SB20260325162 - Improper control of a resource through its lifetime in Linux kernel net usb driver

Description

This security bulletin contains information about 1 security vulnerability.

1) Improper control of a resource through its lifetime (CVE-ID: CVE-2026-23290)

The vulnerability allows a remote attacker to cause a denial of service.

The vulnerability exists due to improper input validation in the pegasus USB driver when handling USB endpoints during device probing. A remote attacker can connect a malicious USB device with invalid or unexpected endpoint configurations to cause a denial of service.

Exploitation does not require authentication or user interaction beyond physically connecting the device; however, the attack vector is considered local due to physical access requirement.

Remediation

Install update from vendor's website.

References

• https://git.kernel.org/stable/c/11de1d3ae5565ed22ef1f89d73d8f2d00322c699
• https://git.kernel.org/stable/c/43d7c4114b1ec14f41f09306525d3b9382286fc1
• https://git.kernel.org/stable/c/7f8505c7ce3f186ef9d2495f3c0bd6ad6fce999f
• https://git.kernel.org/stable/c/95556b4e879711693c9865ba0938c148f62d5ea4
• https://git.kernel.org/stable/c/c3f1672eaea68c5cb6e1ec081cdb92045453218f
• https://git.kernel.org/stable/c/ee31ec8cf1eafeefa85ef934ba688d27f88bf0e2