Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 738d9edcfd44f154924692e54109fb439fcf8bdd before c43991065f36f7628cd124e037b8750c4617a7a7; affected 738d9edcfd44f154924692e54109fb439fcf8bdd before e7dc436aea80308a9268e6d2d85f910ff107de9b; affected 738d9edcfd44f154924692e54109fb439fcf8bdd before a80369c8ca50bc885d14386087a834659ec54a54; affected 738d9edcfd44f154924692e54109fb439fcf8bdd before 02b94885b2fdf1808b1874e009bfb90753f8f4db; affected 738d9edcfd44f154924692e54109fb439fcf8bdd before 00f5f1bbf815a39e9eecb468d12ca55d3360eb10; affected 738d9edcfd44f154924692e54109fb439fcf8bdd before ad72c3c3f6eb81d2cb189ec71e888316adada5df |
| Linux / Linux | affected 4.15; unaffected 0 before 4.15; unaffected 4.19.267 through 4.19.*; unaffected 5.4.225 through 5.4.*; unaffected 5.10.156 through 5.10.*; unaffected 5.15.80 through 5.15.*; unaffected 6.0.10 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/c43991065f36f7628cd124e037b8750c4617a7a7
- https://git.kernel.org/stable/c/e7dc436aea80308a9268e6d2d85f910ff107de9b
- https://git.kernel.org/stable/c/a80369c8ca50bc885d14386087a834659ec54a54
- https://git.kernel.org/stable/c/02b94885b2fdf1808b1874e009bfb90753f8f4db
- https://git.kernel.org/stable/c/00f5f1bbf815a39e9eecb468d12ca55d3360eb10
- https://git.kernel.org/stable/c/ad72c3c3f6eb81d2cb189ec71e888316adada5df