bisecting fixing commit since 614cb2751d3150850d459bee596c397f344a7936
building syzkaller on a2fe1cb58994e43fb14f141ecd6e6dcce9bb697a
testing commit 614cb2751d3150850d459bee596c397f344a7936
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: a3a85bce4f45999e30949326e2fab7cc4578e19f6b96ef7dbd2ad10521d11990
all runs: crashed: WARNING in ath6kl_htc_pipe_rx_complete
testing current HEAD 4357f03d6611753936e4d52fc251b54a6afb1b54
testing commit 4357f03d6611753936e4d52fc251b54a6afb1b54
compiler: gcc (GCC) 10.2.1 20210217, GNU ld (GNU Binutils for Debian) 2.35.2
kernel signature: f4bae2209ee6e073cd21a5024e22c96f20e73df9527df19015a5836eda5eff93
all runs: crashed: WARNING in ath6kl_htc_pipe_rx_complete
revisions tested: 2, total time: 20m38.883872311s (build: 13m10.35830887s, test: 6m58.882329439s)
the crash still happens on HEAD
commit msg: Merge tag 'pm-5.15-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
crash: WARNING in ath6kl_htc_pipe_rx_complete
------------[ cut here ]------------
WARNING: CPU: 1 PID: 2978 at drivers/net/wireless/ath/ath6kl/htc_pipe.c:963 free_htc_packet_container drivers/net/wireless/ath/ath6kl/htc_pipe.c:849 [inline]
WARNING: CPU: 1 PID: 2978 at drivers/net/wireless/ath/ath6kl/htc_pipe.c:963 ath6kl_htc_pipe_rx_complete+0xbed/0x1170 drivers/net/wireless/ath/ath6kl/htc_pipe.c:1086
Modules linked in:
CPU: 1 PID: 2978 Comm: kworker/1:4 Not tainted 5.15.0-rc1-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: events ath6kl_usb_io_comp_work
RIP: 0010:ath6kl_htc_pipe_rx_complete+0xbed/0x1170 drivers/net/wireless/ath/ath6kl/htc_pipe.c:963
Code: 85 5c 04 00 00 48 89 2b 48 89 99 d8 0c 00 00 48 8b 7c 24 10 45 31 e4 e8 a1 94 c6 03 48 c7 44 24 08 00 00 00 00 e9 f0 fa ff ff <0f> 0b 48 c7 c7 e0 73 54 89 41 bc ea ff ff ff e8 71 e4 9f 03 e9 d7
RSP: 0018:ffffc900011dfbc8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88805fcd0d60 RCX: 0000000000000000
RDX: 1ffff1100bf9a1ba RSI: ffff88806340e640 RDI: ffff88805fcd0dd0
RBP: ffff88801c264000 R08: ffff88805fcd0d60 R09: ffffffff8ede2a5f
R10: 0000000000000001 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffed100384c918 R14: ffff88801c264920 R15: ffff88801c2648c0
FS:  0000000000000000(0000) GS:ffff8880b9f00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563dadeeaa50 CR3: 00000000180a1000 CR4: 00000000001506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ath6kl_usb_io_comp_work+0xe4/0x140 drivers/net/wireless/ath/ath6kl/usb.c:598
 process_one_work+0x87f/0x1450 kernel/workqueue.c:2297
 worker_thread+0x598/0x1040 kernel/workqueue.c:2444
 kthread+0x38b/0x460 kernel/kthread.c:319
 ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:295