CVE-2024-53090

Medium

In the Linux kernel, the following vulnerability has been resolved: afs: Fix lock recursion afs_wake_up_async_call() can incur lock recursion. The problem is that it is called from AF_RXRPC whilst holding the ->notify_lock, but it tries to take a ref on the afs_call struct in order to pass it to a work queue - but if the afs_call is already queued, we then have an extraneous ref that must be put... calling afs_put_call() may call back down into AF_RXRPC through rxrpc_kernel_shutdown_call(), however, which might try taking the ->notify_lock again. This case isn't very common, however, so defer it to a workqueue. The oops looks something like: BUG: spinlock recursion on CPU#0, krxrpcio/7001/1646 lock: 0xffff888141399b30, .magic: dead4ead, .owner: krxrpcio/7001/1646, .owner_cpu: 0 CPU: 0 UID: 0 PID: 1646 Comm: krxrpcio/7001 Not tainted 6.12.0-rc2-build3+ #4351 Hardware name: ASUS All Series/H97-PLUS, BIOS 2306 10/09/2014 Call Trace: <TASK> dump_stack_lvl+0x47/0x70 do_raw_spin_lock+0x3c/0x90 rxrpc_kernel_shutdown_call+0x83/0xb0 afs_put_call+0xd7/0x180 rxrpc_notify_socket+0xa0/0x190 rxrpc_input_split_jumbo+0x198/0x1d0 rxrpc_input_data+0x14b/0x1e0 ? rxrpc_input_call_packet+0xc2/0x1f0 rxrpc_input_call_event+0xad/0x6b0 rxrpc_input_packet_on_conn+0x1e1/0x210 rxrpc_input_packet+0x3f2/0x4d0 rxrpc_io_thread+0x243/0x410 ? __pfx_rxrpc_io_thread+0x10/0x10 kthread+0xcf/0xe0 ? __pfx_kthread+0x10/0x10 ret_from_fork+0x24/0x40 ? __pfx_kthread+0x10/0x10 ret_from_fork_asm+0x1a/0x30 </TASK>

Package Linux Kernel
Published 2024-11-21
Last modified 2025-10-01
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-674

CVE-2024-53090 is a Uncontrolled Recursion vulnerability

What is Uncontrolled Recursion?

The product does not properly control the amount of recursion which triggers resource consumption. Learn more on MITRE CWE

Affected versions

Linux kernel versions 4.15 and later are affected. Fixed in 6.11.9, 6.12 and their respective stable series.

Affected from
≥ 4.15
Fixed in
✓ 6.11.9 6.11.x ✓ 6.12

References

The following references provide additional information about CVE-2024-53090 including vendor advisories, patch commits, exploit details, and third-party analysis. Links are sourced from the NIST NVD database.

Frequently asked questions

  • What is CVE-2024-53090?

    CVE-2024-53090 is a Medium severity Linux kernel vulnerability with a CVSS score of 5.5 out of 10 , classified as an Uncontrolled Recursion flaw (CWE-674) . It affects Linux kernel versions from 4.15 onward and has been patched in 6.11.9 and 6.12. CVE-2024-53090 has not been confirmed as actively exploited and is not listed in the CISA KEV catalog.

  • What is the CVSS score for CVE-2024-53090?

    CVE-2024-53090 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-2024-53090?

    Yes — CVE-2024-53090 has been patched. Fixed versions include 6.11.9 and 6.12. If you are running Linux kernel 4.15 or later up to the fix versions, apply the relevant patch for your kernel branch.

  • Is CVE-2024-53090 actively exploited?

    No — CVE-2024-53090 has not been confirmed as actively exploited. It is not listed in the CISA Known Exploited Vulnerabilities (KEV) catalog.

  • What is Uncontrolled Recursion (CWE-674)?

    The product does not properly control the amount of recursion which triggers resource consumption. View CWE-674 on MITRE CWE →

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