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

  - ksmbd: fix use-after-free and NULL deref in smb_grant_oplock() smb_grant_oplock() has two issues in the     oplock publication sequence: 1) opinfo is linked into ci->m_op_list (via opinfo_add) before     add_lease_global_list() is called. If add_lease_global_list() fails (kmalloc returns NULL), the error path     frees the opinfo via __free_opinfo() while it is still linked in ci->m_op_list. Concurrent m_op_list     readers (opinfo_get_list, or direct iteration in smb_break_all_levII_oplock) dereference the freed node.
    2) opinfo->o_fp is assigned after add_lease_global_list() publishes the opinfo on the global lease list. A     concurrent find_same_lease_key() can walk the lease list and dereference opinfo->o_fp->f_ci while o_fp is     still NULL. Fix by restructuring the publication sequence to eliminate post-publish failure: - Set     opinfo->o_fp before any list publication (fixes NULL deref). - Preallocate lease_table via     alloc_lease_table() before opinfo_add() so add_lease_global_list() becomes infallible after publication. -     Keep the original m_op_list publication order (opinfo_add before lease list) so concurrent opens via     same_client_has_lease() and opinfo_get_list() still see the in-flight grant. - Use opinfo_put() instead of
    __free_opinfo() on err_out so that the RCU-deferred free path is used. This also requires splitting     add_lease_global_list() to take a preallocated lease_table and changing its return type from int to void,     since it can no longer fail. (CVE-2026-31444)

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

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-8669-1 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:

    - Foo-over-UDP (FOU);

    - ARM64 architecture;

    - x86 architecture;

    - Block layer subsystem;

    - Drivers core;

    - Null block device driver;

    - Bluetooth drivers;

    - Counter interface drivers;

    - DMA engine subsystem;

    - DPLL subsystem;

    - GPIO subsystem;

    - GPU drivers;

    - I2C subsystem;

    - IIO ADC drivers;

    - IIO subsystem;

    - InfiniBand drivers;

    - On-Chip Interconnect management framework;

    - IOMMU subsystem;

    - IRQ chip drivers;

    - Modular ISDN driver;

    - LED subsystem;

    - Multiple devices driver;

    - Media drivers;

    - UACCE accelerator framework;

    - MMC subsystem;

    - Ethernet bonding driver;

    - Network drivers;

    - Mellanox network drivers;

    - Texas Instruments network drivers;

    - NVME drivers;

    - Device tree and open firmware driver;

    - PHY drivers;

    - x86 platform drivers;

    - i.MX PM domains;

    - SCSI subsystem;

    - SLIMbus drivers;

    - SPI subsystem;

    - TTY drivers;

    - USB Host Controller drivers;

    - W1 Dallas's 1-wire bus driver;

    - Xen hypervisor drivers;

    - BTRFS file system;

    - EFI Variable file system;

    - File systems infrastructure;

    - Ext4 file system;

    - FUSE (File system in Userspace);

    - Network file systems library;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - SMB network file system;

    - Memory Management;

    - Memory management;

    - Scheduler infrastructure;

    - Tracing infrastructure;

    - IPv4 networking;

    - Netfilter;

    - NFC subsystem;

    - Network traffic control;

    - TCP network protocol;

    - io_uring subsystem;

    - Perf events;

    - Locking primitives;

    - Hibernation control;

    - Timer subsystem;

    - BPF subsystem;

    - Floating proportions library;

    - Bluetooth subsystem;

    - CAN network layer;

    - Ceph Core library;

    - Networking core;

    - IPv6 networking;

    - L2TP protocol;

    - MAC80211 subsystem;

    - Multipath TCP;

    - NET/ROM layer;

    - RxRPC session sockets;

    - SCTP protocol;

    - SMC sockets;

    - VMware vSockets driver;

    - Wireless networking;

    - ALSA AC97 driver;

    - Creative Sound Blaster X-Fi driver;

    - Texas InstrumentS Audio (ASoC/HDA) drivers;

    - USB sound devices; (CVE-2025-71158, CVE-2025-71160, CVE-2025-71161, 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-2025-71187, 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-2025-71201, CVE-2026-22976, CVE-2026-22977, CVE-2026-22978,     CVE-2026-22979, CVE-2026-22980, CVE-2026-22981, CVE-2026-22982, CVE-2026-22985, CVE-2026-22986,     CVE-2026-22987, CVE-2026-22989, CVE-2026-22990, CVE-2026-22991, CVE-2026-22992, CVE-2026-22993,     CVE-2026-22994, CVE-2026-22996, CVE-2026-22997, CVE-2026-22998, CVE-2026-22999, CVE-2026-23000,     CVE-2026-23001, CVE-2026-23002, CVE-2026-23003, CVE-2026-23004, CVE-2026-23005, CVE-2026-23006,     CVE-2026-23007, CVE-2026-23008, CVE-2026-23009, CVE-2026-23010, CVE-2026-23011, CVE-2026-23012,     CVE-2026-23013, CVE-2026-23014, CVE-2026-23015, CVE-2026-23017, CVE-2026-23018, CVE-2026-23019,     CVE-2026-23020, CVE-2026-23021, CVE-2026-23022, CVE-2026-23023, CVE-2026-23024, CVE-2026-23025,     CVE-2026-23026, CVE-2026-23030, CVE-2026-23031, CVE-2026-23032, CVE-2026-23033, CVE-2026-23034,     CVE-2026-23035, CVE-2026-23036, CVE-2026-23037, CVE-2026-23038, CVE-2026-23042, CVE-2026-23044,     CVE-2026-23045, CVE-2026-23046, CVE-2026-23047, CVE-2026-23049, CVE-2026-23050, CVE-2026-23051,     CVE-2026-23052, CVE-2026-23053, CVE-2026-23054, CVE-2026-23055, 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-2026-23066, CVE-2026-23067, CVE-2026-23068, CVE-2026-23069, CVE-2026-23070,     CVE-2026-23071, CVE-2026-23072, CVE-2026-23073, CVE-2026-23075, CVE-2026-23076, CVE-2026-23077,     CVE-2026-23078, CVE-2026-23079, CVE-2026-23080, CVE-2026-23081, 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-2026-23092, 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-2026-23104, CVE-2026-23105, CVE-2026-23106, CVE-2026-23107, CVE-2026-23108, CVE-2026-23109,     CVE-2026-23110, CVE-2026-23113, CVE-2026-23114, CVE-2026-23115, CVE-2026-23116, CVE-2026-23118,     CVE-2026-23119, CVE-2026-23120, CVE-2026-23121, CVE-2026-23122, CVE-2026-23123, CVE-2026-23124,     CVE-2026-23125, CVE-2026-23126, CVE-2026-23128, CVE-2026-23129, CVE-2026-23130, CVE-2026-23131,     CVE-2026-23133, CVE-2026-23135, CVE-2026-23136, CVE-2026-23137, CVE-2026-23138, CVE-2026-23139,     CVE-2026-23140, CVE-2026-23141, CVE-2026-23142, CVE-2026-23143, CVE-2026-23144, CVE-2026-23145,     CVE-2026-23146, CVE-2026-23147, CVE-2026-23148, CVE-2026-23150, CVE-2026-23151, CVE-2026-23152,     CVE-2026-23154, CVE-2026-23156, CVE-2026-23157, CVE-2026-23158, CVE-2026-23159, CVE-2026-23160,     CVE-2026-23161, CVE-2026-23162, CVE-2026-23163, CVE-2026-23164, CVE-2026-23165, CVE-2026-23166,     CVE-2026-23167, CVE-2026-23168, CVE-2026-23169, CVE-2026-23170, CVE-2026-23171, CVE-2026-23172,     CVE-2026-23173, CVE-2026-23212, CVE-2026-31405, CVE-2026-31414, CVE-2026-31444, CVE-2026-31501,     CVE-2026-31589, CVE-2026-31633, CVE-2026-31636, CVE-2026-31705, CVE-2026-43198, CVE-2026-43379,     CVE-2026-43465, CVE-2026-43499, CVE-2026-46113, CVE-2026-46137, CVE-2026-46242, CVE-2026-46290,     CVE-2026-46317, CVE-2026-46331, CVE-2026-52924, CVE-2026-52989, CVE-2026-53086, CVE-2026-53131,     CVE-2026-53176, CVE-2026-53212, CVE-2026-53225, CVE-2026-53228, CVE-2026-53277, CVE-2026-53359)

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.

ID	Name	Product	Family	Published	Updated	Severity
310603	Linux Distros Unpatched Vulnerability : CVE-2026-31444	Nessus	Misc.	4/28/2026	8/22/2026	critical
340678	Ubuntu 24.04 LTS / Pro Realtime 24.04 LTS : Linux kernel (NVIDIA) vulnerabilities (USN-8669-1)	Nessus	Ubuntu Local Security Checks	8/26/2026	8/27/2026	high

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