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NVD / CVE Program· CNA Linux

CVE-2024-26602: sched/membarrier: reduce the ability to hammer on sys_membarrier

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: 0.31% (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 2441a64070b85c14eecc3728cc87e883f953f265, 24ec7504a08a67247fbe798d1de995208a8c128a, 3cd139875e9a7688b3fc715264032620812a5fa3.
  • Mentioned 2 times in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 2441a64070b85c14eecc3728cc87e883f953f265, 24ec7504a08a67247fbe798d1de995208a8c128a, 3cd139875e9a7688b3fc715264032620812a5fa3 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/membarrier: reduce the ability to hammer on sys_membarrier On some systems, sys_membarrier can be very expensive, causing overall slowdowns for everything. So put a lock on the path in order to serialize the accesses to prevent the ability for this to be called at too high of a frequency and saturate the machine.

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Feb 26, 2024
Updated
Jun 17, 2026
EPSS
0.3% · 25th 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 · 0.3%

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

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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 kernel4.14.0 and later · before 4.19.307
  • linux linux kernel4.20.0 and later · before 5.4.269
  • linux linux kernel5.5.0 and later · before 5.10.210
  • linux linux kernel5.11.0 and later · before 5.15.149
  • linux linux kernel5.16.0 and later · before 6.1.79
  • linux linux kernel6.2.0 and later · before 6.6.18
  • linux linux kernel6.7.0 and later · before 6.7.6

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

    • 4.14affected
    • 22e4ebb975822833b083533035233d128b30e98f and later · before 3cd139875e9a7688b3fc715264032620812a5fa3affected · git
    • 22e4ebb975822833b083533035233d128b30e98f and later · before 2441a64070b85c14eecc3728cc87e883f953f265affected · git
    • 22e4ebb975822833b083533035233d128b30e98f and later · before db896bbe4a9c67cee377e5f6a743350d3ae4acf6affected · git
    • 22e4ebb975822833b083533035233d128b30e98f and later · before 50fb4e17df319bb33be6f14e2a856950c1577deeaffected · git
    • 22e4ebb975822833b083533035233d128b30e98f and later · before 24ec7504a08a67247fbe798d1de995208a8c128aaffected · git
    • 22e4ebb975822833b083533035233d128b30e98f and later · before b6a2a9cbb67545c825ec95f06adb7ff300a2ad71affected · git
    • 22e4ebb975822833b083533035233d128b30e98f and later · before c5b2063c65d05e79fad8029324581d86cfba7eeaaffected · git
    • 22e4ebb975822833b083533035233d128b30e98f and later · before 944d5fe50f3f03daacfea16300e656a1691c4a23affected · git
    • before 4.14not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.82-16.1.82-1
Debian:13linuxbefore 6.7.7-16.7.7-1
Red Hat:enterprise_linux:7::clientbpftoolbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientbpftool-debuginfobefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernelbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-abi-whitelistsbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-debugbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-debug-debuginfobefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-debug-develbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-debuginfobefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-debuginfo-common-x86_64before 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-develbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-docbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-toolsbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-tools-debuginfobefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-tools-libsbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientkernel-tools-libs-develbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientperfbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientperf-debuginfobefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientpython-perfbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::clientpython-perf-debuginfobefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::serverkernel-bootwrapperbefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::serverkernel-debuginfo-common-ppc64before 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7
Red Hat:enterprise_linux:7::serverkernel-debuginfo-common-ppc64lebefore 0:3.10.0-1160.114.2.el70:3.10.0-1160.114.2.el7

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2024-26600Feb 26, 2024 · phy: ti: phy-omap-usb2: Fix NULL pointer dereference for SRP
    22Monitor
  • ← EarlierCVE-2024-26601Feb 26, 2024 · ext4: regenerate buddy after block freeing failed if under fc replay
    22Monitor
  • Later →CVE-2024-26603Feb 26, 2024 · x86/fpu: Stop relying on userspace for info to fault in xsave buffer
    22Monitor

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 Linux2441a64070b85c14eecc3728cc87e883f953f265Vendor (CNA)
Linux Linux24ec7504a08a67247fbe798d1de995208a8c128aVendor (CNA)
Linux Linux3cd139875e9a7688b3fc715264032620812a5fa3Vendor (CNA)
Linux Linux50fb4e17df319bb33be6f14e2a856950c1577deeVendor (CNA)
Linux Linux944d5fe50f3f03daacfea16300e656a1691c4a23Vendor (CNA)
Linux Linuxb6a2a9cbb67545c825ec95f06adb7ff300a2ad71Vendor (CNA)
Linux Linuxc5b2063c65d05e79fad8029324581d86cfba7eeaVendor (CNA)
Linux Linuxdb896bbe4a9c67cee377e5f6a743350d3ae4acf6Vendor (CNA)
debian:linux6.1.82-1 · Debian:12Package registry (OSV)
red hat:bpftool0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:bpftool-debuginfo0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel-abi-whitelists0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel-debug0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel-debug-debuginfo0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel-debug-devel0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel-debuginfo0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel-debuginfo-common-x86_640:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel-devel0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel-doc0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage registry (OSV)
red hat:kernel-tools0:3.10.0-1160.114.2.el7 · Red Hat:enterprise_linux:7::clientPackage 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.

No history yet (it accumulates with the daily EPSS job).

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.

Credits

All researchers

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

Show all references (9 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records