CVE-2024-57943

exfat: fix the new buffer was not zeroed before writing

HIGH
7.8
CVSS Score
Published: January 21, 2025 at 12:18 PM UTC
Updated: June 17, 2026 at 08:14 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
HIGH7.8
Exploit prediction
EPSS 0.2%
SSVC
No known exploit

Description

In the Linux kernel, the following vulnerability has been resolved: exfat: fix the new buffer was not zeroed before writing Before writing, if a buffer_head marked as new, its data must be zeroed, otherwise uninitialized data in the page cache will be written. So this commit uses folio_zero_new_buffers() to zero the new buffers before ->write_end().

Affected

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

6.12 ≤ v < 6.12.106.12 ≤ v < 6.136.13 rc16.13 rc26.13 rc36.13 rc46.13 rc56.13 rc66630ea49103c3d45461e29b0f6eb0ce750aeb8f5
Vendor states this is fixed in 942c6f91ab8d82a41650e717940b4e577173762f (fixed)
Vendor states this is fixed in 98e2fb26d1a9eafe79f46d15d54e68e014d81d8c (fixed)
Vendor states this is fixed in 6.12 (unaffected)
Vendor states this is fixed in 6.12.10 (unaffected)
Vendor states this is fixed in 6.13 (unaffected)

Remediation

No guide yet

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

References (2)

Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/942c6f91ab8d82a41650e717940b4e577173762f
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/98e2fb26d1a9eafe79f46d15d54e68e014d81d8c

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

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

CVSS

7.8HIGHCISA-ADP
Attack Vector
LOCAL
Complexity
LOW
Privileges
LOW
User Interaction
NONE
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-824

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