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CVE-2022-48944· NVD / CVE Program· CNA Linux

sched: Fix yet more sched_fork() races

Noroxi assessment

Priority: Monitor (action score 22/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.21% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 3411613611a5cddf7e80908010dc87cb527dd13b, 5.11, 5.15.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 3411613611a5cddf7e80908010dc87cb527dd13b, 5.11, 5.15 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Aug 30, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 10th percentile
CWE
—

Report tools

JSON

Action score

22

Monitor

Low priority for now.

CVSS
22 / 40 · 5.5 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.2%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
partial

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2022-48944

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel5.15.3 and later · before 5.15.27
  • linux linux kernel5.16 and later · before 5.16.13
  • linux linux kernel5.10.80
  • linux linux kernel5.14.19

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • c85c6fadbef0a3eab41540ea628fa8fe8928c820, 25d40b828fb855ee62e1039c65a666c9afd60786, 5.16affected
    • 3869eecf050416a1d19bac60926f6b5d64b0aa58 and later · before 3411613611a5cddf7e80908010dc87cb527dd13baffected · git
    • 4ef0c5c6b5ba1f38f0ea1cedad0cad722f00c14a and later · before c65cfd89cef669d90c59f3bf150af6458137a04faffected · git
    • 4ef0c5c6b5ba1f38f0ea1cedad0cad722f00c14a and later · before b1e8206582f9d680cff7d04828708c8b6ab32957affected · git
    • 5.15.3 and later · before 5.15.27affected · semver
    • 5.10.80 and later · before 5.11affected · semver
    • 5.14.19 and later · before 5.15affected · semver
    • before 5.16not affected · semver
    • 5.15.27 and later · up to and including 5.15.*not affected · semver
    • 5.16.13 and later · up to and including 5.16.*not affected · semver

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 5.16.14-15.16.14-1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-64kbbefore 5.14.21-150400.24.136.15.14.21-150400.24.136.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-docsbefore 5.14.21-150400.24.136.15.14.21-150400.24.136.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-obs-buildbefore 5.14.21-150400.24.136.15.14.21-150400.24.136.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-sourcebefore 5.14.21-150400.24.136.15.14.21-150400.24.136.1
SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSkernel-symsbefore 5.14.21-150400.24.136.15.14.21-150400.24.136.1
SUSE:Linux Enterprise Live Patching 15 SP4kernel-livepatch-SLE15-SP4_Update_32before 1-150400.9.3.11-150400.9.3.1
SUSE:Linux Enterprise Live Patching 15 SP5kernel-livepatch-SLE15-SP5_Update_20before 1-150500.11.3.11-150500.11.3.1
SUSE:Linux Enterprise Live Patching 15 SP5kernel-livepatch-SLE15-SP5_Update_20before 1-150500.11.3.11-150500.11.3.1
SUSE:Linux Enterprise Live Patching 15 SP5kernel-livepatch-SLE15-SP5-RT_Update_21before 1-150500.11.3.11-150500.11.3.1
SUSE:Linux Enterprise Live Patching 15 SP5kernel-livepatch-SLE15-SP5-RT_Update_21before 1-150500.11.3.11-150500.11.3.1
SUSE:Linux Enterprise Micro 5.3kernel-defaultbefore 5.14.21-150400.24.136.15.14.21-150400.24.136.1
SUSE:Linux Enterprise Micro 5.3kernel-default-basebefore 5.14.21-150400.24.136.1.150400.24.66.15.14.21-150400.24.136.1.150400.24.66.1
SUSE:Linux Enterprise Micro 5.3kernel-rtbefore 5.14.21-150400.15.97.15.14.21-150400.15.97.1
SUSE:Linux Enterprise Micro 5.3kernel-source-rtbefore 5.14.21-150400.15.97.15.14.21-150400.15.97.1
SUSE:Linux Enterprise Micro 5.5kernel-defaultbefore 5.14.21-150500.55.83.15.14.21-150500.55.83.1
SUSE:Linux Enterprise Micro 5.5kernel-defaultbefore 5.14.21-150500.55.83.15.14.21-150500.55.83.1
SUSE:Linux Enterprise Micro 5.5kernel-default-basebefore 5.14.21-150500.55.83.1.150500.6.37.15.14.21-150500.55.83.1.150500.6.37.1
SUSE:Linux Enterprise Micro 5.5kernel-default-basebefore 5.14.21-150500.55.83.1.150500.6.37.15.14.21-150500.55.83.1.150500.6.37.1
SUSE:Linux Enterprise Micro 5.5kernel-rtbefore 5.14.21-150500.13.73.15.14.21-150500.13.73.1
SUSE:Linux Enterprise Micro 5.5kernel-rtbefore 5.14.21-150500.13.73.15.14.21-150500.13.73.1
SUSE:Linux Enterprise Micro 5.5kernel-source-rtbefore 5.14.21-150500.13.73.15.14.21-150500.13.73.1
SUSE:Linux Enterprise Micro 5.5kernel-source-rtbefore 5.14.21-150500.13.73.15.14.21-150500.13.73.1
SUSE:Linux Enterprise Module for Basesystem 15 SP5kernel-64kbbefore 5.14.21-150500.55.83.15.14.21-150500.55.83.1

+22

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Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux3411613611a5cddf7e80908010dc87cb527dd13bVendor (CNA)
Linux Linux5.11Vendor (CNA)
Linux Linux5.15Vendor (CNA)
Linux Linux5.15.27Vendor (CNA)
Linux Linuxb1e8206582f9d680cff7d04828708c8b6ab32957Vendor (CNA)
Linux Linuxc65cfd89cef669d90c59f3bf150af6458137a04fVendor (CNA)
debian:linux5.16.14-1 · Debian:12Package registry (OSV)
opensuse:kernel-default5.14.21-150500.55.83.1 · openSUSE:Leap Micro 5.5Package registry (OSV)
opensuse:kernel-default-base5.14.21-150500.55.83.1.150500.6.37.1 · openSUSE:Leap Micro 5.5Package registry (OSV)
suse:kernel-64kb5.14.21-150400.24.136.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:kernel-64kb5.14.21-150500.55.83.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP5Package registry (OSV)
suse:kernel-azure5.14.21-150500.33.69.1 · SUSE:Linux Enterprise Module for Public Cloud 15 SP5Package registry (OSV)
suse:kernel-default5.14.21-150400.24.136.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)
suse:kernel-default5.14.21-150500.55.83.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-default-base5.14.21-150400.24.136.1.150400.24.66.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)
suse:kernel-default-base5.14.21-150500.55.83.1.150500.6.37.1 · SUSE:Linux Enterprise Micro 5.5Package registry (OSV)
suse:kernel-docs5.14.21-150400.24.136.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:kernel-docs5.14.21-150500.55.83.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP5Package registry (OSV)
suse:kernel-livepatch-SLE15-SP4_Update_321-150400.9.3.1 · SUSE:Linux Enterprise Live Patching 15 SP4Package registry (OSV)
suse:kernel-livepatch-SLE15-SP5_Update_201-150500.11.3.1 · SUSE:Linux Enterprise Live Patching 15 SP5Package registry (OSV)
suse:kernel-obs-build5.14.21-150400.24.136.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:kernel-obs-build5.14.21-150500.55.83.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP5Package registry (OSV)
suse:kernel-rt5.14.21-150400.15.97.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)
suse:kernel-source5.14.21-150400.24.136.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:kernel-source5.14.21-150500.55.83.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP5Package registry (OSV)
suse:kernel-source-rt5.14.21-150400.15.97.1 · SUSE:Linux Enterprise Micro 5.3Package registry (OSV)
suse:kernel-syms5.14.21-150400.24.136.1 · SUSE:Linux Enterprise High Performance Computing 15 SP4-ESPOSPackage registry (OSV)
suse:kernel-syms5.14.21-150500.55.83.1 · SUSE:Linux Enterprise Module for Development Tools 15 SP5Package registry (OSV)
suse:kernel-zfcpdump5.14.21-150400.24.136.1 · SUSE:Linux Enterprise Server 15 SP4-LTSSPackage registry (OSV)
suse:kernel-zfcpdump5.14.21-150500.55.83.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP5Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

EPSS, last 120 days

FIRST EPSS daily score; only changes of 0.01 or more are recorded (step chart).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

No nightly-computed relations.

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
none
Integrity
none
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
None
Integrity impact
None
Availability impact
High

Weakness class (CWE)

—

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

nvd-primary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

MITRE has no CAPEC/ATT&CK mapping for this CWE.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

All records