SB20260816451 - Type Confusion in Linux kernel input misc driver
Published: August 16, 2026
Security Bulletin ID
SB20260816451
CSH Severity
Medium
Patch available
YES
Number of vulnerabilities
1
Exploitation vector
Physical access
Highest impact
Denial of service
Breakdown by Severity
- Low
- Medium
- High
- Critical
Description
This security bulletin contains information about 1 vulnerability.
1) Type Confusion (CVE-ID: CVE-2026-72074)
CWE-ID: CWE-843 - Type confusion
CVSSv4: 5.1 [CVSS:4.0/AV:P/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:H/SC:N/SI:N/SA:N]
The vulnerability allows an attacker with physical access to cause a denial of service.
The vulnerability exists due to type confusion in the CDC union descriptor parser in the ims-pcu driver when parsing a crafted USB CDC union descriptor. An attacker with physical access can provide a device with a manipulated bMasterInterface0 value to cause a denial of service.
Remediation
Install update from vendor's website.
References
- https://git.kernel.org/stable/c/08bf4b6ee28987570f4b3f1954427621fa291bf5
- https://git.kernel.org/stable/c/0e8115a7ed9a99ff9495615a575a6c0f43566d10
- https://git.kernel.org/stable/c/163c3e7a1de6b3d5c85edb3bdf4cf087382103b0
- https://git.kernel.org/stable/c/ab87cd7789d00f441f60a016cbcff35abe76513c
- https://git.kernel.org/stable/c/b5518c5632f3485849421b9c33b4db5ae6a54ed7
- https://git.kernel.org/stable/c/ca459e237bc49567649c56bc72e4c602fb92fd67
- https://git.kernel.org/stable/c/f4cf878dcc4f6f02e7a25294bfaed4361264995e
- https://git.kernel.org/stable/c/fa7f65c5315a25b310daae69ab527efd420e37fa