CVE-2024-53150
ALSA: usb-audio: Fix out of bounds reads when finding clock sources
We use these services and cookies to improve your user experience. You may opt out if you wish, however, this may limit some features on this site.
Please see our statement on Data Privacy.
ALSA: usb-audio: Fix out of bounds reads when finding clock sources
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix out of bounds reads when finding clock sources The current USB-audio driver code doesn't check bLength of each descriptor at traversing for clock descriptors. That is, when a device provides a bogus descriptor with a shorter bLength, the driver might hit out-of-bounds reads. For addressing it, this patch adds sanity checks to the validator functions for the clock descriptor traversal. When the descriptor length is shorter than expected, it's skipped in the loop. For the clock source and clock multiplier descriptors, we can just check bLength against the sizeof() of each descriptor type. OTOH, the clock selector descriptor of UAC2 and UAC3 has an array of bNrInPins elements and two more fields at its tail, hence those have to be checked in addition to the sizeof() check.
Reserved 2024-11-19 | Published 2024-12-24 | Updated 2025-04-09 | Assigner LinuxDate added 2025-04-09 | Due date 2025-04-30
Apply mitigations per vendor instructions, follow applicable BOD 22-01 guidance for cloud services, or discontinue use of the product if mitigations are unavailable.
git.kernel.org/...c/a632bdcb359fd8145e86486ff8612da98e239acd
git.kernel.org/...c/45a92cbc88e4013bfed7fd2ccab3ade45f8e896b
git.kernel.org/...c/ab011f7439d9bbfd34fd3b9cef4b2d6d952c9bb9
git.kernel.org/...c/da13ade87a12dd58829278bc816a61bea06a56a9
git.kernel.org/...c/74cb86e1006c5437b1d90084d22018da30fddc77
git.kernel.org/...c/ea0fa76f61cf8e932d1d26e6193513230816e11d
git.kernel.org/...c/096bb5b43edf755bc4477e64004fa3a20539ec2f
git.kernel.org/...c/a3dd4d63eeb452cfb064a13862fb376ab108f6a6
Support options
