CVE-2023-54264
Unknown
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.
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedDec 30, 2025
First seenDec 30, 2025
How to fix
Update
- Linux Linuxe976988bc245ec3768cc0f76bed7d05488a7dd0f, baa60c66a310c50785289b0ede6fdce8ec3219c7, 0a44ceba77c3267f8505dda102a59367dc24caee, 7f740bc696d4617f8ee44565e8ac0d36278a1e91, afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635, 1416eebaad80bdc85ad9f97f27242011b031e2a9, e28f376dd8dfcc4e880ac101184132bc08703f6e, ea2b62f305893992156a798f665847e0663c9f41 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | e5657933863f43cc6bb76a54d659303dafaa9e58 ≤ v < e976988bc245ec3768cc0f76bed7d05488a7dd0f, e5657933863f43cc6bb76a54d659303dafaa9e58 ≤ v < baa60c66a310c50785289b0ede6fdce8ec3219c7, e5657933863f43cc6bb76a54d659303dafaa9e58 ≤ v < 0a44ceba77c3267f8505dda102a59367dc24caee, e5657933863f43cc6bb76a54d659303dafaa9e58 ≤ v < 7f740bc696d4617f8ee44565e8ac0d36278a1e91, e5657933863f43cc6bb76a54d659303dafaa9e58 ≤ v < afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635, e5657933863f43cc6bb76a54d659303dafaa9e58 ≤ v < 1416eebaad80bdc85ad9f97f27242011b031e2a9, e5657933863f43cc6bb76a54d659303dafaa9e58 ≤ v < e28f376dd8dfcc4e880ac101184132bc08703f6e, e5657933863f43cc6bb76a54d659303dafaa9e58 ≤ v < ea2b62f305893992156a798f665847e0663c9f41, 2.6.19 | e976988bc245ec3768cc0f76bed7d05488a7dd0f, baa60c66a310c50785289b0ede6fdce8ec3219c7, 0a44ceba77c3267f8505dda102a59367dc24caee, 7f740bc696d4617f8ee44565e8ac0d36278a1e91, afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635, 1416eebaad80bdc85ad9f97f27242011b031e2a9, e28f376dd8dfcc4e880ac101184132bc08703f6e, ea2b62f305893992156a798f665847e0663c9f41 |
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