CVE-2024-26648: linux kernel Null Dereference — Fix

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix variable deferencing before NULL check in edp_setup_replay() In edp_setup_replay(), 'struct dc *dc' & 'struct dmub_replay *replay' was dereferenced before the pointer 'link' & 'replay' NULL check. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:947 edp_setup_replay() warn: variable dereferenced before check 'link' (see line 933)

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CVSS v3.1 Score

5.5

MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Weakness Type (CWE)

CWE-476 CWE-476

Affected Products

Vendor	Product	Versions
linux	linux_kernel	< 6.6.15
linux	linux_kernel	6.7 — 6.7.3

References

Advisories & Patches

https://git.kernel.org/stable/c/22ae604aea14756954e1c00ae653e34d2afd2935 https://git.kernel.org/stable/c/7073934f5d73f8b53308963cee36f0d389ea857c https://git.kernel.org/stable/c/c02d257c654191ecda1dc1af6875d527e85310e7 https://git.kernel.org/stable/c/22ae604aea14756954e1c00ae653e34d2afd2935 https://git.kernel.org/stable/c/7073934f5d73f8b53308963cee36f0d389ea857c https://git.kernel.org/stable/c/c02d257c654191ecda1dc1af6875d527e85310e7

Frequently Asked Questions

What is CVE-2024-26648? +

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix variable deferencing before NULL check in edp_setup_replay() In edp_setup_replay(), 'struct dc *dc' & 'struct dmub_replay *replay' was dereferenced before the pointer 'link' & 'replay' NULL check. Fixes the below: drivers/gpu/drm/amd/amdgpu/../display/dc/link/protocols/link_edp_panel_control.c:947 edp_setup_replay() warn: variable dereferenced before check 'link' (see line 933) It has a CVSS v3.1 base score of 5.5 (MEDIUM).

How severe is CVE-2024-26648? +

CVE-2024-26648 has a CVSS v3.1 score of 5.5 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2024-26648? +

CVE-2024-26648 affects products from linux, specifically: linux_kernel. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2024-26648? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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