What’s Vulnerable › Vulnerabilities

CVE-2026-93175: drm/amd/display: Fix dangling pointer in CRTC reset function

• Severity: high (CVSS 7.8 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.2% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-17 · updated 2026-10-30

Description

In the Linux kernel, the following vulnerability has been resolved: drm/amd/display: Fix dangling pointer in CRTC reset function amdgpu_dm_crtc_reset_state() frees the old state before allocating a new one. If kzalloc() fails, the function returns without updating the state pointer, leaving a dangling pointer to already freed memory. Fix this by allocating the new state first. On allocation failure, the old state remains untouched and the function safely returns. Found by Linux Verification Center (linuxtesting.org) with SVACE. [adjust for movement around current amd-staging-drm-next]

Affected products

• Linux: 4.15 — fixed in 7.3

How to fix

Upgrade to a fixed version: Linux 7.3. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/stable/c/0aeed866cb938943908c3ba46422128e49d2d080
• https://git.kernel.org/stable/c/0c311d5fcfcd4e83c1aeeb4fccb04861be3357a9
• https://git.kernel.org/stable/c/32bd68edbc6cbcfac0e4033b64f0bcadbf0efef5
• https://git.kernel.org/stable/c/3a03827bb3cda1527aa923f18160c449f2b4cf2c
• https://git.kernel.org/stable/c/9de069b724f3614ed7dd55bfbb37c434db54e128
• https://git.kernel.org/stable/c/ef3293c87a79f734d506769ff86f99bf1bad522e

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