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CVE-2024-57890 – Linux Kernel RDMA/uverbs Integer Overflow Vulnerability

The following table lists the changes that have been made to the
CVE-2024-57890 vulnerability over time.

Vulnerability history details can be useful for understanding the evolution
of a vulnerability, and for identifying the most recent changes that may
impact the vulnerability’s severity, exploitability, or other characteristics.

  • New CVE Received
    by 416baaa9-dc9f-4396-8d5f-8c081fb06d67

    Jan. 15, 2025

    Action Type Old Value New Value
    Added Description In the Linux kernel, the following vulnerability has been resolved:

    RDMA/uverbs: Prevent integer overflow issue

    In the expression “cmd.wqe_size * cmd.wr_count”, both variables are u32
    values that come from the user so the multiplication can lead to integer
    wrapping. Then we pass the result to uverbs_request_next_ptr() which also
    could potentially wrap. The “cmd.sge_count * sizeof(struct ib_uverbs_sge)”
    multiplication can also overflow on 32bit systems although it’s fine on
    64bit systems.

    This patch does two things. First, I’ve re-arranged the condition in
    uverbs_request_next_ptr() so that the use controlled variable “len” is on
    one side of the comparison by itself without any math. Then I’ve modified
    all the callers to use size_mul() for the multiplications.
    Added Reference https://git.kernel.org/stable/c/346db03e9926ab7117ed9bf19665699c037c773c
    Added Reference https://git.kernel.org/stable/c/42a6eb4ed7a9a41ba0b83eb0c7e0225b5fca5608
    Added Reference https://git.kernel.org/stable/c/b3ef4ae713360501182695dd47d6b4f6e1a43eb8
    Added Reference https://git.kernel.org/stable/c/b92667f755749cf10d9ef1088865c555ae83ffb7
    Added Reference https://git.kernel.org/stable/c/c2f961c46ea0e5274c5c320d007c2dd949cf627a
    Added Reference https://git.kernel.org/stable/c/c57721b24bd897338a81a0ca5fff41600f0f1ad1
    Added Reference https://git.kernel.org/stable/c/d0257e089d1bbd35c69b6c97ff73e3690ab149a9
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