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.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
Linux Linux unaffected
Version Status Constraints
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < b014cc945baba75816cda0cf8934be87c9ed4947
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < b267255c15d2a5b90c4e926146aa155e5161e264
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 3d542cf3c4c854cdf5d58049771f68926b9eb2b9
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < 3d4f23885e4b90347c9a1d779af6e79a99b5172a
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 affected < df1d8abf36ca3681c21a6809eaa9a1e01ef897a6
Linux Linux affected
Version Status Constraints
6.1.167 unaffected ≤ 6.1.*
6.6.130 unaffected ≤ 6.6.*
6.12.78 unaffected ≤ 6.12.*
6.18.19 unaffected ≤ 6.18.*
6.19.9 unaffected ≤ 6.19.*
7.0 unaffected ≤ *

No data.

No data.

No data.

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Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://git.kernel.org/stable/c/3d4f23885e4b90347c9a1d779af6e79a99b5172a cve-icon cve-icon
https://git.kernel.org/stable/c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9 cve-icon cve-icon
https://git.kernel.org/stable/c/b014cc945baba75816cda0cf8934be87c9ed4947 cve-icon cve-icon
https://git.kernel.org/stable/c/b267255c15d2a5b90c4e926146aa155e5161e264 cve-icon cve-icon
https://git.kernel.org/stable/c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba cve-icon cve-icon
https://git.kernel.org/stable/c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6 cve-icon cve-icon
History

Fri, 08 May 2026 14:45:00 +0000

Type Values Removed Values Added
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.
Title ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces
First Time appeared Linux
Linux linux Kernel
CPEs cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
Vendors & Products Linux
Linux linux Kernel
References

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cve-icon MITRE

Status: PUBLISHED

Assigner: Linux

Published:

Updated: 2026-05-08T14:22:06.632Z

Reserved: 2026-05-01T14:12:56.009Z

Link: CVE-2026-43436

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Received

Published: 2026-05-08T15:16:55.930

Modified: 2026-05-08T15:16:55.930

Link: CVE-2026-43436

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses

No weakness.