lo speed is unknown, defaulting to 1000 ------------[ cut here ]------------ refcount_t: addition on 0; use-after-free. WARNING: CPU: 1 PID: 12319 at lib/refcount.c:25 refcount_warn_saturate+0x180/0x1c8 lib/refcount.c:25 Modules linked in: CPU: 1 PID: 12319 Comm: syz-executor.5 Not tainted 6.0.0-rc7-syzkaller-18098-g5911b92626df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : refcount_warn_saturate+0x180/0x1c8 lib/refcount.c:25 lr : refcount_warn_saturate+0x180/0x1c8 lib/refcount.c:25 sp : ffff8000200bbae0 x29: ffff8000200bbae0 x28: 00000000002e0003 x27: 00000000000008a1 x26: ffff0000e68fe888 x25: 0000000000000000 x24: ffff0000e6af3a40 x23: ffff80000b1ba318 x22: 0000000000000000 x21: ffff0000e6af3980 x20: 0000000000000002 x19: ffff80000d8c8000 x18: 00000000000002e9 x17: 0000000000000000 x16: ffff80000db49158 x15: ffff0000edee3500 x14: 0000000000000000 x13: 00000000ffffffff x12: ffff0000edee3500 x11: ff808000081c0d5c x10: 0000000000000000 x9 : 9f03aebf1c547200 x8 : 9f03aebf1c547200 x7 : ffff800008161d1c x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : 0000000100000000 x0 : 000000000000002a Call trace: refcount_warn_saturate+0x180/0x1c8 lib/refcount.c:25 __refcount_inc include/linux/refcount.h:250 [inline] refcount_inc include/linux/refcount.h:267 [inline] sock_hold include/net/sock.h:774 [inline] nr_release+0x218/0x274 net/netrom/af_netrom.c:520 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3dc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x14c kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbe0 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb40 kernel/signal.c:2857 do_signal+0x128/0x438 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1f0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637 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: 14038 hardirqs last enabled at (14037): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (14037): [] finish_lock_switch+0x94/0xe8 kernel/sched/core.c:4942 hardirqs last disabled at (14038): [] el1_dbg+0x24/0x5c arch/arm64/kernel/entry-common.c:404 softirqs last enabled at (12748): [] spin_unlock_bh include/linux/spinlock.h:394 [inline] softirqs last enabled at (12748): [] rxrpc_service_prealloc_one+0x39c/0x41c net/rxrpc/call_accept.c:145 softirqs last disabled at (12746): [] spin_lock_bh include/linux/spinlock.h:354 [inline] softirqs last disabled at (12746): [] rxrpc_service_prealloc_one+0x35c/0x41c net/rxrpc/call_accept.c:143 ---[ end trace 0000000000000000 ]--- INFO: trying to register non-static key. The code is fine but needs lockdep annotation, or maybe you didn't initialize this object before use? turning off the locking correctness validator. CPU: 1 PID: 12319 Comm: syz-executor.5 Tainted: G W 6.0.0-rc7-syzkaller-18098-g5911b92626df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 Call trace: dump_backtrace+0x1c4/0x1f0 arch/arm64/kernel/stacktrace.c:156 show_stack+0x2c/0x54 arch/arm64/kernel/stacktrace.c:163 __dump_stack lib/dump_stack.c:88 [inline] dump_stack_lvl+0x104/0x16c lib/dump_stack.c:106 dump_stack+0x1c/0x58 lib/dump_stack.c:113 assign_lock_key+0x134/0x140 kernel/locking/lockdep.c:979 register_lock_class+0xc4/0x2f8 kernel/locking/lockdep.c:1292 __lock_acquire+0xa8/0x30a4 kernel/locking/lockdep.c:4932 lock_acquire+0x100/0x1f8 kernel/locking/lockdep.c:5666 __raw_write_lock_bh include/linux/rwlock_api_smp.h:202 [inline] _raw_write_lock_bh+0x54/0x6c kernel/locking/spinlock.c:334 sock_orphan include/net/sock.h:2065 [inline] nr_release+0x70/0x274 net/netrom/af_netrom.c:521 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3dc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x14c kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbe0 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb40 kernel/signal.c:2857 do_signal+0x128/0x438 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1f0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 12319 Comm: syz-executor.5 Tainted: G W 6.0.0-rc7-syzkaller-18098-g5911b92626df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 60400005 (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 : ffff8000200bba10 x29: ffff8000200bba10 x28: 00000000002e0003 x27: 00000000000008a1 x26: ffff0000e68fe888 x25: 0000000000000000 x24: ffff0000e6af3a40 x23: ffff80000efbd668 x22: ffff80000d30c000 x21: ffff80000f0a5000 x20: ffff80000bfff5b8 x19: ffff0000e8ffd560 x18: 000000000000017a x17: 0000000000000000 x16: 00000000000001cf x15: 0000000000000055 x14: 0000000002e0b56c x13: 00000000000001cf x12: 0000000000000001 x11: ff808000081c0d5c x10: 0000000000000000 x9 : 9f03aebf1c547200 x8 : 9f03aebf1c547200 x7 : 0000000000000000 x6 : ffff800008161d1c x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000edee3500 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 sk_stop_timer+0x24/0xb4 net/core/sock.c:3294 nr_stop_t1timer+0x24/0x34 net/netrom/nr_timer.c:84 nr_disconnect+0x24/0xc0 net/netrom/nr_subr.c:261 nr_release+0x178/0x274 net/netrom/af_netrom.c:529 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3dc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x14c kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbe0 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb40 kernel/signal.c:2857 do_signal+0x128/0x438 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1f0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637 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: 14118 hardirqs last enabled at (14117): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (14117): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (14116): [] preempt_schedule_irq+0x80/0x110 kernel/sched/core.c:6807 softirqs last enabled at (14112): [] _stext+0x2e4/0x37c softirqs last disabled at (14118): [] sock_orphan include/net/sock.h:2065 [inline] softirqs last disabled at (14118): [] nr_release+0x70/0x274 net/netrom/af_netrom.c:521 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 12319 Comm: syz-executor.5 Tainted: G W 6.0.0-rc7-syzkaller-18098-g5911b92626df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 60400005 (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 : ffff8000200bba10 x29: ffff8000200bba10 x28: 00000000002e0003 x27: 00000000000008a1 x26: ffff0000e68fe888 x25: 0000000000000000 x24: ffff0000e6af3a40 x23: ffff80000efbd668 x22: ffff80000d30c000 x21: ffff80000f0a5000 x20: ffff80000bfff5b8 x19: ffff0000e8ffd5b0 x18: 0000000000000285 x17: 0000000000000000 x16: 00000000000002b2 x15: 000000000000002d x14: 0000000002e43841 x13: 00000000000002b2 x12: 0000000000000001 x11: ff808000081c0d5c x10: 0000000000000000 x9 : 9f03aebf1c547200 x8 : 9f03aebf1c547200 x7 : 0000000000000000 x6 : ffff800008161d1c x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000edee3500 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 sk_stop_timer+0x24/0xb4 net/core/sock.c:3294 nr_stop_t2timer+0x24/0x34 net/netrom/nr_timer.c:89 nr_disconnect+0x2c/0xc0 net/netrom/nr_subr.c:262 nr_release+0x178/0x274 net/netrom/af_netrom.c:529 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3dc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x14c kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbe0 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb40 kernel/signal.c:2857 do_signal+0x128/0x438 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1f0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637 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: 14118 hardirqs last enabled at (14117): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (14117): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (14116): [] preempt_schedule_irq+0x80/0x110 kernel/sched/core.c:6807 softirqs last enabled at (14112): [] _stext+0x2e4/0x37c softirqs last disabled at (14118): [] sock_orphan include/net/sock.h:2065 [inline] softirqs last disabled at (14118): [] nr_release+0x70/0x274 net/netrom/af_netrom.c:521 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 12319 Comm: syz-executor.5 Tainted: G W 6.0.0-rc7-syzkaller-18098-g5911b92626df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 60400005 (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 : ffff8000200bba10 x29: ffff8000200bba10 x28: 00000000002e0003 x27: 00000000000008a1 x26: ffff0000e68fe888 x25: 0000000000000000 x24: ffff0000e6af3a40 x23: ffff80000efbd668 x22: ffff80000d30c000 x21: ffff80000f0a5000 x20: ffff80000bfff5b8 x19: ffff0000e8ffd600 x18: 00000000000002cb x17: ffff80000bffd6bc x16: 000000000000b67e x15: 0000000000000191 x14: 0000000002d547e5 x13: 0000000000000063 x12: 0000000000000001 x11: ff808000081c0d5c x10: 0000000000000000 x9 : 9f03aebf1c547200 x8 : 9f03aebf1c547200 x7 : 0000000000000000 x6 : ffff800008161d1c x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefddcd0 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 sk_stop_timer+0x24/0xb4 net/core/sock.c:3294 nr_stop_t4timer+0x24/0x34 net/netrom/nr_timer.c:94 nr_disconnect+0x34/0xc0 net/netrom/nr_subr.c:263 nr_release+0x178/0x274 net/netrom/af_netrom.c:529 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3dc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x14c kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbe0 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb40 kernel/signal.c:2857 do_signal+0x128/0x438 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1f0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637 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: 14118 hardirqs last enabled at (14117): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (14117): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (14116): [] preempt_schedule_irq+0x80/0x110 kernel/sched/core.c:6807 softirqs last enabled at (14112): [] _stext+0x2e4/0x37c softirqs last disabled at (14118): [] sock_orphan include/net/sock.h:2065 [inline] softirqs last disabled at (14118): [] nr_release+0x70/0x274 net/netrom/af_netrom.c:521 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 12319 Comm: syz-executor.5 Tainted: G W 6.0.0-rc7-syzkaller-18098-g5911b92626df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 60400005 (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 : ffff8000200bba10 x29: ffff8000200bba10 x28: 00000000002e0003 x27: 00000000000008a1 x26: ffff0000e68fe888 x25: 0000000000000000 x24: ffff0000e6af3a40 x23: ffff80000efbd668 x22: ffff80000d30c000 x21: ffff80000f0a5000 x20: ffff80000bfff5b8 x19: ffff0000e8ffd650 x18: 00000000000001ec x17: ffff80000bffd6bc x16: 0000000000000239 x15: 000000000000004d x14: 0000000002e1af33 x13: 0000000000000239 x12: 0000000000000001 x11: ff808000081c0d5c x10: 0000000000000000 x9 : 9f03aebf1c547200 x8 : 9f03aebf1c547200 x7 : 0000000000000000 x6 : ffff800008161d1c x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0000edee3500 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 sk_stop_timer+0x24/0xb4 net/core/sock.c:3294 nr_stop_idletimer+0x24/0x34 net/netrom/nr_timer.c:99 nr_disconnect+0x3c/0xc0 net/netrom/nr_subr.c:264 nr_release+0x178/0x274 net/netrom/af_netrom.c:529 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3dc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x14c kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbe0 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb40 kernel/signal.c:2857 do_signal+0x128/0x438 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1f0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637 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: 14118 hardirqs last enabled at (14117): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (14117): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (14116): [] preempt_schedule_irq+0x80/0x110 kernel/sched/core.c:6807 softirqs last enabled at (14112): [] _stext+0x2e4/0x37c softirqs last disabled at (14118): [] sock_orphan include/net/sock.h:2065 [inline] softirqs last disabled at (14118): [] nr_release+0x70/0x274 net/netrom/af_netrom.c:521 ---[ end trace 0000000000000000 ]--- ------------[ cut here ]------------ ODEBUG: assert_init not available (active state 0) object type: timer_list hint: 0x0 WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_print_object lib/debugobjects.c:502 [inline] WARNING: CPU: 1 PID: 12319 at lib/debugobjects.c:505 debug_object_assert_init+0x144/0x198 lib/debugobjects.c:892 Modules linked in: CPU: 1 PID: 12319 Comm: syz-executor.5 Tainted: G W 6.0.0-rc7-syzkaller-18098-g5911b92626df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 60400005 (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 : ffff8000200bba00 x29: ffff8000200bba00 x28: 00000000002e0003 x27: 00000000000008a1 x26: ffff0000e68fe888 x25: 0000000000000000 x24: ffff0000e6af3a40 x23: ffff80000efbd668 x22: ffff80000d30c000 x21: ffff80000f0a5000 x20: ffff80000bfff5b8 x19: ffff0000e8ffd2f8 x18: 0000000000000121 x17: 0000000000000000 x16: 0000000000000197 x15: 0000000000000076 x14: 0000000002de7fa6 x13: 0000000000000197 x12: 0000000000000001 x11: ff808000081c0d5c x10: 0000000000000000 x9 : 9f03aebf1c547200 x8 : 9f03aebf1c547200 x7 : 0000000000000000 x6 : ffff800008161d1c x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : ffff0001fefddcd0 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 sk_stop_timer+0x24/0xb4 net/core/sock.c:3294 nr_stop_heartbeat+0x24/0x34 net/netrom/nr_timer.c:104 nr_destroy_socket+0xb4/0x298 net/netrom/af_netrom.c:263 nr_release+0x180/0x274 net/netrom/af_netrom.c:530 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3dc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x14c kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbe0 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb40 kernel/signal.c:2857 do_signal+0x128/0x438 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1f0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637 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: 14118 hardirqs last enabled at (14117): [] __exit_to_kernel_mode arch/arm64/kernel/entry-common.c:84 [inline] hardirqs last enabled at (14117): [] exit_to_kernel_mode+0xe8/0x118 arch/arm64/kernel/entry-common.c:94 hardirqs last disabled at (14116): [] preempt_schedule_irq+0x80/0x110 kernel/sched/core.c:6807 softirqs last enabled at (14112): [] _stext+0x2e4/0x37c softirqs last disabled at (14118): [] sock_orphan include/net/sock.h:2065 [inline] softirqs last disabled at (14118): [] nr_release+0x70/0x274 net/netrom/af_netrom.c:521 ---[ end trace 0000000000000000 ]--- Unable to handle kernel NULL pointer dereference at virtual address 00000000000000a0 Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004 CM = 0, WnR = 0 user pgtable: 4k pages, 48-bit VAs, pgdp=0000000109380000 [00000000000000a0] pgd=0000000000000000, p4d=0000000000000000 Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 0 PID: 12319 Comm: syz-executor.5 Tainted: G W 6.0.0-rc7-syzkaller-18098-g5911b92626df #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/26/2022 pstate: 80400005 (Nzcv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : release_sock+0x4c/0x108 net/core/sock.c:3413 lr : release_sock+0x48/0x108 net/core/sock.c:3407 sp : ffff8000200bbad0 x29: ffff8000200bbad0 x28: 00000000002e0003 x27: 00000000000008a1 x26: ffff0000e68fe888 x25: 0000000000000000 x24: ffff0000e6af3a40 x23: ffff80000b1ba318 x22: 0000000000000000 x21: ffff80000b8d5268 x20: ffff0000e8ffd000 x19: ffff0000e8ffd098 x18: 0000000000000121 x17: 0000000000000000 x16: 0000000000000197 x15: 0000000000000076 x14: 0000000002de7fa6 x13: 0000000000000197 x12: 0000000000000001 x11: ff8080000b1bcdc8 x10: 0000000000000000 x9 : ffff80000b1bcdc8 x8 : 0000000000000000 x7 : 0000000000000000 x6 : ffff80000b1bcdac x5 : 0000000000000000 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000001 x1 : 0000000000000000 x0 : 0000000000000000 Call trace: release_sock+0x4c/0x108 net/core/sock.c:3413 nr_release+0x194/0x274 net/netrom/af_netrom.c:553 __sock_release net/socket.c:650 [inline] sock_close+0x50/0xf0 net/socket.c:1365 __fput+0x198/0x3dc fs/file_table.c:320 ____fput+0x20/0x30 fs/file_table.c:353 task_work_run+0xc4/0x14c kernel/task_work.c:177 exit_task_work include/linux/task_work.h:38 [inline] do_exit+0x26c/0xbe0 kernel/exit.c:795 do_group_exit+0x70/0xe8 kernel/exit.c:925 get_signal+0xb0c/0xb40 kernel/signal.c:2857 do_signal+0x128/0x438 arch/arm64/kernel/signal.c:1071 do_notify_resume+0xc0/0x1f0 arch/arm64/kernel/signal.c:1124 prepare_exit_to_user_mode arch/arm64/kernel/entry-common.c:137 [inline] exit_to_user_mode arch/arm64/kernel/entry-common.c:142 [inline] el0_svc+0x9c/0x150 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:654 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:581 Code: 94002106 14000002 97438b94 f9401688 (f9405116) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: 94002106 bl 0x8418 4: 14000002 b 0xc 8: 97438b94 bl 0xfffffffffd0e2e58 c: f9401688 ldr x8, [x20, #40] * 10: f9405116 ldr x22, [x8, #160] <-- trapping instruction