Bug 2541292 (CVE-2026-97550) - CVE-2026-97550 kernel: xfs: fix unit conversions in per_binval computation
Summary: CVE-2026-97550 kernel: xfs: fix unit conversions in per_binval computation
Keywords:
Status: NEW
Alias: CVE-2026-97550
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-25 11:15 UTC by OSIDB Bzimport
Modified: 2026-11-06 17:01 UTC (History)
17 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-25 11:15:34 UTC 
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.
Comment 1 gkamathe 2026-09-28 23:16:02 UTC 
Upstream advisory:
https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97550.mbox
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