Acceleration Framework;

    - ACPI drivers;

    - Drivers core;

    - DRBD Distributed Replicated Block Device drivers;

    - Rados block device (RBD) driver;

    - Ublk userspace block driver;

    - Compressed RAM block device driver;

    - Bluetooth drivers;

    - Hardware crypto device drivers;

    - CXL (Compute Express Link) drivers;

    - Arm Firmware Framework for ARMv8-A(FFA);

    - EFI core;

    - FPGA Framework;

    - GPU drivers;

    - HID subsystem;

    - Hardware monitoring drivers;

    - I2C subsystem;

    - I3C subsystem;

    - InfiniBand drivers;

    - Input Device core drivers;

    - Input Device (Mouse) drivers;

    - IOMMU subsystem;

    - Multiple devices driver;

    - Media drivers;

    - Fastrpc Driver;

    - Network drivers;

    - Mellanox network drivers;

    - Microsoft Azure Network Adapter (MANA) driver;

    - MediaTek network drivers;

    - NVME drivers;

    - Operating Performance Points (OPP) driver;

    - PCI subsystem;

    - PTP clock framework;

    - RPMSG subsystem;

    - SCSI subsystem;

    - SoundWire subsystem;

    - SPI subsystem;

    - Greybus lights staging drivers;

    - Media staging drivers;

    - NVIDIA Tegra embedded controller (NVEC) staging driver;

    - Realtek RTL8723BS SDIO drivers;

    - TCM subsystem;

    - Trusted Execution Environment drivers;

    - Thunderbolt and USB4 drivers;

    - TTY drivers;

    - USB Gadget drivers;

    - USB Dual Role (OTG-ready) Controller drivers;

    - USB Serial drivers;

    - vDPA drivers;

    - VFIO drivers;

    - Virtio Host (VHOST) subsystem;

    - Virtio drivers;

    - Xen hypervisor drivers;

    - 9P distributed file system;

    - AFS file system;

    - File systems infrastructure;

    - BTRFS file system;

    - Ceph distributed file system;

    - exFAT file system;

    - F2FS file system;

    - GFS2 file system;

    - HFS file system;

    - HFS+ file system;

    - JFS file system;

    - Network file systems library;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - NTFS3 file system;

    - OCFS2 file system;

    - OrangeFS file system;

    - SMB network file system;

    - BPF subsystem;

    - File system encryption (fscrypt);

    - Software nodes and device properties;

    - IPv4 networking;

    - KVM subsystem;

    - Mellanox drivers;

    - Memory management;

    - Networking core;

    - Netfilter;

    - Socket messages infrastructure;

    - MediaTek SoC drivers;

    - Sun RPC protocol;

    - Network traffic control;

    - IPv6 networking;

    - Amateur Radio drivers;

    - Bluetooth subsystem;

    - IP tunnels definitions;

    - KCM (Kernel Connection Multiplexor) sockets driver;

    - MultiProtocol Label Switching driver;

    - TCP network protocol;

    - XFRM subsystem;

    - Tracing infrastructure;

    - io_uring subsystem;

    - Control group (cgroup);

    - Perf events;

    - IRQ subsystem;

    - Locking primitives;

    - KProbes tracing;

    - 9P file system network protocol;

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

    - Ethernet bridge;

    - CAN network layer;

    - Ceph Core library;

    - Handshake API;

    - HSR network protocol;

    - IFE protocol;

    - L2TP protocol;

    - MAC80211 subsystem;

    - IEEE 802.15.4 subsystem;

    - Multipath TCP;

    - NFC subsystem;

    - Open vSwitch;

    - Phonet protocol;

    - RDS protocol;

    - RxRPC session sockets;

    - SCTP protocol;

    - SMC sockets;

    - TIPC protocol;

    - TLS protocol;

    - Unix domain sockets;

    - VMware vSockets driver;

    - Wireless networking;

    - X.25 network layer;

    - eXpress Data Path;

    - Rust bindings mechanism;

    - AppArmor security module;

    - Key management;

    - Linux Security Modules (LSM) Framework;

    - SELinux security module;

    - ALSA framework;

    - AudioScience HPI driver;

    - Intel ASoC drivers;

    - USB sound devices; (CVE-2024-14040, CVE-2024-35948, CVE-2024-41008, CVE-2024-43872, CVE-2024-44932,     CVE-2024-44964, CVE-2024-49932, CVE-2024-49940, CVE-2024-50106, CVE-2024-50217, CVE-2024-52560,     CVE-2024-53098, CVE-2024-56552, CVE-2024-56591, CVE-2024-57857, CVE-2024-58089, CVE-2024-58094,     CVE-2024-58098, CVE-2024-58100, CVE-2024-58241, CVE-2025-21687, CVE-2025-21693, CVE-2025-21984,     CVE-2025-21985, CVE-2025-22104, CVE-2025-22108, CVE-2025-22109, CVE-2025-23132, CVE-2025-37776,     CVE-2025-37876, CVE-2025-37906, CVE-2025-38064, CVE-2025-38069, CVE-2025-38187, CVE-2025-38204,     CVE-2025-38206, CVE-2025-38242, CVE-2025-38498, CVE-2025-38563, CVE-2025-38565, CVE-2025-38636,     CVE-2025-38717, CVE-2025-39677, CVE-2025-39789, CVE-2025-39859, CVE-2025-39862, CVE-2025-39896,     CVE-2025-39933, CVE-2025-39958, CVE-2025-39990, CVE-2025-40025, CVE-2025-40040, CVE-2025-40054,     CVE-2025-40064, CVE-2025-40074, CVE-2025-40075, CVE-2025-40139, CVE-2025-40158, CVE-2025-40168,     CVE-2025-40170, CVE-2025-40203, CVE-2025-40274, CVE-2025-40344, CVE-2025-40354, CVE-2025-68174,     CVE-2025-68304, CVE-2025-68360, CVE-2025-68745, CVE-2025-68822, CVE-2025-71073, CVE-2025-71074,     CVE-2025-71202, CVE-2025-71289, CVE-2026-23208, CVE-2026-23239, CVE-2026-23240, CVE-2026-23327,     CVE-2026-23393, CVE-2026-23469, CVE-2026-31420, CVE-2026-31479, CVE-2026-31486, CVE-2026-31493,     CVE-2026-31560, CVE-2026-31568, CVE-2026-31630, CVE-2026-31663, CVE-2026-31771, CVE-2026-43009,     CVE-2026-43029, CVE-2026-43042, CVE-2026-43048, CVE-2026-43101, CVE-2026-43116, CVE-2026-43126,     CVE-2026-43172, CVE-2026-43213, CVE-2026-43263, CVE-2026-43303, CVE-2026-43352, CVE-2026-43353,     CVE-2026-43464, CVE-2026-45850, CVE-2026-45894, CVE-2026-45932, CVE-2026-45944, CVE-2026-46054,     CVE-2026-46130, CVE-2026-46158, CVE-2026-46170, CVE-2026-46175, CVE-2026-46181, CVE-2026-46203,     CVE-2026-46275, CVE-2026-46315, CVE-2026-46320, CVE-2026-46324, CVE-2026-46330, CVE-2026-52908,     CVE-2026-52909, CVE-2026-52910, CVE-2026-52912, CVE-2026-52915, CVE-2026-52916, CVE-2026-52918,     CVE-2026-52919, CVE-2026-52921, CVE-2026-52922, CVE-2026-52926, CVE-2026-52934, CVE-2026-52941,     CVE-2026-52956, CVE-2026-52988, CVE-2026-52991, CVE-2026-53000, CVE-2026-53005, CVE-2026-53009,     CVE-2026-53024, CVE-2026-53025, CVE-2026-53053, CVE-2026-53070, CVE-2026-53078, CVE-2026-53089,     CVE-2026-53090, CVE-2026-53091, CVE-2026-53109, CVE-2026-53118, CVE-2026-53120, CVE-2026-53129,     CVE-2026-53131, CVE-2026-53132, CVE-2026-53133, CVE-2026-53148, CVE-2026-53159, CVE-2026-53182,     CVE-2026-53183, CVE-2026-53185, CVE-2026-53186, CVE-2026-53196, CVE-2026-53198, CVE-2026-53216,     CVE-2026-53217, CVE-2026-53221, CVE-2026-53230, CVE-2026-53232, CVE-2026-53239, CVE-2026-53250,     CVE-2026-53254, CVE-2026-53256, CVE-2026-53262, CVE-2026-53264, CVE-2026-53266, CVE-2026-53269,     CVE-2026-53270, CVE-2026-53273, CVE-2026-53275, CVE-2026-53281, CVE-2026-53284, CVE-2026-53354,     CVE-2026-53355, CVE-2026-53357, CVE-2026-53358, CVE-2026-53361, CVE-2026-53368, CVE-2026-53384,     CVE-2026-53398, CVE-2026-53399, CVE-2026-63795, CVE-2026-63796, CVE-2026-63797, CVE-2026-63800,     CVE-2026-63801, CVE-2026-63804, CVE-2026-63807, CVE-2026-63808, CVE-2026-63815, CVE-2026-63818,     CVE-2026-63825, CVE-2026-63828, CVE-2026-63829, CVE-2026-63830, CVE-2026-63831, CVE-2026-63853,     CVE-2026-63858, CVE-2026-63886, CVE-2026-63887, CVE-2026-63888, CVE-2026-63893, CVE-2026-63906,     CVE-2026-63912, CVE-2026-63914, CVE-2026-63915, CVE-2026-63916, CVE-2026-63917, CVE-2026-63919,     CVE-2026-63921, CVE-2026-63922, CVE-2026-63924, CVE-2026-63926, CVE-2026-63940, CVE-2026-63944,     CVE-2026-63945, CVE-2026-63946, CVE-2026-63947, CVE-2026-63948, CVE-2026-63952, CVE-2026-63974,     CVE-2026-63975, CVE-2026-63976, CVE-2026-63978, CVE-2026-63979, CVE-2026-63980, CVE-2026-63984,     CVE-2026-63992, CVE-2026-63993, CVE-2026-63994, CVE-2026-64000, CVE-2026-64007, CVE-2026-64010,     CVE-2026-64011, CVE-2026-64015, CVE-2026-64018, CVE-2026-64025, CVE-2026-64029, CVE-2026-64032,     CVE-2026-64033, CVE-2026-64034, CVE-2026-64039, CVE-2026-64046, CVE-2026-64047, CVE-2026-64048,     CVE-2026-64051, CVE-2026-64055, CVE-2026-64056, CVE-2026-64064, CVE-2026-64073, CVE-2026-64076,     CVE-2026-64077, CVE-2026-64082, CVE-2026-64083, CVE-2026-64084, CVE-2026-64085, CVE-2026-64086,     CVE-2026-64087, CVE-2026-64088, CVE-2026-64089, CVE-2026-64091, CVE-2026-64092, CVE-2026-64093,     CVE-2026-64096, CVE-2026-64097, CVE-2026-64098, CVE-2026-64099, CVE-2026-64102, CVE-2026-64103,     CVE-2026-64106, CVE-2026-64108, CVE-2026-64109, CVE-2026-64111, CVE-2026-64112, CVE-2026-64113,     CVE-2026-64114, CVE-2026-64115, CVE-2026-64116, CVE-2026-64117, CVE-2026-64118, CVE-2026-64121,     CVE-2026-64125, CVE-2026-64126, CVE-2026-64127, CVE-2026-64128, CVE-2026-64133, CVE-2026-64134,     CVE-2026-64135, CVE-2026-64136, CVE-2026-64137, CVE-2026-64138, CVE-2026-64144, CVE-2026-64147,     CVE-2026-64148, CVE-2026-64153, CVE-2026-64155, CVE-2026-64160, CVE-2026-64163, CVE-2026-64165,     CVE-2026-64166, CVE-2026-64168, CVE-2026-64170, CVE-2026-64173, CVE-2026-64174, CVE-2026-64177,     CVE-2026-64178, CVE-2026-64179, CVE-2026-64180, CVE-2026-64182, CVE-2026-64183, CVE-2026-64184,     CVE-2026-64185, CVE-2026-64191, CVE-2026-64206, CVE-2026-64214, CVE-2026-64217, CVE-2026-64218,     CVE-2026-64219, CVE-2026-64220, CVE-2026-64221, CVE-2026-64225, CVE-2026-64231, CVE-2026-64237,     CVE-2026-64247, CVE-2026-64249, CVE-2026-64268, CVE-2026-64269, CVE-2026-64280, CVE-2026-64303,     CVE-2026-64313, CVE-2026-64315, CVE-2026-64319, CVE-2026-64320, CVE-2026-64355, CVE-2026-64361,     CVE-2026-64364, CVE-2026-64382, CVE-2026-64383, CVE-2026-64384, CVE-2026-64385, CVE-2026-64386,     CVE-2026-64387, CVE-2026-64390, CVE-2026-64391, CVE-2026-64392, CVE-2026-64393, CVE-2026-64394,     CVE-2026-64396, CVE-2026-64397, CVE-2026-64399, CVE-2026-64400, CVE-2026-64408, CVE-2026-64438,     CVE-2026-64441, CVE-2026-64445, CVE-2026-64450, CVE-2026-64475, CVE-2026-64510, CVE-2026-64518,     CVE-2026-64523, CVE-2026-64529, CVE-2026-64530, CVE-2026-64534, CVE-2026-64535, CVE-2026-64541,     CVE-2026-64548, CVE-2026-64551, CVE-2026-64552, CVE-2026-64554, CVE-2026-64555, CVE-2026-64557,     CVE-2026-64561, CVE-2026-64562, CVE-2026-64564, CVE-2026-64586, CVE-2026-64597, CVE-2026-64598,     CVE-2026-68082, CVE-2026-68083, CVE-2026-68117, CVE-2026-68123, CVE-2026-68124, CVE-2026-68127,     CVE-2026-68136, CVE-2026-68137, CVE-2026-68138, CVE-2026-68144, CVE-2026-68147, CVE-2026-68152,     CVE-2026-68154, CVE-2026-68156, CVE-2026-68158, CVE-2026-68159, CVE-2026-68160, CVE-2026-68161,     CVE-2026-68162, CVE-2026-68198, CVE-2026-68206, CVE-2026-68209, CVE-2026-68210, CVE-2026-68213,     CVE-2026-68228, CVE-2026-68229, CVE-2026-68300, CVE-2026-68302, CVE-2026-68343, CVE-2026-68381,     CVE-2026-68388, CVE-2026-68426, CVE-2026-68431, CVE-2026-68457, CVE-2026-68461, CVE-2026-68470,     CVE-2026-68476, CVE-2026-68477, CVE-2026-72014, CVE-2026-72020, CVE-2026-72033, CVE-2026-72041,     CVE-2026-72065, CVE-2026-72069, CVE-2026-72071, CVE-2026-72083, CVE-2026-72084, CVE-2026-72085,     CVE-2026-72098, CVE-2026-72111, CVE-2026-72124, CVE-2026-72125, CVE-2026-72126, CVE-2026-72129,     CVE-2026-72130, CVE-2026-72191, CVE-2026-72192, CVE-2026-72194, CVE-2026-72200, CVE-2026-72217,     CVE-2026-72221, CVE-2026-72222, CVE-2026-72226, CVE-2026-72234, CVE-2026-72251, CVE-2026-72255,     CVE-2026-72288, CVE-2026-72289, CVE-2026-72296, CVE-2026-72299, CVE-2026-72317, CVE-2026-72318,     CVE-2026-72319, CVE-2026-72320, CVE-2026-72322, CVE-2026-72323, CVE-2026-72329, CVE-2026-72339,     CVE-2026-72348, CVE-2026-72351, CVE-2026-72380, CVE-2026-72383, CVE-2026-72398, CVE-2026-72399,     CVE-2026-72421, CVE-2026-72422, CVE-2026-72434, CVE-2026-72436, CVE-2026-72451, CVE-2026-72454,     CVE-2026-72466, CVE-2026-72472, CVE-2026-72473, CVE-2026-72487, CVE-2026-72488, CVE-2026-72489,     CVE-2026-72491, CVE-2026-72494, CVE-2026-72495, CVE-2026-72496, CVE-2026-72499, CVE-2026-74255,     CVE-2026-74264, CVE-2026-74267, CVE-2026-74268, CVE-2026-74269, CVE-2026-74279, CVE-2026-74280,     CVE-2026-74287, CVE-2026-74302, CVE-2026-74305, CVE-2026-74310, CVE-2026-74345, CVE-2026-74350,     CVE-2026-74376, CVE-2026-74384, CVE-2026-74394, CVE-2026-74398, CVE-2026-74401, CVE-2026-74405,     CVE-2026-74406, CVE-2026-74407, CVE-2026-74408, CVE-2026-74410, CVE-2026-74411, CVE-2026-74417,     CVE-2026-74427, CVE-2026-74436, CVE-2026-74439, CVE-2026-74440, CVE-2026-74473, CVE-2026-74474,     CVE-2026-74475, CVE-2026-74476, CVE-2026-74478, CVE-2026-74480, CVE-2026-74493, CVE-2026-74495,     CVE-2026-74521, CVE-2026-74538, CVE-2026-74541, CVE-2026-74556, CVE-2026-74569)

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.

An update of the linux package has been released.

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

  - net/handshake: hand off the pinned file reference to accept_doit handshake_req_next() removes the request     from the per-net pending list and drops hn_lock before handshake_nl_accept_doit() reads     req->hr_sk->sk_socket and dereferences sock->file (once in FD_PREPARE() and again in get_file()). In that     window a consumer running tls_handshake_cancel() followed by sockfd_put() (svc_sock_free) or __fput_sync()     (xs_reset_transport) releases sock->file. sock_release() then runs sock_orphan(), zeroing sk_socket, and     frees the struct socket. The accept-side code either reads NULL through sk_socket or chases freed memory.
    The submit-side sock_hold() does not prevent this. sk_refcnt protects struct sock, but struct socket and     sock->file are independently refcounted via the file descriptor the consumer owns. Pinning sk leaves sock     and sock->file unprotected. Retarget the accept-side dereferences at req->hr_file, which was pinned at     submit time, instead of req->hr_sk->sk_socket->file. Pinning on its own is not sufficient: a consumer that     cancels between handshake_req_next() returning and accept_doit reaching FD_PREPARE() takes the     !remove_pending() branch in handshake_req_cancel() and drops hr_file before the accept side takes its own     reference. Hand off an additional file reference inside handshake_req_next(), under hn_lock, so the accept     side operates on a reference that no concurrent handshake_req_cancel() can revoke. FD_PREPARE() consumes     that handed-off reference, either by transferring it to the new fd in fd_publish() or by dropping it in     the cleanup destructor on error; the explicit get_file() that previously balanced FD_PREPARE() is     therefore redundant and goes away. Update handshake_req_cancel_test2 and _test3 to simulate the     FD_PREPARE() consumption with an fput() so the kunit file-count assertions stay balanced. (CVE-2026-63979)

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

ID	Name	Product	Family	Type	Severity
373226	AlmaLinux 10 : kernel (ALSA-2026:91565)	Nessus	Alma Linux Local Security Checks	Local	medium
372925	Oracle Linux 9 : kernel (ELSA-2026-90365)	Nessus	Oracle Linux Local Security Checks	Local	medium
372449	AlmaLinux 9 : kernel (ALSA-2026:90365)	Nessus	Alma Linux Local Security Checks	Local	medium
365279	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-3196)	Nessus	Amazon Linux Local Security Checks	Local	medium
470818	Google: sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_18: security update to 20085.0.0	Tenable Cloud Security	Google COS Security Checks	Local	critical
470818	Google: sys-kernel/cchost-kernel-6_18, sys-kernel/csql-kernel-6_18, sys-kernel/lakitu-kernel-6_18, sys-kernel/lakitu-nc-kernel-6_18: security update to 20085.0.0	Tenable Self-Hosted Container Security	Google COS Security Checks	Local	critical
348386	Ubuntu 24.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (NVIDIA Tegra) vulnerabilities (USN-8781-1)	Nessus	Ubuntu Local Security Checks	Local	high
343532	Ubuntu 24.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (GCP) vulnerabilities (USN-8728-1)	Nessus	Ubuntu Local Security Checks	Local	high
341888	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-2106)	Nessus	Amazon Linux Local Security Checks	Local	high
340681	Ubuntu 24.04 LTS / 26.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8663-1)	Nessus	Ubuntu Local Security Checks	Local	high
340045	Ubuntu 26.04 LTS : Linux kernel (NVIDIA BaseOS) vulnerabilities (USN-8664-1)	Nessus	Ubuntu Local Security Checks	Local	high
339767	Photon OS 5.0: Linux PHSA-2026-5.0-92-0973	Nessus	PhotonOS Local Security Checks	Local	critical
339766	Photon OS 5.0: Linux PHSA-2026-5.0-91-0973	Nessus	PhotonOS Local Security Checks	Local	critical
327939	Linux Distros Unpatched Vulnerability : CVE-2026-63979	Nessus	Misc.	Local	critical

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CVE-2026-63979

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