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CVE-2026-53285

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Wrap DCN32 phantom-plane allocation in DC_RUN_WITH_PREEMPTION_ENABLED [Why] dcn32_validate_bandwidth() wraps dcn32_internal_validate_bw() with DC_FP_START()/DC_FP_END(). In x86 non-RT, DC_FP_START takes fpregs_lock(), which disables local softirqs. The DML1 path through dcn32_enable_phantom_plane() calls kvzalloc() to allocate ~335 KiB for dc_plane_state. This triggers the vmalloc path, which calls BUG_ON(in_
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:42f37aed0a1955221158d5e7573a9892f20b0687ae1a9a1f358f940778a0865d
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":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"30bb2ec6695d62f63db4aa6179c4626834ed0cd6","status":"affected","version":"235c67634230b0f9ad8c0185272fed36c892b1c4","versionType":"git"},{"lessThan":"183182235f6d53bac62c6c39014738a54a68dfa6","status":"affected","version":"235c67634230b0f9ad8c0185272fed36c892b1c4","versionType":"git"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:79cc2632214819a2c90fafc7b626bf3ec97c0e99ae1d37ca18f18ae0bf64358f · sha256:6ea04265d58bf520… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.0"},{"lessThan":"6.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:79cc2632214819a2c90fafc7b626bf3ec97c0e99ae1d37ca18f18ae0bf64358f · sha256:6ea04265d58bf520… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"30bb2ec6695d62f63db4aa6179c4626834ed0cd6","status":"affected","version":"235c67634230b0f9ad8c0185272fed36c892b1c4","versionType":"git"},{"lessThan":"183182235f6d53bac62c6c39014738a54a68dfa6","status":"affected","version":"235c67634230b0f9ad8c0185272fed36c892b1c4","versionType":"git"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:79cc2632214819a2c90fafc7b626bf3ec97c0e99ae1d37ca18f18ae0bf64358f · sha256:6ea04265d58bf520… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/gpu/drm/amd/display/dc/resource/dcn32/dcn32_resource.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.0"},{"lessThan":"6.0","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.10","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:79cc2632214819a2c90fafc7b626bf3ec97c0e99ae1d37ca18f18ae0bf64358f · sha256:6ea04265d58bf520… · /containers/cna/affected/1

Source references

2 source assertions
{"url":"https://git.kernel.org/stable/c/183182235f6d53bac62c6c39014738a54a68dfa6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:79cc2632214819a2c90fafc7b626bf3ec97c0e99ae1d37ca18f18ae0bf64358f · sha256:6ea04265d58bf520… · /containers/cna/references/1
{"url":"https://git.kernel.org/stable/c/30bb2ec6695d62f63db4aa6179c4626834ed0cd6"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:79cc2632214819a2c90fafc7b626bf3ec97c0e99ae1d37ca18f18ae0bf64358f · sha256:6ea04265d58bf520… · /containers/cna/references/0

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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