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CVE-2026-63961

In the Linux kernel, the following vulnerability has been resolved: usb: typec: altmodes/displayport: validate count before reading Status Update VDO A broken/malicious device can send the incorrect count for a status update VDO, which will cause the kernel to read uninitialized stack data and send it off elsewhere. Fix this up by correctly verifying the count for the update object.
Lifecycle PUBLISHED1 preserved revisionFact urn:baitaphish:canonical-cve-fact-revision:v2:23dc62491072b5edf898ccd479b83628a51753512112f087820054cf643c65e4
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/usb/typec/altmodes/displayport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"74aabe9ea30fdfba924fce9594e6aa69a596a4bb","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"dd7118c010f324497c275e8fd7a35c9baaa2a00f","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"6ffdbcd7a02f3af8fff9b6519830369f574ed44c","status":"affected","version":"0e3bb…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/affected/0

{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/typec/altmodes/displayport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":…

  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/affected/1

Affected products and versions

2 source assertions
{"defaultStatus":"unaffected","product":"Linux","programFiles":["drivers/usb/typec/altmodes/displayport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"74aabe9ea30fdfba924fce9594e6aa69a596a4bb","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"dd7118c010f324497c275e8fd7a35c9baaa2a00f","status":"affected","version":"0e3bb7d6894d9b6e67d6382bb03a46a1dc989588","versionType":"git"},{"lessThan":"6ffdbcd7a02f3af8fff9b6519830369f574ed44c","status":"affected","version":"0e3bb…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/affected/0
{"defaultStatus":"affected","product":"Linux","programFiles":["drivers/usb/typec/altmodes/displayport.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"4.19"},{"lessThan":"4.19","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"5.10.*","status":"unaffected","version":"5.10.259","versionType":"semver"},{"lessThanOrEqual":"5.15.*","status":"unaffected","version":"5.15.210","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.176","versionType":…
  • cve_program_cvelist_v5affected
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/affected/1

Source references

8 source assertions
{"url":"https://git.kernel.org/stable/c/64bd6ccc5799f8473d1f37d4d8f53093dfec5c02"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/references/4
{"url":"https://git.kernel.org/stable/c/6ffdbcd7a02f3af8fff9b6519830369f574ed44c"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/references/2
{"url":"https://git.kernel.org/stable/c/70e7045849e954e56dcbf441b6330e66bc996306"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/references/3
{"url":"https://git.kernel.org/stable/c/74aabe9ea30fdfba924fce9594e6aa69a596a4bb"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/references/0
{"url":"https://git.kernel.org/stable/c/77a759ec30bc5fb0dd9c867b711d0acfed6c7faa"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/references/6
{"url":"https://git.kernel.org/stable/c/8a18f896e667df491331371b55d4ad644dc51d60"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/references/7
{"url":"https://git.kernel.org/stable/c/b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /containers/cna/references/5
{"url":"https://git.kernel.org/stable/c/dd7118c010f324497c275e8fd7a35c9baaa2a00f"}
  • cve_program_cvelist_v5reference
    urn:baitaphish:normalized-source-record:v2:ae380d284c07941b71b7c9d487589b9d433810331d87b47d6f84d2c6dc81bce0 · sha256:aa2bf4c2db8c0171… · /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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