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    CVE-2021-47311

    In the Linux kernel, the following vulnerability has been resolved: net: qcom/emac: fix UAF in emac_remove adpt is netdev private data and it cannot be used after free_netdev() call. Using adpt after free_netdev() can cause UAF bug. Fix it by moving free_netdev() at the end of the function.

    Published:May 21, 2024
    Last Modified:May 4, 2025
    EPS:May 21, 2024
    EPSS Score:0.00012
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Rhel Aus
    Vendor
    Redhat
    Product
    Rhel E4s
    Vendor
    Redhat
    Product
    Rhel Eus
    Vendor
    Redhat
    Product
    Rhel Tus

    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/11e9d163d631198bb3eb41a677a61b499516c0f7
    https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048c
    https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81
    https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839
    https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4
    https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2d
    https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833
    https://git.kernel.org/stable/c/11e9d163d631198bb3eb41a677a61b499516c0f7
    https://git.kernel.org/stable/c/2b70ca92847c619d6264c7372ef74fcbfd1e048c
    https://git.kernel.org/stable/c/4d04a42b926e682140776e54188f4a44f1f01a81
    https://git.kernel.org/stable/c/8a225a6e07a57a1538d53637cb3d82bd3e477839
    https://git.kernel.org/stable/c/ad297cd2db8953e2202970e9504cab247b6c7cb4
    https://git.kernel.org/stable/c/b1e091331920f8fbfc747dcbd16263fcd71abb2d
    https://git.kernel.org/stable/c/b560521eca03d0a2db6093a5a632cbdd0a0cf833

    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