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    CVE-2022-48742

    In the Linux kernel, the following vulnerability has been resolved: rtnetlink: make sure to refresh master_dev/m_ops in __rtnl_newlink() While looking at one unrelated syzbot bug, I found the replay logic in __rtnl_newlink() to potentially trigger use-after-free. It is better to clear master_dev and m_ops inside the loop, in case we have to replay it.

    Published:Jun 20, 2024
    Last Modified:May 4, 2025
    EPS:Jun 20, 2024
    EPSS Score:0.00013
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel

    Exploits

    No exploit reference

    Common Weakness Enumeration

    CWE-416 Use After Free

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

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    References

    https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303
    https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210
    https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39
    https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8
    https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93
    https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5
    https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963
    https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34a
    https://git.kernel.org/stable/c/2cf180360d66bd657e606c1217e0e668e6faa303
    https://git.kernel.org/stable/c/36a9a0aee881940476b254e0352581401b23f210
    https://git.kernel.org/stable/c/3bbe2019dd12b8d13671ee6cda055d49637b4c39
    https://git.kernel.org/stable/c/7d9211678c0f0624f74cdff36117ab8316697bb8
    https://git.kernel.org/stable/c/a01e60a1ec6bef9be471fb7182a33c6d6f124e93
    https://git.kernel.org/stable/c/bd43771ee9759dd9dfae946bff190e2c5a120de5
    https://git.kernel.org/stable/c/c6f6f2444bdbe0079e41914a35081530d0409963
    https://git.kernel.org/stable/c/def5e7070079b2a214b3b1a2fbec623e6fbfe34a

    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