CVE-2024-43857

f2fs: fix null reference error when checking end of zone

MEDIUM
5.5
CVSS Score
Published: August 17, 2024 at 09:24 AM UTC
Updated: June 17, 2026 at 07:51 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: f2fs: fix null reference error when checking end of zone This patch fixes a potentially null pointer being accessed by is_end_zone_blkaddr() that checks the last block of a zone when f2fs is mounted as a single device.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

6.5 ≤ v < 6.10.36.5 ≤ v < 6.116.5 ≤ v < 6.6.646.5e067dc3c6b9c419bac43c6a0be2d85f44681f863
Vendor states this is fixed in 381cbe85592c78fbaeb3e770e3e9f3bfa3e67efb (fixed)
Vendor states this is fixed in b98777309756ebe15cc9ad4e8ab64bbfaf878a3f (fixed)
Vendor states this is fixed in c82bc1ab2a8a5e73d9728e80c4c2ed87e8921a38 (fixed)
Vendor states this is fixed in 6.10.3 (unaffected)
Vendor states this is fixed in 6.11 (unaffected)
Vendor states this is fixed in 6.5 (unaffected)
Vendor states this is fixed in 6.6.64 (unaffected)

Remediation

No guide yet

No remediation guidance has been written for this CVE yet. What the record does show:

References (3)

SSVC — Action Prioritization

SSVCNo known exploitNot automatablePartial impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
NONE
Integrity
NONE
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-476

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