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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-52963

ALSA: usb-audio: Bound MIDI endpoint descriptor scans

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Status
Published
Published
Updated
Assigning organization
Linux

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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • 5c6cd7021a05a02fcf37f360592d7c18d4d807fb to < e2f1260a056eb3215c13c48c5378f3e4112dc3afaffected
  • 5c6cd7021a05a02fcf37f360592d7c18d4d807fb to < c65b137d351e21cbc5630e73ef0eb1e1d75f5b20affected
  • 5c6cd7021a05a02fcf37f360592d7c18d4d807fb to < 728ab0c72e49ca27185067984cd565425eb69b2eaffected
  • 5c6cd7021a05a02fcf37f360592d7c18d4d807fb to < 3d3b2b01a3e73828e201ece96f863e7a3e0cdc6eaffected
  • 5c6cd7021a05a02fcf37f360592d7c18d4d807fb to < a0226560540c16717efcceaf15c862cf115b01d3affected
  • 5c6cd7021a05a02fcf37f360592d7c18d4d807fb to < 09141583bd97f4bbd7358e29fd138fe798467cdbaffected
  • 5c6cd7021a05a02fcf37f360592d7c18d4d807fb to < c59159ce10e75b568cd0d4b29efcb0fb0ddecc94affected
  • 5c6cd7021a05a02fcf37f360592d7c18d4d807fb to < d6854daa67be623860f4e1873fd3d3c275aba4edaffected
  • 9e0c71f2f633b0442661966228827d1a33df485faffected
  • 0868bc5654c07628c421547f0821650a8c2cb8f3affected
  • 78483c1c7741ffa72991d93d19a75bfdcc2cbf57affected
  • 65d95462001c6ccd9bc9499c1fc9a90eca9de496affected
  • ca767cf0152d18fc299cde85b18d1f46ac21e1baaffected
  • 4.4.238 to < 4.5affected
  • 4.9.238 to < 4.10affected
  • 4.14.200 to < 4.15affected
  • 4.19.149 to < 4.20affected
  • 5.4.69 to < 5.5affected

Linux Linux

Default version status: affected

  • 5.7affected
  • 0 to < 5.7unaffected
  • 5.10.258 to ≤ 5.10.*unaffected
  • 5.15.209 to ≤ 5.15.*unaffected
  • 6.1.175 to ≤ 6.1.*unaffected
  • 6.6.141 to ≤ 6.6.*unaffected
  • 6.12.91 to ≤ 6.12.*unaffected
  • 6.18.33 to ≤ 6.18.*unaffected
  • 7.0.10 to ≤ 7.0.*unaffected
  • 7.1 to ≤ *unaffected

References