CVE-2024-26708

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    CVE-2024-26708

    Published: 3 Apr 2024Last Modified: 12 Aug 2026

    Summary: mptcp: really cope with fastopen race

    Details: In the Linux kernel, the following vulnerability has been resolved: mptcp: really cope with fastopen race Fastopen and PM-trigger subflow shutdown can race, as reported by syzkaller. In my first attempt to close such race, I missed the fact that the subflow status can change again before the subflow_state_change callback is invoked. Address the issue additionally copying with all the states directly reachable from TCP_FIN_WAIT1.

    References: https://git.kernel.org/stable/c/337cebbd850f94147cee05252778f8f78b8c337f, https://git.kernel.org/stable/c/4bfe217e075d04e63c092df9d40c608e598c2ef2, https://git.kernel.org/stable/c/e158fb9679d15a2317ec13b4f6301bd26265df2f, https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/26xxx/CVE-2024-26708.json, https://nvd.nist.gov/vuln/detail/CVE-2024-26708, https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

    Affected packages

    Package

    Name:

    Purl:

    Affected ranges

    Type: GIT

    Events:

    Introduced- 1e777f39b4d75e599a3aac8e0f67d739474f198c
    Fixed -4bfe217e075d04e63c092df9d40c608e598c2ef2

    Affected versions

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High
    CVE-2024-26708 | CVE-DB