ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces
Summary
| CVE | CVE-2026-43436 |
|---|---|
| State | PUBLISHED |
| Assigner | Linux |
| Source Priority | CVE Program / NVD first with legacy fallback |
| Published | 2026-05-08 15:16:55 UTC |
| Updated | 2026-05-12 14:10:27 UTC |
| Description | In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an endpoint in the parsed interface in scarlett2_find_fc_interface(), as reported by fuzzer. For avoiding the NULL dereference, just add the sanity check of bNumEndpoints and skip the invalid interface. |
Risk And Classification
EPSS: 0.000280000 probability, percentile 0.080650000 (date 2026-05-12)
Vendor Declared Affected Products
| Source | Vendor | Product | Version | Platforms |
|---|---|---|---|---|
| CNA | Linux | Linux | affected 6c0a2078134aba6a77291554035304df9e16b85c b014cc945baba75816cda0cf8934be87c9ed4947 git | Not specified |
| CNA | Linux | Linux | affected 6c0a2078134aba6a77291554035304df9e16b85c c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba git | Not specified |
| CNA | Linux | Linux | affected 6c0a2078134aba6a77291554035304df9e16b85c b267255c15d2a5b90c4e926146aa155e5161e264 git | Not specified |
| CNA | Linux | Linux | affected 6c0a2078134aba6a77291554035304df9e16b85c 3d542cf3c4c854cdf5d58049771f68926b9eb2b9 git | Not specified |
| CNA | Linux | Linux | affected 6c0a2078134aba6a77291554035304df9e16b85c 3d4f23885e4b90347c9a1d779af6e79a99b5172a git | Not specified |
| CNA | Linux | Linux | affected 6c0a2078134aba6a77291554035304df9e16b85c df1d8abf36ca3681c21a6809eaa9a1e01ef897a6 git | Not specified |
| CNA | Linux | Linux | affected 5.14 | Not specified |
| CNA | Linux | Linux | unaffected 5.14 semver | Not specified |
| CNA | Linux | Linux | unaffected 6.1.167 6.1.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.6.130 6.6.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.12.78 6.12.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.18.19 6.18.* semver | Not specified |
| CNA | Linux | Linux | unaffected 6.19.9 6.19.* semver | Not specified |
| CNA | Linux | Linux | unaffected 7.0 * original_commit_for_fix | Not specified |
References
| Reference | Source | Link | Tags |
|---|---|---|---|
| git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172a | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264 | 416baaa9-dc9f-4396-8d5f-8c081fb06d67 | git.kernel.org | |
| git.kernel.org/stable/c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6 | 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.