Is there a patch available for EUVD-2026-81893?

Yes, a patch is available for EUVD-2026-81893. Update the affected software to the latest version immediately.

Linux EUVD-2026-81893

| CVE-2026-90300

2026-09-17 Linux

GHSA-ghq7-v2f8-82jr

Information Disclosure Linux

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Monitor Track and reassess. Why: No CVSS yet + weak signal (CWE or non-zero EPSS).

Patch available 0.2% exploitation probability (EPSS)

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AnalysisCVE.org

In the Linux kernel, the following vulnerability has been resolved:

bpf: Clear buf on error in __bpf_get_task_stack

Both bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that use __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM argument and we should initialize the buf on every return path.

Adding missing buf memset for __bpf_get_task_stack fail paths. This provides deterministic buffer contents, which is useful when the buffer is used directly as a map key.

Affected VersionsENISA

Linux 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df <f523359c4789bb0396d2d642464a6e2fd4f2299d

Linux patch: 7.2.6

Linux 5.10.96 <5.11

Linux 5.12

Linux d921baabd96445ef9c9c9410ca06164359c8a1a5

Linux 9c020a533eaae1c2d41a7e3835c4c818a9b4b656

Linux patch: 0

Linux 5.10.30 <5.11

Linux ff6bdc205fd0a83bd365405d4e31fb5905826996

Linux patch: 7.3-rc1

Linux 5.11.14 <5.12

Linux 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df <f5d242825ca417bb6afe35fde6e8880f97ca43fb

Affected Packages

euvd linux fix: 5.11, 5.12

Source: OSV (Open Source Vulnerabilities)

Affects your stack

Affects 1 package in euvd

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Exploit and PoC references, threat intelligence from 22 sources

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Lifecycle Timeline

Patch available

Sep 17, 2026 - 17:19 EUVD

CVE Published

Sep 17, 2026 - 16:08 cve.org

UNKNOWN (no severity yet)

Threat Intelligence Overview

EPSS Score

0.2%

Top 91% exploitable

Data Quality

3 sources

Confidence: Low

EUVD

CVE.org

EPSS MSRC

How this decision was reached

The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.

SignalValue

Severity Not scored yet

CISA KEV No

Public POC No

EPSS 0.2%

Patch available Yes

Active threat No

Deciding rule

No CVSS yet + weak signal (CWE or non-zero EPSS)

What every action level means

Emergency Immediate action required. Criteria: CRITICAL + in CISA KEV (actively exploited) without patch, OR CRITICAL + EPSS > 30% without patch, OR CRITICAL + active threat signals without patch.

Act Now Prioritize within 24-48h. Criteria: in KEV with patch available, OR CRITICAL + public POC, OR HIGH + EPSS > 10%, OR CRITICAL + active threat, OR any CRITICAL severity.

This Week Schedule remediation this week. Criteria: HIGH severity (CVSS 7.0-8.9). Patch within normal change window.

This Month Plan within 30 days. Criteria: MEDIUM severity (CVSS 4.0-6.9), lower exploitation probability. Include in regular patch cycle.

Monitor Track and reassess. Criteria: LOW severity (CVSS 0.1-3.9), minimal exploitation risk. No immediate action needed.

Attack Technique

Information Disclosure MEDIUM

Information disclosure occurs when an application unintentionally exposes sensitive data that aids attackers in reconnaissance or directly compromises security.