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Noroxi
NVD / CVE Program· CNA Linux

CVE-2026-46311: drm/amdgpu/userq: fix access to stale wptr mapping

HighCVSS 7.8 · v3.1—No exploit Fix available

Noroxi assessment

Priority: Monitor (action score 31/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.09% (FIRST EPSS).
  • Someone with local access to the system can trigger it. A low-privileged account is enough. No user action is required. No special conditions are required; it is repeatable.
  • Fixed version: Linux Linux 2da62dbb4169e758c0b1a9378b39a373bf4fb111, 336a9186f3a4b65bbd865d93936605ac8a1a3991, 6da7b1242da4455b11c24ce667d1cab1a348c8ea.

Low priority for now. Upgrade to Linux Linux 2da62dbb4169e758c0b1a9378b39a373bf4fb111, 336a9186f3a4b65bbd865d93936605ac8a1a3991, 6da7b1242da4455b11c24ce667d1cab1a348c8ea or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

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)

Published
Jun 8, 2026
Updated
Oct 19, 2026
EPSS
0.0% · 0th percentile

Report tools

JSON

Action score

31

Monitor

Low priority for now.

CVSS
31 / 40 · 7.8 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.0%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

CNA vs NVD score

NVD
—
CNA · Linux
7.8
NVD has not scored this yet; the score shown is the CNA’s.

The score given by the assigning authority versus NVD’s independent score. A gap means the severity is contested.

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  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

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  • when exploit code appears or is weaponized
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  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
linuxlinux kernel

Versions reported by the vendor

Affected version ranges reported by the assigning authority (Linux). Independent of NVD's CPE analysis and usually ahead of it.

  • Linux Linux

    • 6.16affected
    • 5fb2f7fc21a3668e5794cc0d153641b9719713e1 and later · before 2da62dbb4169e758c0b1a9378b39a373bf4fb111affected · git
    • 5fb2f7fc21a3668e5794cc0d153641b9719713e1 and later · before 336a9186f3a4b65bbd865d93936605ac8a1a3991affected · git
    • 5fb2f7fc21a3668e5794cc0d153641b9719713e1 and later · before 6da7b1242da4455b11c24ce667d1cab1a348c8eaaffected · git
    • before 6.16not affected · semver
    • 6.18.57 and later · up to and including 6.18.*not affected · semver
    • 7.0.9 and later · up to and including 7.0.*not affected · semver
    • 7.1 and laternot affected · original_commit_for_fix

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • linux linux kernel6.16 and later · before 7.0.9
  • linux linux kernel7.1

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:10kernelbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64kbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-corebefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-debugbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-debug-corebefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-debug-develbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-debug-devel-matchedbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-debug-modulesbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-corebefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-debug-modules-extrabefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-develbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-devel-matchedbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-modulesbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-modules-corebefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-64k-modules-extrabefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-abi-stablelistsbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-corebefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-cross-headersbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-debugbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-debug-corebefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-debug-develbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-debug-devel-matchedbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-debug-modulesbefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2
AlmaLinux:10kernel-debug-modules-corebefore 6.12.0-211.60.1.el10_26.12.0-211.60.1.el10_2

+96

Same product

linux: all records

Other highest-scoring records for the same primary product.

  • CVE-2026-31431crypto: algif_aead - Revert to operating out-of-placeKEV
    90Now
  • CVE-2022-0847A flaw was found in the way the "flags" member of the new pipe buffer structure was lacking proper initialization in copy_page_to_iter_pipe…KEV
    89Now
  • CVE-2021-22555Heap Out-Of-Bounds Write in Netfilter IP6T_SO_SET_REPLACEKEV
    85Now

Published before and after this one in the same product

  • ← EarlierCVE-2026-46307Jun 8, 2026 · wifi: ath5k: do not access array OOB
    33Monitor
  • ← EarlierCVE-2026-46309Jun 8, 2026 · drm/xe/uapi: Reject coh_none PAT index for CPU cached memory in madvise
    28Monitor
  • Later →CVE-2026-46312Jun 8, 2026 · media: videobuf2: Set vma_flags in vb2_dma_sg_mmap
    22Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
Linux Linux2da62dbb4169e758c0b1a9378b39a373bf4fb111Vendor (CNA)
Linux Linux336a9186f3a4b65bbd865d93936605ac8a1a3991Vendor (CNA)
Linux Linux6da7b1242da4455b11c24ce667d1cab1a348c8eaVendor (CNA)
almalinux:kernel5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-core5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-core6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-core5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-core6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-devel5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-devel-matched6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules-core5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-core6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-debug-modules-extra6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-devel5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
almalinux:kernel-64k-devel-matched5.14.0-687.52.1.el9_8 · AlmaLinux:9Package registry (OSV)
almalinux:kernel-64k-devel-matched6.12.0-211.60.1.el10_2 · AlmaLinux:10Package registry (OSV)
debian:linux7.0.9-1 · Debian:14Package registry (OSV)
red hat:kernel-64k-debug-debuginfo0:6.12.0-211.60.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)
red hat:kernel-64k-debug-devel0:6.12.0-211.60.1.el10_2 · Red Hat:enterprise_linux:10.2Package registry (OSV)

+11

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

Not on record for this CVE: EPSS history · patch commit or PR link · researcher credit · variant or chain candidate · public bounty program.

Technical details

Attack conditions

  • Someone with local access to the system can trigger it.
  • A low-privileged account is enough.
  • No user action is required.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
high · the service can be disrupted
Attack vector
Local
Attack complexity
Low
Privileges required
Low
User interaction
None
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
High

Weakness class (CWE)

CWE-362 · Concurrent Execution using Shared Resource with Improper Synchronization ('Race Condition')

CVSS vector

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

ATT&CK techniques

—

References

Show all references (2 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records