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CVE-2026-63853

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/vcn: set no_user_fence for VCN v4.0 enc ring VCN encoder and decoder rings do not support 64-bit user fence writes, reject CS submissions with user fences. (cherry picked from commit fd852c048b46f9825e904a4f3f4538fe9d8827d9)
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:a2cddddb094597c315861f83cb8b6a5cc5737e06156c90775d3f0d470c9052c3
Known exploited
Not asserted
Disputed
No
Stale source
No
Conflicts
1

Preserved source conflicts

No provider value was silently selected as the winner.

affected · 2 assertions

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.19"},{"lessThan":"5.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commi…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5517f8fd475fed9e1e1d7594507df5d60d368ad9b4b27182801236d83cd21679 · sha256:a52dfd6d05d1e795… · /containers/cna/affected/1

{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1286b6872de0aee1feeeaa6dbac86369806de9a5","status":"affected","version":"8da1170a16e4d4b49fa07d1f75ad480847ff7eca","versionType":"git"},{"lessThan":"6bdd2ed6458d35c368fbe9550a4d7f342abd3a92","status":"affected","version":"8da1170a16e4d4b49fa07d1f75ad480847ff7eca","versionType":"git"},{"lessThan":"51f694221047c84fa185be98210eb2c354ffb8c6","status":"affected","version":"8da1170a…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5517f8fd475fed9e1e1d7594507df5d60d368ad9b4b27182801236d83cd21679 · sha256:a52dfd6d05d1e795… · /containers/cna/affected/0

Affected products and versions

2 source assertions
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.19"},{"lessThan":"5.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.33","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commi…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5517f8fd475fed9e1e1d7594507df5d60d368ad9b4b27182801236d83cd21679 · sha256:a52dfd6d05d1e795… · /containers/cna/affected/1
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/amd/amdgpu/vcn_v4_0.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"1286b6872de0aee1feeeaa6dbac86369806de9a5","status":"affected","version":"8da1170a16e4d4b49fa07d1f75ad480847ff7eca","versionType":"git"},{"lessThan":"6bdd2ed6458d35c368fbe9550a4d7f342abd3a92","status":"affected","version":"8da1170a16e4d4b49fa07d1f75ad480847ff7eca","versionType":"git"},{"lessThan":"51f694221047c84fa185be98210eb2c354ffb8c6","status":"affected","version":"8da1170a…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:5517f8fd475fed9e1e1d7594507df5d60d368ad9b4b27182801236d83cd21679 · sha256:a52dfd6d05d1e795… · /containers/cna/affected/0

Provider-owned CVSS observations

1 source assertion
{"metric":{"baseScore":7.8,"baseSeverity":"HIGH","vectorString":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","version":"3.1"},"metric_type":"cvssV3_1"}
  • cve_program_cvelist_v5cvss
    urn:baitaphish:normalized-source-record:v2:5517f8fd475fed9e1e1d7594507df5d60d368ad9b4b27182801236d83cd21679 · sha256:a52dfd6d05d1e795… · /containers/cna/metrics/0/cvssV3_1

Source references

3 source assertions
{"url":"https://git.kernel.org/stable/c/1286b6872de0aee1feeeaa6dbac86369806de9a5"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5517f8fd475fed9e1e1d7594507df5d60d368ad9b4b27182801236d83cd21679 · sha256:a52dfd6d05d1e795… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/51f694221047c84fa185be98210eb2c354ffb8c6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5517f8fd475fed9e1e1d7594507df5d60d368ad9b4b27182801236d83cd21679 · sha256:a52dfd6d05d1e795… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/6bdd2ed6458d35c368fbe9550a4d7f342abd3a92"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:5517f8fd475fed9e1e1d7594507df5d60d368ad9b4b27182801236d83cd21679 · sha256:a52dfd6d05d1e795… · /containers/cna/references/1

Attribution and limitations

  • CVE Program CVEList V5: Reproduce the MITRE copyright designation and CVE license in copies. Source →

Provider severity values are preserved separately. Baitaphish does not convert them into a risk rating, infer affected products, or treat EPSS as observed exploitation.

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