CVE-2023-52498

2024-03-1100:00:00

ubuntu.com

linux

kernel

sleep

deadlock

fix

memory

async_schedule_dev

mutex

synchronous

async_schedule_dev_nocall

unix

AI Score

7.6

Confidence

High

EPSS

Percentile

10.3%

JSON

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.

Notes

Author	Note
rodrigo-zaiden	USN-6765-1 for linux-oem-6.5 wrongly stated that this CVE was fixed in version 6.5.0-1022.23. The mentioned notice was revoked and the state of the fix for linux-oem-6.5 was recovered to the previous state.

OSVersionArchitecturePackageVersionFilename
ubuntu20.04noarchlinux< anyUNKNOWN
ubuntu22.04noarchlinux< 5.15.0-106.116UNKNOWN
ubuntu23.10noarchlinux< 6.5.0-41.41UNKNOWN
ubuntu20.04noarchlinux-aws< anyUNKNOWN
ubuntu22.04noarchlinux-aws< 5.15.0-1061.67UNKNOWN
ubuntu23.10noarchlinux-aws< 6.5.0-1021.21UNKNOWN
ubuntu20.04noarchlinux-aws-5.15< 5.15.0-1061.67~20.04.1UNKNOWN
ubuntu22.04noarchlinux-aws-6.5< anyUNKNOWN
ubuntu20.04noarchlinux-azure< anyUNKNOWN
ubuntu22.04noarchlinux-azure< 5.15.0-1063.72UNKNOWN

OS	Version	Architecture	Package	Version	Filename
ubuntu	20.04	noarch	linux	< any	UNKNOWN
ubuntu	22.04	noarch	linux	< 5.15.0-106.116	UNKNOWN
ubuntu	23.10	noarch	linux	< 6.5.0-41.41	UNKNOWN
ubuntu	20.04	noarch	linux-aws	< any	UNKNOWN
ubuntu	22.04	noarch	linux-aws	< 5.15.0-1061.67	UNKNOWN
ubuntu	23.10	noarch	linux-aws	< 6.5.0-1021.21	UNKNOWN
ubuntu	20.04	noarch	linux-aws-5.15	< 5.15.0-1061.67~20.04.1	UNKNOWN
ubuntu	22.04	noarch	linux-aws-6.5	< any	UNKNOWN
ubuntu	20.04	noarch	linux-azure	< any	UNKNOWN
ubuntu	22.04	noarch	linux-azure	< 5.15.0-1063.72	UNKNOWN