CVE-2022-50402

MEDIUM

Linux Kernel < 4.19.270 - NULL Pointer Dereference

Title source: rule

Description

In the Linux kernel, the following vulnerability has been resolved: drivers/md/md-bitmap: check the return value of md_bitmap_get_counter() Check the return value of md_bitmap_get_counter() in case it returns NULL pointer, which will result in a null pointer dereference. v2: update the check to include other dereference

References (7)

[Patch] https://git.kernel.org/stable/c/100caacfa0ed26e061954c90cdc835d42f709536

[Patch] https://git.kernel.org/stable/c/21e9aac9a74d30907d44bae0d24c036cb3819406

[Patch] https://git.kernel.org/stable/c/3bd548e5b819b8c0f2c9085de775c5c7bff9052f

[Patch] https://git.kernel.org/stable/c/5d8d046f3dba939e74e2414f009df426700430ed

[Patch] https://git.kernel.org/stable/c/99bef41f8e8d1d52b5cb34f2f193f1346192752b

[Patch] https://git.kernel.org/stable/c/b621d17fe8b079574c773800148fb86907f3445d

[Patch] https://git.kernel.org/stable/c/ff3b7e12bc9f50de05c9d82b5b79e23e5be888f1

Scores

CVSS v3 5.5

EPSS 0.0001

EPSS Percentile 2.8%

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-476

Status published

Affected Products (7)

linux/linux_kernel < 4.19.270

linux/Kernel < 4.19.270linux

linux/Kernel < 5.4.229linux

linux/Kernel < 5.10.163linux

linux/Kernel < 5.15.86linux

linux/Kernel < 6.0.16linux

linux/Kernel < 6.1.2linux

Timeline

Published Sep 18, 2025

Tracked Since Feb 18, 2026