# CVE-2026-98444: xfs: drop dquot flush lock when we can't find a buffer to flush

CVE-2026-98444 is fixed in linux on 1 platform by DEBIAN-CVE-2026-98444 (version 7.2.9-1), released October 19, 2026. It is not reported as exploited. Patch Radar priority: Routine.

- Web page: https://patchblox.com/security/cve/CVE-2026-98444
- Priority: Routine
- CVSS: n/a
- EPSS: 0.0016
- CISA KEV: not listed
- Exploited (vendor report): no
- Publicly disclosed: no
- Published: Oct 18, 2026
- Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-98444

## Description

In the Linux kernel, the following vulnerability has been resolved:  xfs: drop dquot flush lock when we can't find a buffer to flush  LOLLM noticed that xfs_qm_flush_one fails to drop the dquot flush lock if it can't grab the buffer associated with the dquot.  Since there's no buffer, nobody else is going to drop the dqflock, so we need to do it ourselves.

## Where it's fixed

| Platform | Product | Fixed in | Fix | Released |
|---|---|---|---|---|
| Linux | linux Debian 14 | 7.2.9-1 | [DEBIAN-CVE-2026-98444](https://patchblox.com/security/data/fix/linux/debian-cve-2026-98444.md) | Oct 19, 2026 |

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Data as of 2026-11-09T01:18:40Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo

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