---
cve: "CVE-2026-80728"
severity: "LOW"
cvss: 3.1
epss: "3.4%"
vendor: "Linux"
kev: false
exploited: false
published: "2026-09-03 13:06:11"
tags: [cve, security, low]
source: tsecurity.de CVE-Dossier
exported: "2026-09-07T07:26:19+02:00"
---

# CVE-2026-80728

> 3.1 LOW

## Beschreibung

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)

## Patch verfügbar (OSV)

- Kernel ≥ 6.6.152
- Kernel ≥ 6.12.104
- Kernel ≥ 6.18.45
- Kernel ≥ 7.1.9

## Referenzen

- <https://git.kernel.org/stable/c/496846a9411136eb9e86ad4f4e62d751bd1e1db5>
- <https://git.kernel.org/stable/c/7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a>
- <https://git.kernel.org/stable/c/96d26143882f9cb47dcc1f3dd4e26d047e53ab9b>
- <https://git.kernel.org/stable/c/a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d>
- <https://git.kernel.org/stable/c/b96c529cd2551b78316a4afa3237b2ed96ba03c8>

---
_Exportiert aus dem [tsecurity.de CVE-Dossier](https://tsecurity.de/cve?cve=CVE-2026-80728) · Datenquellen: EUVD (ENISA), NVD, OSV, CISA KEV, FIRST EPSS, Exploit-DB, BSI BITS_