Live › vulnerability › CVE-2026-98445
Go to dashboardIn the Linux kernel's XFS filesystem, an out-of-memory failure during online repair could leak blocks that were allocated for a new btree, and could force the filesystem to go down. The fix makes that small allocation non-failing, so the leak and the forced shutdown no longer occur.
Summary written from the sources below. Check the originals before acting.
First seen by InfraStack 2026-10-23 21:57 UTC. All times on this page are UTC.
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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.
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