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CVE-2026-80728— Revert "drm/amdgpu: fix aperture mapping leak"

Quick assessment

Affected
Linux Linux
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于drm/amdgpu驱动中devres teardown机制的后进先出顺序问题，aperture devres节点注册晚于DRM设备节点，导致devres_release_all()在DRM设备释放回调触发amdgpu_device_fini_sw()前将aperture映射解除，使IP sw_fini回调（如vcn_v4_0_sw_fini）在探测失败或回滚时通过aper_base_k

AI Predicted 7.1 Difficulty: Hard EPSS 0.17% · P6

Possible ATT&CK Techniques 1 AI

T1201 · Password Policy Discovery

Affected Version Matrix 14

VendorProduct Version RangeStatus
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 96d26143882f9cb47dcc1f3dd4e26d047e53ab9b affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< a2e326c52c4bcecc033cd3ca2733fdbe30fbf55d affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< 496846a9411136eb9e86ad4f4e62d751bd1e1db5 affected
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2< b96c529cd2551b78316a4afa3237b2ed96ba03c8 affected
< 6.6.152 affected
< 6.12.104 affected
< 6.18.45 affected
… +6 more rows
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I. Basic Information for CVE-2026-80728

Vulnerability Information
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Vulnerability Title
Revert "drm/amdgpu: fix aperture mapping leak"
Source: CVE Program / CVE List V5
Vulnerability 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)
Source: CVE Program / CVE List V5
CVSS Information
N/A
Source: CVE Program / CVE List V5
Vulnerability Type
N/A
Source: CVE Program / CVE List V5
Vulnerability Title
Linux kernel 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Linux kernel是美国Linux基金会开源的一个操作系统内核。 Linux kernel存在安全漏洞，该漏洞源于drm/amdgpu驱动中devres teardown机制的后进先出顺序问题，aperture devres节点注册晚于DRM设备节点，导致devres_release_all()在DRM设备释放回调触发amdgpu_device_fini_sw()前将aperture映射解除，使IP sw_fini回调（如vcn_v4_0_sw_fini）在探测失败或回滚时通过aper_base_k
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
Linux Linux 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 ~ 7380f1bfe9d7ed3a4ca9d99a5c4df840fff9af2a -
Linux Linux 6.6.152 ~ 6.6.* -

II. Public POCs for CVE-2026-80728

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III. Intelligence Information for CVE-2026-80728

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Patches & Fixes for CVE-2026-80728 (5)

Same Patch Batch · Linux · 2026-09-03 · 32 CVEs total

CVE-2026-80726 9.3 CRITICAL KVM: x86/mmu: WARN and clear role.invalid when creating a child shadow page
CVE-2026-80734 8.8 HIGH btrfs: initialize inode mapping flags for cached inodes
CVE-2026-80745 8.4 HIGH regulator: fp9931: Fix VPOS/VNEG voltage selector table
CVE-2026-80750 8.4 HIGH pmdomain: mediatek: fix remaining %pOF after of_node_put()
CVE-2026-80752 8.4 HIGH Input: psxpad-spi - set driver data before use
CVE-2026-80753 8.4 HIGH ovpn: run deferred work on a module-owned workqueue
CVE-2026-80747 8.0 HIGH drm/amdkfd: Add bounds check for CRAT subtype length
CVE-2026-80751 7.8 HIGH pmdomain: mediatek: mfg: initialize prev_o in mtk_mfg_attach_dev()
CVE-2026-80736 7.8 HIGH thunderbolt: Fix bandwidth group reservation indexing
CVE-2026-80737 7.8 HIGH serial: amba-pl011: synchronize DMA teardown
CVE-2026-80732 7.8 HIGH ata: pata_sl82c105: fix bridge revision use-after-free
CVE-2026-80731 7.8 HIGH net: remove CAP_SYS_RAWIO zero-padding in dev_validate_header
CVE-2026-80748 7.8 HIGH mmc: loongson2: Fix sg iteration in data reorder functions
CVE-2026-80754 7.8 HIGH Input: synaptics-rmi4 - fix F55 transmitter electrode count typo
CVE-2026-80738 7.3 HIGH bpf: Check sk_state before sk_protocol in bpf_tcp_*_syncookie
CVE-2026-80735 7.3 HIGH ovpn: ensure socket is owned by ovpn before deref sk_user_data
CVE-2026-80749 7.1 HIGH drm/connector/hdmi: Fix out of bounds memory read
CVE-2026-80741 7.1 HIGH drm/log: Fix out-of-bounds read on empty message length
CVE-2026-80729 mm/huge_memory: initialise workingset state before folio split
CVE-2026-80730 ring-buffer: Fix crash passing ERR_PTR to kthread_stop()

Showing top 20 of 32 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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