Hello, syzbot found the following issue on: HEAD commit: 8de1e7afcc1c Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=100bd0df680000 kernel config: https://syzkaller.appspot.com/x/.config?x=3e6feaeda5dcbc27 dashboard link: https://syzkaller.appspot.com/bug?extid=298932bae5cf3522b729 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/0f00907f9764/disk-8de1e7af.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/0502fe78c60d/vmlinux-8de1e7af.xz kernel image: https://storage.googleapis.com/syzbot-assets/192135168cc0/Image-8de1e7af.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+298932bae5cf3522b729@xxxxxxxxxxxxxxxxxxxxxxxxx ------------[ cut here ]------------ WARNING: CPU: 0 PID: 15263 at kernel/workqueue.c:1725 current_wq_worker kernel/workqueue_internal.h:69 [inline] WARNING: CPU: 0 PID: 15263 at kernel/workqueue.c:1725 is_chained_work kernel/workqueue.c:1663 [inline] WARNING: CPU: 0 PID: 15263 at kernel/workqueue.c:1725 __queue_work+0xe14/0x1338 kernel/workqueue.c:1724 Modules linked in: CPU: 0 PID: 15263 Comm: syz-executor.3 Not tainted 6.6.0-rc7-syzkaller-g8de1e7afcc1c #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/09/2023 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __queue_work+0xe14/0x1338 kernel/workqueue_internal.h:69 lr : current_wq_worker kernel/workqueue_internal.h:69 [inline] lr : is_chained_work kernel/workqueue.c:1663 [inline] lr : __queue_work+0xe14/0x1338 kernel/workqueue.c:1724 sp : ffff8000998a7410 x29: ffff8000998a7450 x28: 1fffe0001a720c92 x27: ffff0000d459c9c0 x26: dfff800000000000 x25: ffff0000d459c800 x24: 0000000000000008 x23: 0000000000000000 x22: ffff0000ccde0000 x21: 0000000000000000 x20: 0000000000400140 x19: ffff0000d12e4da0 x18: ffff8000998a7400 x17: ffff800080a9cd40 x16: ffff80008a71b23c x15: 0000000000000001 x14: 1fffe0001a25c9b4 x13: 0000000000000000 x12: 0000000000000000 x11: 0000000000040000 x10: 0000000000001a0a x9 : ffff80009880e000 x8 : 0000000000001a0b x7 : ffff800089878008 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008022056c x2 : ffff0000d12e4da0 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: current_wq_worker kernel/workqueue_internal.h:69 [inline] is_chained_work kernel/workqueue.c:1663 [inline] __queue_work+0xe14/0x1338 kernel/workqueue.c:1724 queue_work_on+0x9c/0x128 kernel/workqueue.c:1834 queue_work include/linux/workqueue.h:554 [inline] hci_send_acl+0x904/0xc48 net/bluetooth/hci_core.c:3237 l2cap_do_send+0x238/0x350 l2cap_chan_send+0x190c/0x1e5c l2cap_sock_sendmsg+0x184/0x2a8 net/bluetooth/l2cap_sock.c:1154 sock_sendmsg_nosec net/socket.c:730 [inline] __sock_sendmsg net/socket.c:745 [inline] sock_write_iter+0x2d8/0x448 net/socket.c:1158 do_iter_write+0x65c/0xaa8 fs/read_write.c:860 vfs_writev fs/read_write.c:933 [inline] do_writev+0x220/0x3ec fs/read_write.c:976 __do_sys_writev fs/read_write.c:1049 [inline] __se_sys_writev fs/read_write.c:1046 [inline] __arm64_sys_writev+0x80/0x94 fs/read_write.c:1046 __invoke_syscall arch/arm64/kernel/syscall.c:37 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:51 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:136 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:155 el0_svc+0x54/0x158 arch/arm64/kernel/entry-common.c:678 el0t_64_sync_handler+0x84/0xfc arch/arm64/kernel/entry-common.c:696 el0t_64_sync+0x190/0x194 arch/arm64/kernel/entry.S:595 irq event stamp: 364 hardirqs last enabled at (363): [<ffff8000801d1cd8>] __local_bh_enable_ip+0x24c/0x4ac kernel/softirq.c:386 hardirqs last disabled at (364): [<ffff800080220558>] queue_work_on+0x50/0x128 kernel/workqueue.c:1831 softirqs last enabled at (362): [<ffff8000898784b4>] spin_unlock_bh include/linux/spinlock.h:396 [inline] softirqs last enabled at (362): [<ffff8000898784b4>] hci_queue_acl net/bluetooth/hci_core.c:3225 [inline] softirqs last enabled at (362): [<ffff8000898784b4>] hci_send_acl+0x870/0xc48 net/bluetooth/hci_core.c:3235 softirqs last disabled at (360): [<ffff800089878008>] spin_lock_bh include/linux/spinlock.h:356 [inline] softirqs last disabled at (360): [<ffff800089878008>] hci_queue_acl net/bluetooth/hci_core.c:3208 [inline] softirqs last disabled at (360): [<ffff800089878008>] hci_send_acl+0x3c4/0xc48 net/bluetooth/hci_core.c:3235 ---[ end trace 0000000000000000 ]--- --- This report is generated by a bot. 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