media: chips-media: wave5: Fix PM runtime usage count underflow
Published May 8, 2026
5.5
MEDIUMCVSS 3.1
EPSS 0.16%
Description
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!
Affected products
-
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version StatusaffectedConstraints
- Version
-
- Version 6.8StatusaffectedConstraints-
- Version 0StatusunaffectedConstraints<6.8
- Version 6.18.16StatusunaffectedConstraints<=6.18.*
- Version 6.19.6StatusunaffectedConstraints<=6.19.*
- Version 7.0StatusunaffectedConstraints<=*
- Version
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
- ≥ 6.8 · < 6.18.16
- ≥ 6.19 · < 6.19.6
No data.
Red Hat Enterprise Linux 10
kernel
Not affected
Red Hat Enterprise Linux 6
kernel
Not affected
Red Hat Enterprise Linux 7
kernel
Not affected
Red Hat Enterprise Linux 7
kernel-rt
Not affected
Red Hat Enterprise Linux 8
kernel
Not affected
Red Hat Enterprise Linux 8
kernel-rt
Not affected
Red Hat Enterprise Linux 9
kernel
Not affected
Red Hat Enterprise Linux 9
kernel-rt
Not affected
| Product | Package | State | Advisory |
|---|---|---|---|
| Red Hat Enterprise Linux 10 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 6 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 7 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 8 | kernel-rt | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel | Not affected | n/a |
| Red Hat Enterprise Linux 9 | kernel-rt | Not affected | n/a |
No package ranges for this CVE.
Remediation
No remediation recorded yet.
References (9)
- https://access.redhat.com/security/cve/CVE-2026-43301 Vendor Advisory
- https://bugzilla.redhat.com/show_bug.cgi?id=2468118 Issue Tracking
- https://euvd.enisa.europa.eu/vulnerability/EUVD-2026-28571 Advisory
- https://git.kernel.org/stable/c/0bffda02317989f8d5cdc2d4462a4110b1290cf0 Patch
- https://git.kernel.org/stable/c/3a278a55ead50db2444c8f01410c7f5a68723990 Patch
- https://git.kernel.org/stable/c/9cf4452e824c1e2d41c9c0b13cc8a32a0a7dec38 Patch
- https://lore.kernel.org/linux-cve-announce/2026050856-CVE-2026-43301-e11d@gregkh/T
- https://nvd.nist.gov/vuln/detail/CVE-2026-43301
- https://www.cve.org/CVERecord?id=CVE-2026-43301
Change history (0)
No recorded changes yet.