All vulnerabilities
CVE-2026-97550

Linux: xfs: fix unit conversions in per_binval computation

Linux LinuxOperating systems
Open in ThreatlineRecord JSON
CVSS
NoneNot scored
ExploitationNo known exploitationNot in CISA KEV, which does not prove it is unexploitedCISA KEV
Exploit odds (EPSS)0.20%Chance of exploitation activity in the next 30 days, higher than 9% of CVEs. Scored 23 Oct 2026FIRST EPSS
Fixed in05cff7c2b79f76c7cfe90613a60e16aaaa051ef7Fixed versionCVE List
Published25 Sep 2026Updated 19 Oct 2026CVE List

What fixes it

  • 05cff7c2b79f76c7cfe90613a60e16aaaa051ef7LinuxCVE List

A fixed version on one release line is not the upgrade target for every line. Check your exact version and any vendor backports.

Description

In the Linux kernel, the following vulnerability has been resolved:

xfs: fix unit conversions in per_binval computation

LOLLM noticed that we're doing the unit conversion in the per_binval computation backwards -- xfs_buf_inval_log_space's second parameter is supposed to be in bytes, but max_binval is in units of fsblocks. Hence the conversion should be FSB -> B, not the other way around.

Text from CVE List

Affected versions 8

  • Linuxaffected: b2311ec6778fcde9d40cd9e22899f8bd594d8465 before b5089a328acc83fe2f23127a79397a0bfd9ebc33CVE List
  • Linuxaffected: b2311ec6778fcde9d40cd9e22899f8bd594d8465 before cfeba3bdf4dfa405e29f4ee13a20e9063fd0b7efCVE List
  • Linuxaffected: b2311ec6778fcde9d40cd9e22899f8bd594d8465 before 05cff7c2b79f76c7cfe90613a60e16aaaa051ef7CVE List
  • Linuxaffected: 6.18CVE List
  • Linuxunaffected: all versions before 6.18CVE List
  • Linuxunaffected: 6.18.53 through 6.18.*CVE List
  • Linuxunaffected: 7.2.7 through 7.2.*CVE List
  • Linuxunaffected: 7.3CVE List

References 3