CVE-2022-49051

net: usb: aqc111: Fix out-of-bounds accesses in RX fixup

MEDIUM
6.8
CVSS Score
Published: February 26, 2025 at 01:54 AM UTC
Updated: August 13, 2026 at 12:35 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM6.8
Exploit prediction
EPSS 0.5%

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

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

5.0 ≤ v < 5.10.1125.0 ≤ v < 5.15.355.0 ≤ v < 5.17.45.0 ≤ v < 5.185.0 ≤ v < 5.4.1905.11 ≤ v < 5.15.355.16 ≤ v < 5.17.45.5 ≤ v < 5.10.112361459cd9642631f048719169da9ef14cbf4a9325.18 rc1
Vendor states this is fixed in 36311fe98f55dea9200c69e2dd6d6ddb8fc94080 (fixed)
Vendor states this is fixed in 404998a137bcb8a926f7c949030afbe285472593 (fixed)
Vendor states this is fixed in afb8e246527536848b9b4025b40e613edf776a9d (fixed)
Vendor states this is fixed in b416898442f2b6aa9f1b2f2968ce07e3abaa05f7 (fixed)
Vendor states this is fixed in d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7 (fixed)
Vendor states this is fixed in 5.0 (unaffected)
Vendor states this is fixed in 5.10.112 (unaffected)
Vendor states this is fixed in 5.15.35 (unaffected)
Vendor states this is fixed in 5.17.4 (unaffected)
Vendor states this is fixed in 5.18 (unaffected)
Vendor states this is fixed in 5.4.190 (unaffected)

References (5)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/36311fe98f55dea9200c69e2dd6d6ddb8fc94080
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/404998a137bcb8a926f7c949030afbe285472593
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/afb8e246527536848b9b4025b40e613edf776a9d
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/b416898442f2b6aa9f1b2f2968ce07e3abaa05f7
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/d90df6da50c56ad8b1a132e3cf86b6cdf8f507b7

CVSS

Attack Vector
PHYSICAL
Complexity
LOW
Privileges
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusANALYZED
CWE
CWE-125CWE-787

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