CVE-2022-49051

Description

In the Linux kernel, the following vulnerability has been resolved: net: usb: aqc111: Fix out-of-bounds accesses in RX fixup aqc111_rx_fixup() contains several out-of-bounds accesses that can be triggered by a malicious (or defective) USB device, in particular: - The metadata array (desc_offset..desc_offset+2*pkt_count) can be out of bounds, causing OOB reads and (on big-endian systems) OOB endianness flips. - A packet can overlap the metadata array, causing a later OOB endianness flip to corrupt data used by a cloned SKB that has already been handed off into the network stack. - A packet SKB can be constructed whose tail is far beyond its end, causing out-of-bounds heap data to be considered part of the SKB's data. Found doing variant analysis. Tested it with another driver (ax88179_178a), since I don't have a aqc111 device to test it, but the code looks very similar.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

References

• https://git.kernel.org/stable/c/404998a137bcb8a926f7c949030afbe285472593 ↗
• https://git.kernel.org/stable/c/d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7 ↗
• https://git.kernel.org/stable/c/b416898442f2b6aa9f1b2f2968ce07e3abaa05f7 ↗
• https://git.kernel.org/stable/c/36311fe98f55dea9200c69e2dd6d6ddb8fc94080 ↗
• https://git.kernel.org/stable/c/afb8e246527536848b9b4025b40e613edf776a9d ↗