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.
Affected products
linux: linux kernel; debian: debian linux
References10
- git.kernel.org/stable/c/08424a0922fb9e32a19b09d852ee87fb6c497538 Patch
- git.kernel.org/stable/c/508be7c001437bacad7b9a43f08a723887bcd1ea Patch
- git.kernel.org/stable/c/524b70441baba453b193c418e3142bd31059cc1f Patch
- git.kernel.org/stable/c/62a4f2955d9a1745bdb410bf83fb16666d8865d6 Patch
- git.kernel.org/stable/c/8e089e7b585d95122c8122d732d1d5ef8f879396 Patch
- git.kernel.org/stable/c/972bf75e53f778c78039c5d139dd47443a6d66a1 Patch
- git.kernel.org/stable/c/bdb435ef9815b1ae28eefffa01c6959d0fcf1fa7 Patch
- git.kernel.org/stable/c/fa9b9f02212574ee1867fbefb0a675362a71b31d Patch
- lists.debian.org/debian-lts-announce/2025/08/msg00010.html Third Party Advisory
- lists.debian.org/debian-lts-announce/2025/10/msg00007.html Third Party Advisory
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 15 · as of 7 November 2026
- CWE
- CWE-908
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