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.
References
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History
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Information
Published : 2024-03-11 18:15
Updated : 2024-12-12 17:32
NVD link : CVE-2023-52498
Mitre link : CVE-2023-52498
CVE.ORG link : CVE-2023-52498
JSON object : View
Products Affected
linux
- linux_kernel
CWE
CWE-667
Improper Locking