CVE-2026-98121

watchdog: msc313e: Fix NULL pointer dereference in PM callbacks

MEDIUM

5.5

CVSS Score

Published: September 25, 2026 at 10:36 AM UTC

Updated: October 22, 2026 at 05:23 PM UTC

1 product affected across 1 vendorLinux Kernel

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Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: watchdog: msc313e: Fix NULL pointer dereference in PM callbacks msc313e_wdt_probe() doesn't set the driver data for the platform device. As a result, dev_get_drvdata() in msc313e_wdt_suspend() and msc313e_wdt_resume() will return NULL, leading to a NULL pointer dereference afterward. Set the platform device driver data in msc313e_wdt_probe().

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Linux Kernel · Linux

95%

5.14 ≤ v < 5.15.2225.16 ≤ v < 6.1.1896.13 ≤ v < 6.18.536.19 ≤ v < 7.2.76.2 ≤ v < 6.6.1586.7 ≤ v < 6.12.1115.14 7.3e9800b7994642a794afd4894f072541c14277ce8

Vendor states this is fixed in 6495dc16e635356fd2b7535dcbf9b6779de4e753 (fixed)

Vendor states this is fixed in 744b25040d8206f7925b8ba0be5edf93fa4bf81e (fixed)

Vendor states this is fixed in 960251cc4a413d8f1eef2a2c6aca41073b57ce16 (fixed)

Vendor states this is fixed in a135415be56839e555e0bcdd5ffb8d2f5f947bd7 (fixed)

Vendor states this is fixed in afc3ea51e479289a23c642cc8bade67b94225ed9 (fixed)

Vendor states this is fixed in b02f902fe4b59d65f74a25c4523a75453bd3f808 (fixed)

Vendor states this is fixed in e3eceb76515910746e6268c4e4ac1c07516ebd7b (fixed)

Vendor states this is fixed in 5.14 (unaffected)

Vendor states this is fixed in 5.15.222 (unaffected)

Vendor states this is fixed in 6.1.189 (unaffected)

Vendor states this is fixed in 6.12.111 (unaffected)

Vendor states this is fixed in 6.18.53 (unaffected)