CVE-2026-80728

Revert "drm/amdgpu: fix aperture mapping leak"

State: Published
Severity: Not scored
Published: Sep 3, 2026
Updated: Oct 30, 2026
Reserved: Aug 26, 2026

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)

Scores

The record has no CVSS score.

Weaknesses

The record names no weakness.

Affected Products

Product	Versions
LinuxLinux	67bc3647e418e23dc0d17604bdba634a73de809f to before 7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2aAffected a343d028ad6c174da8dc6af560c51e6d140a6727 to before 96d26143882f9cb47dcc1f3dd4e26d047e53ab9bAffected 6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa to before a2e326c52c4bcecc033cd3ca2733fdbe30fbf55dAffected f5988b5c300a32ff751724ffd33d5a8d5873e4a7 to before 496846a9411136eb9e86ad4f4e62d751bd1e1db5Affected ea772a440d56b285f4d491affac50ecd41f6b402 to before b96c529cd2551b78316a4afa3237b2ed96ba03c8Affected 8cf4724ea4f23c438af87a6cd0582a3372d30da9Affected 6.1.191 to before 6.2Affected
LinuxLinux	6.6.148 to before 6.6.152Affected 6.12.101 to before 6.12.104Affected 6.18.42 to before 6.18.45Affected 7.1.6 to before 7.1.9Affected

Product

Versions

LinuxLinux

67bc3647e418e23dc0d17604bdba634a73de809f to before 7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2aAffected
a343d028ad6c174da8dc6af560c51e6d140a6727 to before 96d26143882f9cb47dcc1f3dd4e26d047e53ab9bAffected
6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa to before a2e326c52c4bcecc033cd3ca2733fdbe30fbf55dAffected
f5988b5c300a32ff751724ffd33d5a8d5873e4a7 to before 496846a9411136eb9e86ad4f4e62d751bd1e1db5Affected
ea772a440d56b285f4d491affac50ecd41f6b402 to before b96c529cd2551b78316a4afa3237b2ed96ba03c8Affected
8cf4724ea4f23c438af87a6cd0582a3372d30da9Affected
6.1.191 to before 6.2Affected

LinuxLinux

6.6.148 to before 6.6.152Affected
6.12.101 to before 6.12.104Affected
6.18.42 to before 6.18.45Affected
7.1.6 to before 7.1.9Affected

References

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