CVE-2023-54264: Linux

EPSS: 0.2% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: fs/sysv: Null check to prevent null-ptr-deref bug sb_getblk(inode->i_sb, parent) return a null ptr and taking lock on that leads to the null-ptr-deref bug.

Affected products

• Linux Linux: from 2.6.19, before 4.14.322 (fixed in 4.14.322); from 4.15, before 4.19.291 (fixed in 4.19.291); from 4.20, before 5.4.253 (fixed in 5.4.253); from 5.5, before 5.10.190 (fixed in 5.10.190); from 5.11, before 5.15.126 (fixed in 5.15.126); from 5.16, before 6.1.45 (fixed in 6.1.45); …

Published 2025-12-30. Last modified 2026-06-17.