What is CVE-2024-47733?

CVE-2024-47733 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10, classified as a Missing Release of Resource after Effective Lifetime flaw (CWE-772), affecting Linux kernel versions from 6.8 onward and patched in 6.10.13, 6.11.2 and 6.12. CVE-2024-47733 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

What is the CVSS score for CVE-2024-47733?

CVE-2024-47733 has a CVSS score of 5.5 out of 10, rated Medium severity. The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.

Is there a patch available for CVE-2024-47733?

Yes, CVE-2024-47733 has been patched. Fixed versions include 6.10.13, 6.11.2 and 6.12. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.

Is CVE-2024-47733 actively exploited?

CVE-2024-47733 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

CVE-2024-47733

Medium

In the Linux kernel, the following vulnerability has been resolved: netfs: Delete subtree of 'fs/netfs' when netfs module exits In netfs_init() or fscache_proc_init(), we create dentry under 'fs/netfs', but in netfs_exit(), we only delete the proc entry of 'fs/netfs' without deleting its subtree. This triggers the following WARNING: ================================================================== remove_proc_entry: removing non-empty directory 'fs/netfs', leaking at least 'requests' WARNING: CPU: 4 PID: 566 at fs/proc/generic.c:717 remove_proc_entry+0x160/0x1c0 Modules linked in: netfs(-) CPU: 4 UID: 0 PID: 566 Comm: rmmod Not tainted 6.11.0-rc3 #860 RIP: 0010:remove_proc_entry+0x160/0x1c0 Call Trace: <TASK> netfs_exit+0x12/0x620 [netfs] __do_sys_delete_module.isra.0+0x14c/0x2e0 do_syscall_64+0x4b/0x110 entry_SYSCALL_64_after_hwframe+0x76/0x7e ================================================================== Therefore use remove_proc_subtree() instead of remove_proc_entry() to fix the above problem.

Package Linux Kernel

Published 2024-10-21

Last modified 2024-10-23

CVSS version 3.1

Patch available

Yes

CVSS 3.1 score

5.5

out of 10

Medium

Attack Vector

Local

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

Low

Integrity

None

Availability

High

Vector string

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

Weakness type

CWE-772

CVE-2024-47733 is a Missing Release of Resource after Effective Lifetime vulnerability

What is Missing Release of Resource after Effective Lifetime?

The product does not release a resource after its effective lifetime has ended. Learn more on MITRE CWE

Affected versions

Linux kernel versions 6.8 and later are affected. Fixed in 6.10.13, 6.11.2, 6.12 and their respective stable series.

Affected from

≥ 6.8

Fixed in

✓ 6.10.13 6.10.x ✓ 6.11.2 6.11.x ✓ 6.12

References

3 total

Kernel Git
https://git.kernel.org/stable/c/3c58a9575e02c2b90a3180007d57105ceaa7c246

Patch
Kernel Git
https://git.kernel.org/stable/c/603f95cefbee06a31b03137b777f03e3c2163d72

Patch
Kernel Git
https://git.kernel.org/stable/c/7a9eaf97d56625e55b31a7beb558e1ee185ca461

Patch

Details

CVE ID CVE-2024-47733

Severity Medium

CVSS score 5.5 / 10

CVSS version 3.1

Published 2024-10-21

Modified 2024-10-23

KEV No

Patch

Yes

Package linux

Frequently asked questions

What is CVE-2024-47733?

CVE-2024-47733 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as a Missing Release of Resource after Effective Lifetime flaw (CWE-772) . It affects Linux kernel versions from 6.8 onward and has been patched in 6.10.13, 6.11.2 and 6.12. CVE-2024-47733 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.
What is the CVSS score for CVE-2024-47733?

CVE-2024-47733 has a CVSS score of 5.5 out of 10, rated Medium severity (CVSS 3.1). The vector string is CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H.
Is there a patch available for CVE-2024-47733?

Yes. CVE-2024-47733 has been patched. Fixed versions include 6.10.13, 6.11.2 and 6.12. If you are running Linux kernel 6.8 or later up to the fix versions, apply the relevant patch for your kernel branch.
Is CVE-2024-47733 actively exploited?

No. CVE-2024-47733 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.