Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix out-of-bounds read in snd_usb_get_audioformat_uac3() In snd_usb_get_audioformat_uac3(), the length value returned from snd_usb_ctl_msg() is used directly for memory allocation without validation. This length is controlled by the USB device. The allocated buffer is cast to a uac3_cluster_header_descriptor and its fields are accessed without verifying that the buffer is large enough. If the device returns a smaller than expected length, this leads to an out-of-bounds read. Add a length check to ensure the buffer is large enough for uac3_cluster_header_descriptor.
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
9a2fe9b801f585baccf8352d82839dcd54b300cf to < 24ff7d465c4284529bbfa207757bffb6f44b6403affected9a2fe9b801f585baccf8352d82839dcd54b300cf to < 2dc1c3edf67abd30c757f8054a5da61927cdda21affected9a2fe9b801f585baccf8352d82839dcd54b300cf to < c3fb926abe90d86f5e3055e0035f04d9892a118baffected9a2fe9b801f585baccf8352d82839dcd54b300cf to < 6eb211788e1370af52a245d4d7da35c374c7b401affected9a2fe9b801f585baccf8352d82839dcd54b300cf to < 74fcb3852a2f579151ce80b9ed96cd916ba0d5d8affected9a2fe9b801f585baccf8352d82839dcd54b300cf to < 0ee87c2814deb5e42921281116ac3abcb326880baffected9a2fe9b801f585baccf8352d82839dcd54b300cf to < 11e740dc1a2c8590eb7074b5c4ab921bb6224c36affected9a2fe9b801f585baccf8352d82839dcd54b300cf to < fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8aaffected
Linux Linux
Default version status: affected
4.17affected0 to < 4.17unaffected5.4.296 to ≤ 5.4.*unaffected5.10.240 to ≤ 5.10.*unaffected5.15.187 to ≤ 5.15.*unaffected6.1.143 to ≤ 6.1.*unaffected6.6.96 to ≤ 6.6.*unaffected6.12.36 to ≤ 6.12.*unaffected6.15.5 to ≤ 6.15.*unaffected6.16 to ≤ *unaffected
References
- https://git.kernel.org/stable/c/24ff7d465c4284529bbfa207757bffb6f44b6403 ↗
- https://git.kernel.org/stable/c/2dc1c3edf67abd30c757f8054a5da61927cdda21 ↗
- https://git.kernel.org/stable/c/c3fb926abe90d86f5e3055e0035f04d9892a118b ↗
- https://git.kernel.org/stable/c/6eb211788e1370af52a245d4d7da35c374c7b401 ↗
- https://git.kernel.org/stable/c/74fcb3852a2f579151ce80b9ed96cd916ba0d5d8 ↗
- https://git.kernel.org/stable/c/0ee87c2814deb5e42921281116ac3abcb326880b ↗
- https://git.kernel.org/stable/c/11e740dc1a2c8590eb7074b5c4ab921bb6224c36 ↗
- https://git.kernel.org/stable/c/fb4e2a6e8f28a3c0ad382e363aeb9cd822007b8a ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00008.html ↗
- https://lists.debian.org/debian-lts-announce/2025/10/msg00007.html ↗