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CVE-2024-36476

9.8 · CRITICAL
Published Jan 15, 2025 linux CWE-476 EPSS 0.64% (48th pctl)

Overview

CVE-2024-36476 is a critical-severity vulnerability affecting linux linux_kernel. It was published on January 15, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical Description

In the Linux kernel, the following vulnerability has been resolved:

RDMA/rtrs: Ensure 'ib_sge list' is accessible

Move the declaration of the 'ib_sge list' variable outside the

'always_invalidate' block to ensure it remains accessible for use

throughout the function.

Previously, 'ib_sge list' was declared within the 'always_invalidate'

block, limiting its accessibility, then caused a

'BUG: kernel NULL pointer dereference'[1].

? __die_body.cold+0x19/0x27

? page_fault_oops+0x15a/0x2d0

? search_module_extables+0x19/0x60

? search_bpf_extables+0x5f/0x80

? exc_page_fault+0x7e/0x180

? asm_exc_page_fault+0x26/0x30

? memcpy_orig+0xd5/0x140

rxe_mr_copy+0x1c3/0x200 [rdma_rxe]

? rxe_pool_get_index+0x4b/0x80 [rdma_rxe]

copy_data+0xa5/0x230 [rdma_rxe]

rxe_requester+0xd9b/0xf70 [rdma_rxe]

? finish_task_switch.isra.0+0x99/0x2e0

rxe_sender+0x13/0x40 [rdma_rxe]

do_task+0x68/0x1e0 [rdma_rxe]

process_one_work+0x177/0x330

worker_thread+0x252/0x390

? __pfx_worker_thread+0x10/0x10

This c

Remediation

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

Affected Products

Vendor Product Versions Status
linux linux_kernel >= 5.8, < 5.10.233 Affected

Frequently Asked Questions

What is CVE-2024-36476?

CVE-2024-36476 is a critical-severity vulnerability affecting linux linux_kernel. It was published on January 15, 2025 and has a CVSS 3.1 base score of 9.8 (CRITICAL).

How severe is CVE-2024-36476?

This vulnerability has a CVSS 3.1 base score of 9.8, rated CRITICAL. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-36476?

Check the references section for vendor advisories and patches from linux. Update linux_kernel to the latest patched version. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-36476?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-36476 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.