CVE-2026-43156

A flaw was found in the Linux kernel's USB Pegasus driver. This vulnerability allows a local attacker to use a specially crafted USB device to bypass expected endpoint checks. By presenting unexpected transfer types, the malicious device could trigger a system assertion, potentially leading to a denial of service (DoS) condition.

Red Hat acknowledges the upstream Linux kernel correction for «net» as described in COMMENT_ZERO. Fixes are delivered through standard kernel errata for supported products. Operational exposure depends on whether this subsystem or driver is active in your configuration.

The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.

To mitigate this issue, prevent the pegasus module from being loaded. See https://access.redhat.com/solutions/41278 for instructions.