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CVE-2024-26615

5.5 · MEDIUM
Published Mar 11, 2024 linux CWE-476 EPSS 0.26% (17th pctl)

Overview

CVE-2024-26615 is a medium-severity vulnerability affecting linux linux_kernel. It was published on March 11, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical Description

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

net/smc: fix illegal rmb_desc access in SMC-D connection dump

A crash was found when dumping SMC-D connections. It can be reproduced

by following steps:

- run nginx/wrk test:

smc_run nginx

smc_run wrk -t 16 -c 1000 -d <duration> -H 'Connection: Close' <URL>

- continuously dump SMC-D connections in parallel:

watch -n 1 'smcss -D'

BUG: kernel NULL pointer dereference, address: 0000000000000030

CPU: 2 PID: 7204 Comm: smcss Kdump: loaded Tainted: G E 6.7.0+ #55

RIP: 0010:__smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]

Call Trace:

<TASK>

? __die+0x24/0x70

? page_fault_oops+0x66/0x150

? exc_page_fault+0x69/0x140

? asm_exc_page_fault+0x26/0x30

? __smc_diag_dump.constprop.0+0x5e5/0x620 [smc_diag]

? __kmalloc_node_track_caller+0x35d/0x430

? __alloc_skb+0x77/0x170

smc_diag_dump_proto+0xd0/0xf0 [smc_diag]

smc_diag_dump+0x26/0x60 [smc_diag]

netlink_dump+0x19f/0x320

__netlink_dump_star

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 >= 4.19, < 4.19.307 Affected

Frequently Asked Questions

What is CVE-2024-26615?

CVE-2024-26615 is a medium-severity vulnerability affecting linux linux_kernel. It was published on March 11, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26615?

This vulnerability has a CVSS 3.1 base score of 5.5, rated MEDIUM. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2024-26615?

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-2024-26615?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-26615 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.