Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Check endpoint numbers at parsing Scarlett2 mixer interfaces The Scarlett2 mixer quirk in USB-audio driver may hit a NULL dereference when a malformed USB descriptor is passed, since it assumes the presence of an endpoint in the parsed interface in scarlett2_find_fc_interface(), as reported by fuzzer. For avoiding the NULL dereference, just add the sanity check of bNumEndpoints and skip the invalid interface.
Product status
6c0a2078134aba6a77291554035304df9e16b85c (git) before b014cc945baba75816cda0cf8934be87c9ed4947
6c0a2078134aba6a77291554035304df9e16b85c (git) before c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba
6c0a2078134aba6a77291554035304df9e16b85c (git) before b267255c15d2a5b90c4e926146aa155e5161e264
6c0a2078134aba6a77291554035304df9e16b85c (git) before 3d542cf3c4c854cdf5d58049771f68926b9eb2b9
6c0a2078134aba6a77291554035304df9e16b85c (git) before 3d4f23885e4b90347c9a1d779af6e79a99b5172a
6c0a2078134aba6a77291554035304df9e16b85c (git) before df1d8abf36ca3681c21a6809eaa9a1e01ef897a6
5.14
Any version before 5.14
6.1.167 (semver)
6.6.130 (semver)
6.12.78 (semver)
6.18.19 (semver)
6.19.9 (semver)
7.0 (original_commit_for_fix)
References
git.kernel.org/...c/b014cc945baba75816cda0cf8934be87c9ed4947
git.kernel.org/...c/c5c5a6c53cf3b658f1d4512dfa61f3cd25bc34ba
git.kernel.org/...c/b267255c15d2a5b90c4e926146aa155e5161e264
git.kernel.org/...c/3d542cf3c4c854cdf5d58049771f68926b9eb2b9
git.kernel.org/...c/3d4f23885e4b90347c9a1d779af6e79a99b5172a
git.kernel.org/...c/df1d8abf36ca3681c21a6809eaa9a1e01ef897a6