Hello, syzbot found the following issue on: HEAD commit: bbed346d5a96 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=131b44ac880000 kernel config: https://syzkaller.appspot.com/x/.config?x=3a4a45d2d827c1e dashboard link: https://syzkaller.appspot.com/bug?extid=dd9906bb8e89b22b1be7 compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/e8e91bc79312/disk-bbed346d.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/c1cb3fb3b77e/vmlinux-bbed346d.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+dd9906bb8e89b22b1be7@xxxxxxxxxxxxxxxxxxxxxxxxx ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 1 PID: 25883 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 25883 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 25883 Comm: syz-executor.0 Not tainted 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 604000c5 (nZCv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : debug_print_object lib/debugobjects.c:502 [inline] pc : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 lr : debug_print_object lib/debugobjects.c:502 [inline] lr : debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 sp : ffff8000157f3ae0 x29: ffff8000157f3ae0 x28: ffff0000c55b1a80 x27: 0000000000000024 x26: ffff8000157f3be8 x25: ffff800008134bec x24: ffff0000c55b1a80 x23: ffff80000efab740 x22: ffff80000d30c000 x21: ffff80000f0a5000 x20: ffff80000bfff5b8 x19: ffff0000ca0749d0 x18: 00000000000000c0 x17: 203a657079742074 x16: ffff80000db49158 x15: ffff0000c55b1a80 x14: 0000000000000000 x13: 00000000ffffffff x12: 0000000000040000 x11: 0000000000003457 x10: ffff800012a3d000 x9 : db08ffd6148ab200 x8 : db08ffd6148ab200 x7 : ffff80000819545c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000100000000 x0 : 0000000000000054 Call trace: debug_print_object lib/debugobjects.c:502 [inline] debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 debug_timer_assert_init kernel/time/timer.c:792 [inline] debug_assert_init kernel/time/timer.c:837 [inline] del_timer+0x34/0x1a8 kernel/time/timer.c:1257 try_to_grab_pending+0x84/0x54c kernel/workqueue.c:1275 __cancel_work_timer+0x74/0x2ac kernel/workqueue.c:3119 cancel_delayed_work_sync+0x24/0x38 kernel/workqueue.c:3301 mgmt_index_removed+0x158/0x198 net/bluetooth/mgmt.c:8952 hci_sock_bind+0x710/0xb1c net/bluetooth/hci_sock.c:1218 __sys_bind+0x148/0x1b0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __arm64_sys_bind+0x28/0x3c net/socket.c:1785 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 286 hardirqs last enabled at (285): [<ffff80000bfc89b4>] __raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:151 [inline] hardirqs last enabled at (285): [<ffff80000bfc89b4>] _raw_spin_unlock_irqrestore+0x48/0x8c kernel/locking/spinlock.c:194 hardirqs last disabled at (286): [<ffff80000812cb28>] try_to_grab_pending+0xac/0x54c kernel/workqueue.c:1264 softirqs last enabled at (264): [<ffff80000b1c7458>] spin_unlock_bh include/linux/spinlock.h:394 [inline] softirqs last enabled at (264): [<ffff80000b1c7458>] lock_sock_nested+0xc0/0xd8 net/core/sock.c:3400 softirqs last disabled at (262): [<ffff80000b1c7420>] spin_lock_bh include/linux/spinlock.h:354 [inline] softirqs last disabled at (262): [<ffff80000b1c7420>] lock_sock_nested+0x88/0xd8 net/core/sock.c:3396 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ WARNING: CPU: 0 PID: 25883 at kernel/workqueue.c:635 set_work_data kernel/workqueue.c:635 [inline] WARNING: CPU: 0 PID: 25883 at kernel/workqueue.c:635 clear_work_data kernel/workqueue.c:698 [inline] WARNING: CPU: 0 PID: 25883 at kernel/workqueue.c:635 __cancel_work_timer+0x29c/0x2ac kernel/workqueue.c:3162 Modules linked in: CPU: 0 PID: 25883 Comm: syz-executor.0 Tainted: G W 6.0.0-rc7-syzkaller-18095-gbbed346d5a96 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/30/2022 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : set_work_data kernel/workqueue.c:635 [inline] pc : clear_work_data kernel/workqueue.c:698 [inline] pc : __cancel_work_timer+0x29c/0x2ac kernel/workqueue.c:3162 lr : set_work_data kernel/workqueue.c:635 [inline] lr : clear_work_data kernel/workqueue.c:698 [inline] lr : __cancel_work_timer+0x29c/0x2ac kernel/workqueue.c:3162 sp : ffff8000157f3bd0 x29: ffff8000157f3c10 x28: ffff0000c55b1a80 x27: 0000000000000024 x26: ffff8000157f3be8 x25: ffff800008134bec x24: ffff0000c55b1a80 x23: ffff000112628600 x22: 0000000000000000 x21: 0000001fffffffc0 x20: 0000000000000000 x19: ffff0000ca074988 x18: 00000000000000c0 x17: ffff80000dd0b198 x16: ffff80000db49158 x15: ffff0000c55b1a80 x14: 0000000000000000 x13: 00000000ffffffff x12: 0000000000040000 x11: 000000000001dc58 x10: ffff800012a3d000 x9 : ffff80000812e20c x8 : 000000000001dc59 x7 : ffff80000813754c x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : 0000000000000002 x2 : 0000000000000008 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: set_work_data kernel/workqueue.c:635 [inline] clear_work_data kernel/workqueue.c:698 [inline] __cancel_work_timer+0x29c/0x2ac kernel/workqueue.c:3162 cancel_delayed_work_sync+0x24/0x38 kernel/workqueue.c:3301 mgmt_index_removed+0x158/0x198 net/bluetooth/mgmt.c:8952 hci_sock_bind+0x710/0xb1c net/bluetooth/hci_sock.c:1218 __sys_bind+0x148/0x1b0 net/socket.c:1776 __do_sys_bind net/socket.c:1787 [inline] __se_sys_bind net/socket.c:1785 [inline] __arm64_sys_bind+0x28/0x3c net/socket.c:1785 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall arch/arm64/kernel/syscall.c:52 [inline] el0_svc_common+0x138/0x220 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x48/0x164 arch/arm64/kernel/syscall.c:206 el0_svc+0x58/0x150 arch/arm64/kernel/entry-common.c:636 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 irq event stamp: 366 hardirqs last enabled at (365): [<ffff80000bfb8138>] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (365): [<ffff80000bfb8138>] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (366): [<ffff80000bfb5fbc>] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:404 softirqs last enabled at (360): [<ffff8000080102e4>] _stext+0x2e4/0x37c softirqs last disabled at (289): [<ffff800008017c14>] ____do_softirq+0x14/0x20 arch/arm64/kernel/irq.c:79 ---[ end trace 0000000000000000 ]--- --- This report is generated by a bot. 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