CVE-2026-98445
In the Linux kernel, the following vulnerability has been resolved: xfs: don't let memory failures leak blocks and kill repairs LOLLM complains that a memory allocation failure in xrep_newbt_add_blocks results in online repair leaking blocks that were previously allocated to write a new btree, but the problem is worse than that -- a limitation of the codebase is that the callers cannot undo the transaction /and/ return the error -- either you undo all changes and commit the transaction, or you error out and the filesystem goes down. However, the new btree space reservation object isn't that big (~48 bytes). Let's just do a NOFAIL allocation and the problem goes away.
Affected versions
Linux kernel versions
6.8
and later are affected. Fixed in
6.12.113,
6.18.56,
7.2.9,
7.3
and their respective stable series.
References
4 totalFrequently asked questions
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What is CVE-2026-98445?
CVE-2026-98445 is a unscored severity Linux kernel vulnerability . It affects Linux kernel versions from 6.8 onward and has been patched in 6.12.113, 6.18.56, 7.2.9 and others. CVE-2026-98445 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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Is there a patch available for CVE-2026-98445?
Yes. CVE-2026-98445 has been patched. Fixed versions include 6.12.113, 6.18.56, 7.2.9 and others. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2026-98445 actively exploited?
No. CVE-2026-98445 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.