CVE-2026-98445
Received
Received - Intake
XFS Filesystem Memory Allocation Failure in Linux Kernel
Vulnerability report for CVE-2026-98445, including description, CVSS score, EPSS score, affected products, exploitability, helpful resources, and attack-flow context.
Publication date: 2026-10-18
Last updated on: 2026-10-18
Assigner: kernel.org
Description
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.
CVSS Scores
EPSS Scores
| Probability: | |
| Percentile: |
Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| Linux | Linux | be408417630427984a1fddd069f30b245793234c |
| Linux | Linux | be408417630427984a1fddd069f30b245793234c |
| Linux | Linux | be408417630427984a1fddd069f30b245793234c |
| Linux | Linux | be408417630427984a1fddd069f30b245793234c |
| Linux | Linux | 6.8 |
Helpful Resources
Exploitability
CWE
KEV
| CWE ID | Description |
|---|---|
| CWE-UNKNOWN |
