rtw88: fix memory overrun and memory leak during hw_scan

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Previously we allocated less memory than actual required, overwrite
to the buffer causes the mm module to complaint and raise access
violation faults. Along with potential memory leaks when returned
early. Fix these by passing the correct size and proper deinit flow.

Fixes: 10d162b2ed ("rtw88: 8822c: add ieee80211_ops::hw_scan")
Signed-off-by: Po-Hao Huang <phhuang@realtek.com>
Signed-off-by: Ping-Ke Shih <pkshih@realtek.com>
Signed-off-by: Kalle Valo <kvalo@kernel.org>
Link: https://lore.kernel.org/r/20220121070813.9656-4-pkshih@realtek.com

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Po-Hao Huang 2022-01-21 15:08:13 +08:00 • committed by Kalle Valo

parent c17f27167b

commit d95984b558

1 changed files with 24 additions and 10 deletions

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drivers/net/wireless/realtek/rtw88/fw.c

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