CVE-2022-49772
ALSA: usb-audio: Drop snd_BUG_ON() from snd_usbmidi_output_open()
MEDIUM 5.5
At a glance
- Source
- NVD
- EPSS
- EPSS 0.20 % · percentile 10 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
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.
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
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2025-12988
- GCVE · GCVE-0-2022-49772
CERT-FR advisories
- CERTFR-2026-AVI-0081 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-1009 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0587 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0560 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0529 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0509 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 4.9.334cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.10 < 4.14.300cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.267cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.225cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.156cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.80cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.0.10cpe:2.3:o:linux:linux_kernel:6.1:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.1:rc5:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 738d9edcfd44f154924692e54109fb439fcf8bdd < c43991065f36f7628cd124e037b8750c4617a7a7 ; affected 738d9edcfd44f154924692e54109fb439fcf8bdd < e7dc436aea80308a9268e6d2d85f910ff107de9b ; affected 738d9edcfd44f154924692e54109fb439fcf8bdd < a80369c8ca50bc885d14386087a834659ec54a54 ; affected 738d9edcfd44f154924692e54109fb439fcf8bdd < 02b94885b2fdf1808b1874e009bfb90753f8f4db ; affected 738d9edcfd44f154924692e54109fb439fcf8bdd < 00f5f1bbf815a39e9eecb468d12ca55d3360eb10 ; affected 738d9edcfd44f154924692e54109fb439fcf8bdd < ad72c3c3f6eb81d2cb189ec71e888316adada5df |
| Linux · Linux | affected 4.15 ; unaffected 0 < 4.15 ; unaffected 4.19.267 ≤ 4.19.* ; unaffected 5.4.225 ≤ 5.4.* ; unaffected 5.10.156 ≤ 5.10.* ; unaffected 5.15.80 ≤ 5.15.* |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |