Bug 2535377 (CVE-2026-89939) - CVE-2026-89939 kernel: iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable
Summary: CVE-2026-89939 kernel: iio: chemical: atlas-sensor: fix PM reference leak in ...
Keywords:
Status: NEW
Alias: CVE-2026-89939
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
medium
medium
Target Milestone: ---
Assignee: Product Security DevOps Team
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-16 12:26 UTC by OSIDB Bzimport
Modified: 2026-10-27 19:28 UTC (History)
17 users (show)

Fixed In Version:
Clone Of:
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Description OSIDB Bzimport 2026-09-16 12:26:35 UTC
In the Linux kernel, the following vulnerability has been resolved:

iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable

atlas_buffer_postenable() acquires a runtime PM reference with
pm_runtime_resume_and_get() but returns the result of
atlas_set_interrupt() directly. If atlas_set_interrupt() fails,
the runtime PM reference is leaked and the device can never
autosuspend.

Add pm_runtime_put_autosuspend() on the error path to balance
the reference.


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