CVE-2026-52963
Description
In the Linux kernel, the following vulnerability has been resolved:
ALSA: usb-audio: Bound MIDI endpoint descriptor scans
snd_usbmidi_get_ms_info() validates the internal MIDIStreaming endpoint
descriptor size before using baAssocJackID[], but the descriptor walker can
still return a class-specific endpoint descriptor whose bLength exceeds the
remaining bytes in the endpoint-extra scan.
That leaves later flexible-array reads bounded by bLength, but not by the
remaining bytes in the endpoint-extra scan.
Stop walking when bLength is zero or
extends past the remaining endpoint-extra scan.
Metadata
Severity & Metrics
No CVSS data available.
Affected products (2)
| Vendor | Product | Platform | Versions |
|---|---|---|---|
| Linux | Linux | — | 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < e2f1260a056eb3215c13c48c5378f3e4112dc3af, 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < c65b137d351e21cbc5630e73ef0eb1e1d75f5b20, 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < 728ab0c72e49ca27185067984cd565425eb69b2e, 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < 3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e … |
| Linux | Linux | — | 5.7, 0 < 5.7, 5.10.258 ≤ 5.10.*, 5.15.209 ≤ 5.15.* … |
References (8)
- https://git.kernel.org/stable/c/e2f1260a056eb3215c13c48c5378f3e4112dc3af
- https://git.kernel.org/stable/c/c65b137d351e21cbc5630e73ef0eb1e1d75f5b20
- https://git.kernel.org/stable/c/728ab0c72e49ca27185067984cd565425eb69b2e
- https://git.kernel.org/stable/c/3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e
- https://git.kernel.org/stable/c/a0226560540c16717efcceaf15c862cf115b01d3
- https://git.kernel.org/stable/c/09141583bd97f4bbd7358e29fd138fe798467cdb
- https://git.kernel.org/stable/c/c59159ce10e75b568cd0d4b29efcb0fb0ddecc94
- https://git.kernel.org/stable/c/d6854daa67be623860f4e1873fd3d3c275aba4ed