CVE-2022-50074

MEDIUM

Linux Kernel < 4.19.256 - Memory Leak

Title source: rule

Description

In the Linux kernel, the following vulnerability has been resolved: apparmor: Fix memleak in aa_simple_write_to_buffer() When copy_from_user failed, the memory is freed by kvfree. however the management struct and data blob are allocated independently, so only kvfree(data) cause a memleak issue here. Use aa_put_loaddata(data) to fix this issue.

References (6)

[Patch] https://git.kernel.org/stable/c/417ea9fe972d2654a268ad66e89c8fcae67017c3

[Patch] https://git.kernel.org/stable/c/6500eb3a48ac221051b1791818a1ac74744ef617

[Patch] https://git.kernel.org/stable/c/6583edbf459de2e06b9759f264c0ae27e452b97a

[Patch] https://git.kernel.org/stable/c/7db182a2ebeefded86fea542fcc5d6a68bb77f58

[Patch] https://git.kernel.org/stable/c/8aab4295582eb397a125d2788b829fa62b88dbf7

[Patch] https://git.kernel.org/stable/c/bf7ebebce2c25071c719fd8a2f1307e0c243c2d7

Scores

CVSS v3 5.5

EPSS 0.0002

EPSS Percentile 5.4%

Attack Vector LOCAL

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

Classification

CWE

CWE-401

Status published

Affected Products (6)

linux/linux_kernel < 4.19.256

linux/Kernel < 4.19.256linux

linux/Kernel < 5.4.211linux

linux/Kernel < 5.10.138linux

linux/Kernel < 5.15.63linux

linux/Kernel < 5.19.4linux

Timeline

Published Jun 18, 2025

Tracked Since Feb 18, 2026