diff options
| author | Phil Elwell <phil@raspberrypi.com> | 2022-01-18 15:45:14 +0000 |
|---|---|---|
| committer | Kalle Valo <kvalo@kernel.org> | 2022-01-28 16:06:04 +0200 |
| commit | 665408f4c3a5c83e712871daa062721624b2b79e (patch) | |
| tree | ab495bf6928178b2ba8b20c3adb44196620a394e /net/mac80211 | |
| parent | 7674b7b559b683478c3832527c59bceb169e701d (diff) | |
brcmfmac: firmware: Fix crash in brcm_alt_fw_path
The call to brcm_alt_fw_path in brcmf_fw_get_firmwares is not protected
by a check to the validity of the fwctx->req->board_type pointer. This
results in a crash in strlcat when, for example, the WLAN chip is found
in a USB dongle.
Prevent the crash by adding the necessary check.
See: https://github.com/raspberrypi/linux/issues/4833
Fixes: 5ff013914c62 ("brcmfmac: firmware: Allow per-board firmware binaries")
Signed-off-by: Phil Elwell <phil@raspberrypi.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220118154514.3245524-1-phil@raspberrypi.com
Diffstat (limited to 'net/mac80211')
0 files changed, 0 insertions, 0 deletions