Incorrect calculation in Linux kernel - CVE-2026-97550
Published: October 15, 2026
Vulnerability identifier: #VU155947
CSH Severity: Low
CVSS v4: 0 [CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:N/SC:N/SI:N/SA:N]
CVE-ID: CVE-2026-97550
CWE-ID: CWE-682
Exploitation vector: Remote access
Exploit availability:
No public exploit available
Vulnerability details
The vulnerability allows a local user to cause incorrect accounting of buffer invalidation log space.
The vulnerability exists due to an incorrect unit conversion in the XFS per_binval computation when calculating buffer invalidation overhead. A local user can trigger the affected calculations to cause incorrect accounting of buffer invalidation log space.
The second parameter of xfs_buf_inval_log_space expects bytes, but max_binval is expressed in filesystem blocks.
Affected software
Linux kernel
How to mitigate CVE-2026-97550
Install security update from vendor's repository.
Linux kernel - update to 7.0 rc3