Messages in this thread | | | Subject | Re: [PATCH v4] wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function | From | Kalle Valo <> | Date | Tue, 17 Jan 2023 11:52:46 +0000 (UTC) |
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Fedor Pchelkin <pchelkin@ispras.ru> wrote:
> It is stated that ath9k_htc_rx_msg() either frees the provided skb or > passes its management to another callback function. However, the skb is > not freed in case there is no another callback function, and Syzkaller was > able to cause a memory leak. Also minor comment fix. > > Found by Linux Verification Center (linuxtesting.org) with Syzkaller. > > Fixes: fb9987d0f748 ("ath9k_htc: Support for AR9271 chipset.") > Reported-by: syzbot+e008dccab31bd3647609@syzkaller.appspotmail.com > Reported-by: syzbot+6692c72009680f7c4eb2@syzkaller.appspotmail.com > Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru> > Signed-off-by: Alexey Khoroshilov <khoroshilov@ispras.ru> > Acked-by: Toke Høiland-Jørgensen <toke@toke.dk> > Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Patch applied to ath-next branch of ath.git, thanks.
9b25e3985477 wifi: ath9k: htc_hst: free skb in ath9k_htc_rx_msg() if there is no callback function
-- https://patchwork.kernel.org/project/linux-wireless/patch/20230104123546.51427-1-pchelkin@ispras.ru/
https://wireless.wiki.kernel.org/en/developers/documentation/submittingpatches
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