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.
| Software | From | Fixed in |
|---|---|---|
| linux / linux_kernel | 3.4 | 5.4.294 |
| linux / linux_kernel | 5.5 | 5.10.238 |
| linux / linux_kernel | 5.11 | 5.15.182 |
| linux / linux_kernel | 5.16 | 6.1.138 |
| linux / linux_kernel | 6.2 | 6.6.90 |
| linux / linux_kernel | 6.7 | 6.12.28 |
| linux / linux_kernel | 6.13 | 6.14.6 |
| linux / linux_kernel | 6.15-rc1 | 6.15-rc1.x |
| linux / linux_kernel | 6.15-rc2 | 6.15-rc2.x |
| linux / linux_kernel | 6.15-rc3 | 6.15-rc3.x |
| linux / linux_kernel | 6.15-rc4 | 6.15-rc4.x |
| debian / debian_linux | 11.0 | 11.0.x |