CVE-2023-53177
Unknown Unknown - Not Provided
BaseFortify

Publication date: 2025-09-15

Last updated on: 2025-12-02

Assigner: kernel.org

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().
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Meta Information
Published
2025-09-15
Last Modified
2025-12-02
Generated
2026-06-16
AI Q&A
2025-09-15
EPSS Evaluated
2026-06-15
NVD
CVE-2023-53177
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
linux linux_kernel From 5.16 (inc) to 6.1.39 (exc)
linux linux_kernel From 6.2 (inc) to 6.4.4 (exc)
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Exploitability
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Executive Summary

This vulnerability is in the Linux kernel's media driver for hi846. The function pm_runtime_get_if_in_use() can return negative error codes, not just nonzero values indicating device usage. During system resume from suspend, the function may return -EAGAIN because runtime power management is not yet active. This causes a subsequent pm_runtime_put() call to underflow the reference count, potentially leading to system instability or incorrect power management behavior. The fix involves properly handling the -EAGAIN return value during system resume.

Impact Analysis

This vulnerability can cause a reference count underflow during system resume from suspend, which may lead to system instability, improper device power management, or crashes. This can affect the reliability and stability of systems using the affected Linux kernel media driver.

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