CVE-2026-52963
ALSA: usb-audio: Bound MIDI 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 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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Jun 24, 2026 |
Stay Ahead of the Next One
Get instant alerts for linux linux
Be the first to know when new unknown vulnerabilities affecting linux linux are published — delivered to Slack, Telegram or Discord.
Get Free Alerts →
Free · No credit card · 60 sec setup
Affected Versions
Linux / Linux
5c6cd7021a05a02fcf37f360592d7c18d4d807fb < e2f1260a056eb3215c13c48c5378f3e4112dc3af 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < c65b137d351e21cbc5630e73ef0eb1e1d75f5b20 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < 728ab0c72e49ca27185067984cd565425eb69b2e 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < 3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < a0226560540c16717efcceaf15c862cf115b01d3 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < 09141583bd97f4bbd7358e29fd138fe798467cdb 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < c59159ce10e75b568cd0d4b29efcb0fb0ddecc94 5c6cd7021a05a02fcf37f360592d7c18d4d807fb < d6854daa67be623860f4e1873fd3d3c275aba4ed 9e0c71f2f633b0442661966228827d1a33df485f 0868bc5654c07628c421547f0821650a8c2cb8f3 78483c1c7741ffa72991d93d19a75bfdcc2cbf57 65d95462001c6ccd9bc9499c1fc9a90eca9de496 ca767cf0152d18fc299cde85b18d1f46ac21e1ba 4.4.238 < 4.5 4.9.238 < 4.10 4.14.200 < 4.15 4.19.149 < 4.20 5.4.69 < 5.5
Linux / Linux
5.7
References
git.kernel.org: https://git.kernel.org/stable/c/e2f1260a056eb3215c13c48c5378f3e4112dc3af git.kernel.org: https://git.kernel.org/stable/c/c65b137d351e21cbc5630e73ef0eb1e1d75f5b20 git.kernel.org: https://git.kernel.org/stable/c/728ab0c72e49ca27185067984cd565425eb69b2e git.kernel.org: https://git.kernel.org/stable/c/3d3b2b01a3e73828e201ece96f863e7a3e0cdc6e git.kernel.org: https://git.kernel.org/stable/c/a0226560540c16717efcceaf15c862cf115b01d3 git.kernel.org: https://git.kernel.org/stable/c/09141583bd97f4bbd7358e29fd138fe798467cdb git.kernel.org: https://git.kernel.org/stable/c/c59159ce10e75b568cd0d4b29efcb0fb0ddecc94 git.kernel.org: https://git.kernel.org/stable/c/d6854daa67be623860f4e1873fd3d3c275aba4ed