CVE-2025-40223
published 2025-12-04CVE-2025-40223: In the Linux kernel, the following vulnerability has been resolved: most: usb: Fix use-after-free in hdm_disconnect hdm_disconnect() calls…
PriorityP424high7.8
EPSS
0.20%
10.3th percentile
In the Linux kernel, the following vulnerability has been resolved:
most: usb: Fix use-after-free in hdm_disconnect
hdm_disconnect() calls most_deregister_interface(), which eventually
unregisters the MOST interface device with device_unregister(iface->dev).
If that drops the last reference, the device core may call release_mdev()
immediately while hdm_disconnect() is still executing.
The old code also freed several mdev-owned allocations in
hdm_disconnect() and then performed additional put_device() calls.
Depending on refcount order, this could lead to use-after-free or
double-free when release_mdev() ran (or when unregister paths also
performed puts).
Fix by moving the frees of mdev-owned allocations into release_mdev(),
so they happen exactly once when the device is truly released, and by
dropping the extra put_device() calls in hdm_disconnect() that are
redundant after device_unregister() and most_deregister_interface().
This addresses the KASAN slab-use-after-free reported by syzbot in
hdm_disconnect(). See report and stack traces in the bug link below.
Affected
29 ranges· showing 25
| Vendor | Product | Version range | Fixed in |
|---|---|---|---|
| debian | linux | < linux 6.1.158-1 (bookworm) | linux 6.1.158-1 (bookworm) |
| linux | linux | — | — |
| linux | linux | >= 97a6f772f36b7f52bcfa56a581bbd2470cffe23d < 5b5c478f09b1b35e7fe6fc9a1786c9bf6030e831 | 5b5c478f09b1b35e7fe6fc9a1786c9bf6030e831 |
| linux | linux | >= 97a6f772f36b7f52bcfa56a581bbd2470cffe23d < 578eb18cd111addec94c43f61cd4b4429e454809 | 578eb18cd111addec94c43f61cd4b4429e454809 |
| linux | linux | >= 97a6f772f36b7f52bcfa56a581bbd2470cffe23d < 33daf469f5294b9d07c4fc98216cace9f4f34cc6 | 33daf469f5294b9d07c4fc98216cace9f4f34cc6 |
| linux | linux | >= 97a6f772f36b7f52bcfa56a581bbd2470cffe23d < 72427dc6f87523995f4e6ae35a948bb2992cabce | 72427dc6f87523995f4e6ae35a948bb2992cabce |
| linux | linux | >= 97a6f772f36b7f52bcfa56a581bbd2470cffe23d < f93a84ffb884d761a9d4e869ba29c238711e81f1 | f93a84ffb884d761a9d4e869ba29c238711e81f1 |
| linux | linux | >= 97a6f772f36b7f52bcfa56a581bbd2470cffe23d < 3a3b8e89c7201c5b3b76ac4a4069d1adde1477d6 | 3a3b8e89c7201c5b3b76ac4a4069d1adde1477d6 |
| linux | linux | >= 97a6f772f36b7f52bcfa56a581bbd2470cffe23d < 4b1270902609ef0d935ed2faa2ea6d122bd148f5 | 4b1270902609ef0d935ed2faa2ea6d122bd148f5 |
| linux | linux_kernel | >= 0 < 5.10.247-1 | 5.10.247-1 |
| linux | linux_kernel | >= 0 < 6.1.158-1 | 6.1.158-1 |
| linux | linux_kernel | >= 0 < 6.12.57-1 | 6.12.57-1 |
| linux | linux_kernel | >= 0 < 6.17.6-1 | 6.17.6-1 |
| linux | linux_kernel | >= 0 < 5.15.0-170.180 | 5.15.0-170.180 |
| linux | linux_kernel | >= 0 < 6.8.0-106.106 | 6.8.0-106.106 |
| linux | linux_kernel | >= 0 < 6.17.0-14.14 | 6.17.0-14.14 |
| linux | linux_kernel | >= 5.11.0 < 5.15.196 | 5.15.196 |
| linux | linux_kernel | >= 5.16.0 < 6.1.158 | 6.1.158 |
| linux | linux_kernel | >= 5.9.0 < 5.10.246 | 5.10.246 |
| linux | linux_kernel | >= 6.13.0 < 6.17.6 | 6.17.6 |
| linux | linux_kernel | >= 6.2.0 < 6.6.115 | 6.6.115 |
| linux | linux_kernel | >= 6.7.0 < 6.12.56 | 6.12.56 |
| msrc | azl3_kernel_6.6.112.1-2_on_azure_linux_3.0 | — | — |
| ubuntu | linux-aws | — | — |
| ubuntu | linux-azure-5.15 | — | — |
CVSS provenance
osv7.8HIGH
vendor_msrc7.8HIGH
vendor_ubuntu7.8HIGH
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An attacker could possibly use these to compromise the system.
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- ARM64 architecture;
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causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
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- Cryptographic API;
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- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
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- HW tracing;
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- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
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- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
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- Sun Sparc architecture;
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- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
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- HW tracing;
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- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
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- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
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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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
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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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
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- PCI subsystem;
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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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network drivers;
- NVME drivers;
- PCI subsystem;
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An attacker could possibly use these to compromise the system.
This update corrects flaws in the following subsystems:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Trans
OSV
linux, linux-raspi, linux-realtime vulnerabilities
osv·2026-02-12
linux, linux-raspi, linux-realtime vulnerabilities
linux, linux-raspi, linux-realtime vulnerabilities
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- Hardwar
OSV
CVE-2025-40223: In the Linux kernel, the following vulnerability has been resolved: most: usb: Fix use-after-free in hdm_disconnect hdm_disconnect() calls most_deregi
osv·2025-12-04
CVE-2025-40223 CVE-2025-40223: In the Linux kernel, the following vulnerability has been resolved: most: usb: Fix use-after-free in hdm_disconnect hdm_disconnect() calls most_deregi
In the Linux kernel, the following vulnerability has been resolved: most: usb: Fix use-after-free in hdm_disconnect hdm_disconnect() calls most_deregister_interface(), which eventually unregisters the MOST interface device with device_unregister(iface->dev). If that drops the last reference, the device core may call release_mdev() immediately while hdm_disconnect() is still executing. The old code also freed several mdev-owned allocations in hdm_disconnect() and then performed additional put_device() calls. Depending on refcount order, this could lead to use-after-free or double-free when release_mdev() ran (or when unregister paths also performed puts). Fix by moving the frees of mdev-owned allocations into release_mdev(), so they happen exactly once when the device is truly released, and
GHSA
GHSA-jh7w-53hp-qjqh: In the Linux kernel, the following vulnerability has been resolved:
most: usb: Fix use-after-free in hdm_disconnect
hdm_disconnect() calls most_dere
ghsa_unreviewed·2025-12-04
CVE-2025-40223 GHSA-jh7w-53hp-qjqh: In the Linux kernel, the following vulnerability has been resolved:
most: usb: Fix use-after-free in hdm_disconnect
hdm_disconnect() calls most_dere
In the Linux kernel, the following vulnerability has been resolved:
most: usb: Fix use-after-free in hdm_disconnect
hdm_disconnect() calls most_deregister_interface(), which eventually
unregisters the MOST interface device with device_unregister(iface->dev).
If that drops the last reference, the device core may call release_mdev()
immediately while hdm_disconnect() is still executing.
The old code also freed several mdev-owned allocations in
hdm_disconnect() and then performed additional put_device() calls.
Depending on refcount order, this could lead to use-after-free or
double-free when release_mdev() ran (or when unregister paths also
performed puts).
Fix by moving the frees of mdev-owned allocations into release_mdev(),
so they happen exactly once when the device is truly released,
OSV
most: usb: Fix use-after-free in hdm_disconnect
osv·2025-12-04
CVE-2025-40223 most: usb: Fix use-after-free in hdm_disconnect
most: usb: Fix use-after-free in hdm_disconnect
In the Linux kernel, the following vulnerability has been resolved:
most: usb: Fix use-after-free in hdm_disconnect
hdm_disconnect() calls most_deregister_interface(), which eventually
unregisters the MOST interface device with device_unregister(iface->dev).
If that drops the last reference, the device core may call release_mdev()
immediately while hdm_disconnect() is still executing.
The old code also freed several mdev-owned allocations in
hdm_disconnect() and then performed additional put_device() calls.
Depending on refcount order, this could lead to use-after-free or
double-free when release_mdev() ran (or when unregister paths also
performed puts).
Fix by moving the frees of mdev-owned allocations into release_mdev(),
so they happe
Ubuntu
Linux kernel (Xilinx) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 6.4
CVE-2025-68288 [MEDIUM] Linux kernel (Xilinx) vulnerabilities
Title: Linux kernel (Xilinx) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Josh Eads, Kristoffer Janke, Eduardo Vela Nava, Tavis Ormandy, and Matteo
Rizzo discovered that some AMD Zen processors did not properly verify the
signature of CPU microcode. This flaw is known as EntrySign. A privileged
attacker could possibly use this issue to cause load malicious CPU
microcode causing loss of integrity and confidentiality. (CVE-2024-36347)
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation,
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-05-07·CVSS 7.8
CVE-2025-22058 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corre
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-04-13·CVSS 7.8
CVE-2024-53114 [HIGH] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update corre
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities
vendor_ubuntu·2026-04-09·CVSS 7.8
CVE-2025-21833 [HIGH] Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update
Ubuntu
Linux kernel (Azure FIPS) vulnerabilities
vendor_ubuntu·2026-04-09·CVSS 7.8
CVE-2025-71125 [HIGH] Linux kernel (Azure FIPS) vulnerabilities
Title: Linux kernel (Azure FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269, CVE-2026-23403,
CVE-2026-23404, CVE-2026-23405, CVE-2026-23406, CVE-2026-23407,
CVE-2026-23408, CVE-2026-23409, CVE-2026-23410, CVE-2026-23411)
Several security issues were discovered in the Linux kernel.
An attacker could possibly use these to compromise the system.
This update
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2026-04-01·CVSS 7.8
CVE-2025-38129 [HIGH] Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853, CVE-2026-23268, CVE-2026-23269)
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:
- Nios II architecture;
- PowerPC architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
Ubuntu
Linux kernel (Raspberry Pi) vulnerabilities
vendor_ubuntu·2026-04-01
CVE-2025-40301 Linux kernel (Raspberry Pi) vulnerabilities
Title: Linux kernel (Raspberry Pi) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architect
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-03-25·CVSS 3.2
CVE-2025-40068 [LOW] Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
It was discovered that improper initialization of CPU cache memory could
allow a local attacker with hypervisor access to overwrite SEV-SNP guest
memory resulting in loss of data integrity. (CVE-2024-36331)
Oleksii Oleksenko, Cedric Fournet, Jana Hofmann, Boris Köpf, Stavros Volos,
and Flavien Solt discovered that
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-03-25
CVE-2025-40245 Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
-
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2026-03-23
CVE-2025-40068 Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Su
Ubuntu
Linux kernel (Real-time) vulnerabilities
vendor_ubuntu·2026-03-17
CVE-2025-40245 Linux kernel (Real-time) vulnerabilities
Title: Linux kernel (Real-time) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2026-03-16
CVE-2025-40068 Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- S
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2026-03-16
CVE-2025-40245 Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
-
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-03-16
CVE-2025-39981 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
Qualys discovered that several vulnerabilities existed in the AppArmor
Linux kernel Security Module (LSM). An unprivileged local attacker could
use these issues to load, replace, and remove arbitrary AppArmor profiles
causing denial of service, exposure of sensitive information (kernel
memory), local privilege escalation, or possibly escape a container.
(LP: #2143853)
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Spar
Ubuntu
Linux kernel (Azure) vulnerabilities
vendor_ubuntu·2026-02-24
CVE-2025-40175 Linux kernel (Azure) vulnerabilities
Title: Linux kernel (Azure) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framewor
Ubuntu
Linux kernel (Intel IoTG) vulnerabilities
vendor_ubuntu·2026-02-19·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel (Intel IoTG) vulnerabilities
Title: Linux kernel (Intel IoTG) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-19·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network d
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-17
CVE-2025-40304 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework and dr
Ubuntu
Linux kernel (OEM) vulnerabilities
vendor_ubuntu·2026-02-17
CVE-2025-68242 Linux kernel (OEM) vulnerabilities
Title: Linux kernel (OEM) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework
Ubuntu
Linux kernel (NVIDIA) vulnerabilities
vendor_ubuntu·2026-02-17·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel (NVIDIA) vulnerabilities
Title: Linux kernel (NVIDIA) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
-
Ubuntu
Linux kernel (NVIDIA Tegra IGX) vulnerabilities
vendor_ubuntu·2026-02-17·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel (NVIDIA Tegra IGX) vulnerabilities
Title: Linux kernel (NVIDIA Tegra IGX) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device d
Ubuntu
Linux kernel (AWS) vulnerabilities
vendor_ubuntu·2026-02-13·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel (AWS) vulnerabilities
Title: Linux kernel (AWS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Net
Ubuntu
Linux kernel (GCP) vulnerabilities
vendor_ubuntu·2026-02-12
CVE-2025-68242 Linux kernel (GCP) vulnerabilities
Title: Linux kernel (GCP) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework
Ubuntu
Linux kernel (NVIDIA Tegra) vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel (NVIDIA Tegra) vulnerabilities
Title: Linux kernel (NVIDIA Tegra) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drive
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-12
CVE-2025-40304 Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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;
- MIPS architecture;
- Nios II architecture;
- PA-RISC architecture;
- RISC-V architecture;
- S390 architecture;
- Sun Sparc architecture;
- x86 architecture;
- Xtensa architecture;
- Block layer subsystem;
- Cryptographic API;
- Compute Acceleration Framework;
- ACPI drivers;
- Drivers core;
- Network block device driver;
- Bluetooth drivers;
- Bus devices;
- Hardware random number generator core;
- Character device driver;
- Clock framework and drivers;
- Data acquisition framework and dr
Ubuntu
Linux kernel (FIPS) vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel (FIPS) vulnerabilities
Title: Linux kernel (FIPS) vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Ne
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40153 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network d
Ubuntu
Linux kernel vulnerabilities
vendor_ubuntu·2026-02-12·CVSS 5.5
CVE-2025-40154 [MEDIUM] Linux kernel vulnerabilities
Title: Linux kernel vulnerabilities
Summary: Several security issues were fixed in the Linux kernel.
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:
- Nios II architecture;
- Sun Sparc architecture;
- User-Mode Linux (UML);
- x86 architecture;
- Block layer subsystem;
- Cryptographic API;
- Drivers core;
- Bus devices;
- Hardware random number generator core;
- Data acquisition framework and drivers;
- CPU frequency scaling framework;
- DMA engine subsystem;
- GPU drivers;
- HW tracing;
- Input Device (Miscellaneous) drivers;
- Multiple devices driver;
- Media drivers;
- MOST (Media Oriented Systems Transport) drivers;
- MTD block device drivers;
- Network d
Microsoft
most: usb: Fix use-after-free in hdm_disconnect
vendor_msrc·2025-12-09·CVSS 7.8
CVE-2025-40223 [HIGH] most: usb: Fix use-after-free in hdm_disconnect
most: usb: Fix use-after-free in hdm_disconnect
Mariner: Mariner
Linux: Linux
Customer Action Required: Yes
Remediation: CBL-Mariner Releases
Reference: https://learn.microsoft.com/en-us/azure/azure-linux/tutorial-azure-linux-upgrade
Red Hat
kernel: most: usb: Fix use-after-free in hdm_disconnect
vendor_redhat·2025-12-04
CVE-2025-40223 kernel: most: usb: Fix use-after-free in hdm_disconnect
kernel: most: usb: Fix use-after-free in hdm_disconnect
In the Linux kernel, the following vulnerability has been resolved:
most: usb: Fix use-after-free in hdm_disconnect
hdm_disconnect() calls most_deregister_interface(), which eventually
unregisters the MOST interface device with device_unregister(iface->dev).
If that drops the last reference, the device core may call release_mdev()
immediately while hdm_disconnect() is still executing.
The old code also freed several mdev-owned allocations in
hdm_disconnect() and then performed additional put_device() calls.
Depending on refcount order, this could lead to use-after-free or
double-free when release_mdev() ran (or when unregister paths also
performed puts).
Fix by moving the frees of mdev-owned allocations into release_mdev(),
so they h
Debian
CVE-2025-40223: linux - In the Linux kernel, the following vulnerability has been resolved: most: usb: ...
vendor_debian·2025
CVE-2025-40223 CVE-2025-40223: linux - In the Linux kernel, the following vulnerability has been resolved: most: usb: ...
In the Linux kernel, the following vulnerability has been resolved: most: usb: Fix use-after-free in hdm_disconnect hdm_disconnect() calls most_deregister_interface(), which eventually unregisters the MOST interface device with device_unregister(iface->dev). If that drops the last reference, the device core may call release_mdev() immediately while hdm_disconnect() is still executing. The old code also freed several mdev-owned allocations in hdm_disconnect() and then performed additional put_device() calls. Depending on refcount order, this could lead to use-after-free or double-free when release_mdev() ran (or when unregister paths also performed puts). Fix by moving the frees of mdev-owned allocations into release_mdev(), so they happen exactly once when the device is truly released, and
No detection rules found.
No public exploits indexed.
https://git.kernel.org/stable/c/33daf469f5294b9d07c4fc98216cace9f4f34cc6https://git.kernel.org/stable/c/3a3b8e89c7201c5b3b76ac4a4069d1adde1477d6https://git.kernel.org/stable/c/4b1270902609ef0d935ed2faa2ea6d122bd148f5https://git.kernel.org/stable/c/578eb18cd111addec94c43f61cd4b4429e454809https://git.kernel.org/stable/c/5b5c478f09b1b35e7fe6fc9a1786c9bf6030e831https://git.kernel.org/stable/c/72427dc6f87523995f4e6ae35a948bb2992cabcehttps://git.kernel.org/stable/c/f93a84ffb884d761a9d4e869ba29c238711e81f1
2025-12-04
Published