CVE-2024-50156

5.5 · MEDIUM

Published Nov 7, 2024 linux CWE-476 EPSS 0.22% (12th pctl) CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Overview

CVE-2024-50156 is a medium-severity vulnerability affecting linux linux_kernel. It was published on November 7, 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:

drm/msm: Avoid NULL dereference in msm_disp_state_print_regs()

If the allocation in msm_disp_state_dump_regs() failed then

`block->state` can be NULL. The msm_disp_state_print_regs() function

_does_ have code to try to handle it with:

if (*reg)

dump_addr = *reg;

...but since "dump_addr" is initialized to NULL the above is actually

a noop. The code then goes on to dereference `dump_addr`.

Make the function print "Registers not stored" when it sees a NULL to

solve this. Since we're touching the code, fix

msm_disp_state_print_regs() not to pointlessly take a double-pointer

and properly mark the pointer as `const`.

Patchwork: https://patchwork.freedesktop.org/patch/619657/

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	>= 5.14, < 5.15.170	Affected

References

Ref git.kernel.org/stable/c/293f53263266bc4340d777268ab4328a97f041fa Ref git.kernel.org/stable/c/42cf045086feae77b212f0f66e742b91a5b566b7 Ref git.kernel.org/stable/c/563aa81fd66a4e7e6e551a0e02bcc23957cafe2f Ref git.kernel.org/stable/c/e8e9f2a12a6214080c8ea83220a596f6e1dedc6c Ref git.kernel.org/stable/c/f7ad916273483748582d97cfa31054ccb19224f3 Ref lists.debian.org/debian-lts-announce/2025/01/msg00001.html

Frequently Asked Questions

What is CVE-2024-50156?

CVE-2024-50156 is a medium-severity vulnerability affecting linux linux_kernel. It was published on November 7, 2024 and has a CVSS 3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-50156?

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-2024-50156?

How can CyberStrike help with CVE-2024-50156?

CyberStrike's AI-powered security agents can automatically detect CVE-2024-50156 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.

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