CVE-2023-53061

ksmbd: fix possible refcount leak in smb2_open()

MEDIUM

5.5

CVSS Score

Published: May 2, 2025 at 03:55 PM UTC

Updated: June 17, 2026 at 06:44 AM 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: ksmbd: fix possible refcount leak in smb2_open() Reference count of acls will leak when memory allocation fails. Fix this by adding the missing posix_acl_release().

Affected

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

Linux Kernel · Linux

95%

5.15 ≤ v < 5.15.1055.15 ≤ v < 6.1.225.15 ≤ v < 6.2.95.15 ≤ v < 6.35.16 ≤ v < 6.1.226.2 ≤ v < 6.2.95.15 6.3 rc1 6.3 rc2 6.3 rc3e2f34481b24db2fd634b5edb0a5bd0e4d38cc6e9

Vendor states this is fixed in 2624b445544ffc1472ccabfb6ec867c199d4c95c (fixed)

Vendor states this is fixed in 303f8e58cc3ace744801dcdcabfc06ffc72ed62d (fixed)

Vendor states this is fixed in a22c49a05e5e7aa2c414fbc42c49c4c01a5c9a78 (fixed)

Vendor states this is fixed in c33344b7972225b232966f95d31f6312dcc6273d (fixed)

Vendor states this is fixed in 5.15 (unaffected)

Vendor states this is fixed in 5.15.105 (unaffected)

Vendor states this is fixed in 6.1.22 (unaffected)

Vendor states this is fixed in 6.2.9 (unaffected)

Vendor states this is fixed in 6.3 (unaffected)