CVE-2023-53177
kernel: media: hi846: fix usage of pm_runtime_get_if_in_use()
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Severity
UnknownRed Hat Product Security
CVSS
Review impact separately from score.
Published · September 15, 2025
Updated · June 30, 2026
Description
In the Linux kernel, the following vulnerability has been resolved:
media: hi846: fix usage of pm_runtime_get_if_in_use()
pm_runtime_get_if_in_use() does not only return nonzero values when the device is in use, it can return a negative errno too.
And especially during resuming from system suspend, when runtime pm is not yet up again, -EAGAIN is being returned, so the subsequent pm_runtime_put() call results in a refcount underflow.
Fix system-resume by handling -EAGAIN of pm_runtime_get_if_in_use().
Mitigation
No mitigation is specified in collected source.
CVSS / CWE
CWE not specified