CVE-2022-48944
MediumIn the Linux kernel, the following vulnerability has been resolved: sched: Fix yet more sched_fork() races Where commit 4ef0c5c6b5ba ("kernel/sched: Fix sched_fork() access an invalid sched_task_group") fixed a fork race vs cgroup, it opened up a race vs syscalls by not placing the task on the runqueue before it gets exposed through the pidhash. Commit 13765de8148f ("sched/fair: Fix fault in reweight_entity") is trying to fix a single instance of this, instead fix the whole class of issues, effectively reverting this commit.
CVSS 3.1 score
5.5
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Affected versions
Linux kernel versions
5.15.3,
5.10.80,
5.14.19,
5.16
and later are affected. Fixed in
5.15.27,
5.16.13,
5.17
and their respective stable series.
References
3 totalFrequently asked questions
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What is CVE-2022-48944?
CVE-2022-48944 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 . It affects Linux kernel versions from 5.15.3 onward and has been patched in 5.15.27, 5.16.13 and 5.17. CVE-2022-48944 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
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What is the CVSS score for CVE-2022-48944?
CVE-2022-48944 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H. -
Is there a patch available for CVE-2022-48944?
Yes. CVE-2022-48944 has been patched. Fixed versions include 5.15.27, 5.16.13 and 5.17. If you are running Linux kernel 5.15.3 or later up to the fix versions, apply the relevant patch for your kernel branch.
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Is CVE-2022-48944 actively exploited?
No. CVE-2022-48944 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.