CVE-2026-97550: xfs: fix unit conversions in per_binval computation
In the Linux kernel, the following vulnerability has been resolved:
xfs: fix unit conversions in perbinval computation
LOLLM noticed that we're doing the unit conversion in the perbinval computation backwards -- xfsbufinvallogspace's second parameter is supposed to be in bytes, but maxbinval is in units of fsblocks. Hence the conversion should be FSB -> B, not the other way around.
Affected Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
ubuntu/linux-hwe-7.0to a version that resolves this vulnerability.Fixed in 7.0.0-42.42~24.04.1 - Upgrade
Upgrade
ubuntu/linux-riscv-7.0to a version that resolves this vulnerability.Fixed in 7.0.0-42.42.1~24.04.1 - Upgrade
Upgrade
ubuntu/linuxto a version that resolves this vulnerability.Fixed in 7.0.0-42.42 - Upgrade
Upgrade
ubuntu/linux-awsto a version that resolves this vulnerability.Fixed in 7.0.0-1016.17 - Upgrade
Upgrade
ubuntu/linux-gcpto a version that resolves this vulnerability.Fixed in 7.0.0-1016.18 - Upgrade
Upgrade
ubuntu/linux-ibmto a version that resolves this vulnerability.Fixed in 7.0.0-1017.17 - Upgrade
Upgrade
ubuntu/linux-oem-7.0to a version that resolves this vulnerability.Fixed in 7.0.0-1017.17 - Upgrade
Upgrade
ubuntu/linux-oracleto a version that resolves this vulnerability.Fixed in 7.0.0-1015.16 - Upgrade
Upgrade
ubuntu/linux-riscvto a version that resolves this vulnerability.Fixed in 7.0.0-42.42.1
Event History
Frequently Asked Questions
Which systems should be assessed first?
Systems running the Linux kernel with XFS filesystems should be prioritized, because the resolved issue is in XFS per_binval computation.
Does the available information identify affected kernel versions or a workaround?
No affected version range, configuration conditions, or temporary mitigation is provided. The references list stable-kernel commits that can be used to determine whether a kernel contains the fix.