usb: typec: altmodes/displayport: validate count before reading Status Update VDO
Summary
| CVE | CVE-2026-63961 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-07-19 16:17:15 UTC |
| Updated | 2026-07-20 07:16:41 UTC |
| Description | 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. |
Risk And Classification
EPSS: 0.002100000 probability, percentile 0.113690000 (date 2026-07-20)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 74aabe9ea30fdfba924fce9594e6aa69a596a4bb git | Not specified |
| CNA | Linux | Linux | affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 dd7118c010f324497c275e8fd7a35c9baaa2a00f git | Not specified |
| CNA | Linux | Linux | affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 6ffdbcd7a02f3af8fff9b6519830369f574ed44c git | Not specified |
| CNA | Linux | Linux | affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 70e7045849e954e56dcbf441b6330e66bc996306 git | Not specified |
| CNA | Linux | Linux | affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 64bd6ccc5799f8473d1f37d4d8f53093dfec5c02 git | Not specified |
| CNA | Linux | Linux | affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b git | Not specified |
| CNA | Linux | Linux | affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 77a759ec30bc5fb0dd9c867b711d0acfed6c7faa git | Not specified |
| CNA | Linux | Linux | affected 0e3bb7d6894d9b6e67d6382bb03a46a1dc989588 8a18f896e667df491331371b55d4ad644dc51d60 git | Not specified |
| CNA | Linux | Linux | affected 4.19 | Not specified |
| CNA | Linux | Linux | unaffected 4.19 semver | Not specified |
| CNA | Linux | Linux | unaffected 5.10.259 5.10.* semver | Not specified |
| CNA | Linux | Linux | unaffected 5.15.210 5.15.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.176 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.143 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.93 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.35 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0.12 7.0.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.1 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/74aabe9ea30fdfba924fce9594e6aa69a596a4bb | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/77a759ec30bc5fb0dd9c867b711d0acfed6c7faa | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/8a18f896e667df491331371b55d4ad644dc51d60 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b10eff5abe6aa2a5af10ed17bddff76e3b6e6b9b | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/70e7045849e954e56dcbf441b6330e66bc996306 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/6ffdbcd7a02f3af8fff9b6519830369f574ed44c | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/dd7118c010f324497c275e8fd7a35c9baaa2a00f | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/64bd6ccc5799f8473d1f37d4d8f53093dfec5c02 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| CVE Program record | CVE.ORG | www.cve.org | canonical |
| NVD vulnerability detail | NVD | nvd.nist.gov | canonical, analysis |
No vendor comments have been submitted for this CVE.
There are currently no legacy QID mappings associated with this CVE.