bpf: Reject sleepable kprobe_multi programs at attach time
CVE-2026-43010 is a medium severity vulnerability related to the Linux kernel's handling of BPF (Berkeley Packet Filter) programs, specifically rejecting sleepable kprobe_multi programs at attach time. The vulnerability affects Microsoft Azure Linux kernel version 3.0. It does not impact confidentiality or integrity but can cause availability issues. No known exploits are reported in the wild. No patch or remediation information is currently provided.
AI Analysis
Technical Summary
This vulnerability concerns the Linux kernel's BPF subsystem, where sleepable kprobe_multi programs are rejected at attach time. The issue affects Microsoft Azure Linux kernel version 3.0. The CVSS vector indicates local attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, no confidentiality or integrity impact, but high impact on availability. The vulnerability could lead to denial of service conditions. No vendor advisory or patch information is currently available.
Potential Impact
The vulnerability does not affect confidentiality or integrity but has a high impact on availability, potentially causing denial of service on affected systems. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is currently provided.
bpf: Reject sleepable kprobe_multi programs at attach time
Description
CVE-2026-43010 is a medium severity vulnerability related to the Linux kernel's handling of BPF (Berkeley Packet Filter) programs, specifically rejecting sleepable kprobe_multi programs at attach time. The vulnerability affects Microsoft Azure Linux kernel version 3.0. It does not impact confidentiality or integrity but can cause availability issues. No known exploits are reported in the wild. No patch or remediation information is currently provided.
CVSS v3.1
Score 5.5medium
Affected software
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability concerns the Linux kernel's BPF subsystem, where sleepable kprobe_multi programs are rejected at attach time. The issue affects Microsoft Azure Linux kernel version 3.0. The CVSS vector indicates local attack vector, low attack complexity, low privileges required, no user interaction, unchanged scope, no confidentiality or integrity impact, but high impact on availability. The vulnerability could lead to denial of service conditions. No vendor advisory or patch information is currently available.
Potential Impact
The vulnerability does not affect confidentiality or integrity but has a high impact on availability, potentially causing denial of service on affected systems. There are no known exploits in the wild at this time.
Mitigation Recommendations
Patch status is not yet confirmed — check the Microsoft Security Response Center advisory for current remediation guidance. No official fix or workaround information is currently provided.
Technical Details
- Gcve Source
- db.gcve.eu
- Csaf Category
- csaf_vex
- Csaf Version
- 2.0
- Publisher
- Microsoft Security Response Center
- Advisory Id
- msrc_CVE-2026-43010
- Cve Count
- 1
- Additional Cves
- []
- Cvss Version
- 3.1
Threat ID: 6a42ed9027e9c79719963d4c
Added to database: 06/29/2026, 22:11:28 UTC
Last enriched: 07/09/2026, 10:45:55 UTC
Last updated: 07/31/2026, 19:24:48 UTC
Views: 22
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