CVE-2022-48944
Description
In 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.
Predictions
Heuristic predictions, AS-IS, for prioritization only.
Mitigations
Vendor advisory: debian — https://security-tracker.debian.org/tracker/CVE-2022-48944
Vendor advisory: suse — https://www.suse.com/security/cve/CVE-2022-48944.html
OS impact
| OS | Version | Status | Fixed in |
|---|---|---|---|
| sles | affected | | |
| debian | bookworm | fixed | 5.16.14-1 |
| debian | bullseye | affected | |
| debian | forky | fixed | 5.16.14-1 |
| debian | sid | fixed | 5.16.14-1 |
| debian | trixie | fixed | 5.16.14-1 |
References
Verify integrity in audit chain (admin only). AS-IS.