What is CVE-2024-56729?

CVE-2024-56729 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10, classified as a Memory Leak flaw (CWE-401), affecting Linux kernel versions from 6.1 onward and patched in 6.6.64, 6.11.11, 6.12.2 and others. CVE-2024-56729 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-56729?

CVE-2024-56729 has a CVSS score of 4.7 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-56729?

Yes, CVE-2024-56729 has been patched. Fixed versions include 6.6.64, 6.11.11, 6.12.2 and others. If you are running Linux kernel 6.1 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-56729 actively exploited?

CVE-2024-56729 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is Memory Leak (CWE-401)?

The product does not release memory after use, causing gradual resource exhaustion. See MITRE CWE for full details: https://cwe.mitre.org/data/definitions/401.html

CVE-2024-56729

Medium

In the Linux kernel, the following vulnerability has been resolved: smb: Initialize cfid->tcon before performing network ops Avoid leaking a tcon ref when a lease break races with opening the cached directory. Processing the leak break might take a reference to the tcon in cached_dir_lease_break() and then fail to release the ref in cached_dir_offload_close, since cfid->tcon is still NULL.

Package Linux Kernel

Published 2024-12-29

Last modified 2025-10-01

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

4.7

out of 10

Medium

Attack Vector

Local

Attack Complexity

High

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

High

Vector string

CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness type

CWE-401

CVE-2024-56729 is a Memory Leak vulnerability

What is Memory Leak?

The product does not release memory after use, causing gradual resource exhaustion. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.1 and later are affected. Fixed in 6.6.64, 6.11.11, 6.12.2, 6.13 and their respective stable series.

Affected from

≥ 6.1

Fixed in

✓ 6.6.64 6.6.x ✓ 6.11.11 6.11.x ✓ 6.12.2 6.12.x ✓ 6.13

References

4 total

Kernel Git
https://git.kernel.org/stable/c/1b9ab6b648f89441c8a13cb3fd8ca83ffebc5262

Patch
Kernel Git
https://git.kernel.org/stable/c/4b216c8f9c7d84ef7de33ca60b97e08e03ef3292

Patch
Kernel Git
https://git.kernel.org/stable/c/625e2357c8fcfae6e66dcc667dc656fe390bab15

Patch
Kernel Git
https://git.kernel.org/stable/c/c353ee4fb119a2582d0e011f66a76a38f5cf984d

Patch

Details

CVE ID CVE-2024-56729

Severity Medium

CVSS score 4.7 / 10

CVSS version 3.1

Published 2024-12-29

Modified 2025-10-01

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-56729?

CVE-2024-56729 is a Medium severity Linux kernel vulnerability with a CVSS score of 4.7 out of 10 , classified as a Memory Leak flaw (CWE-401) . It affects Linux kernel versions from 6.1 onward and has been patched in 6.6.64, 6.11.11, 6.12.2 and others. CVE-2024-56729 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-56729?

CVE-2024-56729 has a CVSS score of 4.7 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-56729?

Yes. CVE-2024-56729 has been patched. Fixed versions include 6.6.64, 6.11.11, 6.12.2 and others. If you are running Linux kernel 6.1 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-56729 actively exploited?

No. CVE-2024-56729 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.