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.

https://git.kernel.org/stable/c/08424a0922fb9e32a19b09d852ee87fb6c497538

https://git.kernel.org/stable/c/508be7c001437bacad7b9a43f08a723887bcd1ea

https://git.kernel.org/stable/c/524b70441baba453b193c418e3142bd31059cc1f

https://git.kernel.org/stable/c/8e089e7b585d95122c8122d732d1d5ef8f879396

https://git.kernel.org/stable/c/bdb435ef9815b1ae28eefffa01c6959d0fcf1fa7

https://git.kernel.org/stable/c/fa9b9f02212574ee1867fbefb0a675362a71b31d