In the Linux kernel, the following vulnerability has been resolved: io_uring: prevent opcode speculation sqe->opcode is used for different tables, make sure we santitise it against speculations.

The remote Ubuntu 24.04 LTS / 24.10 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7521-1 advisory.

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

    - ARM64 architecture;

    - PowerPC architecture;

    - x86 architecture;

    - Block layer subsystem;

    - Serial ATA and Parallel ATA drivers;

    - Drivers core;

    - Network block device driver;

    - Bluetooth drivers;

    - Character device driver;

    - TPM device driver;

    - Clock framework and drivers;

    - Hardware crypto device drivers;

    - FireWire subsystem;

    - EFI core;

    - Qualcomm firmware drivers;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - I2C subsystem;

    - I3C subsystem;

    - InfiniBand drivers;

    - Input Device (Mouse) drivers;

    - IOMMU subsystem;

    - Multiple devices driver;

    - Media drivers;

    - NVIDIA Tegra memory controller driver;

    - Fastrpc Driver;

    - Network drivers;

    - Operating Performance Points (OPP) driver;

    - PCI subsystem;

    - x86 platform drivers;

    - PPS (Pulse Per Second) driver;

    - PTP clock framework;

    - Remote Processor subsystem;

    - Real Time Clock drivers;

    - S/390 drivers;

    - SCSI subsystem;

    - QCOM SoC drivers;

    - SPI subsystem;

    - Media staging drivers;

    - Trusted Execution Environment drivers;

    - TTY drivers;

    - UFS subsystem;

    - USB Device Class drivers;

    - USB core drivers;

    - USB Gadget drivers;

    - USB Host Controller drivers;

    - Framebuffer layer;

    - File systems infrastructure;

    - BTRFS file system;

    - Ceph distributed file system;

    - Network file system (NFS) client;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - Overlay file system;

    - SMB network file system;

    - UBI file system;

    - BPF subsystem;

    - Timer subsystem;

    - KVM subsystem;

    - Networking core;

    - ptr_ring data structure definitions;

    - Networking subsytem;

    - Amateur Radio drivers;

    - L3 Master device support module;

    - TCP network protocol;

    - XFRM subsystem;

    - Tracing infrastructure;

    - io_uring subsystem;

    - Process Accounting mechanism;

    - Perf events;

    - Padata parallel execution mechanism;

    - printk logging mechanism;

    - Scheduler infrastructure;

    - Workqueue subsystem;

    - Memory management;

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

    - Bluetooth subsystem;

    - IPv4 networking;

    - IPv6 networking;

    - MAC80211 subsystem;

    - Multipath TCP;

    - Netfilter;

    - NFC subsystem;

    - Open vSwitch;

    - Rose network layer;

    - RxRPC session sockets;

    - Network traffic control;

    - Wireless networking;

    - Key management;

    - Landlock security;

    - Linux Security Modules (LSM) Framework;

    - Tomoyo security module;

    - SoC audio core drivers;

    - SOF drivers; (CVE-2025-21737, CVE-2025-21711, CVE-2025-21987, CVE-2025-21848, CVE-2024-49570,     CVE-2025-21762, CVE-2025-21738, CVE-2025-21712, CVE-2025-21719, CVE-2025-21870, CVE-2024-57984,     CVE-2025-21815, CVE-2025-21744, CVE-2024-58058, CVE-2024-58078, CVE-2024-57990, CVE-2024-54458,     CVE-2025-21899, CVE-2025-21814, CVE-2025-21746, CVE-2024-54456, CVE-2025-21739, CVE-2024-58057,     CVE-2025-21855, CVE-2025-21758, CVE-2024-58006, CVE-2024-58007, CVE-2025-21720, CVE-2024-58090,     CVE-2025-21852, CVE-2024-57982, CVE-2024-58013, CVE-2024-58082, CVE-2025-21825, CVE-2024-58072,     CVE-2024-57996, CVE-2025-21787, CVE-2025-21742, CVE-2025-21705, CVE-2025-21829, CVE-2024-58060,     CVE-2025-21811, CVE-2025-21900, CVE-2025-21853, CVE-2025-21809, CVE-2025-21938, CVE-2025-21728,     CVE-2025-21785, CVE-2025-21732, CVE-2025-21888, CVE-2025-21768, CVE-2025-21875, CVE-2025-21721,     CVE-2025-21766, CVE-2025-21892, CVE-2024-57953, CVE-2025-21772, CVE-2025-21735, CVE-2024-58017,     CVE-2024-58086, CVE-2024-58084, CVE-2025-21761, CVE-2024-58008, CVE-2024-57988, CVE-2025-21874,     CVE-2024-58011, CVE-2025-21706, CVE-2024-57999, CVE-2025-21858, CVE-2024-58061, CVE-2025-21727,     CVE-2025-21780, CVE-2024-58051, CVE-2025-21791, CVE-2025-21788, CVE-2025-21786, CVE-2024-58012,     CVE-2024-58010, CVE-2024-58001, CVE-2025-21844, CVE-2025-21708, CVE-2024-57834, CVE-2025-21873,     CVE-2025-21704, CVE-2025-21765, CVE-2025-21839, CVE-2025-21723, CVE-2024-57974, CVE-2025-21876,     CVE-2025-21782, CVE-2025-21866, CVE-2024-58076, CVE-2025-21724, CVE-2025-21895, CVE-2025-21770,     CVE-2025-21835, CVE-2024-58052, CVE-2025-21827, CVE-2024-58069, CVE-2025-21828, CVE-2025-21734,     CVE-2025-21781, CVE-2025-21971, CVE-2025-21775, CVE-2024-52559, CVE-2024-58020, CVE-2025-21713,     CVE-2024-58068, CVE-2024-58018, CVE-2025-21806, CVE-2025-21802, CVE-2025-21731, CVE-2025-21741,     CVE-2025-21847, CVE-2025-21767, CVE-2024-58003, CVE-2024-57993, CVE-2025-21725, CVE-2025-21796,     CVE-2025-21764, CVE-2025-21862, CVE-2025-21733, CVE-2024-58075, CVE-2025-21808, CVE-2024-58034,     CVE-2025-21707, CVE-2024-58080, CVE-2025-21784, CVE-2024-57994, CVE-2025-21890, CVE-2025-21754,     CVE-2024-58063, CVE-2025-21826, CVE-2025-21821, CVE-2024-58079, CVE-2024-58056, CVE-2025-21798,     CVE-2024-58077, CVE-2024-58019, CVE-2025-21748, CVE-2025-21759, CVE-2024-58004, CVE-2024-58081,     CVE-2024-57978, CVE-2025-21865, CVE-2024-58002, CVE-2025-21810, CVE-2025-21743, CVE-2024-57989,     CVE-2025-21718, CVE-2024-57987, CVE-2025-21877, CVE-2024-57973, CVE-2024-58070, CVE-2024-58071,     CVE-2025-21891, CVE-2024-58021, CVE-2024-58016, CVE-2024-58005, CVE-2025-21760, CVE-2025-21883,     CVE-2025-21878, CVE-2025-21881, CVE-2025-21838, CVE-2025-21783, CVE-2024-57986, CVE-2025-21793,     CVE-2025-21859, CVE-2025-21792, CVE-2025-21820, CVE-2025-21799, CVE-2025-21750, CVE-2025-21795,     CVE-2025-21854, CVE-2025-21836, CVE-2025-21726, CVE-2025-21846, CVE-2025-21864, CVE-2024-57977,     CVE-2025-21887, CVE-2025-21710, CVE-2025-21889, CVE-2025-21812, CVE-2025-21773, CVE-2024-57852,     CVE-2025-21856, CVE-2025-21871, CVE-2025-21763, CVE-2024-58064, CVE-2025-21804, CVE-2024-58055,     CVE-2025-21898, CVE-2025-21776, CVE-2025-21869, CVE-2025-21745, CVE-2025-21736, CVE-2025-21716,     CVE-2024-57981, CVE-2024-57979, CVE-2025-21715, CVE-2024-57998, CVE-2025-21790, CVE-2024-58085,     CVE-2025-21749, CVE-2024-58088, CVE-2025-21753, CVE-2025-21851, CVE-2024-58054, CVE-2025-21830,     CVE-2025-21832, CVE-2024-57980, CVE-2025-21885, CVE-2025-21863, CVE-2024-58053, CVE-2025-21823,     CVE-2025-21857, CVE-2024-58083, CVE-2024-58014, CVE-2025-21816, CVE-2025-21779, CVE-2025-21872,     CVE-2024-57997, CVE-2025-21867, CVE-2024-57985, CVE-2025-21831, CVE-2025-21801, CVE-2025-21868,     CVE-2025-21849)

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.

ID	Name	Product	Family	Severity
236983	Ubuntu 24.04 LTS / 24.10 : Linux kernel vulnerabilities (USN-7521-1)	Nessus	Ubuntu Local Security Checks	high
234443	Photon OS 4.0: Linux PHSA-2025-4.0-0780	Nessus	PhotonOS Local Security Checks	high
233768	Photon OS 5.0: Linux PHSA-2025-5.0-0491	Nessus	PhotonOS Local Security Checks	high

Detections

Analytics

CVE-2025-21863

high

Tenable Plugins

high

high

high