CVE-2026-23096

MEDIUM

Linux Kernel - Use-After-Free in uacce cdev Handling

Title source: llm

Description

In the Linux kernel, the following vulnerability has been resolved: uacce: fix cdev handling in the cleanup path When cdev_device_add fails, it internally releases the cdev memory, and if cdev_device_del is then executed, it will cause a hang error. To fix it, we check the return value of cdev_device_add() and clear uacce->cdev to avoid calling cdev_device_del in the uacce_remove.

References (7)

Core 7

Core References

Patch

https://git.kernel.org/stable/c/c94c7188d325bc5137d447d67a2f18f7d4f2f4a3

Patch

https://git.kernel.org/stable/c/1bc3e51367c420e6db31f41efa874c7a8e12194a

Patch

https://git.kernel.org/stable/c/819d647406200d0e83e56fd2df8f451b11290559

Patch

https://git.kernel.org/stable/c/d9031575a2f8aabc53af3025dd79af313a2e046b

Patch

https://git.kernel.org/stable/c/98d67a1bd6caddd0a8b8c82a0b925742cf500936

Patch

https://git.kernel.org/stable/c/bd2393ed7712513e7e2dbcb6e21464a67ff9e702

Patch

https://git.kernel.org/stable/c/a3bece3678f6c88db1f44c602b2a63e84b4040ac

Scores

CVSS v3 5.5

EPSS 0.0002

EPSS Percentile 4.8%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

Status published

Products (24)

linux/Kernel 5.11.0 - 5.15.199linux

linux/Kernel 5.16.0 - 6.1.162linux

linux/Kernel 5.7.0 - 5.10.249linux

linux/Kernel 6.13.0 - 6.18.8linux

linux/Kernel 6.2.0 - 6.6.122linux

linux/Kernel 6.7.0 - 6.12.68linux

Linux/Linux < 5.7

Linux/Linux 015d239ac0142ad0e26567fd890ef8d171f13709 - 1bc3e51367c420e6db31f41efa874c7a8e12194a

Linux/Linux 015d239ac0142ad0e26567fd890ef8d171f13709 - 819d647406200d0e83e56fd2df8f451b11290559

Linux/Linux 015d239ac0142ad0e26567fd890ef8d171f13709 - 98d67a1bd6caddd0a8b8c82a0b925742cf500936

... and 14 more

Published Feb 04, 2026

Tracked Since Feb 18, 2026