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CVE-2026-90300VulnerabilityPublished Updated

__bpf_get_task_stack · bpf: Clear buf on error

Affects MicrosoftSource GCVE Database

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Authoritative record:CVE-2026-90300· Low

Not known to be exploited · fixed in f523359c4789bb0396d2d642464a6e2fd4f2299d : update Microsoft when convenient.

Data as of 7 Nov 2026, 12:18 UTC

Severity
Low

Rated by Threat Radar · CVSS not yet scored by NVD

Thin evidence

One scorer or none
Patch
Available – fixed in f523359c4789bb0396d2d642464a6e2fd4f2299d, f5d242825ca417bb6afe35fde6e8880f97ca43fb, 6f5a7bcc049709af12e403111d5e73e80910dafc +5

Exploitation evidence

  1. Disclosed: evidence found.

    CVE published 17 Sep 2026

  2. Detectable: no evidence on record.

    No public nuclei template indexed

  3. Weaponized: no evidence on record.

    No public exploit code indexed in Metasploit or Exploit-DB

  4. Exploited in the wild: no evidence on record.

    Not in CISA KEV and no source reports exploitation

  5. Observed by OffSeq Mirage: no evidence on record.

    No attack traffic recorded by OffSeq Mirage sensors

A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 7 Nov 2026.

What to do

Upgrade to a fixed release listed under Affected software.

Affected software

ProductAffectedFixed in
LinuxLinuxAffected
  • >=5.10.30 <5.11
  • >=5.11.14 <5.12
  • >=5.10.96 <5.11
Fixed in
  • f523359c4789bb0396d2d642464a6e2fd4f2299d
  • f5d242825ca417bb6afe35fde6e8880f97ca43fb
  • 6f5a7bcc049709af12e403111d5e73e80910dafc
  • 5c4c57a277a87ed235183d03b671d346f5101f62
  • 5.12
  • 5.11
  • 4acc761b4e3feca1eb648d21fc4d665b23c5372d
  • 1f0f61573ba4cb899105b5cef65be3ca02205f93
LinuxLinuxAffected
  • =5.12
Fixed in–

Description

To determine the support lifecycle for your software, see the Microsoft Support Lifecycle: https://support.microsoft.com/lifecycle

References

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