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NVD / CVE Program· CNA Linux

CVE-2024-43828: ext4: fix infinite loop when replaying fast_commit

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: 0.23% (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 0619f7750f2b178a1309808832ab20d85e0ad121, 181e63cd595c688194e07332f9944b3a63193de2, 5ed0496e383cb6de120e56991385dce70bbb87c1.

Low priority for now. Upgrade to Linux Linux 0619f7750f2b178a1309808832ab20d85e0ad121, 181e63cd595c688194e07332f9944b3a63193de2, 5ed0496e383cb6de120e56991385dce70bbb87c1 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: ext4: fix infinite loop when replaying fast_commit When doing fast_commit replay an infinite loop may occur due to an uninitialized extent_status struct. ext4_ext_determine_insert_hole() does not detect the replay and calls ext4_es_find_extent_range(), which will return immediately without initializing the 'es' variable. Because 'es' contains garbage, an integer overflow may happen causing an infinite loop in this function, easily reproducible using fstest generic/039. This commit fixes this issue by unconditionally initializing the structure in function ext4_es_find_extent_range(). Thanks to Zhang Yi, for figuring out the real problem!

MediumCVSS 5.5 · v3.1—No exploit Fix available
Published
Aug 17, 2024
Updated
Oct 15, 2026
EPSS
0.2% · 14th percentile

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-2024-43828

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 kernel5.10 and later · before 5.10.224
  • linux linux kernel5.11 and later · before 5.15.165
  • linux linux kernel5.16 and later · before 6.1.103
  • linux linux kernel6.2 and later · before 6.6.44
  • linux linux kernel6.7 and later · before 6.10.3

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

    • 5.10affected
    • 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 and later · before 5ed0496e383cb6de120e56991385dce70bbb87c1affected · git
    • 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 and later · before 0619f7750f2b178a1309808832ab20d85e0ad121affected · git
    • 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 and later · before 181e63cd595c688194e07332f9944b3a63193de2affected · git
    • 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 and later · before c6e67df64783e99a657ef2b8c834ba2bf54c539caffected · git
    • 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 and later · before 81f819c537d29932e4b9267f02411cbc8b355178affected · git
    • 8016e29f4362e285f0f7e38fadc61a5b7bdfdfa2 and later · before 907c3fe532253a6ef4eb9c4d67efb71fab58c706affected · git
    • before 5.10not affected · semver
    • 5.10.224 and later · up to and including 5.10.*not affected · semver
    • 5.15.165 and later · up to and including 5.15.*not affected · semver

Package-level exposure

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

EcosystemPackageAffected rangeFix
Debian:12linuxbefore 6.1.106-16.1.106-1
Debian:13linuxbefore 6.10.3-16.10.3-1

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-2024-43819Aug 17, 2024 · kvm: s390: Reject memory region operations for ucontrol VMs
    22Monitor
  • ← EarlierCVE-2024-43824Aug 17, 2024 · PCI: endpoint: pci-epf-test: Make use of cached 'epc_features' in pci_epf_test_core_init()
    22Monitor
  • Later →CVE-2024-43830Aug 17, 2024 · leds: trigger: Unregister sysfs attributes before calling deactivate()
    31Monitor

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 Linux0619f7750f2b178a1309808832ab20d85e0ad121Vendor (CNA)
Linux Linux181e63cd595c688194e07332f9944b3a63193de2Vendor (CNA)
Linux Linux5ed0496e383cb6de120e56991385dce70bbb87c1Vendor (CNA)
Linux Linux81f819c537d29932e4b9267f02411cbc8b355178Vendor (CNA)
Linux Linux907c3fe532253a6ef4eb9c4d67efb71fab58c706Vendor (CNA)
Linux Linuxc6e67df64783e99a657ef2b8c834ba2bf54c539cVendor (CNA)
debian:linux6.1.106-1 · 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.

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.

  • CVE-2024-27032108 days apartf2fs: fix to avoid potential panic during recovery
    25Monitor
  • CVE-2022-48635111 days apartfsdax: Fix infinite loop in dax_iomap_rw()
    24Monitor
  • CVE-2024-4224010 days apartx86/bhi: Avoid warning in #DB handler due to BHI mitigation
    22Monitor
  • CVE-2024-4224610 days apartnet, sunrpc: Remap EPERM in case of connection failure in xs_tcp_setup_socket
    22Monitor
  • CVE-2024-4108819 days apartcan: mcp251xfd: fix infinite loop when xmit fails
    22Monitor
  • CVE-2024-4670127 days apartlibfs: fix infinite directory reads for offset dir
    22Monitor

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).

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)

CWE-835 · Loop with Unreachable Exit Condition ('Infinite Loop')

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 (8 more)

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

All records