CVE-2023-54264
fs/sysv: Null check to prevent null-ptr-deref bug
Vexday Risk Score
3Low
SSVC decision (CISA)
Track
No exploitation signal → monitor
CVSS —EPSS 0.2%KEV nãoPoC —Nuclei —Metasploit —Patch —
Lifecycle
30 Dec 2025Published on NVD
Recommendation: Monitor — no exploitation signal at the moment.
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 · LinuxReferences
https://git.kernel.org/stable/c/0a44ceba77c3267f8505dda102a59367dc24caeehttps://git.kernel.org/stable/c/1416eebaad80bdc85ad9f97f27242011b031e2a9https://git.kernel.org/stable/c/7f740bc696d4617f8ee44565e8ac0d36278a1e91https://git.kernel.org/stable/c/afd9a31b5aa4b3747f382d44a7b03b7b5d0b7635https://git.kernel.org/stable/c/baa60c66a310c50785289b0ede6fdce8ec3219c7https://git.kernel.org/stable/c/e28f376dd8dfcc4e880ac101184132bc08703f6ehttps://git.kernel.org/stable/c/e976988bc245ec3768cc0f76bed7d05488a7dd0fhttps://git.kernel.org/stable/c/ea2b62f305893992156a798f665847e0663c9f41