CVE-2024-36972 remediation guide

Linux Linux, linux_kernel, linux kernel

In the Linux kernel, the following vulnerability has been resolved: af_unix: Update unix_sk(sk)->oob_skb under sk_receive_queue lock. Billy Jheng Bing-Jhong reported a race between __unix_gc() and queue_oob(). __unix_gc() tries to garbage-collect close()d inflight sockets, and then if the socket has MSG_OOB in unix_sk(sk)->oob_skb, GC will drop the reference and set NULL to it locklessly. However, the peer socket still can send MSG_OOB message and queue_oob() can update unix_sk(sk)->oob_skb concurrently, leading NULL pointer dereference. [0] To fix the issue, let's update unix_sk(sk)->oob_s...

Open CVE record

ProductLinux Linux, linux_kernel, linux kernel

Affected versions>= 4fe505c63aa3273135a57597fda761e9aecc7668 < 518a994aa0b87d96f1bc6678a7035df5d1fcd7a1, >= e0e09186d8821ad59806115d347ea32efa43ca4b < 4bf6964451c3cb411fbaa1ae8b214b3d97a59bf1, >= b74aa9ce13d02b7fd37c5325b99854f91b9b4276 < d59ae9314b97e01c76a4171472441e55721ba636, >= 1279f9d9dec2d7462823a18c29ad61359e0a007d < 4708f49add84a57ce0ccc7bf9a6269845c631cc3, >= 1279f9d9dec2d7462823a18c29ad61359e0a007d < 9841991a446c87f90f66f4b9fee6fe934c1336a2, >= 82ae47c5c3a6b27fdc0f9e83c1499cb439c56140, >= 5.15.149 < 5.15.161, >= 6.1.78 < 6.1.93, >= 6.6.17 < 6.6.33, >= 6.7.5 < 6.8, >= 6.8, >= 4fe505c63aa3 < 518a994aa0b8, >= e0e09186d882 < 4bf6964451c3, >= b74aa9ce13d0 < d59ae9314b97, >= 1279f9d9dec2 < 4708f49add84, >= 1279f9d9dec2 < 9841991a446c, >= 6.7.5 < 6.9.4

Fixed versions5.15.161, 6.1.93, 6.6.33, 6.9.4

Priority basisReview · CVSS 7.8 · EPSS 0.49%

Identify the affected asset

Confirm whether Linux Linux, linux_kernel, linux kernel is installed, record the deployed version and installation path, and identify exposed interfaces.

Record the product name, package or appliance identifier, and installed version.
Identify internet-facing, administrative, API, and internal access paths.
Preserve the pre-change configuration and relevant service logs.

Validate the affected-version match

Compare the deployed version with the affected range: >= 4fe505c63aa3273135a57597fda761e9aecc7668 < 518a994aa0b87d96f1bc6678a7035df5d1fcd7a1, >= e0e09186d8821ad59806115d347ea32efa43ca4b < 4bf6964451c3cb411fbaa1ae8b214b3d97a59bf1, >= b74aa9ce13d02b7fd37c5325b99854f91b9b4276 < d59ae9314b97e01c76a4171472441e55721ba636, >= 1279f9d9dec2d7462823a18c29ad61359e0a007d < 4708f49add84a57ce0ccc7bf9a6269845c631cc3, >= 1279f9d9dec2d7462823a18c29ad61359e0a007d < 9841991a446c87f90f66f4b9fee6fe934c1336a2, >= 82ae47c5c3a6b27fdc0f9e83c1499cb439c56140, >= 5.15.149 < 5.15.161, >= 6.1.78 < 6.1.93, >= 6.6.17 < 6.6.33, >= 6.7.5 < 6.8, >= 6.8, >= 4fe505c63aa3 < 518a994aa0b8, >= e0e09186d882 < 4bf6964451c3, >= b74aa9ce13d0 < d59ae9314b97, >= 1279f9d9dec2 < 4708f49add84, >= 1279f9d9dec2 < 9841991a446c, >= 6.7.5 < 6.9.4. Treat incomplete inventory results as unresolved.

Prioritize with independent signals

The CVSS severity warrants an early asset and exposure review. Combine this signal with asset criticality, exposure, compensating controls, and business impact.

Apply supported remediation

Follow the vendor advisory or supported update path. Current fixed-version status: 5.15.161, 6.1.93, 6.6.33, 6.9.4. Preserve configuration and rollback material before change.

Verify the result

Confirm the resulting version, service health, authentication and access paths, monitoring coverage, and relevant security logs.

Confirm the expected version and package state.
Run a functional health check for critical service paths.
Review authentication, error, application, and security monitoring logs.
Reassess exposure if the supported fix cannot be applied.

Operational boundary

This page does not replace the vendor advisory, support contract, change-management process, or recovery plan. Do not infer that an asset is unaffected from an incomplete inventory query or a missing fixed-version field.