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CVE-2025-37990 – “Broadcom brcm80211 WiFi Linux Kernel Uninitialized Variable Use”

The following table lists the changes that have been made to the
CVE-2025-37990 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

    May. 20, 2025

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

    wifi: brcm80211: fmac: Add error handling for brcmf_usb_dl_writeimage()

    The function brcmf_usb_dl_writeimage() calls the function
    brcmf_usb_dl_cmd() but dose not check its return value. The
    ‘state.state’ and the ‘state.bytes’ are uninitialized if the
    function brcmf_usb_dl_cmd() fails. It is dangerous to use
    uninitialized variables in the conditions.

    Add error handling for brcmf_usb_dl_cmd() to jump to error
    handling path if the brcmf_usb_dl_cmd() fails and the
    ‘state.state’ and the ‘state.bytes’ are uninitialized.

    Improve the error message to report more detailed error
    information.
    Added Reference https://git.kernel.org/stable/c/08424a0922fb9e32a19b09d852ee87fb6c497538
    Added Reference https://git.kernel.org/stable/c/508be7c001437bacad7b9a43f08a723887bcd1ea
    Added Reference https://git.kernel.org/stable/c/524b70441baba453b193c418e3142bd31059cc1f
    Added Reference https://git.kernel.org/stable/c/8e089e7b585d95122c8122d732d1d5ef8f879396
    Added Reference https://git.kernel.org/stable/c/bdb435ef9815b1ae28eefffa01c6959d0fcf1fa7
    Added Reference https://git.kernel.org/stable/c/fa9b9f02212574ee1867fbefb0a675362a71b31d
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