In the Linux kernel, the following vulnerability has been resolved: ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up The issue was caused by dput(upper) being called before ovl_dentry_update_reval(), while upper->d_flags was still accessed in ovl_dentry_remote(). Move dput(upper) after its last use to prevent use-after-free. BUG: KASAN: slab-use-after-free in ovl_dentry_remote fs/overlayfs/util.c:162 [inline] BUG: KASAN: slab-use-after-free in ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167 Call Trace: <TASK> __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 print_address_description mm/kasan/report.c:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110 mm/kasan/report.c:601 ovl_dentry_remote fs/overlayfs/util.c:162 [inline] ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167 ovl_link_up fs/overlayfs/copy_up.c:610 [inline] ovl_copy_up_one+0x2105/0x3490 fs/overlayfs/copy_up.c:1170 ovl_copy_up_flags+0x18d/0x200 fs/overlayfs/copy_up.c:1223 ovl_rename+0x39e/0x18c0 fs/overlayfs/dir.c:1136 vfs_rename+0xf84/0x20a0 fs/namei.c:4893 ... </TASK>

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.

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-7510-1 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;

    - Network block device driver;

    - Bus devices;

    - Character device driver;

    - TPM device driver;

    - Clock framework and drivers;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - I2C subsystem;

    - InfiniBand drivers;

    - Media drivers;

    - NVIDIA Tegra memory controller driver;

    - Network drivers;

    - PCI subsystem;

    - PPS (Pulse Per Second) driver;

    - PTP clock framework;

    - RapidIO drivers;

    - Real Time Clock drivers;

    - SLIMbus drivers;

    - QCOM SoC drivers;

    - Trusted Execution Environment drivers;

    - TTY drivers;

    - USB DSL drivers;

    - USB Device Class drivers;

    - USB core drivers;

    - USB Gadget drivers;

    - USB Host Controller drivers;

    - Renesas USBHS Controller drivers;

    - ACRN Hypervisor Service Module driver;

    - File systems infrastructure;

    - BTRFS file system;

    - F2FS file system;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - Overlay file system;

    - SMB network file system;

    - UBI file system;

    - KVM subsystem;

    - L3 Master device support module;

    - Process Accounting mechanism;

    - Padata parallel execution mechanism;

    - printk logging mechanism;

    - Scheduler infrastructure;

    - Timer subsystem;

    - Tracing infrastructure;

    - Memory management;

    - 802.1Q VLAN protocol;

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

    - Networking core;

    - IPv4 networking;

    - IPv6 networking;

    - Logical Link layer;

    - Multipath TCP;

    - Netfilter;

    - NFC subsystem;

    - Open vSwitch;

    - Rose network layer;

    - Network traffic control;

    - Wireless networking;

    - Landlock security;

    - Linux Security Modules (LSM) Framework;

    - Tomoyo security module; (CVE-2025-21731, CVE-2025-21926, CVE-2025-21830, CVE-2024-58010, CVE-2025-21745,     CVE-2025-21871, CVE-2024-57980, CVE-2025-21916, CVE-2025-21735, CVE-2025-21763, CVE-2025-21799,     CVE-2025-21811, CVE-2025-21814, CVE-2024-58083, CVE-2025-21922, CVE-2025-21802, CVE-2024-58034,     CVE-2025-21758, CVE-2024-58069, CVE-2025-21905, CVE-2024-57986, CVE-2025-21718, CVE-2024-58020,     CVE-2025-21858, CVE-2025-21749, CVE-2025-21928, CVE-2024-58085, CVE-2025-21795, CVE-2025-21744,     CVE-2025-21776, CVE-2025-21804, CVE-2024-57973, CVE-2025-21848, CVE-2025-21844, CVE-2024-56721,     CVE-2024-58079, CVE-2025-21781, CVE-2025-21866, CVE-2024-58052, CVE-2024-58017, CVE-2024-58071,     CVE-2025-21791, CVE-2024-26982, CVE-2025-21787, CVE-2024-58090, CVE-2025-21951, CVE-2025-21846,     CVE-2025-21722, CVE-2024-58001, CVE-2025-21715, CVE-2025-21919, CVE-2025-21904, CVE-2024-57977,     CVE-2025-21785, CVE-2025-21950, CVE-2025-21924, CVE-2024-57979, CVE-2025-21711, CVE-2024-47726,     CVE-2024-58002, CVE-2025-21914, CVE-2024-58086, CVE-2024-58005, CVE-2025-21835, CVE-2024-58051,     CVE-2025-21761, CVE-2025-21760, CVE-2025-21767, CVE-2025-21766, CVE-2025-21726, CVE-2025-21865,     CVE-2024-58014, CVE-2025-21878, CVE-2025-21934, CVE-2024-58007, CVE-2025-21898, CVE-2025-21806,     CVE-2024-58058, CVE-2025-21779, CVE-2024-58063, CVE-2025-21708, CVE-2025-21684, CVE-2024-57834,     CVE-2025-21971, CVE-2025-21762, CVE-2025-21728, CVE-2024-58076, CVE-2025-21704, CVE-2025-21719,     CVE-2025-21948, CVE-2025-21707, CVE-2025-21917, CVE-2025-21782, CVE-2025-21943, CVE-2025-21765,     CVE-2025-21721, CVE-2024-58016, CVE-2025-21859, CVE-2025-21909, CVE-2025-21748, CVE-2025-21912,     CVE-2025-21736, CVE-2025-21862, CVE-2024-57978, CVE-2025-21826, CVE-2025-21920, CVE-2025-21772,     CVE-2025-21877, CVE-2025-21935, CVE-2024-56599, CVE-2025-21820, CVE-2025-21764, CVE-2025-21796,     CVE-2025-21887, CVE-2025-21753, CVE-2025-21910, CVE-2024-57981, CVE-2025-21727, CVE-2025-21875,     CVE-2024-58072, CVE-2024-58055, CVE-2025-21925, CVE-2025-21823, CVE-2025-21647)

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 host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7512-1 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;

    - Network block device driver;

    - Bus devices;

    - Character device driver;

    - TPM device driver;

    - Clock framework and drivers;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - I2C subsystem;

    - InfiniBand drivers;

    - Media drivers;

    - NVIDIA Tegra memory controller driver;

    - Network drivers;

    - PCI subsystem;

    - PPS (Pulse Per Second) driver;

    - PTP clock framework;

    - RapidIO drivers;

    - Real Time Clock drivers;

    - SLIMbus drivers;

    - QCOM SoC drivers;

    - Trusted Execution Environment drivers;

    - TTY drivers;

    - USB DSL drivers;

    - USB Device Class drivers;

    - USB core drivers;

    - USB Gadget drivers;

    - USB Host Controller drivers;

    - Renesas USBHS Controller drivers;

    - ACRN Hypervisor Service Module driver;

    - File systems infrastructure;

    - BTRFS file system;

    - F2FS file system;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - Overlay file system;

    - SMB network file system;

    - UBI file system;

    - KVM subsystem;

    - L3 Master device support module;

    - Netfilter;

    - Process Accounting mechanism;

    - Padata parallel execution mechanism;

    - printk logging mechanism;

    - Scheduler infrastructure;

    - Timer subsystem;

    - Tracing infrastructure;

    - Memory management;

    - 802.1Q VLAN protocol;

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

    - Networking core;

    - IPv4 networking;

    - IPv6 networking;

    - Logical Link layer;

    - Multipath TCP;

    - NFC subsystem;

    - Open vSwitch;

    - Rose network layer;

    - Network traffic control;

    - Wireless networking;

    - Landlock security;

    - Linux Security Modules (LSM) Framework;

    - Tomoyo security module; (CVE-2025-21914, CVE-2024-58090, CVE-2024-58017, CVE-2024-58069, CVE-2025-21920,     CVE-2025-21935, CVE-2024-57977, CVE-2025-21763, CVE-2025-21684, CVE-2025-21721, CVE-2025-21736,     CVE-2024-58020, CVE-2025-21799, CVE-2025-21904, CVE-2025-21934, CVE-2025-21719, CVE-2025-21811,     CVE-2025-21727, CVE-2024-58071, CVE-2025-21905, CVE-2024-26982, CVE-2025-21820, CVE-2024-58052,     CVE-2025-21925, CVE-2025-21796, CVE-2025-21779, CVE-2025-21823, CVE-2024-58063, CVE-2025-21772,     CVE-2025-21924, CVE-2025-21765, CVE-2024-56721, CVE-2025-21859, CVE-2025-21760, CVE-2025-21753,     CVE-2025-21835, CVE-2025-21887, CVE-2024-58002, CVE-2024-58086, CVE-2025-21744, CVE-2025-21848,     CVE-2024-57986, CVE-2025-21865, CVE-2025-21766, CVE-2025-21715, CVE-2023-52664, CVE-2025-21764,     CVE-2024-58085, CVE-2025-21704, CVE-2024-58072, CVE-2024-58079, CVE-2025-21846, CVE-2025-21647,     CVE-2025-21726, CVE-2024-58034, CVE-2025-21943, CVE-2025-21875, CVE-2025-21871, CVE-2025-21898,     CVE-2024-58083, CVE-2025-21748, CVE-2024-57834, CVE-2024-58051, CVE-2025-21862, CVE-2025-21722,     CVE-2025-21912, CVE-2025-21950, CVE-2025-21917, CVE-2024-57973, CVE-2024-56599, CVE-2025-21922,     CVE-2025-21787, CVE-2025-21919, CVE-2025-21971, CVE-2024-57979, CVE-2024-35889, CVE-2025-21804,     CVE-2025-21782, CVE-2025-21910, CVE-2025-21909, CVE-2025-21708, CVE-2025-21830, CVE-2025-21791,     CVE-2024-58016, CVE-2025-21711, CVE-2025-21928, CVE-2024-58007, CVE-2024-58005, CVE-2023-52927,     CVE-2025-21802, CVE-2024-58010, CVE-2024-58001, CVE-2024-47726, CVE-2024-57978, CVE-2024-58055,     CVE-2025-21735, CVE-2025-21795, CVE-2025-21745, CVE-2025-21878, CVE-2025-21877, CVE-2025-21826,     CVE-2024-58076, CVE-2025-21806, CVE-2025-21858, CVE-2025-21866, CVE-2025-21776, CVE-2025-21785,     CVE-2025-21758, CVE-2024-57980, CVE-2025-21728, CVE-2024-58014, CVE-2025-21814, CVE-2025-21762,     CVE-2025-21951, CVE-2025-21767, CVE-2025-21844, CVE-2025-21781, CVE-2024-58058, CVE-2025-21761,     CVE-2025-21707, CVE-2025-21731, CVE-2024-44964, CVE-2025-21749, CVE-2024-57981, CVE-2025-21948,     CVE-2025-21926, CVE-2025-21916, CVE-2025-21718)

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

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

The remote Ubuntu 22.04 LTS host has a package installed that is affected by multiple vulnerabilities as referenced in the USN-7511-1 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;

    - Network block device driver;

    - Bus devices;

    - Character device driver;

    - TPM device driver;

    - Clock framework and drivers;

    - GPIO subsystem;

    - GPU drivers;

    - HID subsystem;

    - I2C subsystem;

    - InfiniBand drivers;

    - Media drivers;

    - NVIDIA Tegra memory controller driver;

    - Network drivers;

    - PCI subsystem;

    - PPS (Pulse Per Second) driver;

    - PTP clock framework;

    - RapidIO drivers;

    - Real Time Clock drivers;

    - SLIMbus drivers;

    - QCOM SoC drivers;

    - Trusted Execution Environment drivers;

    - TTY drivers;

    - USB DSL drivers;

    - USB Device Class drivers;

    - USB core drivers;

    - USB Gadget drivers;

    - USB Host Controller drivers;

    - Renesas USBHS Controller drivers;

    - ACRN Hypervisor Service Module driver;

    - File systems infrastructure;

    - BTRFS file system;

    - F2FS file system;

    - Network file system (NFS) server daemon;

    - NILFS2 file system;

    - Overlay file system;

    - SMB network file system;

    - UBI file system;

    - KVM subsystem;

    - L3 Master device support module;

    - Process Accounting mechanism;

    - Padata parallel execution mechanism;

    - printk logging mechanism;

    - Scheduler infrastructure;

    - Timer subsystem;

    - Tracing infrastructure;

    - Memory management;

    - 802.1Q VLAN protocol;

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

    - Networking core;

    - IPv4 networking;

    - IPv6 networking;

    - Logical Link layer;

    - Multipath TCP;

    - Netfilter;

    - NFC subsystem;

    - Open vSwitch;

    - Rose network layer;

    - Network traffic control;

    - Wireless networking;

    - Landlock security;

    - Linux Security Modules (LSM) Framework;

    - Tomoyo security module; (CVE-2024-58063, CVE-2025-21802, CVE-2025-21910, CVE-2025-21718, CVE-2025-21707,     CVE-2025-21781, CVE-2025-21726, CVE-2024-56599, CVE-2025-21735, CVE-2025-21859, CVE-2025-21924,     CVE-2024-57980, CVE-2024-58002, CVE-2024-58090, CVE-2025-21728, CVE-2024-58055, CVE-2024-57978,     CVE-2025-21704, CVE-2025-21820, CVE-2025-21776, CVE-2025-21919, CVE-2025-21765, CVE-2025-21935,     CVE-2025-21647, CVE-2025-21804, CVE-2024-58072, CVE-2025-21865, CVE-2025-21887, CVE-2024-58079,     CVE-2024-58020, CVE-2024-35889, CVE-2024-58017, CVE-2024-58005, CVE-2025-21862, CVE-2025-21875,     CVE-2025-21925, CVE-2025-21951, CVE-2025-21866, CVE-2025-21871, CVE-2025-21914, CVE-2025-21948,     CVE-2025-21715, CVE-2025-21848, CVE-2025-21905, CVE-2025-21830, CVE-2024-58051, CVE-2025-21909,     CVE-2025-21711, CVE-2025-21684, CVE-2025-21844, CVE-2025-21904, CVE-2025-21898, CVE-2025-21767,     CVE-2024-58069, CVE-2024-57834, CVE-2025-21934, CVE-2025-21926, CVE-2025-21708, CVE-2025-21736,     CVE-2024-58085, CVE-2024-26982, CVE-2024-58083, CVE-2025-21920, CVE-2025-21764, CVE-2025-21753,     CVE-2025-21799, CVE-2025-21846, CVE-2024-57979, CVE-2025-21785, CVE-2024-58010, CVE-2024-57986,     CVE-2025-21762, CVE-2025-21912, CVE-2025-21744, CVE-2025-21787, CVE-2025-21761, CVE-2025-21971,     CVE-2025-21943, CVE-2024-47726, CVE-2025-21721, CVE-2025-21748, CVE-2025-21791, CVE-2025-21796,     CVE-2025-21806, CVE-2025-21779, CVE-2024-58001, CVE-2025-21745, CVE-2025-21814, CVE-2025-21719,     CVE-2025-21950, CVE-2025-21858, CVE-2025-21823, CVE-2025-21758, CVE-2024-57981, CVE-2024-58058,     CVE-2024-56721, CVE-2025-21811, CVE-2024-58086, CVE-2025-21722, CVE-2025-21727, CVE-2025-21760,     CVE-2024-58076, CVE-2025-21916, CVE-2025-21826, CVE-2024-57973, CVE-2025-21795, CVE-2025-21763,     CVE-2024-58014, CVE-2025-21917, CVE-2024-57977, CVE-2024-44964, CVE-2024-58016, CVE-2024-58007,     CVE-2025-21928, CVE-2024-58052, CVE-2025-21749, CVE-2025-21772, CVE-2025-21877, CVE-2025-21782,     CVE-2025-21922, CVE-2025-21766, CVE-2024-58034, CVE-2025-21835, CVE-2025-21878, CVE-2025-21731,     CVE-2024-58071)

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 version of kernel installed on the remote CBL Mariner 2.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-21887 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: ovl: fix UAF in     ovl_dentry_update_reval by moving dput() in ovl_link_up The issue was caused by dput(upper) being called     before ovl_dentry_update_reval(), while upper->d_flags was still accessed in ovl_dentry_remote(). Move     dput(upper) after its last use to prevent use-after-free. BUG: KASAN: slab-use-after-free in     ovl_dentry_remote fs/overlayfs/util.c:162 [inline] BUG: KASAN: slab-use-after-free in     ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167 Call Trace: <TASK> __dump_stack     lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 print_address_description     mm/kasan/report.c:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110     mm/kasan/report.c:601 ovl_dentry_remote fs/overlayfs/util.c:162 [inline] ovl_dentry_update_reval+0xd2/0xf0     fs/overlayfs/util.c:167 ovl_link_up fs/overlayfs/copy_up.c:610 [inline] ovl_copy_up_one+0x2105/0x3490     fs/overlayfs/copy_up.c:1170 ovl_copy_up_flags+0x18d/0x200 fs/overlayfs/copy_up.c:1223     ovl_rename+0x39e/0x18c0 fs/overlayfs/dir.c:1136 vfs_rename+0xf84/0x20a0 fs/namei.c:4893 ... </TASK>     (CVE-2025-21887)

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

The version of kernel installed on the remote Azure Linux 3.0 host is prior to tested version. It is, therefore, affected by a vulnerability as referenced in the CVE-2025-21887 advisory.

  - In the Linux kernel, the following vulnerability has been resolved: ovl: fix UAF in     ovl_dentry_update_reval by moving dput() in ovl_link_up The issue was caused by dput(upper) being called     before ovl_dentry_update_reval(), while upper->d_flags was still accessed in ovl_dentry_remote(). Move     dput(upper) after its last use to prevent use-after-free. BUG: KASAN: slab-use-after-free in     ovl_dentry_remote fs/overlayfs/util.c:162 [inline] BUG: KASAN: slab-use-after-free in     ovl_dentry_update_reval+0xd2/0xf0 fs/overlayfs/util.c:167 Call Trace: <TASK> __dump_stack     lib/dump_stack.c:88 [inline] dump_stack_lvl+0x116/0x1f0 lib/dump_stack.c:114 print_address_description     mm/kasan/report.c:377 [inline] print_report+0xc3/0x620 mm/kasan/report.c:488 kasan_report+0xd9/0x110     mm/kasan/report.c:601 ovl_dentry_remote fs/overlayfs/util.c:162 [inline] ovl_dentry_update_reval+0xd2/0xf0     fs/overlayfs/util.c:167 ovl_link_up fs/overlayfs/copy_up.c:610 [inline] ovl_copy_up_one+0x2105/0x3490     fs/overlayfs/copy_up.c:1170 ovl_copy_up_flags+0x18d/0x200 fs/overlayfs/copy_up.c:1223     ovl_rename+0x39e/0x18c0 fs/overlayfs/dir.c:1136 vfs_rename+0xf84/0x20a0 fs/namei.c:4893 ... </TASK>     (CVE-2025-21887)

Note that Nessus has not tested for this issue 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 5.10.236-227.928. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.10-2025-090 advisory.

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

    net/mlx5e: Fix use-after-free of encap entry in neigh update handler (CVE-2021-47247)

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

    i2c: dev: check return value when calling dev_set_name() (CVE-2022-49046)

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

    blk-throttle: Set BIO_THROTTLED when bio has been throttled (CVE-2022-49465)

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

    x86/kexec: fix memory leak of elf header buffer (CVE-2022-49546)

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

    ipv6: Fix signed integer overflow in __ip6_append_data (CVE-2022-49728)

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

    scsi: iscsi_tcp: Fix UAF during logout when accessing the shost ipaddress (CVE-2023-52975)

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

    btrfs: handle errors from btrfs_dec_ref() properly (CVE-2024-46753)

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

    mm: call the security_mmap_file() LSM hook in remap_file_pages() (CVE-2024-47745)

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

    bpf, sockmap: Fix race between element replace and close() (CVE-2024-56664)

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

    ipv6: mcast: extend RCU protection in igmp6_send() (CVE-2025-21759)

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

    KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel (CVE-2025-21779)

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

    ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up (CVE-2025-21887)

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

    x86/microcode/AMD: Fix out-of-bounds on systems with CPU-less NUMA nodes (CVE-2025-21991)

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

    proc: fix UAF in proc_get_inode() (CVE-2025-21999)

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

    net: atm: fix use after free in lec_send() (CVE-2025-22004)

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-5900 advisory.

    - -------------------------------------------------------------------------     Debian Security Advisory DSA-5900-1                   security@debian.org     https://www.debian.org/security/                     Salvatore Bonaccorso     April 12, 2025                        https://www.debian.org/security/faq
    - -------------------------------------------------------------------------

    Package        : linux     CVE ID         : CVE-2023-52857 CVE-2023-52927 CVE-2024-24855 CVE-2024-26656                      CVE-2024-26767 CVE-2024-26982 CVE-2024-27056 CVE-2024-35866                      CVE-2024-38611 CVE-2024-40973 CVE-2024-42129 CVE-2024-43831                      CVE-2024-46772 CVE-2024-47753 CVE-2024-47754 CVE-2024-50056                      CVE-2024-50246 CVE-2024-53166 CVE-2024-57977 CVE-2024-58002                      CVE-2024-58005 CVE-2024-58079 CVE-2024-58090 CVE-2025-21702                      CVE-2025-21712 CVE-2025-21721 CVE-2025-21756 CVE-2025-21838                      CVE-2025-21844 CVE-2025-21846 CVE-2025-21848 CVE-2025-21855                      CVE-2025-21858 CVE-2025-21859 CVE-2025-21862 CVE-2025-21864                      CVE-2025-21865 CVE-2025-21866 CVE-2025-21867 CVE-2025-21871                      CVE-2025-21875 CVE-2025-21877 CVE-2025-21878 CVE-2025-21881                      CVE-2025-21887 CVE-2025-21891 CVE-2025-21898 CVE-2025-21899                      CVE-2025-21904 CVE-2025-21905 CVE-2025-21909 CVE-2025-21910                      CVE-2025-21912 CVE-2025-21913 CVE-2025-21914 CVE-2025-21916                      CVE-2025-21917 CVE-2025-21918 CVE-2025-21919 CVE-2025-21920                      CVE-2025-21922 CVE-2025-21924 CVE-2025-21925 CVE-2025-21926                      CVE-2025-21928 CVE-2025-21934 CVE-2025-21935 CVE-2025-21936                      CVE-2025-21937 CVE-2025-21938 CVE-2025-21941 CVE-2025-21943                      CVE-2025-21944 CVE-2025-21945 CVE-2025-21947 CVE-2025-21948                      CVE-2025-21950 CVE-2025-21951 CVE-2025-21956 CVE-2025-21957                      CVE-2025-21959 CVE-2025-21960 CVE-2025-21962 CVE-2025-21963                      CVE-2025-21964 CVE-2025-21968 CVE-2025-21970 CVE-2025-21971                      CVE-2025-21975 CVE-2025-21978 CVE-2025-21979 CVE-2025-21980                      CVE-2025-21981 CVE-2025-21986 CVE-2025-21991 CVE-2025-21992                      CVE-2025-21993 CVE-2025-21994 CVE-2025-21996 CVE-2025-21997                      CVE-2025-21999 CVE-2025-22004 CVE-2025-22005 CVE-2025-22007                      CVE-2025-22008 CVE-2025-22010 CVE-2025-22014 CVE-2025-22015

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

    For the stable distribution (bookworm), these problems have been fixed in     version 6.1.133-1.

    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.

The version of kernel installed on the remote host is prior to 5.15.179-121.185. It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2KERNEL-5.15-2025-069 advisory.

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

    Squashfs: check the inode number is not the invalid value of zero (CVE-2024-26982)

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

    KVM: x86: Acquire kvm->srcu when handling KVM_SET_VCPU_EVENTS (CVE-2024-46830)

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

    pps: Fix a use-after-free (CVE-2024-57979)

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

    KVM: Explicitly verify target vCPU is online in kvm_get_vcpu() (CVE-2024-58083)

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

    net: sched: Disallow replacing of child qdisc from one parent to another (CVE-2025-21700)

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

    net: avoid race between device unregistration and ethnl ops (CVE-2025-21701)

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

    padata: avoid UAF for reorder_work (CVE-2025-21726)

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

    padata: fix UAF in padata_reorder (CVE-2025-21727)

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

    nbd: don't allow reconnect after disconnect (CVE-2025-21731)

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

    btrfs: fix use-after-free when attempting to join an aborted transaction (CVE-2025-21753)

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

    vsock: Keep the binding until socket destruction (CVE-2025-21756)

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

    ipv6: mcast: add RCU protection to mld_newpack() (CVE-2025-21758)

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

    ndisc: extend RCU protection in ndisc_send_skb() (CVE-2025-21760)

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

    openvswitch: use RCU protection in ovs_vport_cmd_fill_info() (CVE-2025-21761)

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

    arp: use RCU protection in arp_xmit() (CVE-2025-21762)

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

    neighbour: use RCU protection in __neigh_notify() (CVE-2025-21763)

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

    ndisc: use RCU protection in ndisc_alloc_skb() (CVE-2025-21764)

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

    KVM: x86: Reject Hyper-V's SEND_IPI hypercalls if local APIC isn't in-kernel (CVE-2025-21779)

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

    arm64: cacheinfo: Avoid out-of-bounds write to cacheinfo array (CVE-2025-21785)

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

    vrf: use RCU protection in l3mdev_l3_out() (CVE-2025-21791)

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

    nfsd: clear acl_access/acl_default after releasing them (CVE-2025-21796)

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

    geneve: Fix use-after-free in geneve_find_dev(). (CVE-2025-21858)

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

    ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up (CVE-2025-21887)

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

    sched/fair: Fix potential memory corruption in child_cfs_rq_on_list (CVE-2025-21919)

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

    vlan: enforce underlying device type (CVE-2025-21920)

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

    HID: intel-ish-hid: Fix use-after-free issue in ishtp_hid_remove() (CVE-2025-21928)

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.

It is, therefore, affected by multiple vulnerabilities as referenced in the ALAS2023-2025-901 advisory.

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

    smb: client: fix use-after-free of signing key (CVE-2024-53179)

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

    pfifo_tail_enqueue: Drop new packet when sch->limit == 0 (CVE-2025-21702)

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

    geneve: Fix use-after-free in geneve_find_dev(). (CVE-2025-21858)

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

    ovl: fix UAF in ovl_dentry_update_reval by moving dput() in ovl_link_up (CVE-2025-21887)

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.

ID	Name	Product	Family	Severity
236983	Ubuntu 24.04 LTS / 24.10 : Linux kernel vulnerabilities (USN-7521-1)	Nessus	Ubuntu Local Security Checks	high
236880	Ubuntu 20.04 LTS / 22.04 LTS : Linux kernel vulnerabilities (USN-7510-1)	Nessus	Ubuntu Local Security Checks	high
236879	Ubuntu 20.04 LTS : Linux kernel (GCP) vulnerabilities (USN-7512-1)	Nessus	Ubuntu Local Security Checks	high
236875	Ubuntu 22.04 LTS : Linux kernel (GCP) vulnerabilities (USN-7511-1)	Nessus	Ubuntu Local Security Checks	high
235253	CBL Mariner 2.0 Security Update: kernel (CVE-2025-21887)	Nessus	MarinerOS Local Security Checks	high
235237	Azure Linux 3.0 Security Update: kernel (CVE-2025-21887)	Nessus	Azure Linux Local Security Checks	high
234958	Amazon Linux 2 : kernel (ALASKERNEL-5.10-2025-090)	Nessus	Amazon Linux Local Security Checks	high
234309	Debian dsa-5900 : affs-modules-6.1.0-28-4kc-malta-di - security update	Nessus	Debian Local Security Checks	high
233694	Amazon Linux 2 : kernel (ALASKERNEL-5.15-2025-069)	Nessus	Amazon Linux Local Security Checks	high
233394	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2025-901)	Nessus	Amazon Linux Local Security Checks	high

Detections

Analytics

CVE-2025-21887

high

Tenable Plugins

high

high

high

high

high

high

high

high

high

high