Description (CNA)
In the Linux kernel, the following vulnerability has been resolved: ALSA: virtio: Validate control metadata from the device virtio-snd control handling trusts the device-provided control type and value count returned by the device. That metadata is then used directly to index g_v2a_type_map[] in virtsnd_kctl_info(), and to size loops and memcpy() operations in virtsnd_kctl_get() and virtsnd_kctl_put() against fixed-size virtio_snd_ctl_value and snd_ctl_elem_value arrays. A buggy or malicious device can therefore trigger out-of-bounds access by advertising an invalid control type or an oversized value count. Validate control type and count once in virtsnd_kctl_parse_cfg(), before querying enumerated items or exposing the control to ALSA.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected d6568e3de42dd971a1356f7ba581e6600d53f0a0 before 3243563f99ef5d3949b934bd6390a5679405d0e1; affected d6568e3de42dd971a1356f7ba581e6600d53f0a0 before 5da9742de22db0dbaa8d414214ab5e1bedde00f9; affected d6568e3de42dd971a1356f7ba581e6600d53f0a0 before 21584672fd699abe1768241d6c501b2de6139b6a; affected d6568e3de42dd971a1356f7ba581e6600d53f0a0 before c77a6cbb36ff8cbc1f084d94f8dcda5250935271 |
| Linux / Linux | affected 6.9; unaffected 0 before 6.9; unaffected 6.12.96 through 6.12.*; unaffected 6.18.39 through 6.18.*; unaffected 7.1.4 through 7.1.*; unaffected 7.2 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/3243563f99ef5d3949b934bd6390a5679405d0e1
- https://git.kernel.org/stable/c/5da9742de22db0dbaa8d414214ab5e1bedde00f9
- https://git.kernel.org/stable/c/21584672fd699abe1768241d6c501b2de6139b6a
- https://git.kernel.org/stable/c/c77a6cbb36ff8cbc1f084d94f8dcda5250935271
ADP enrichment
No English description supplied.
No references supplied.