CVE-2025-68351

exfat: fix refcount leak in exfat_find

MEDIUM
5.5
CVSS Score
Published: December 24, 2025 at 10:32 AM UTC
Updated: October 19, 2026 at 09:10 PM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.2%

Description

In the Linux kernel, the following vulnerability has been resolved: exfat: fix refcount leak in exfat_find Fix refcount leaks in `exfat_find` related to `exfat_get_dentry_set`. Function `exfat_get_dentry_set` would increase the reference counter of `es->bh` on success. Therefore, `exfat_put_dentry_set` must be called after `exfat_get_dentry_set` to ensure refcount consistency. This patch relocate two checks to avoid possible leaks.

Affected

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

6.12.23 ≤ v < 6.12.686.12.59 ≤ v < 6.136.13.11 ≤ v < 6.146.14.1 ≤ v < 6.18.20c8a1d2afd0dce0ea9257ab8c2271d8db6cb575d13940cef95491472760ca261b6713692ece9b9466.12.236.13.116.146.14 rc66.14 rc76c627bcc1896ba62ec793d0c00da74f3c93ce3ad92075758782c5edb4c67d0da9e47586a624c22f7
Vendor states this is fixed in 9aee8de970f18c2aaaa348e3de86c38e2d956c1d (fixed)
Vendor states this is fixed in d009ff8959d28d2a33aeb96a5f7e7161c421d78f (fixed)
Vendor states this is fixed in fc9ce762525e73438d31b613f18bca92a4d3d578 (fixed)
Vendor states this is fixed in 6.12.68 (unaffected)
Vendor states this is fixed in 6.14 (unaffected)
Vendor states this is fixed in 6.18.2 (unaffected)
Vendor states this is fixed in 6.19 (unaffected)

CVSS

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

Quick Info

StatusANALYZED
CWE
NVD-CWE-Other

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