PT-2026-43826 · Linux · Linux

Published 2026-05-27 · Updated 2026-05-27 · CVE-2026-45959

NVD

CVSS v3.1

7.8

High

Base vector

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

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

crypto: ccp - Fix a crash due to incorrect cleanup usage of kfree

Annotating a local pointer variable, which will be assigned with the kmalloc-family functions, with the cleanup(kfree) attribute will make the address of the local variable, rather than the address returned by kmalloc, passed to kfree directly and lead to a crash due to invalid deallocation of stack address. According to other places in the repo, the correct usage should be free(kfree). The code coincidentally compiled because the parameter type void * of kfree is compatible with the desired type struct { ... } **.

Fix

Related Identifiers

CVE-2026-45959

Affected Products

Linux

References · 4

• https://nvd.nist.gov/vuln/detail/CVE-2026-45959 · Security Note
• https://git.kernel.org/stable/c/9a3ace9b010ffd8c422c97844ae152f7c53d6b18 · Note
• https://git.kernel.org/stable/c/d5abcc33ee76bc26d58b39dc1a097e43a99dd438 · Note
• https://git.kernel.org/stable/c/90f9090e3e744a8fe3bb6fa0e61f577347728b0b · Note