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CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-80728

Revert "drm/amdgpu: fix aperture mapping leak"

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Status
Published
Published
Updated
Assigning organization
Linux

Description

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)

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

  • 67bc3647e418e23dc0d17604bdba634a73de809f to < 7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2aaffected
  • a343d028ad6c174da8dc6af560c51e6d140a6727 to < 96d26143882f9cb47dcc1f3dd4e26d047e53ab9baffected
  • 6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa to < a2e326c52c4bcecc033cd3ca2733fdbe30fbf55daffected
  • f5988b5c300a32ff751724ffd33d5a8d5873e4a7 to < 496846a9411136eb9e86ad4f4e62d751bd1e1db5affected
  • ea772a440d56b285f4d491affac50ecd41f6b402 to < b96c529cd2551b78316a4afa3237b2ed96ba03c8affected
  • 8cf4724ea4f23c438af87a6cd0582a3372d30da9affected
  • 6.1.191 to < 6.2affected

Linux Linux

Default version status: unaffected

  • 6.6.148 to < 6.6.152affected
  • 6.12.101 to < 6.12.104affected
  • 6.18.42 to < 6.18.45affected
  • 7.1.6 to < 7.1.9affected

References