Linux Kernel up to 6.18.21/6.19.11 pxp_start denial of service

CVSS Meta Temp Score
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CTI Interest Score
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5.5$0-$5k0.00

Summaryinfo

A vulnerability labeled as critical has been found in Linux Kernel up to 6.18.21/6.19.11. Affected by this issue is the function pxp_start. The manipulation results in denial of service. This vulnerability is identified as CVE-2026-31784. There is not any exploit available. The affected component should be upgraded.

Detailsinfo

A vulnerability was found in Linux Kernel up to 6.18.21/6.19.11. It has been classified as critical. Affected is the function pxp_start. The manipulation with an unknown input leads to a denial of service vulnerability. CWE is classifying the issue as CWE-404. The product does not release or incorrectly releases a resource before it is made available for re-use. This is going to have an impact on availability. CVE summarizes:

In the Linux kernel, the following vulnerability has been resolved: drm/xe/pxp: Clear restart flag in pxp_start after jumping back If we don't clear the flag we'll keep jumping back at the beginning of the function once we reach the end. (cherry picked from commit 0850ec7bb2459602351639dccf7a68a03c9d1ee0)

The advisory is shared for download at git.kernel.org. This vulnerability is traded as CVE-2026-31784 since 03/09/2026. There are known technical details, but no exploit is available.

Upgrading to version 6.18.22 or 6.19.12 eliminates this vulnerability. Applying the patch 9e962e68a9d26135af67c423767c0983d9ad94c3/400ee45f80480c05c3fa673967f25faab8323753/76903b2057c8677c2c006e87fede15f496555dc0 is able to eliminate this problem. The bugfix is ready for download at git.kernel.org. The best possible mitigation is suggested to be upgrading to the latest version.

Once again VulDB remains the best source for vulnerability data.

Productinfo

Type

Vendor

Name

Version

License

Website

CPE 2.3info

CPE 2.2info

CVSSv4info

VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv3info

VulDB Meta Base Score: 5.7
VulDB Meta Temp Score: 5.5

VulDB Base Score: 5.7
VulDB Temp Score: 5.5
VulDB Vector: 🔒
VulDB Reliability: 🔍

CVSSv2info

AVACAuCIA
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VectorComplexityAuthenticationConfidentialityIntegrityAvailability
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VulDB Base Score: 🔒
VulDB Temp Score: 🔒
VulDB Reliability: 🔍

Exploitinginfo

Class: Denial of service
CWE: CWE-404
CAPEC: 🔒
ATT&CK: 🔒

Physical: No
Local: No
Remote: Partially

Availability: 🔒
Status: Not defined

EPSS Score: 🔒
EPSS Percentile: 🔒

Price Prediction: 🔍
Current Price Estimation: 🔒

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Threat Intelligenceinfo

Interest: 🔍
Active Actors: 🔍
Active APT Groups: 🔍

Countermeasuresinfo

Recommended: Upgrade
Status: 🔍

0-Day Time: 🔒

Upgrade: Kernel 6.18.22/6.19.12
Patch: 9e962e68a9d26135af67c423767c0983d9ad94c3/400ee45f80480c05c3fa673967f25faab8323753/76903b2057c8677c2c006e87fede15f496555dc0

Timelineinfo

03/09/2026 CVE reserved
05/01/2026 +52 days Advisory disclosed
05/01/2026 +0 days VulDB entry created
05/01/2026 +0 days VulDB entry last update

Sourcesinfo

Vendor: kernel.org

Advisory: git.kernel.org
Status: Confirmed

CVE: CVE-2026-31784 (🔒)
GCVE (CVE): GCVE-0-2026-31784
GCVE (VulDB): GCVE-100-360636

Entryinfo

Created: 05/01/2026 17:40
Changes: 05/01/2026 17:40 (58)
Complete: 🔍
Cache ID: 216::103

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