CVE-2026-98121
kernel: watchdog: msc313e: Fix NULL pointer dereference in PM callbacks
Severity
ModerateRed Hat Product Security
CVSS 3.1
Review impact separately from score.
Published · September 25, 2026
Updated · October 23, 2026
Description
A flaw was found in the Linux kernel's Mstar MSC313e watchdog driver. The driver fails to properly set platform device data during device initialization. Consequently, when system power management routines attempt to access this data during suspend or resume operations, a NULL pointer dereference occurs, resulting in a kernel crash and Denial of Service (DoS).
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-476 · NULL Pointer Dereference