CVE-2022-50402 — NULL Pointer Dereference in Linux

CWE-476 — NULL Pointer Dereference5 documents5 sources
Severity
5.5MEDIUMNVD
EPSS
0.0%
top 95.77%
CISA KEV
Not in KEV
Exploit
No known exploits
Affected products
3
LinuxLinux KernelDebian Linux
Timeline
PublishedSep 18

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

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:HExploitability: 1.8 | Impact: 3.6

Affected Packages4 packages

▶NVDlinux/linux_kernel3.5 — 4.19.270+5
▶Debianlinux/linux_kernel< 5.10.178-1+3
▶CVEListV5linux/linuxd60b479d177a5735b6b4db6ee5280ef6653f50e7 — 21e9aac9a74d30907d44bae0d24c036cb3819406+7
▶debiandebian/linux< linux 6.1.4-1 (bookworm)

Patches

Patch: git.kernel.org ↗Patch: git.kernel.org ↗Patch: git.kernel.org ↗

🔴Vulnerability Details

2
OSV
CVE-2022-50402: 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↗2025-09-18
▶
GHSA
GHSA-64qw-h683-jg2m: In the Linux kernel, the following vulnerability has been resolved: drivers/md/md-bitmap: check the return value of md_bitmap_get_counter() Check th↗2025-09-18
▶

📋Vendor Advisories

2
Red Hat
kernel: drivers/md/md-bitmap: check the return value of md_bitmap_get_counter()↗2025-09-18
▶
Debian
CVE-2022-50402: linux - In the Linux kernel, the following vulnerability has been resolved: drivers/md/...↗2022
▶
CVE-2022-50402 — NULL Pointer Dereference in Linux | cvebase