CVE-2023-52498
In the Linux kernel, the following vulnerability has been resolved: PM: sleep: Fix possible deadlocks in core system-wide PM code It is reported that in low-memory situations the system-wide resume core code deadlocks, because async_schedule_dev()…
Does this matter?
Lower severity and a low EPSS score (0.24%). Track it; it rarely justifies an emergency change on its own.
Description
In the Linux kernel, the following vulnerability has been resolved: PM: sleep: Fix possible deadlocks in core system-wide PM code It is reported that in low-memory situations the system-wide resume core code deadlocks, because async_schedule_dev() executes its argument function synchronously if it cannot allocate memory (and not only in that case) and that function attempts to acquire a mutex that is already held. Executing the argument function synchronously from within dpm_async_fn() may also be problematic for ordering reasons (it may cause a consumer device's resume callback to be invoked before a requisite supplier device's one, for example). Address this by changing the code in question to use async_schedule_dev_nocall() for scheduling the asynchronous execution of device suspend and resume functions and to directly run them synchronously if async_schedule_dev_nocall() returns false.
- CVSS 3.1
- 5.5 MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- EPSS
- 0.24% probability · 15th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-667
- Affected
- linux/linux kernel
- Source
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
References
- https://git.kernel.org/stable/c/7839d0078e0d5e6cc2fa0b0dfbee71de74f1e557Patch
- https://git.kernel.org/stable/c/9bd3dce27b01c51295b60e1433e1dadfb16649f7Patch
- https://git.kernel.org/stable/c/a1d62c775b07213c73f81ae842424c74dd14b5f0Patch
- https://git.kernel.org/stable/c/e1c9d32c98309ae764893a481552d3f99d46cb34Patch
- https://git.kernel.org/stable/c/e681e29d1f59a04ef773296e4bebb17b1b79f8fePatch
- https://git.kernel.org/stable/c/f46eb832389f162ad13cb780d0b8cde93641990dPatch
- https://git.kernel.org/stable/c/7839d0078e0d5e6cc2fa0b0dfbee71de74f1e557Patch
- https://git.kernel.org/stable/c/9bd3dce27b01c51295b60e1433e1dadfb16649f7Patch
- https://git.kernel.org/stable/c/a1d62c775b07213c73f81ae842424c74dd14b5f0Patch
- https://git.kernel.org/stable/c/e1c9d32c98309ae764893a481552d3f99d46cb34Patch
- https://git.kernel.org/stable/c/e681e29d1f59a04ef773296e4bebb17b1b79f8fePatch
- https://git.kernel.org/stable/c/f46eb832389f162ad13cb780d0b8cde93641990dPatch
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.htmlPatch
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.