CVE-2026-74451 PUBLISHED

drm/panthor: validate firmware interface structure sizes

Assigner: Linux
Reserved: 15.08.2026 Published: 15.08.2026 Updated: 15.08.2026

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

drm/panthor: validate firmware interface structure sizes

iface_fw_to_cpu_addr() only checks that the firmware-provided MCU virtual address points inside the shared section. The returned pointer is later used as a full firmware interface structure, so accepting an address near the end of the shared section can still lead to out-of-bounds accesses.

Pass the expected object size to iface_fw_to_cpu_addr() and reject ranges that do not fit entirely in the shared section.

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 2718d91816eeed03c09c8abe872e45f59078768c to 21c77486f5a60bb9c0433c21de62a5f25d5091f1 (excl.)
  • affected from 2718d91816eeed03c09c8abe872e45f59078768c to c835f2b0b7167584832b516c9b0a26e9180d1d0b (excl.)
  • affected from 2718d91816eeed03c09c8abe872e45f59078768c to ca41d9f3a21586bf29df53eec05152ecf2b2f94f (excl.)
  • affected from 2718d91816eeed03c09c8abe872e45f59078768c to b921b8613790a3f9e78ab64017fa7149ef0b750c (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • Version 6.10 is affected
  • unaffected from 0 to 6.10 (excl.)
  • unaffected from 6.12.103 to 6.12.* (incl.)
  • unaffected from 6.18.44 to 6.18.* (incl.)
  • unaffected from 7.1.8 to 7.1.* (incl.)
  • unaffected from 7.2-rc6 to * (incl.)

References