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NVD / CVE Program· CNA Linux

CVE-2024-53234: erofs: handle NONHEAD !delta[1] lclusters gracefully

MediumCVSS 5.5 · v3.1—No exploit Fix available

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: 0.20% (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 0bc8061ffc733a0a246b8689b2d32a3e9204f43c, 480c6c7b55aeacac800bc2a0d321ff53273045e5, 5.11; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 Release Notes.

Low priority for now. Upgrade to Linux Linux 0bc8061ffc733a0a246b8689b2d32a3e9204f43c, 480c6c7b55aeacac800bc2a0d321ff53273045e5, 5.11; cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0 Release Notes 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: erofs: handle NONHEAD !delta[1] lclusters gracefully syzbot reported a WARNING in iomap_iter_done: iomap_fiemap+0x73b/0x9b0 fs/iomap/fiemap.c:80 ioctl_fiemap fs/ioctl.c:220 [inline] Generally, NONHEAD lclusters won't have delta[1]==0, except for crafted images and filesystems created by pre-1.0 mkfs versions. Previously, it would immediately bail out if delta[1]==0, which led to inadequate decompressed lengths (thus FIEMAP is impacted). Treat it as delta[1]=1 to work around these legacy mkfs versions. `lclusterbits > 14` is illegal for compact indexes, error out too.

Published
Dec 27, 2024
Updated
Jun 17, 2026
EPSS
0.2% · 11th 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%

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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Follow CVE-2024-53234

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  • when exploit code appears or is weaponized
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  • 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

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

    • 96a85becb811ca2ce21a21721f1544d342ae431e, 8c723eef989bc419585237daa467b787ddca5415, 5.15affected
    • d95ae5e25326092d61613acf98280270dde22778 and later · before 75a0a6dde803e7a3af700da8da9a361b49f69ebaaffected · git
    • d95ae5e25326092d61613acf98280270dde22778 and later · before f466641debcbea8bdf78d1b63a6270aadf9301bfaffected · git
    • d95ae5e25326092d61613acf98280270dde22778 and later · before 480c6c7b55aeacac800bc2a0d321ff53273045e5affected · git
    • d95ae5e25326092d61613acf98280270dde22778 and later · before daaf68fef4b2ff97928227630021d37b27a96655affected · git
    • d95ae5e25326092d61613acf98280270dde22778 and later · before 0bc8061ffc733a0a246b8689b2d32a3e9204f43caffected · git
    • 5.4.251 and later · before 5.5affected · semver
    • 5.10.188 and later · before 5.11affected · semver
    • before 5.15not affected · semver
    • 6.1.127 and later · up to and including 6.1.*not affected · semver
Affected versions · NVD (6)

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

  • linux linux kernel5.4.251 and later · before 5.5
  • linux linux kernel5.10.188 and later · before 5.11
  • linux linux kernel5.15 and later · before 6.1.127
  • linux linux kernel6.2 and later · before 6.6.64
  • linux linux kernel6.7 and later · before 6.11.11
  • linux linux kernel6.12 and later · before 6.12.2

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.128-16.1.128-1
Debian:13linuxbefore 6.12.3-16.12.3-1

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-2024-53232Dec 27, 2024 · iommu/s390: Implement blocking domain
    22Monitor
  • ← EarlierCVE-2024-53233Dec 27, 2024 · unicode: Fix utf8_load() error path
    22Monitor
  • Later →CVE-2024-53235Dec 27, 2024 · erofs: fix file-backed mounts over FUSE
    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 Linux0bc8061ffc733a0a246b8689b2d32a3e9204f43cVendor (CNA)
Linux Linux480c6c7b55aeacac800bc2a0d321ff53273045e5Vendor (CNA)
Linux Linux5.11Vendor (CNA)
Linux Linux5.5Vendor (CNA)
Linux Linux75a0a6dde803e7a3af700da8da9a361b49f69ebaVendor (CNA)
Linux Linuxdaaf68fef4b2ff97928227630021d37b27a96655Vendor (CNA)
Linux Linuxf466641debcbea8bdf78d1b63a6270aadf9301bfVendor (CNA)
cbl2 kernel 5.15.202.1-1 on CBL-Mariner 2.0Release NotesMicrosoft (MSRC)
debian:linux6.1.128-1 · Debian:12Package 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.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

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.

References

Show all references (5 more)

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

All records