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    CVE-2016-9793

    The sock_setsockopt function in net/core/sock.c in the Linux kernel before 4.8.14 mishandles negative values of sk_sndbuf and sk_rcvbuf, which allows local users to cause a denial of service (memory corruption and system crash) or possibly have unspecified other impact by leveraging the CAP_NET_ADMIN capability for a crafted setsockopt system call with the (1) SO_SNDBUFFORCE or (2) SO_RCVBUFFORCE option.

    Published:Dec 2, 2016
    Last Modified:Apr 12, 2025
    EPS:Dec 28, 2016
    EPSS Score:0.0218
    CVSS Score:7.8

    Affected Products

    Vendor
    Linux
    Product
    Linux Kernel
    Vendor
    Redhat
    Product
    Enterprise Linux
    Vendor
    Redhat
    Product
    Enterprise Mrg
    Vendor
    Redhat
    Product
    Rhel Extras Rt

    Exploits

    https://www.exploit-db.com/exploits/41995https://github.com/WhatsWrongAndWhy/CVE-2016-9793

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    CVE-2026-80920 — In the Linux kernel, the following vulnerability has been resolved: io_uring: defer eventfd signaling when qu…
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    References

    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290
    http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14
    http://www.openwall.com/lists/oss-security/2016/12/03/1
    http://www.securityfocus.com/bid/94655
    http://www.securitytracker.com/id/1037968
    https://access.redhat.com/errata/RHSA-2017:0931
    https://access.redhat.com/errata/RHSA-2017:0932
    https://access.redhat.com/errata/RHSA-2017:0933
    https://bugzilla.redhat.com/show_bug.cgi?id=1402013
    https://github.com/torvalds/linux/commit/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290
    https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793
    https://source.android.com/security/bulletin/2017-03-01.html
    http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=b98b0bc8c431e3ceb4b26b0dfc8db509518fb290
    http://www.kernel.org/pub/linux/kernel/v4.x/ChangeLog-4.8.14
    http://www.openwall.com/lists/oss-security/2016/12/03/1
    http://www.securityfocus.com/bid/94655
    http://www.securitytracker.com/id/1037968
    https://access.redhat.com/errata/RHSA-2017:0931
    https://access.redhat.com/errata/RHSA-2017:0932
    https://access.redhat.com/errata/RHSA-2017:0933
    https://bugzilla.redhat.com/show_bug.cgi?id=1402013
    https://github.com/torvalds/linux/commit/b98b0bc8c431e3ceb4b26b0dfc8db509518fb290
    https://github.com/xairy/kernel-exploits/tree/master/CVE-2016-9793
    https://source.android.com/security/bulletin/2017-03-01.html

    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