CVE-2023-54264

fs/sysv: Null check to prevent null-ptr-deref bug

N/A

Published: December 30, 2025 at 12:15 PM UTC

Updated: June 17, 2026 at 06:47 AM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

N/A

Exploit prediction

EPSS 0.2%

Description

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

2.6.19 ≤ v < 4.14.3222.6.19 ≤ v < 4.19.2912.6.19 ≤ v < 5.10.1902.6.19 ≤ v < 5.15.1262.6.19 ≤ v < 5.4.2532.6.19 ≤ v < 6.1.452.6.19 ≤ v < 6.4.102.6.19 ≤ v < 6.52.6.19e5657933863f43cc6bb76a54d659303dafaa9e58

Vendor states this is fixed in 0a44ceba77c3267f8505dda102a59367dc24caee (fixed)

Vendor states this is fixed in 1416eebaad80bdc85ad9f97f27242011b031e2a9 (fixed)

Vendor states this is fixed in 7f740bc696d4617f8ee44565e8ac0d36278a1e91 (fixed)

Vendor states this is fixed in afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635 (fixed)

Vendor states this is fixed in baa60c66a310c50785289b0ede6fdce8ec3219c7 (fixed)

Vendor states this is fixed in e28f376dd8dfcc4e880ac101184132bc08703f6e (fixed)

Vendor states this is fixed in e976988bc245ec3768cc0f76bed7d05488a7dd0f (fixed)

Vendor states this is fixed in ea2b62f305893992156a798f665847e0663c9f41 (fixed)

Vendor states this is fixed in 2.6.19 (unaffected)

Vendor states this is fixed in 4.14.322 (unaffected)

Vendor states this is fixed in 4.19.291 (unaffected)

Vendor states this is fixed in 5.10.190 (unaffected)