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CVE PROGRAM SOURCE RECORDUnscored

CVE-2022-49772

ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open()

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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: Drop snd_BUG_ON() from snd_usbmidi_output_open() snd_usbmidi_output_open() has a check of the NULL port with snd_BUG_ON(). snd_BUG_ON() was used as this shouldn't have happened, but in reality, the NULL port may be seen when the device gives an invalid endpoint setup at the descriptor, hence the driver skips the allocation. That is, the check itself is valid and snd_BUG_ON() should be dropped from there. Otherwise it's confusing as if it were a real bug, as recently syzbot stumbled on it.

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

  • 738d9edcfd44f154924692e54109fb439fcf8bdd to < c43991065f36f7628cd124e037b8750c4617a7a7affected
  • 738d9edcfd44f154924692e54109fb439fcf8bdd to < e7dc436aea80308a9268e6d2d85f910ff107de9baffected
  • 738d9edcfd44f154924692e54109fb439fcf8bdd to < a80369c8ca50bc885d14386087a834659ec54a54affected
  • 738d9edcfd44f154924692e54109fb439fcf8bdd to < 02b94885b2fdf1808b1874e009bfb90753f8f4dbaffected
  • 738d9edcfd44f154924692e54109fb439fcf8bdd to < 00f5f1bbf815a39e9eecb468d12ca55d3360eb10affected
  • 738d9edcfd44f154924692e54109fb439fcf8bdd to < ad72c3c3f6eb81d2cb189ec71e888316adada5dfaffected

Linux Linux

Default version status: affected

  • 4.15affected
  • 0 to < 4.15unaffected
  • 4.19.267 to ≤ 4.19.*unaffected
  • 5.4.225 to ≤ 5.4.*unaffected
  • 5.10.156 to ≤ 5.10.*unaffected
  • 5.15.80 to ≤ 5.15.*unaffected
  • 6.0.10 to ≤ 6.0.*unaffected
  • 6.1 to ≤ *unaffected

References