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NVD / CVE Program· CNA Linux

CVE-2024-36019: regmap: maple: Fix cache corruption in regcache_maple_drop()

Noroxi assessment

Priority: Monitor (action score 28/100)

  • 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: 0.24% (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 00bb549d7d63a21532e76e4a334d7807a54d9f31, 3af6c5ac72dc5b721058132a0a1d7779e443175e, 51c4440b9d3fd7c8234e6de9170a487c03506e53.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to Linux Linux 00bb549d7d63a21532e76e4a334d7807a54d9f31, 3af6c5ac72dc5b721058132a0a1d7779e443175e, 51c4440b9d3fd7c8234e6de9170a487c03506e53 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: regmap: maple: Fix cache corruption in regcache_maple_drop() When keeping the upper end of a cache block entry, the entry[] array must be indexed by the offset from the base register of the block, i.e. max - mas.index. The code was indexing entry[] by only the register address, leading to an out-of-bounds access that copied some part of the kernel memory over the cache contents. This bug was not detected by the regmap KUnit test because it only tests with a block of registers starting at 0, so mas.index == 0.

HighCVSS 7.1 · v3.1—No exploit Fix available
Published
May 30, 2024
Updated
Aug 5, 2026
EPSS
0.2% · 15th percentile

Report tools

JSON

Action score

28

Monitor

Low priority for now.

CVSS
28 / 40 · 7.1 / 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.

CNA vs NVD score

NVD
7.1
CNA · Linux
7.8
0.7 point gap

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

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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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When you'll hear from us

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  • 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 kernel6.4 and later · before 6.6.26
  • linux linux kernel6.7 and later · before 6.8.5
  • linux linux kernel6.9

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

    • 6.4affected
    • f033c26de5a5734625d2dd1dc196745fae186f1b and later · before 3af6c5ac72dc5b721058132a0a1d7779e443175eaffected · git
    • f033c26de5a5734625d2dd1dc196745fae186f1b and later · before 51c4440b9d3fd7c8234e6de9170a487c03506e53affected · git
    • f033c26de5a5734625d2dd1dc196745fae186f1b and later · before 00bb549d7d63a21532e76e4a334d7807a54d9f31affected · git
    • before 6.4not affected · semver
    • 6.6.26 and later · up to and including 6.6.*not affected · semver
    • 6.8.5 and later · up to and including 6.8.*not affected · semver
    • 6.9 and laternot affected · original_commit_for_fix

Package-level exposure

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

EcosystemPackageAffected rangeFix
AlmaLinux:9bpftoolbefore 7.3.0-427.35.1.el9_47.3.0-427.35.1.el9_4
AlmaLinux:9kernelbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64kbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-corebefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-debugbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-debug-corebefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-debug-develbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-debug-devel-matchedbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-debug-modulesbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-corebefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-debug-modules-extrabefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-develbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-devel-matchedbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-modulesbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-modules-corebefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-64k-modules-extrabefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-abi-stablelistsbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-corebefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-cross-headersbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-debugbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-debug-corebefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-debug-develbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-debug-devel-matchedbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4
AlmaLinux:9kernel-debug-modulesbefore 5.14.0-427.35.1.el9_45.14.0-427.35.1.el9_4

+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-2024-36016May 29, 2024 · tty: n_gsm: fix possible out-of-bounds in gsm0_receive()
    31Monitor
  • ← EarlierCVE-2024-36018May 30, 2024 · nouveau/uvmm: fix addr/range calcs for remap operations
    22Monitor
  • Later →CVE-2024-36021May 30, 2024 · net: hns3: fix kernel crash when devlink reload during pf initialization
    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 Linux00bb549d7d63a21532e76e4a334d7807a54d9f31Vendor (CNA)
Linux Linux3af6c5ac72dc5b721058132a0a1d7779e443175eVendor (CNA)
Linux Linux51c4440b9d3fd7c8234e6de9170a487c03506e53Vendor (CNA)
almalinux:bpftool7.3.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-427.35.1.el9_4 · AlmaLinux:9Package registry (OSV)
debian:linux6.8.9-1 · Debian:13Package registry (OSV)
red hat:bpftool-debuginfo0:7.3.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-debuginfo0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debug-devel-matched0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-debuginfo0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-64k-devel-matched0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-debuginfo0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debug-devel-matched0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo0:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
red hat:kernel-debuginfo-common-aarch640:5.14.0-427.35.1.el9_4 · Red Hat:enterprise_linux:9::appstreamPackage registry (OSV)
rocky linux:kernel0:5.14.0-427.35.1.el9_4 · Rocky Linux:9Package 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.

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
high · data can be read
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
High
Integrity impact
None
Availability impact
High

Weakness class (CWE)

CWE-125 · Out-of-bounds Read

CVSS vector

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

ATT&CK techniques

—

Change log

  1. Fix✗ → ✓

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

References

Show all references (2 more)

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

All records