CVE-2022-50140

MEDIUM

Linux Kernel < 4.14.291 - Memory Leak

Title source: rule

Description

In the Linux kernel, the following vulnerability has been resolved: memstick/ms_block: Fix a memory leak 'erased_blocks_bitmap' is never freed. As it is allocated at the same time as 'used_blocks_bitmap', it is likely that it should be freed also at the same time. Add the corresponding bitmap_free() in msb_data_clear().

References (8)

[Patch] https://git.kernel.org/stable/c/16e07966638717416abf45393d6a80a5a1034429

[Patch] https://git.kernel.org/stable/c/37958980eb4cd71ae594ace093c11b6a91e165e8

[Patch] https://git.kernel.org/stable/c/39be95d1ff7b44c1e969af72ba9da7332dfcc1da

[Patch] https://git.kernel.org/stable/c/54eb7a55be6779c4d0c25eaf5056498a28595049

[Patch] https://git.kernel.org/stable/c/9260a154b3b5e387dbceec7c0ac441470646bc6f

[Patch] https://git.kernel.org/stable/c/961d7d12080fe70847f944d656e36cd0dd0214ba

[Patch] https://git.kernel.org/stable/c/9d8b911fe3c3ed788c66edba7c90e32a4a7a5f53

[Patch] https://git.kernel.org/stable/c/efd675246aec045507b9425c67b548cc2d782d8f

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 (8)

linux/linux_kernel < 4.14.291

linux/Kernel < 4.14.291linux

linux/Kernel < 4.19.256linux

linux/Kernel < 5.4.211linux

linux/Kernel < 5.10.137linux

linux/Kernel < 5.15.61linux

linux/Kernel < 5.18.18linux

linux/Kernel < 5.19.2linux

Timeline

Published Jun 18, 2025

Tracked Since Feb 18, 2026