CVE-2025-71274
kernel: rpmsg: core: fix race in driver_override_show() and use core helper
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · May 6, 2026
Updated · July 30, 2026
Description
A flaw was found in the Linux kernel's rpmsg core. A race condition exists between the driver_override_show() and driver_override_store() functions. This allows the driver_override string to be freed while it is still being read, leading to a use-after-free vulnerability. This could potentially result in system instability or a denial of service.
Statement
Red Hat acknowledges the upstream Linux kernel correction for «rpmsg» 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.
CVSS score applicability
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.
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CVSS 3.1 · 5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CWE-364 · Signal Handler Race Condition