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CVE-2026-80883— drm/tegra: gr2d/gr3d: Initialize address register map before HOST1X client is registered

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 6.6.145之前版本、6.12.97之前版本、6.18.40之前版本和7.1.5之前版本存在安全漏洞，该漏洞源于drm/tegra gr2d/gr3d驱动在注册HOST1X客户端前未初始化地址寄存器映射，可能导致用户空间在寄存器映射初始化前提交作业。

AI Predicted 5.5 Difficulty: Moderate EPSS 0.16% · P4

Possible ATT&CK Techniques 1 AI

T1505 · Server Software Component

Affected Version Matrix 12

VendorProduct Version RangeStatus
Linux Linux d43f81cbaf43531a977e8b4c4427f19acf8a5061< 6e22d5ad61cfa38aa53fab86a530113aff6a3619 affected
d43f81cbaf43531a977e8b4c4427f19acf8a5061< 5db37fd7710e74bc4df48bddab8f571d0bfc6769 affected
d43f81cbaf43531a977e8b4c4427f19acf8a5061< 40a2a91da02c434938f0ba53877984820800b5f0 affected
d43f81cbaf43531a977e8b4c4427f19acf8a5061< 3055292b8eed69553b389a609197a241df47e68e affected
d43f81cbaf43531a977e8b4c4427f19acf8a5061< c4ef5ba1131346159e31f4ef858525cf377380a6 affected
3.10 affected
< 3.10 unaffected
6.6.145≤ 6.6.* unaffected
… +4 more rows
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I. Basic Information for CVE-2026-80883

Vulnerability Information
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Vulnerability Title
drm/tegra: gr2d/gr3d: Initialize address register map before HOST1X client is registered
Source: CVE Program / CVE List V5
Vulnerability Description
In the Linux kernel, the following vulnerability has been resolved: drm/tegra: gr2d/gr3d: Initialize address register map before HOST1X client is registered The host1x_client_register() function is called just prior to register map initialization loop, making the device available to userspace. This may result in userspace attempting to submits a job before the register map is initialized. Address this by moving register initialization before host1x client registration.
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 6.6.145之前版本、6.12.97之前版本、6.18.40之前版本和7.1.5之前版本存在安全漏洞，该漏洞源于drm/tegra gr2d/gr3d驱动在注册HOST1X客户端前未初始化地址寄存器映射，可能导致用户空间在寄存器映射初始化前提交作业。
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 d43f81cbaf43531a977e8b4c4427f19acf8a5061 ~ 6e22d5ad61cfa38aa53fab86a530113aff6a3619 -
Linux Linux 3.10 -

II. Public POCs for CVE-2026-80883

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III. Intelligence Information for CVE-2026-80883

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Patches & Fixes for CVE-2026-80883 (5)

Same Patch Batch · Linux · 2026-09-04 · 156 CVEs total

CVE-2026-80864 RDMA/rxe: Fix responder UAF on IB_QP_MAX_DEST_RD_ATOMIC modify_qp
CVE-2026-80855 fuse: fix invalidate lock leak on open O_TRUNC DAX failure
CVE-2026-80856 fuse: fix invalidate lock leak on setattr writeback failure
CVE-2026-80857 fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free
CVE-2026-80858 fuse: publish io-uring queues with release semantics
CVE-2026-80859 fuse: fix missing barrier when checking io-uring readiness
CVE-2026-80860 fuse: fix race between interrupt and resend
CVE-2026-80861 usb: xhci: bail out of setup if the controller is inaccessible
CVE-2026-80862 nvme-tcp: fix usage of page_frag_cache
CVE-2026-80863 RDMA/rxe: Fix OOB in free_rd_atomic_resources()
CVE-2026-80869 ntfs: bound the attribute-list entry in ntfs_read_inode_mount()
CVE-2026-80873 KVM: arm64: nv: Write ESR_EL2 for injected nested SError exceptions
CVE-2026-80872 ALSA: hda/tas2781: Cancel async firmware request at unbind
CVE-2026-80871 crypto: xilinx-trng - Remove crypto_rng interface
CVE-2026-80870 drm/amdkfd: Validate CRIU-restored IDs before idr_alloc
CVE-2026-80867 alpha/PCI: Add security_locked_down() check to pci_mmap_resource()
CVE-2026-80865 bpf: Add missing access_ok call to copy_user_syms
CVE-2026-80866 tipc: avoid busy looping in tipc_exit_net()
CVE-2026-80854 usb: gadget: f_tcm: keep port count until LUN teardown completes
CVE-2026-80868 ntfs3: Allocate iomap inline_data using alloc_page

Showing top 20 of 156 CVEs. View all on vendor page &rarr; →

IV. Related Vulnerabilities

Same product: Linux
Same vendor: Linux

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