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CVE-2026-80728

UnknownEPSS 0.17%

Last modified

CVE-2026-80728 is a vulnerability of currently unknown severity. 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(). EPSS estimates a 0.17% chance of exploitation in the next 30 days.

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

EPSS Probability
0.17%

6.1th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Source: CNA advisory (CVE.org). 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
Last Modified
Status
Received

Frequently Asked Questions

What is CVE-2026-80728?
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)
How severe is CVE-2026-80728?
Severity scoring for CVE-2026-80728 is pending analysis. The EPSS model estimates a 0.17% probability of exploitation in the next 30 days.
How do I fix CVE-2026-80728?
Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

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Source: NVD / NIST