CVE-2025-38431

smb: client: fix regression with native SMB symlinks

MEDIUM
5.5
CVSS Score
Published: July 25, 2025 at 02:22 PM UTC
Updated: June 17, 2026 at 09:16 AM UTC
1 product affected across 1 vendorLinux Kernel

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Severity
MEDIUM5.5
Exploit prediction
EPSS 0.1%

Description

In the Linux kernel, the following vulnerability has been resolved: smb: client: fix regression with native SMB symlinks Some users and customers reported that their backup/copy tools started to fail when the directory being copied contained symlink targets that the client couldn't parse - even when those symlinks weren't followed. Fix this by allowing lstat(2) and readlink(2) to succeed even when the client can't resolve the symlink target, restoring old behavior.

Affected

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

6.14 ≤ v < 6.15.56.14 ≤ v < 6.1612b466eb52d926802b6898d2cb7e67386467f54a6.146.16 rc16.16 rc26.16 rc3
Vendor states this is fixed in 6ddaf7567080c7de2e0c99efca2ee1e6b79beea5 (fixed)
Vendor states this is fixed in ff8abbd248c1f52df0c321690b88454b13ff54b2 (fixed)
Vendor states this is fixed in 6.14 (unaffected)
Vendor states this is fixed in 6.15.5 (unaffected)
Vendor states this is fixed in 6.16 (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/6ddaf7567080c7de2e0c99efca2ee1e6b79beea5
Patch
Source: 416baaa9-dc9f-4396-8d5f-8c081fb06d67
https://git.kernel.org/stable/c/ff8abbd248c1f52df0c321690b88454b13ff54b2

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-noinfo

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