Vulnerability 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.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Linux | Linux Kernel | < 4.9.334 |
References
- https://git.kernel.org/stable/c/00f5f1bbf815a39e9eecb468d12ca55d3360eb10Patch
- https://git.kernel.org/stable/c/02b94885b2fdf1808b1874e009bfb90753f8f4dbPatch
- https://git.kernel.org/stable/c/a80369c8ca50bc885d14386087a834659ec54a54Patch
- https://git.kernel.org/stable/c/ad72c3c3f6eb81d2cb189ec71e888316adada5dfPatch
- https://git.kernel.org/stable/c/c43991065f36f7628cd124e037b8750c4617a7a7Patch
- https://git.kernel.org/stable/c/e7dc436aea80308a9268e6d2d85f910ff107de9bPatch
FAQ
What is CVE-2022-49772?
CVE-2022-49772 is a vulnerability with a CVSS score of 5.5 (MEDIUM). 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_...
How severe is CVE-2022-49772?
CVE-2022-49772 has been rated MEDIUM with a CVSS base score of 5.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2022-49772?
Check the references section above for vendor advisories and patch information. Affected products include: Linux Linux Kernel.