CVEvulnerability
CVE-2026-52964
5.5 MEDIUM
Official page ↗
- Status
- Analyzed
- Published
- 2026-06-24
- Last modified
- 2026-07-14
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 ([email protected])
- 5.5 MEDIUM — CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Description
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans
The USB MIDI 2.0 endpoint parser has the same descriptor walking
pattern as the legacy MIDI parser. It validates bLength against
bNumGrpTrmBlock before reading baAssoGrpTrmBlkID[], but not against the
remaining bytes in the endpoint-extra scan.
A malformed device can therefore make later baAssoGrpTrmBlkID[] reads
consume bytes past the walked descriptor.
Reject zero-length and overlong descriptors while walking endpoint
extras.
Affected configurations
• linux linux kernel (>= 6.5 < 6.6.141)
• linux linux kernel (>= 6.7 < 6.12.91)
• linux linux kernel (>= 6.13 < 6.18.33)
• linux linux kernel (>= 6.19 < 7.0.10)
• linux linux kernel 7.1
References
- https://git.kernel.org/stable/c/17e76b19de1aff5ff4de64d269290bd1b07a01d3 Patch
- https://git.kernel.org/stable/c/918be519c7876329e1b6e2ea1c59f0b75e792dca Patch
- https://git.kernel.org/stable/c/a310b4bebda5e4a1b26520c0cc5145ccd6d617e2 Patch
- https://git.kernel.org/stable/c/f9c184a83574549a36ea69b755f650e57d164c78 Patch
- https://git.kernel.org/stable/c/fafc97bd01e4c737eaeafadfdadb1af4bbfa7307 Patch