CVE-2026-97524

NVD: In the Linux kernel, the following vulnerability has been resolved: mptcp: avoid unneeded actions on subflow reset Once in a blue moon, the mptcp receive path can recursively call mptcp_data_ready() via state change under unlucky error conditions, and then... NVD: Break the recursion loop explicitly checking for the exceptional condition. NVD: Add a new flag instead of using an existing one like 'closing', to exit early in subflow_state_change(), and explicitly flush the RX queue at reset time.

Source-published summary

NVD: In the Linux kernel, the following vulnerability has been resolved: mptcp: avoid unneeded actions on subflow reset Once in a blue moon, the mptcp receive path can recursively call mptcp_data_ready() via state change under unlucky error conditions, and then... NVD: Break the recursion loop explicitly checking for the exceptional condition. NVD: Add a new flag instead of using an existing one like 'closing', to exit early in subflow_state_change(), and explicitly flush the RX queue at reset time.

Possible impact

This high severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for high severity review.

Affected context

vendor/product: Kernel; package/component: Kernel

Remediation / advisory

Remediation reference present; patch status requires confirmation in the linked advisory.

Why it matters

This high severity issue needs human triage to confirm exposure, affected versions, and vendor guidance for high severity review.; CVSS 7.5 (HIGH); EPSS percentile 47; not listed in KEV; Remediation reference present; patch status requires confirmation in the linked advisory; sources: NVD, OSV.

What to verify

Confirm affected product/version, vendor advisory, patch or mitigation, and exposure.

Exposure hint

exposure unknown

Impact tags

Urgency reasons

Source-derived note

Summary derived from NVD / OSV description; unsafe procedural detail is not shown.

Redaction metadata

source summary used

True

fallback summary used

False

unsafe procedural detail present

false

raw source displayed

false

public summary redacted

true

Remediation handoff

Public-safe static handoff for human/Codex remediation planning. Scan, patch, external execution, and auto remediation are disabled.

Safety note

This radar shows source-published defensive context only. Exploit procedures, exploit strings, scanner commands, and auto-remediation are not provided.

Official references

• https://nvd.nist.gov/vuln/detail/CVE-2026-97524
• https://osv.dev/vulnerability/CVE-2026-97524