CVE-2026-52964
ALSA: usb-audio: Bound MIDI 2.0 endpoint descriptor scans
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 24, 2026 |
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Affected Versions
Linux / Linux
ff49d1df79aef7580fe3ac99d17c3f886655d080 < fafc97bd01e4c737eaeafadfdadb1af4bbfa7307 ff49d1df79aef7580fe3ac99d17c3f886655d080 < a310b4bebda5e4a1b26520c0cc5145ccd6d617e2 ff49d1df79aef7580fe3ac99d17c3f886655d080 < f9c184a83574549a36ea69b755f650e57d164c78 ff49d1df79aef7580fe3ac99d17c3f886655d080 < 17e76b19de1aff5ff4de64d269290bd1b07a01d3 ff49d1df79aef7580fe3ac99d17c3f886655d080 < 918be519c7876329e1b6e2ea1c59f0b75e792dca
Linux / Linux
6.5
References
git.kernel.org: https://git.kernel.org/stable/c/fafc97bd01e4c737eaeafadfdadb1af4bbfa7307 git.kernel.org: https://git.kernel.org/stable/c/a310b4bebda5e4a1b26520c0cc5145ccd6d617e2 git.kernel.org: https://git.kernel.org/stable/c/f9c184a83574549a36ea69b755f650e57d164c78 git.kernel.org: https://git.kernel.org/stable/c/17e76b19de1aff5ff4de64d269290bd1b07a01d3 git.kernel.org: https://git.kernel.org/stable/c/918be519c7876329e1b6e2ea1c59f0b75e792dca