7.8

CVE-2026-46311: linux Race Condition

CVSS: 7.8v3.1HighModified
AliasesUBUNTU-CVE-2026-46311DEBIAN-CVE-2026-46311CGA-323g-23qc-hv5r
Published 08-06-2026Last modified 19-10-2026
Open JSON

Vulnerability summary

CVE-2026-46311 is a high (CVSS 7.8) Race Condition vulnerability in linux. EPSS estimates a 0.10% chance of exploitation in the next 30 days, higher than 0.5% of scored vulnerabilities.

Overall risk
31/100
0100
Medium · default modelHow is this calculated?
CVSS score
7.8/10
010
High · v3.1 (CVE.org)
EPSS score
0.10%
0%100%
Low · -0.02 pp in 30 days
KEVNot listedIn no KEV catalog
RansomwareNone recordedNo known use recorded
Public exploits0No public exploits recorded

Advisory lineage

Upstream 0 · Downstream 14 · Related 13
OPENSUSE-SU-2026:11014-1RHSA-2026:71602RHSA-2026:71700USN-8566-1USN-8568-1USN-8569-1

Timeline

  1. 08-06-2026
    PublishedVulnerability first disclosed.
  2. 19-10-2026
    Last modifiedVulnerability information updated.

Description

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)

CVSS metrics

6 scores · 5 sources · 2 versions

EPSS trend

Probability

0.10%

Chance of exploitation in the next 30 days

Percentile

1%

Versus all other CVEs

30-day change

-0.02 pp

From 0.11% on 20-09-2026

20-09-202620-10-2026
EPSS score
0.10%

Known exploited

Compare KEV catalogs

Not in any of the 3 tracked catalogs.

Public exploits

0 found

No public exploits indexed.

Weaknesses

CWE · root cause

Affected systems

Ubuntu118 products
  • linuxAll versions (No fix recorded) | < 7.0.0-28.28
  • linux-allwinner-5.19All versions (No fix recorded)
  • linux-awsAll versions (No fix recorded) | < 7.0.0-1009.9
  • linux-aws-5.0All versions (No fix recorded)
  • linux-aws-5.11All versions (No fix recorded)
Chainguard20 products
  • linux-aws-6.18All versions (No fix recorded)
  • linux-azure-6.18All versions (No fix recorded)
  • linux-desktop-6.18All versions (No fix recorded)
  • linux-desktop-6.18-bootcAll versions (No fix recorded)
  • linux-desktop-6.18-bootc-boot-installedAll versions (No fix recorded)
Linux2 products
  • linux≥ 5fb2f7fc21a3668e5794cc0d153641b9719713e1, < 2da62dbb4169e758c0b1a9378b39a373bf4fb111 | ≥ 5fb2f7fc21a3668e5794cc0d153641b9719713e1, < 336a9186f3a4b65bbd865d93936605ac8a1a3991 | ≥ 5fb2f7fc21a3668e5794cc0d153641b9719713e1, < 6da7b1242da4455b11c24ce667d1cab1a348c8ea | 6.16
  • linux_kernel≥ 6.16, < 7.0.9 | 7.1:rc1 | 7.1:rc2
Debian1 product
  • linux< 7.0.9-1

4 vendors · 141 products

References

21 links
Show all 21 references