Am Donnerstag, den 07.11.2019, 07:34 -0800 schrieb syzbot: > Hello, > > syzbot found the following crash on: > > HEAD commit: d60bbfea usb: raw: add raw-gadget interface > git tree: https://github.com/google/kasan.git usb-fuzzer > console output: https://syzkaller.appspot.com/x/log.txt?x=1029829ae00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=79de80330003b5f7 > dashboard link: https://syzkaller.appspot.com/bug?extid=555908813b2ea35dae9a > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1388a2aae00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13aa35dce00000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+555908813b2ea35dae9a@xxxxxxxxxxxxxxxxxxxxxxxxx #syz test: https://github.com/google/kasan.git d60bbfea >From d289a4973b869117a5a7f70297b0cecffceb8289 Mon Sep 17 00:00:00 2001 From: Oliver Neukum <oneukum@xxxxxxxx> Date: Mon, 18 Nov 2019 19:23:25 +0100 Subject: [PATCH] ath6kl: reduce WARN to dev_dbg() in callback The warn is triggered on a known race condition that is correctly handled. Using WARN() hinders automated testing. Reducing severity. Signed-off-by: Oliver Neukum <oneukum@xxxxxxxx> --- drivers/net/wireless/ath/ath6kl/htc_pipe.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/net/wireless/ath/ath6kl/htc_pipe.c b/drivers/net/wireless/ath/ath6kl/htc_pipe.c index c68848819a52..9b88d96bfe96 100644 --- a/drivers/net/wireless/ath/ath6kl/htc_pipe.c +++ b/drivers/net/wireless/ath/ath6kl/htc_pipe.c @@ -960,8 +960,8 @@ static int ath6kl_htc_pipe_rx_complete(struct ath6kl *ar, struct sk_buff *skb, * Thus the possibility of ar->htc_target being NULL * via ath6kl_recv_complete -> ath6kl_usb_io_comp_work. */ - if (WARN_ON_ONCE(!target)) { - ath6kl_err("Target not yet initialized\n"); + if (!target) { + ath6kl_dbg(ATH6KL_DBG_HTC, "Target not yet initialized\n"); status = -EINVAL; goto free_skb; } -- 2.16.4
