CVE-2026-45959

Last refreshed2026-10-17

Status: UPDATED | Advisory ID: CVE-2026-45959

Key Details

CVE	CVE-2026-45959
CVSS Score / Version	7.8 (High) / CVSS v3.1
Updated	2026-10-16
CVSS Vector	`CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`
CVSS Prose	attack vector is local; attack complexity is low; privileges required is low; user interaction is none; scope is unchanged; confidentiality impact is high; integrity impact is high; availability impact is high.
Affected products	Linux Kernel
Classified as	CWE-476 (NULL Pointer Dereference)

Vendor	Product	Affected Versions	Patch Status
Linux	Linux Kernel

Vendor

Product

Affected Versions

Patch Status

Linux

Linux Kernel

Subsystems	OT Supporting Infrastructure
Sectors	All Sectors

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 { ... } **`. (NVD)

Monitor Linux's web page for any future patch releases.

Source	Reference
NVD	https://nvd.nist.gov/vuln/detail/CVE-2026-45959
CVE	https://www.cve.org/CVERecord?id=CVE-2026-45959

Source

Reference

NVD

CVE