CVE-2026-80728 PUBLISHED

Revert "drm/amdgpu: fix aperture mapping leak"

Assigner: Linux
Reserved: 26.08.2026 Published: 03.09.2026 Updated: 03.09.2026

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

Revert "drm/amdgpu: fix aperture mapping leak"

devres teardown is LIFO. The aperture devres node was registered after the DRM device node, so devres_release_all() unmaps the aperture before the DRM device release callback fires amdgpu_device_fini_sw(). IP sw_fini callbacks (e.g. vcn_v4_0_sw_fini) write to fw_shared through a pointer derived from aper_base_kaddr, causing a kernel page fault on probe failure / rollback:

BUG: unable to handle page fault ... PMD 0 RIP: vcn_v4_0_sw_fini+0x7b/0x170 [amdgpu] Call Trace: amdgpu_device_fini_sw amdgpu_driver_release_kms devm_drm_dev_init_release devres_release_all

This reverts commit d871e99879cb5fd1fa798b006b4888887e63a17a.

(cherry picked from commit 336e0cd576817ac64a4b394ca2b3680029f3e37f)

Product Status

Vendor Linux
Product Linux
Versions Default: unaffected
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 96d26143882f9cb47dcc1f3dd4e26d047e53ab9b (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to 496846a9411136eb9e86ad4f4e62d751bd1e1db5 (excl.)
  • affected from 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 to b96c529cd2551b78316a4afa3237b2ed96ba03c8 (excl.)
  • affected from 0 to 6.6.152 (excl.)
  • affected from 0 to 6.12.104 (excl.)
  • affected from 0 to 6.18.45 (excl.)
  • affected from 0 to 7.1.9 (excl.)
Vendor Linux
Product Linux
Versions Default: affected
  • unaffected from 6.6.152 to 6.6.* (incl.)
  • unaffected from 6.12.104 to 6.12.* (incl.)
  • unaffected from 6.18.45 to 6.18.* (incl.)
  • unaffected from 7.1.9 to 7.1.* (incl.)
  • unaffected from 7.2 to * (incl.)

References