CVEvulnerability
CVE-2026-98445
- Status
- Received
- Published
- 2026-10-18
- Last modified
- 2026-10-19
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
Description
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.
References
- https://git.kernel.org/stable/c/0e0d3372a84029da1768c7a4c4601484af5b58a2 git.kernel.org
- https://git.kernel.org/stable/c/3380151cf0ce8ad0c1d356fed51e4b69e1d28e50 git.kernel.org
- https://git.kernel.org/stable/c/ab1c416d2377cdc16123ef521aac4da1c468c3d4 git.kernel.org
- https://git.kernel.org/stable/c/b15c79fca28060fd9c7e77f2c3ebc4ba023974e8 git.kernel.org