CVE-2025-39772

drm/hisilicon/hibmc: fix the hibmc loaded failed bug

MEDIUM

5.5

CVSS Score

Published: September 11, 2025 at 04:56 PM UTC

Updated: October 19, 2026 at 09:10 PM UTC

3 products affected across 3 vendorsLinux KernelDebian LinuxSIMATIC CN 4100

Using Linux by Linux?

Get instant alerts when new vulnerabilities affect Linux - before attackers find them.

Real-time alertsTrack your software stackFree plan available

Start Free Sign In

Severity

MEDIUM5.5

Exploit prediction

EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: drm/hisilicon/hibmc: fix the hibmc loaded failed bug When hibmc loaded failed, the driver use hibmc_unload to free the resource, but the mutexes in mode.config are not init, which will access an NULL pointer. Just change goto statement to return, because hibnc_hw_init() doesn't need to free anything.

Affected

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

Debian Linux · Debiandrupal

95%

11.0

Linux Kernel · Linux

95%

4.14 ≤ v < 5.15.1905.16 ≤ v < 6.1.1496.13 ≤ v < 6.16.46.2 ≤ v < 6.6.1036.7 ≤ v < 6.12.444.14 6.17 6.17 rc1 6.17 rc2b3df5e65cc03696b0624a877d03a3ddf3ef43f52

Vendor states this is fixed in 93a08f856fcc5aaeeecad01f71bef3088588216a (fixed)

Vendor states this is fixed in a4f1b9c57092c48bdc7958abd23403ccaed437b2 (fixed)

Vendor states this is fixed in c950e1be3a24d021475b56efdb49daa7fbba63a9 (fixed)

Vendor states this is fixed in d3e774266c28aefab3e9db334fdf568f936cae04 (fixed)

Vendor states this is fixed in ddf1691f25345699296e642f0f59f2d464722fa3 (fixed)

Vendor states this is fixed in f93032e5d68f459601c701f6ab087b5feb3382e8 (fixed)

Vendor states this is fixed in 4.14 (unaffected)

Vendor states this is fixed in 5.15.190 (unaffected)

Vendor states this is fixed in 6.1.149 (unaffected)

Vendor states this is fixed in 6.12.44 (unaffected)

Vendor states this is fixed in 6.16.4 (unaffected)

Vendor states this is fixed in 6.17 (unaffected)