Medium 5.5Published May 8, 2026

CVE-2026-43301media: chips-media: wave5: Fix PM runtime usage count underflow

Updated under an hour ago (Oct 27, 2026, 9:50 AM ET)

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Exploited in the last 30 days

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!

CVSS: 5.5 MEDIUM (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness (CWE): Not given
Known exploited: Not in CISA's KEV catalog
EPSS (exploitation in the next 30 days): Not loaded for this CVE
Assigned by: Linux
NVD analysis: Analyzed
Record last updated: May 11, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	9707a6254a8a6b978bde811a44fe07d86c229d1c builds before 3a278a55ead50db2444c8f01410c7f5a68723990; 9707a6254a8a6b978bde811a44fe07d86c229d1c builds before 0bffda02317989f8d5cdc2d4462a4110b1290cf0; 9707a6254a8a6b978bde811a44fe07d86c229d1c builds before 9cf4452e824c1e2d41c9c0b13cc8a32a0a7dec38	CNA record
linux linux_kernel linux:linux_kernel	from 6.8 before 6.18.16; from 6.19 before 6.19.6	NVD

References

References

https://git.kernel.org/stable/c/3a278a55ead50db2444c8f01410c7f5a68723990	patch
https://git.kernel.org/stable/c/0bffda02317989f8d5cdc2d4462a4110b1290cf0	patch
https://git.kernel.org/stable/c/9cf4452e824c1e2d41c9c0b13cc8a32a0a7dec38	patch

The CVE record on cve.org NVD's entry

The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.