CVE-2022-48944: sched: Fix yet more sched_fork() races
Vulnerability summary
CVE-2022-48944 is a medium (CVSS 5.5) vulnerability in linux. EPSS estimates a 0.21% chance of exploitation in the next 30 days, higher than 11.1% of scored vulnerabilities.
Not severe (CVSS 5.5, local access); no exploitation reported by the 5 checked sources
Source freshness unavailable
How is this decided?Advisory lineage
Upstream 0 · Downstream 5 · Related 5Timeline
- 30-08-2024PublishedVulnerability first disclosed.
- 23-05-2026Last modifiedVulnerability information updated.
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.
CVSS metrics
3 scores · 3 sources · 1 version- OSV · UbuntuEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
- OSV · DebianEcosystem advisory · calculated5.5MediumCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
EPSS trend
Probability
0.21%
Chance of exploitation in the next 30 days
Percentile
11%
Versus all other CVEs
30-day change
No change 0.00 pp
From 0.21% on 04-10-2026
Known exploited
Compare KEV catalogs
CISA KEVNot in the CISA KEV catalog.
ENISA CNWNot in the ENISA CNW catalog.
CIRCLNot in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeNo weakness data has been published for this record.
Affected systems
Known conditions: local access, low-privilege account, no user interaction (CVSS vector). Other conditions: not stated in public data.
Ubuntu75 products
- linux-allwinner-5.19All versions (No fix recorded)
- linux-aws-5.0All versions (No fix recorded)
- linux-aws-5.11All versions (No fix recorded)
- linux-aws-5.13All versions (No fix recorded)
- linux-aws-5.19All versions (No fix recorded)
Linux2 products
- linux≥ 3869eecf050416a1d19bac60926f6b5d64b0aa58, < 3411613611a5cddf7e80908010dc87cb527dd13b | ≥ 4ef0c5c6b5ba1f38f0ea1cedad0cad722f00c14a, < c65cfd89cef669d90c59f3bf150af6458137a04f | ≥ 4ef0c5c6b5ba1f38f0ea1cedad0cad722f00c14a, < b1e8206582f9d680cff7d04828708c8b6ab32957 | c85c6fadbef0a3eab41540ea628fa8fe8928c820 | 25d40b828fb855ee62e1039c65a666c9afd60786 | ≥ 5.15.3, < 5.15.27 | ≥ 5.10.80, < 5.11 | ≥ 5.14.19, < 5.15 | 5.16
- linux_kernelEOL≥ 5.15.3, < 5.15.27 | ≥ 5.16, < 5.16.13 | 5.10.80 | 5.14.19
Debian1 product
- linux< 5.16.14-1
3 vendors · 78 products
