CVE-2026-43301

MEDIUM

media: chips-media: wave5: Fix PM runtime usage count underflow

Title source: cna
STIX 2.1

Description

In the Linux kernel, the following vulnerability has been resolved: media: chips-media: wave5: Fix PM runtime usage count underflow Replace pm_runtime_put_sync() with pm_runtime_dont_use_autosuspend() in the remove path to properly pair with pm_runtime_use_autosuspend() from probe. This allows pm_runtime_disable() to handle reference count cleanup correctly regardless of current suspend state. The driver calls pm_runtime_put_sync() unconditionally in remove, but the device may already be suspended due to autosuspend configured in probe. When autosuspend has already suspended the device, the usage count is 0, and pm_runtime_put_sync() decrements it to -1. This causes the following warning on module unload: ------------[ cut here ]------------ WARNING: CPU: 1 PID: 963 at kernel/kthread.c:1430 kthread_destroy_worker+0x84/0x98 ... vdec 30210000.video-codec: Runtime PM usage count underflow!

Scores

CVSS v3 5.5
EPSS 0.0001
EPSS Percentile 2.3%
Attack Vector LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Details

CWE
CWE-191
Status published
Products (9)
Linux/Linux < 6.8
Linux/Linux 6.18.16 - 6.18.*
Linux/Linux 6.19.6 - 6.19.*
Linux/Linux 6.8
Linux/Linux 7.0
Linux/Linux 9707a6254a8a6b978bde811a44fe07d86c229d1c - 0bffda02317989f8d5cdc2d4462a4110b1290cf0
Linux/Linux 9707a6254a8a6b978bde811a44fe07d86c229d1c - 3a278a55ead50db2444c8f01410c7f5a68723990
Linux/Linux 9707a6254a8a6b978bde811a44fe07d86c229d1c - 9cf4452e824c1e2d41c9c0b13cc8a32a0a7dec38
linux/linux_kernel 6.8 - 6.18.16
Published May 08, 2026
Tracked Since May 08, 2026