CVE-2026-80728

Not scored yetLast modified Oct 30, 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)

Metrics

No CVSS score has been published yet.

Affected software

Source: the vendor's advisory (CNA). NVD analysis pending.

VendorProductVersions
LinuxLinux>= 67bc3647e418e23dc0d17604bdba634a73de809f, < 7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a; >= a343d028ad6c174da8dc6af560c51e6d140a6727, < 96d26143882f9cb47dcc1f3dd4e26d047e53ab9b; >= 6405c4e75b3bcf0e72bd7a0ff5f1ed0c475e23aa, < a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d; >= f5988b5c300a32ff751724ffd33d5a8d5873e4a7, < 496846a9411136eb9e86ad4f4e62d751bd1e1db5; >= ea772a440d56b285f4d491affac50ecd41f6b402, < b96c529cd2551b78316a4afa3237b2ed96ba03c8; 8cf4724ea4f23c438af87a6cd0582a3372d30da9; >= 6.1.191, < 6.2
LinuxLinux>= 6.6.148, < 6.6.152; >= 6.12.101, < 6.12.104; >= 6.18.42, < 6.18.45; >= 7.1.6, < 7.1.9

References

Timeline

Published
Sep 3, 2026
Last modified
Oct 30, 2026
NVD status
Received

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CVE-2026-80728: Unscored | Vulnix