# CVE-2022-49829: drm/scheduler: fix fence ref counting

Status: published. Published: 2025-05-01. Updated: 2026-11-05.

In the Linux kernel, the following vulnerability has been resolved:

drm/scheduler: fix fence ref counting

We leaked dependency fences when processes were beeing killed.

Additional to that grab a reference to the last scheduled fence.

## Remediation

No remediation reported in collected sources

## Affected products and versions

- Linux / Linux: ≥ 8ee3a52e3f35e064a3bf82f21dc74ddaf9843648; < e5f4b38362df93594cb426b04979d8834122f159 (affected, git); ≥ 8ee3a52e3f35e064a3bf82f21dc74ddaf9843648; < b3af84383e7abdc5e63435817bb73a268e7c3637 (affected, git). Source: CNA: Linux
- Linux / Linux: 4.18 (affected); ≥ 0; < 4.18 (unaffected, semver); ≥ 6.0.10; ≤ 6.0.* (unaffected, semver); ≥ 6.1; ≤ * (unaffected, original_commit_for_fix). Source: CNA: Linux

## Severity and prioritization

- CISA KEV: No listing in collected sources

- EPSS: 0.17% as of 2026-11-05; percentile 6.47%

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: Not reported

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://git.kernel.org/stable/c/e5f4b38362df93594cb426b04979d8834122f159 (CNA: Linux)

- https://git.kernel.org/stable/c/b3af84383e7abdc5e63435817bb73a268e7c3637 (CNA: Linux)

## Provenance

- CNA: Linux: https://www.cve.org/CVERecord?id=CVE-2022-49829; retrieved 2026-11-05; source updated 2026-11-05

- FIRST EPSS: https://api.first.org/data/v1/epss?cve=CVE-2022-49829; retrieved 2026-11-05; source updated Not reported

Revision: a1dd25b805009c8ec562c1f786c9799f0b7da68b5dafd56729702cc245047681

Canonical: https://y2.dev/cve/CVE-2022-49829

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