Bluetooth: hci1 command 0x0406 tx timeout
Bluetooth: hci2 command 0x0406 tx timeout
Bluetooth: hci0 command 0x0406 tx timeout
Bluetooth: hci4 command 0x0406 tx timeout
Bluetooth: hci5 command 0x0406 tx timeout
BUG: workqueue lockup - pool cpus=0 node=0 flags=0x0 nice=0 stuck for 160s!
INFO: task kworker/u4:0:5 blocked for more than 140 seconds.
Showing busy workqueues and worker pools:
workqueue events: flags=0x0
pwq 0:
Not tainted 4.14.272-syzkaller #0
cpus=0 node=0 flags=0x0 nice=0 active=17/256 refcnt=18
in-flight: 24:rtc_timer_do_work
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
pending: defense_work_handler, vmstat_shepherd, cache_reap, defense_work_handler, wait_rcu_exp_gp, defense_work_handler, defense_work_handler, defense_work_handler
kworker/u4:0 D
, macvlan_process_broadcast, macvlan_process_broadcast, macvlan_process_broadcast
27112 5 2 0x80000000
, macvlan_process_broadcast, macvlan_process_broadcast, macvlan_process_broadcast, macvlan_process_broadcast, macvlan_process_broadcast
workqueue events_long: flags=0x0
Workqueue: events_unbound fsnotify_mark_destroy_workfn
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending: gc_worker
workqueue events_unbound: flags=0x2
pwq 4: cpus=0-1 flags=0x4 nice=0 active=4/512 refcnt=7
in-flight: 5:fsnotify_mark_destroy_workfn fsnotify_mark_destroy_workfn, 25:fsnotify_connector_destroy_workfn fsnotify_connector_destroy_workfn
workqueue events_power_efficient: flags=0x80
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=4/256 refcnt=5
Call Trace:
pending: process_srcu, neigh_periodic_work, do_cache_clean, check_lifetime
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
workqueue mm_percpu_wq: flags=0x8
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending:
vmstat_update
workqueue dm_bufio_cache: flags=0x8
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/256 refcnt=2
pending:
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
work_fn
workqueue ipv6_addrconf: flags=0x40008
schedule_timeout+0x80a/0xe90 kernel/time/timer.c:1724
pwq 0:
cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
pending:
addrconf_verify_work
workqueue krxrpcd: flags=0x0
pwq 0: cpus=0 node=0 flags=0x0 nice=0 active=1/1 refcnt=2
pending:
rxrpc_discard_expired_client_conns
pool 0:
do_wait_for_common kernel/sched/completion.c:91 [inline]
__wait_for_common kernel/sched/completion.c:112 [inline]
wait_for_common+0x272/0x430 kernel/sched/completion.c:123
cpus=0 node=0 flags=0x0 nice=0 hung=161s workers=5 idle: 3624 9042 9043 3
pool 4: cpus=0-1 flags=0x4 nice=0 hung=0s workers=7 idle: 7926 22 9276 232 3538
__synchronize_srcu+0x10a/0x1d0 kernel/rcu/srcutree.c:898
fsnotify_mark_destroy_workfn+0xed/0x2e0 fs/notify/mark.c:757
process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
kthread+0x30d/0x420 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
INFO: task kworker/u4:2:25 blocked for more than 140 seconds.
Not tainted 4.14.272-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
kworker/u4:2 D27424 25 2 0x80000000
Workqueue: events_unbound fsnotify_connector_destroy_workfn
Call Trace:
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
schedule_timeout+0x80a/0xe90 kernel/time/timer.c:1724
do_wait_for_common kernel/sched/completion.c:91 [inline]
__wait_for_common kernel/sched/completion.c:112 [inline]
wait_for_common+0x272/0x430 kernel/sched/completion.c:123
__synchronize_srcu+0x10a/0x1d0 kernel/rcu/srcutree.c:898
fsnotify_connector_destroy_workfn+0x49/0xa0 fs/notify/mark.c:156
process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
kthread+0x30d/0x420 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
INFO: task syz-executor.1:19367 blocked for more than 140 seconds.
Not tainted 4.14.272-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1 D29032 19367 7987 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
_synchronize_rcu_expedited+0x522/0x770 kernel/rcu/tree_exp.h:615
synchronize_sched+0xd8/0x1b0 kernel/rcu/tree.c:3239
rcu_sync_enter+0x16e/0x2d0 kernel/rcu/sync.c:131
percpu_down_write+0x59/0x3e0 kernel/locking/percpu-rwsem.c:143
ext4_ind_migrate+0x17e/0x620 fs/ext4/migrate.c:646
ext4_ioctl_setflags+0x545/0x680 fs/ext4/ioctl.c:353
ext4_ioctl+0x21e8/0x3800 fs/ext4/ioctl.c:697
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fc361302049
RSP: 002b:00007fc35fc77168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007fc361414f60 RCX: 00007fc361302049
RDX: 00000000200000c0 RSI: 0000000040086602 RDI: 0000000000000003
RBP: 00007fc36135c08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd56564caf R14: 00007fc35fc77300 R15: 0000000000022000
INFO: task syz-executor.1:19374 blocked for more than 140 seconds.
Not tainted 4.14.272-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.1 D30688 19374 7987 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline]
rwsem_down_write_failed+0x343/0x6d0 kernel/locking/rwsem-xadd.c:617
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105
__down_write arch/x86/include/asm/rwsem.h:126 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:56
inode_lock include/linux/fs.h:719 [inline]
do_truncate+0xf0/0x1a0 fs/open.c:61
do_sys_ftruncate.constprop.0+0x3a3/0x480 fs/open.c:205
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7fc361302049
RSP: 002b:00007fc35fc56168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007fc361415030 RCX: 00007fc361302049
RDX: 0000000000000000 RSI: 0000000002008001 RDI: 0000000000000003
RBP: 00007fc36135c08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd56564caf R14: 00007fc35fc56300 R15: 0000000000022000
INFO: task syz-executor.4:19370 blocked for more than 140 seconds.
Not tainted 4.14.272-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4 D29032 19370 7988 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
rcu_sync_enter+0x233/0x2d0 kernel/rcu/sync.c:135
percpu_down_write+0x59/0x3e0 kernel/locking/percpu-rwsem.c:143
ext4_ind_migrate+0x17e/0x620 fs/ext4/migrate.c:646
ext4_ioctl_setflags+0x545/0x680 fs/ext4/ioctl.c:353
ext4_ioctl+0x21e8/0x3800 fs/ext4/ioctl.c:697
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f7821d54049
RSP: 002b:00007f78206c9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f7821e66f60 RCX: 00007f7821d54049
RDX: 00000000200000c0 RSI: 0000000040086602 RDI: 0000000000000004
RBP: 00007f7821dae08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff797c4b3f R14: 00007f78206c9300 R15: 0000000000022000
INFO: task syz-executor.4:19387 blocked for more than 140 seconds.
Not tainted 4.14.272-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.4 D30688 19387 7988 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline]
rwsem_down_write_failed+0x343/0x6d0 kernel/locking/rwsem-xadd.c:617
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105
__down_write arch/x86/include/asm/rwsem.h:126 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:56
inode_lock include/linux/fs.h:719 [inline]
do_truncate+0xf0/0x1a0 fs/open.c:61
do_sys_ftruncate.constprop.0+0x3a3/0x480 fs/open.c:205
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f7821d54049
RSP: 002b:00007f78206a8168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f7821e67030 RCX: 00007f7821d54049
RDX: 0000000000000000 RSI: 0000000002008001 RDI: 0000000000000004
RBP: 00007f7821dae08d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff797c4b3f R14: 00007f78206a8300 R15: 0000000000022000
INFO: task syz-executor.2:19428 blocked for more than 140 seconds.
Not tainted 4.14.272-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28488 19428 7990 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
rcu_sync_enter+0x233/0x2d0 kernel/rcu/sync.c:135
percpu_down_write+0x59/0x3e0 kernel/locking/percpu-rwsem.c:143
ext4_ind_migrate+0x17e/0x620 fs/ext4/migrate.c:646
ext4_ioctl_setflags+0x545/0x680 fs/ext4/ioctl.c:353
ext4_ioctl+0x21e8/0x3800 fs/ext4/ioctl.c:697
vfs_ioctl fs/ioctl.c:46 [inline]
file_ioctl fs/ioctl.c:500 [inline]
do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684
SYSC_ioctl fs/ioctl.c:701 [inline]
SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f387e3d7049
RSP: 002b:00007f387cd0a168 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f387e4ea100 RCX: 00007f387e3d7049
RDX: 00000000200000c0 RSI: 0000000040086602 RDI: 0000000000000013
RBP: 00007f387e43108d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd72fda50f R14: 00007f387cd0a300 R15: 0000000000022000
INFO: task syz-executor.2:19440 blocked for more than 140 seconds.
Not tainted 4.14.272-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D30688 19440 7990 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline]
rwsem_down_write_failed+0x343/0x6d0 kernel/locking/rwsem-xadd.c:617
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105
__down_write arch/x86/include/asm/rwsem.h:126 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:56
inode_lock include/linux/fs.h:719 [inline]
do_truncate+0xf0/0x1a0 fs/open.c:61
do_sys_ftruncate.constprop.0+0x3a3/0x480 fs/open.c:205
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f387e3d7049
RSP: 002b:00007f387cce9168 EFLAGS: 00000246 ORIG_RAX: 000000000000004d
RAX: ffffffffffffffda RBX: 00007f387e4ea1d0 RCX: 00007f387e3d7049
RDX: 0000000000000000 RSI: 0000000002008001 RDI: 0000000000000013
RBP: 00007f387e43108d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd72fda50f R14: 00007f387cce9300 R15: 0000000000022000
INFO: task syz-executor.2:19442 blocked for more than 140 seconds.
Not tainted 4.14.272-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
syz-executor.2 D28864 19442 7990 0x00000004
Call Trace:
context_switch kernel/sched/core.c:2811 [inline]
__schedule+0x88b/0x1de0 kernel/sched/core.c:3387
schedule+0x8d/0x1b0 kernel/sched/core.c:3431
__rwsem_down_write_failed_common kernel/locking/rwsem-xadd.c:588 [inline]
rwsem_down_write_failed+0x343/0x6d0 kernel/locking/rwsem-xadd.c:617
call_rwsem_down_write_failed+0x13/0x20 arch/x86/lib/rwsem.S:105
__down_write arch/x86/include/asm/rwsem.h:126 [inline]
down_write+0x4f/0x90 kernel/locking/rwsem.c:56
inode_lock include/linux/fs.h:719 [inline]
process_measurement+0xac8/0xb20 security/integrity/ima/ima_main.c:206
ima_file_mmap+0x4d/0x60 security/integrity/ima/ima_main.c:317
security_mmap_file+0x158/0x1a0 security/security.c:928
vm_mmap_pgoff+0xbe/0x1a0 mm/util.c:329
SYSC_mmap_pgoff mm/mmap.c:1545 [inline]
SyS_mmap_pgoff+0x249/0x510 mm/mmap.c:1503
do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292
entry_SYSCALL_64_after_hwframe+0x46/0xbb
RIP: 0033:0x7f387e3d7049
RSP: 002b:00007f387ccc8168 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007f387e4ea2a0 RCX: 00007f387e3d7049
RDX: 0000000000800006 RSI: 000000000000a000 RDI: 0000000020001000
RBP: 00007f387e43108d R08: 0000000000000006 R09: 0000000000406000
R10: 0000000000000011 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd72fda50f R14: 00007f387ccc8300 R15: 0000000000022000
Showing all locks held in the system:
2 locks held by kworker/u4:0/5:
#0: ("events_unbound"){+.+.}, at: [<ffffffff81364ee0>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088
#1: ((reaper_work).work){+.+.}, at: [<ffffffff81364f16>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092
2 locks held by kworker/u4:2/25:
#0: ("events_unbound"){+.+.}, at: [<ffffffff81364ee0>] process_one_work+0x6b0/0x14a0 kernel/workqueue.c:2088
#1: (connector_reaper_work){+.+.}, at: [<ffffffff81364f16>] process_one_work+0x6e6/0x14a0 kernel/workqueue.c:2092
1 lock held by khungtaskd/1533:
#0: (tasklist_lock){.+.+}, at: [<ffffffff8702281c>] debug_show_all_locks+0x7c/0x21a kernel/locking/lockdep.c:4548
3 locks held by syz-executor.1/19367:
#0: (sb_writers#3){.+.+}, at: [<ffffffff818df34d>] sb_start_write include/linux/fs.h:1551 [inline]
#0: (sb_writers#3){.+.+}, at: [<ffffffff818df34d>] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81bc5cc3>] inode_lock include/linux/fs.h:719 [inline]
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81bc5cc3>] ext4_ioctl+0x1bb3/0x3800 fs/ext4/ioctl.c:692
#2: (rcu_sched_state.exp_mutex){+.+.}, at: [<ffffffff81470152>] exp_funnel_lock kernel/rcu/tree_exp.h:272 [inline]
#2: (rcu_sched_state.exp_mutex){+.+.}, at: [<ffffffff81470152>] _synchronize_rcu_expedited+0x2c2/0x770 kernel/rcu/tree_exp.h:596
2 locks held by syz-executor.1/19374:
#0: (sb_writers#3){.+.+}, at: [<ffffffff8186516b>] sb_start_write include/linux/fs.h:1551 [inline]
#0: (sb_writers#3){.+.+}, at: [<ffffffff8186516b>] do_sys_ftruncate.constprop.0+0x1fb/0x480 fs/open.c:200
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81864750>] inode_lock include/linux/fs.h:719 [inline]
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81864750>] do_truncate+0xf0/0x1a0 fs/open.c:61
2 locks held by syz-executor.4/19370:
#0: (sb_writers#3){.+.+}, at: [<ffffffff818df34d>] sb_start_write include/linux/fs.h:1551 [inline]
#0: (sb_writers#3){.+.+}, at: [<ffffffff818df34d>] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81bc5cc3>] inode_lock include/linux/fs.h:719 [inline]
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81bc5cc3>] ext4_ioctl+0x1bb3/0x3800 fs/ext4/ioctl.c:692
2 locks held by syz-executor.4/19387:
#0: (sb_writers#3){.+.+}, at: [<ffffffff8186516b>] sb_start_write include/linux/fs.h:1551 [inline]
#0: (sb_writers#3){.+.+}, at: [<ffffffff8186516b>] do_sys_ftruncate.constprop.0+0x1fb/0x480 fs/open.c:200
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81864750>] inode_lock include/linux/fs.h:719 [inline]
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81864750>] do_truncate+0xf0/0x1a0 fs/open.c:61
2 locks held by syz-executor.2/19428:
#0: (sb_writers#3){.+.+}, at: [<ffffffff818df34d>] sb_start_write include/linux/fs.h:1551 [inline]
#0: (sb_writers#3){.+.+}, at: [<ffffffff818df34d>] mnt_want_write_file+0xfd/0x3b0 fs/namespace.c:497
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81bc5cc3>] inode_lock include/linux/fs.h:719 [inline]
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81bc5cc3>] ext4_ioctl+0x1bb3/0x3800 fs/ext4/ioctl.c:692
2 locks held by syz-executor.2/19440:
#0: (sb_writers#3){.+.+}, at: [<ffffffff8186516b>] sb_start_write include/linux/fs.h:1551 [inline]
#0: (sb_writers#3){.+.+}, at: [<ffffffff8186516b>] do_sys_ftruncate.constprop.0+0x1fb/0x480 fs/open.c:200
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81864750>] inode_lock include/linux/fs.h:719 [inline]
#1: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff81864750>] do_truncate+0xf0/0x1a0 fs/open.c:61
1 lock held by syz-executor.2/19442:
#0: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff82eea578>] inode_lock include/linux/fs.h:719 [inline]
#0: (&sb->s_type->i_mutex_key#10){+.+.}, at: [<ffffffff82eea578>] process_measurement+0xac8/0xb20 security/integrity/ima/ima_main.c:206
=============================================
NMI backtrace for cpu 1
CPU: 1 PID: 1533 Comm: khungtaskd Not tainted 4.14.272-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:17 [inline]
dump_stack+0x1b2/0x281 lib/dump_stack.c:58
nmi_cpu_backtrace.cold+0x57/0x93 lib/nmi_backtrace.c:101
nmi_trigger_cpumask_backtrace+0x13a/0x180 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:140 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:195 [inline]
watchdog+0x5b9/0xb40 kernel/hung_task.c:274
kthread+0x30d/0x420 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 PID: 7926 Comm: kworker/u4:5 Not tainted 4.14.272-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Workqueue: bat_events batadv_purge_orig
task: ffff8880b4a6a200 task.stack: ffff88808d6b0000
RIP: 0010:__lock_acquire+0x63f/0x3f20 kernel/locking/lockdep.c:3468
RSP: 0018:ffff88808d6b7a78 EFLAGS: 00000097
RAX: 0000000000000003 RBX: 0000000000000005 RCX: 1ffff1101694d55f
RDX: 0000000000000004 RSI: ffff8880b4a6aad8 RDI: ffffffff8ba68a20
RBP: ffff8880b4a6aafa R08: 0000000000000001 R09: 00000000000405f4
R10: ffff8880b4a6aad8 R11: ffff8880b4a6a200 R12: ffff8880b4a6aaf0
R13: 0000000000000000 R14: 00000000000005f4 R15: ffffffff8becfd40
FS: 0000000000000000(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007faa873e0000 CR3: 00000000a2327000 CR4: 00000000003406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
lock_acquire+0x170/0x3f0 kernel/locking/lockdep.c:3998
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:135 [inline]
_raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:176
spin_lock_bh include/linux/spinlock.h:322 [inline]
_batadv_purge_orig+0x117/0xef0 net/batman-adv/originator.c:1309
batadv_purge_orig+0x17/0x60 net/batman-adv/originator.c:1338
process_one_work+0x793/0x14a0 kernel/workqueue.c:2117
worker_thread+0x5cc/0xff0 kernel/workqueue.c:2251
kthread+0x30d/0x420 kernel/kthread.c:232
ret_from_fork+0x24/0x30 arch/x86/entry/entry_64.S:404
Code: 00 fc ff df 4c 89 fa 48 c1 ea 03 0f b6 14 02 4c 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 8e 08 00 00 44 8b 2d 81 7a ab 0a <44> 89 f0 45 85 ed 0f 85 9f 02 00 00 41 81 fe ff 1f 00 00 0f 87
----------------
Code disassembly (best guess), 3 bytes skipped:
0: df 4c 89 fa fisttps -0x6(%rcx,%rcx,4)
4: 48 c1 ea 03 shr $0x3,%rdx
8: 0f b6 14 02 movzbl (%rdx,%rax,1),%edx
c: 4c 89 f8 mov %r15,%rax
f: 83 e0 07 and $0x7,%eax
12: 83 c0 03 add $0x3,%eax
15: 38 d0 cmp %dl,%al
17: 7c 08 jl 0x21
19: 84 d2 test %dl,%dl
1b: 0f 85 8e 08 00 00 jne 0x8af
21: 44 8b 2d 81 7a ab 0a mov 0xaab7a81(%rip),%r13d # 0xaab7aa9
* 28: 44 89 f0 mov %r14d,%eax <-- trapping instruction
2b: 45 85 ed test %r13d,%r13d
2e: 0f 85 9f 02 00 00 jne 0x2d3
34: 41 81 fe ff 1f 00 00 cmp $0x1fff,%r14d
3b: 0f .byte 0xf
3c: 87 .byte 0x87