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CVE PROGRAM SOURCE RECORD7.8 High

CVE-2026-93175

drm/amd/display: Fix dangling pointer in CRTC reset function

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Status
Published
Published
Updated
Assigning organization
Linux

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

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • e7b07ceef2a650e5ed8ca37997689e086c680daf to < 0c311d5fcfcd4e83c1aeeb4fccb04861be3357a9affected
  • e7b07ceef2a650e5ed8ca37997689e086c680daf to < ef3293c87a79f734d506769ff86f99bf1bad522eaffected
  • e7b07ceef2a650e5ed8ca37997689e086c680daf to < 9de069b724f3614ed7dd55bfbb37c434db54e128affected
  • e7b07ceef2a650e5ed8ca37997689e086c680daf to < 3a03827bb3cda1527aa923f18160c449f2b4cf2caffected
  • e7b07ceef2a650e5ed8ca37997689e086c680daf to < 32bd68edbc6cbcfac0e4033b64f0bcadbf0efef5affected
  • e7b07ceef2a650e5ed8ca37997689e086c680daf to < 0aeed866cb938943908c3ba46422128e49d2d080affected

Linux Linux

Default version status: affected

  • 4.15affected
  • 0 to < 4.15unaffected
  • 6.1.191 to ≤ 6.1.*unaffected
  • 6.6.160 to ≤ 6.6.*unaffected
  • 6.12.114 to ≤ 6.12.*unaffected
  • 6.18.57 to ≤ 6.18.*unaffected
  • 7.2.6 to ≤ 7.2.*unaffected
  • 7.3 to ≤ *unaffected

References