Read the docs
TI-2026-34032 Aliases CVE-2026-46311GHSA-9995-3vvw-2xwp

drm/amdgpu/userq: fix access to stale wptr mapping

Priority LOW 35CWE-362Published · Updated

Key facts

Attack vector
Local
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
—
Confidentiality · integrity · availability
High · High · High
Fix status
Partial Red Hat: 10 fixed, 4 without a fix

Attack profile from CVSS 3.1 · CNA. Fix status from CNA and Red Hat.

Summary

In the Linux kernel, the following vulnerability has been resolved: drm/amdgpu/userq: fix access to stale wptr mapping Use drm_exec to take both locks i.e vm root bo and wptr_obj bo to access the mapping data properly. This fixes the security issue of unmap the wptr_obj while a queue creation is in progress and passing other bo at same address. (cherry picked from commit 1fc6c8ab45dbee096469c08c13f6099d57a52d6c)

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00095 0th percentileScored 2026-11-07
Fix Partial Linux (Linux): 6.18.57, 7.0.9, 7.1Red Hat: 2 advisoriesRed Hat: 10 fixed, 4 without a fix

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
LinuxLinux6.16 and later6.18.57, 7.0.9, 7.1Patch availableCNA
  • Linux VendorLinux Affected 6.16 and later Fixed in 6.18.57, 7.0.9, 7.1 Patch available CNA

CPE configurations NVD · 3

CPEVersionsRoleVendor
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*6.16 to before 7.0.9VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:*7.1 rc1VulnerableLinux
cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:*7.1 rc2VulnerableLinux
  • cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:* Versions 6.16 to before 7.0.9 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc1:*:*:*:*:*:* Versions 7.1 rc1 Vulnerable ·Linux
  • cpe:2.3:o:linux:linux_kernel:7.1:rc2:*:*:*:*:*:* Versions 7.1 rc2 Vulnerable ·Linux

Remediation

  • Fix · CNA Linux (Linux) Fixed in 6.18.57, 7.0.9, 7.1

Red Hat 2 advisories

  • RHSA-2026:71700 Released 2026-09-25 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 9) kernel-64k-debug-devel-5.14.0-687.52.1.el9_8, kernel-64k-debug-devel-matched-5.14.0-687.52.1.el9_8, kernel-64k-devel-5.14.0-687.52.1.el9_8 +12
    • Red Hat Enterprise Linux BaseOS (v. 9) kernel-5.14.0-687.52.1.el9_8, kernel-64k-5.14.0-687.52.1.el9_8, kernel-64k-core-5.14.0-687.52.1.el9_8 +28
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 9) kernel-tools-libs-devel-5.14.0-687.52.1.el9_8, libperf-5.14.0-687.52.1.el9_8
    • Red Hat Enterprise Linux Real Time (v. 9) kernel-rt-5.14.0-687.52.1.el9_8, kernel-rt-64k-5.14.0-687.52.1.el9_8, kernel-rt-64k-core-5.14.0-687.52.1.el9_8 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 9) kernel-rt-5.14.0-687.52.1.el9_8, kernel-rt-core-5.14.0-687.52.1.el9_8, kernel-rt-debug-5.14.0-687.52.1.el9_8 +9
  • RHSA-2026:71602 Released 2026-09-24 · Red Hat rating Important
    kernel security, bug fix, and enhancement update
    • Red Hat Enterprise Linux AppStream (v. 10) kernel-64k-debug-devel-6.12.0-211.60.1.el10_2, kernel-64k-debug-devel-matched-6.12.0-211.60.1.el10_2, kernel-64k-devel-6.12.0-211.60.1.el10_2 +12
    • Red Hat Enterprise Linux BaseOS (v. 10) kernel-6.12.0-211.60.1.el10_2, kernel-64k-6.12.0-211.60.1.el10_2, kernel-64k-core-6.12.0-211.60.1.el10_2 +29
    • Red Hat Enterprise Linux CodeReady Linux Builder (v. 10) kernel-tools-libs-devel-6.12.0-211.60.1.el10_2, libperf-6.12.0-211.60.1.el10_2
    • Red Hat Enterprise Linux Real Time (v. 10) kernel-rt-6.12.0-211.60.1.el10_2, kernel-rt-64k-6.12.0-211.60.1.el10_2, kernel-rt-64k-core-6.12.0-211.60.1.el10_2 +21
    • Red Hat Enterprise Linux Real Time for NFV (v. 10) kernel-rt-6.12.0-211.60.1.el10_2, kernel-rt-core-6.12.0-211.60.1.el10_2, kernel-rt-debug-6.12.0-211.60.1.el10_2 +9

Vendor assessments

Red Hat

Red Hat rating: Moderate. Red Hat's page for this CVE →

ProductStatusPlan or fix
Red Hat Enterprise Linux 6AffectedNo fix planned: Out of support scope
Red Hat Enterprise Linux 7AffectedNo fix yet
Red Hat Enterprise Linux 8AffectedNo fix yet
Red Hat Enterprise Linux 9AffectedNo fix yet
Red Hat Enterprise Linux AppStream (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux AppStream (v. 9)Fixed RHSA-2026:71700
Red Hat Enterprise Linux BaseOS (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux BaseOS (v. 9)Fixed RHSA-2026:71700
Red Hat Enterprise Linux CodeReady Linux Builder (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux CodeReady Linux Builder (v. 9)Fixed RHSA-2026:71700
Red Hat Enterprise Linux Real Time (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux Real Time (v. 9)Fixed RHSA-2026:71700
Red Hat Enterprise Linux Real Time for NFV (v. 10)Fixed RHSA-2026:71602
Red Hat Enterprise Linux Real Time for NFV (v. 9)Fixed RHSA-2026:71700

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-46311
  2. 2026-10-03 Alias added: GHSA-9995-3vvw-2xwp
  3. 2026-10-16 Fix available: Linux/Linux@2da62dbb4169e758c0b1a9378b39a373bf4fb111, Linux/[email protected] · CNA
  4. 2026-10-16 1 new reference · CNA
  5. 2026-10-16 CISA SSVC decision points changed
  6. 2026-10-19 Weakness changed · CISA ADP

References

Patch 2

Other 1

  • TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
  • TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
  • TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
  • TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
  • TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
  • TI-2021-05514 Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACE KEVCVSS 3.1HIGH 8.3
See all 15278 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences