CVE-2024-38548 drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference

What is CVE-2024-38548?

CVE-2024-38548 is a medium-severity vulnerability in Linux kernel, published on 19 Jun 2024. It can only be exploited from the same machine or local network, with no action from the victim.

Official description

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

drm: bridge: cdns-mhdp8546: Fix possible null pointer dereference

In cdns_mhdp_atomic_enable(), the return value of drm_mode_duplicate() is assigned to mhdp_state->current_mode, and there is a dereference of it in drm_mode_set_name(), which will lead to a NULL pointer dereference on failure of drm_mode_duplicate().

Fix this bug add a check of mhdp_state->current_mode.

Weakness: CWE-476

Which versions are affected by CVE-2024-38548?

It affects 1 product.

Products include Linux kernel.

How do I fix CVE-2024-38548?

Apply the vendor's patch.

Is CVE-2024-38548 being exploited?

There is no known exploitation of CVE-2024-38548 in the wild and no public exploit code.

Other vulnerabilities in Linux kernel

• CVE-2026-53266 Linux Kernel Out-of-Bounds Write Exploited High 8.8
• CVE-2013-6282 Linux Kernel Improper Input Validation Exploited High 8.8
• CVE-2022-0185 Linux Kernel Heap-Based Buffer Overflow Exploited High 8.4
• CVE-2013-2094 Linux Kernel Privilege Escalation Exploited High 8.4
• CVE-2026-53362 Linux Kernel Unspecified Exploited High 7.8

All Linux kernel vulnerabilities

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as BELL-CVE-2024-38548, DEBIAN-CVE-2024-38548, GHSA-w69w-gv35-vqjh, UBUNTU-CVE-2024-38548.