INFO: task udevd:3546 blocked for more than 143 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:udevd state:D stack:25168 pid: 3546 ppid: 1 flags:0x00004002
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
device_lock include/linux/device.h:760 [inline]
uevent_show+0x17e/0x340 drivers/base/core.c:2408
dev_attr_show+0x50/0xb0 drivers/base/core.c:2110
sysfs_kf_seq_show+0x313/0x4e0 fs/sysfs/file.c:61
seq_read_iter+0x43a/0xd10 fs/seq_file.c:230
call_read_iter include/linux/fs.h:2168 [inline]
new_sync_read fs/read_write.c:404 [inline]
vfs_read+0xa93/0xe10 fs/read_write.c:485
ksys_read+0x1a2/0x2c0 fs/read_write.c:623
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7effc0daeb6a
RSP: 002b:00007ffddd5e7e38 EFLAGS: 00000246 ORIG_RAX: 0000000000000000
RAX: ffffffffffffffda RBX: 000055a68400b0a0 RCX: 00007effc0daeb6a
RDX: 0000000000001000 RSI: 000055a684004a30 RDI: 000000000000000c
RBP: 000055a68400b0a0 R08: 000000000000000c R09: 0000000000020000
R10: 000000000000010f R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000003fff R14: 00007ffddd5e8318 R15: 000000000000000a
</TASK>
INFO: task kworker/u4:4:4233 blocked for more than 143 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/u4:4 state:D stack:23256 pid: 4233 ppid: 2 flags:0x00004000
Workqueue: nfc2_nci_cmd_wq nci_cmd_work
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
virtual_nci_send+0x1c/0xd0 drivers/nfc/virtual_ncidev.c:54
nci_cmd_work+0xa4/0x2a0 net/nfc/nci/core.c:1593
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
</TASK>
INFO: task syz.2.96:4735 blocked for more than 143 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.96 state:D stack:27064 pid: 4735 ppid: 4307 flags:0x00004204
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
misc_open+0x58/0x380 drivers/char/misc.c:107
chrdev_open+0x54a/0x630 fs/char_dev.c:414
do_dentry_open+0x807/0xfb0 fs/open.c:826
do_open fs/namei.c:3608 [inline]
path_openat+0x2705/0x2f20 fs/namei.c:3742
do_filp_open+0x21c/0x460 fs/namei.c:3769
do_sys_openat2+0x13b/0x4f0 fs/open.c:1253
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1280
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ffaa92d7d29
RSP: 002b:00007ffaa8550038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007ffaa94c7fa0 RCX: 00007ffaa92d7d29
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007ffaa9353aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffaa94c7fa0 R15: 00007fff9c5dc4e8
</TASK>
INFO: task syz.2.96:4745 blocked for more than 144 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.96 state:D stack:25824 pid: 4745 ppid: 4307 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
virtual_nci_close+0x13/0x40 drivers/nfc/virtual_ncidev.c:44
nci_open_device net/nfc/nci/core.c:544 [inline]
nci_dev_up+0x954/0xd40 net/nfc/nci/core.c:631
nfc_dev_up+0x185/0x330 net/nfc/core.c:118
nfc_genl_dev_up+0x80/0xd0 net/nfc/netlink.c:770
genl_family_rcv_msg_doit net/netlink/genetlink.c:731 [inline]
genl_family_rcv_msg net/netlink/genetlink.c:775 [inline]
genl_rcv_msg+0xfbd/0x14a0 net/netlink/genetlink.c:792
netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2489
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1337
netlink_sendmsg+0xa30/0xd60 net/netlink/af_netlink.c:1905
sock_sendmsg_nosec net/socket.c:704 [inline]
__sock_sendmsg net/socket.c:716 [inline]
____sys_sendmsg+0x59e/0x8f0 net/socket.c:2436
___sys_sendmsg+0x252/0x2e0 net/socket.c:2490
__sys_sendmsg net/socket.c:2519 [inline]
__do_sys_sendmsg net/socket.c:2528 [inline]
__se_sys_sendmsg+0x19a/0x260 net/socket.c:2526
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ffaa92d7d29
RSP: 002b:00007ffaa852f038 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ffaa94c8080 RCX: 00007ffaa92d7d29
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000007
RBP: 00007ffaa9353aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007ffaa94c8080 R15: 00007fff9c5dc4e8
</TASK>
INFO: task syz.2.96:4749 blocked for more than 144 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.2.96 state:D stack:27224 pid: 4749 ppid: 4307 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2489
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1337
netlink_sendmsg+0xa30/0xd60 net/netlink/af_netlink.c:1905
sock_sendmsg_nosec net/socket.c:704 [inline]
__sock_sendmsg net/socket.c:716 [inline]
__sys_sendto+0x564/0x720 net/socket.c:2063
__do_sys_sendto net/socket.c:2075 [inline]
__se_sys_sendto net/socket.c:2071 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2071
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7ffaa92d9bbc
RSP: 002b:00007ffaa850cec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007ffaa850cfc0 RCX: 00007ffaa92d9bbc
RDX: 0000000000000024 RSI: 00007ffaa850d010 RDI: 0000000000000007
RBP: 0000000000000000 R08: 00007ffaa850cf14 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000007
R13: 00007ffaa850cf68 R14: 00007ffaa850d010 R15: 0000000000000000
</TASK>
INFO: task syz.3.100:4737 blocked for more than 144 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.100 state:D stack:27032 pid: 4737 ppid: 4313 flags:0x00004204
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
misc_open+0x58/0x380 drivers/char/misc.c:107
chrdev_open+0x54a/0x630 fs/char_dev.c:414
do_dentry_open+0x807/0xfb0 fs/open.c:826
do_open fs/namei.c:3608 [inline]
path_openat+0x2705/0x2f20 fs/namei.c:3742
do_filp_open+0x21c/0x460 fs/namei.c:3769
do_sys_openat2+0x13b/0x4f0 fs/open.c:1253
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1280
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f118c64dd29
RSP: 002b:00007f118b8c6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f118c83dfa0 RCX: 00007f118c64dd29
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f118c6c9aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f118c83dfa0 R15: 00007ffe1c679a18
</TASK>
INFO: task syz.3.100:4748 blocked for more than 145 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.100 state:D stack:27168 pid: 4748 ppid: 4313 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2489
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1337
netlink_sendmsg+0xa30/0xd60 net/netlink/af_netlink.c:1905
sock_sendmsg_nosec net/socket.c:704 [inline]
__sock_sendmsg net/socket.c:716 [inline]
__sys_sendto+0x564/0x720 net/socket.c:2063
__do_sys_sendto net/socket.c:2075 [inline]
__se_sys_sendto net/socket.c:2071 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2071
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f118c64fbbc
RSP: 002b:00007f118b8a3ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f118b8a3fc0 RCX: 00007f118c64fbbc
RDX: 000000000000001c RSI: 00007f118b8a4010 RDI: 0000000000000008
RBP: 0000000000000000 R08: 00007f118b8a3f14 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000008
R13: 00007f118b8a3f68 R14: 00007f118b8a4010 R15: 0000000000000000
</TASK>
INFO: task syz.3.100:4752 blocked for more than 145 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.3.100 state:D stack:27224 pid: 4752 ppid: 4313 flags:0x00004004
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
netlink_rcv_skb+0x1cf/0x410 net/netlink/af_netlink.c:2489
genl_rcv+0x24/0x40 net/netlink/genetlink.c:803
netlink_unicast_kernel net/netlink/af_netlink.c:1311 [inline]
netlink_unicast+0x7b6/0x980 net/netlink/af_netlink.c:1337
netlink_sendmsg+0xa30/0xd60 net/netlink/af_netlink.c:1905
sock_sendmsg_nosec net/socket.c:704 [inline]
__sock_sendmsg net/socket.c:716 [inline]
__sys_sendto+0x564/0x720 net/socket.c:2063
__do_sys_sendto net/socket.c:2075 [inline]
__se_sys_sendto net/socket.c:2071 [inline]
__x64_sys_sendto+0xda/0xf0 net/socket.c:2071
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f118c64fbbc
RSP: 002b:00007f118b882ec0 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f118b882fc0 RCX: 00007f118c64fbbc
RDX: 0000000000000024 RSI: 00007f118b883010 RDI: 0000000000000007
RBP: 0000000000000000 R08: 00007f118b882f14 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000007
R13: 00007f118b882f68 R14: 00007f118b883010 R15: 0000000000000000
</TASK>
INFO: task syz.4.97:4734 blocked for more than 145 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.4.97 state:D stack:24096 pid: 4734 ppid: 4314 flags:0x00004204
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
device_lock include/linux/device.h:760 [inline]
nfc_register_device+0x98/0x310 net/nfc/core.c:1128
nci_register_device+0x7be/0x900 net/nfc/nci/core.c:1269
virtual_ncidev_open+0x55/0xc0 drivers/nfc/virtual_ncidev.c:150
misc_open+0x304/0x380 drivers/char/misc.c:141
chrdev_open+0x54a/0x630 fs/char_dev.c:414
do_dentry_open+0x807/0xfb0 fs/open.c:826
do_open fs/namei.c:3608 [inline]
path_openat+0x2705/0x2f20 fs/namei.c:3742
do_filp_open+0x21c/0x460 fs/namei.c:3769
do_sys_openat2+0x13b/0x4f0 fs/open.c:1253
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1280
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7fc500ea8d29
RSP: 002b:00007fc500121038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fc501098fa0 RCX: 00007fc500ea8d29
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007fc500f24aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fc501098fa0 R15: 00007ffc9e82f238
</TASK>
INFO: task syz.1.98:4740 blocked for more than 146 seconds.
Not tainted 5.15.175-syzkaller #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz.1.98 state:D stack:27064 pid: 4740 ppid: 4306 flags:0x00004204
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5027 [inline]
__schedule+0x12c4/0x45b0 kernel/sched/core.c:6373
schedule+0x11b/0x1f0 kernel/sched/core.c:6456
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6515
__mutex_lock_common+0xe34/0x25a0 kernel/locking/mutex.c:669
__mutex_lock kernel/locking/mutex.c:729 [inline]
mutex_lock_nested+0x17/0x20 kernel/locking/mutex.c:743
misc_open+0x58/0x380 drivers/char/misc.c:107
chrdev_open+0x54a/0x630 fs/char_dev.c:414
do_dentry_open+0x807/0xfb0 fs/open.c:826
do_open fs/namei.c:3608 [inline]
path_openat+0x2705/0x2f20 fs/namei.c:3742
do_filp_open+0x21c/0x460 fs/namei.c:3769
do_sys_openat2+0x13b/0x4f0 fs/open.c:1253
do_sys_open fs/open.c:1269 [inline]
__do_sys_openat fs/open.c:1285 [inline]
__se_sys_openat fs/open.c:1280 [inline]
__x64_sys_openat+0x243/0x290 fs/open.c:1280
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f6522501d29
RSP: 002b:00007f652177a038 EFLAGS: 00000246 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f65226f1fa0 RCX: 00007f6522501d29
RDX: 0000000000000002 RSI: 0000000020000080 RDI: ffffffffffffff9c
RBP: 00007f652257daa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f65226f1fa0 R15: 00007fffef0272b8
</TASK>
Showing all locks held in the system:
1 lock held by khungtaskd/27:
#0: ffffffff8cb1fd20 (rcu_read_lock){....}-{1:2}, at: rcu_lock_acquire+0x0/0x30
4 locks held by udevd/3546:
#0: ffff88802aa0b2f0 (&p->lock){+.+.}-{3:3}, at: seq_read_iter+0xae/0xd10 fs/seq_file.c:182
#1: ffff88805aaea088 (&of->mutex){+.+.}-{3:3}, at: kernfs_seq_start+0x50/0x3b0 fs/kernfs/file.c:112
#2: ffff88805c0a1ae8 (kn->active#32){++++}-{0:0}, at: kernfs_seq_start+0x6f/0x3b0 fs/kernfs/file.c:113
#3: ffff88805efa5190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#3: ffff88805efa5190 (&dev->mutex){....}-{3:3}, at: uevent_show+0x17e/0x340 drivers/base/core.c:2408
2 locks held by getty/3931:
#0: ffff88802c9a5098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x21/0x70 drivers/tty/tty_ldisc.c:252
#1: ffffc900025ae2e8 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0x6af/0x1db0 drivers/tty/n_tty.c:2158
3 locks held by kworker/u4:4/4233:
#0: ffff88802423f938 ((wq_completion)nfc2_nci_cmd_wq){+.+.}-{0:0}, at: process_one_work+0x78a/0x10c0 kernel/workqueue.c:2283
#1: ffffc9000344fd20 ((work_completion)(&ndev->cmd_work)){+.+.}-{0:0}, at: process_one_work+0x7d0/0x10c0 kernel/workqueue.c:2285
#2: ffffffff8d359328 (nci_mutex){+.+.}-{3:3}, at: virtual_nci_send+0x1c/0xd0 drivers/nfc/virtual_ncidev.c:54
1 lock held by syz.2.96/4735:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
5 locks held by syz.2.96/4745:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
#2: ffff88805efa5190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88805efa5190 (&dev->mutex){....}-{3:3}, at: nfc_dev_up+0x3b/0x330 net/nfc/core.c:95
#3: ffff88805aa73350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_open_device net/nfc/nci/core.c:477 [inline]
#3: ffff88805aa73350 (&ndev->req_lock){+.+.}-{3:3}, at: nci_dev_up+0xa0/0xd40 net/nfc/nci/core.c:631
#4: ffffffff8d359328 (nci_mutex){+.+.}-{3:3}, at: virtual_nci_close+0x13/0x40 drivers/nfc/virtual_ncidev.c:44
2 locks held by syz.2.96/4749:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
1 lock held by syz.3.100/4737:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
2 locks held by syz.3.100/4748:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
2 locks held by syz.3.100/4752:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
3 locks held by syz.4.97/4734:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
#1: ffffffff8d359328 (nci_mutex){+.+.}-{3:3}, at: virtual_ncidev_open+0x15/0xc0 drivers/nfc/virtual_ncidev.c:137
#2: ffff88805efa5190 (&dev->mutex){....}-{3:3}, at: device_lock include/linux/device.h:760 [inline]
#2: ffff88805efa5190 (&dev->mutex){....}-{3:3}, at: nfc_register_device+0x98/0x310 net/nfc/core.c:1128
1 lock held by syz.1.98/4740:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
2 locks held by syz.1.98/4747:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
2 locks held by syz.1.98/4751:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
1 lock held by syz.0.99/4741:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
2 locks held by syz.0.99/4746:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
2 locks held by syz.0.99/4750:
#0: ffffffff8dc9f0f0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:802
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8dc9efa8 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x124/0x14a0 net/netlink/genetlink.c:790
1 lock held by syz-executor/4759:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4763:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4764:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4765:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4766:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4769:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4772:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4774:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4775:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4776:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4784:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4789:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4790:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4791:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
1 lock held by syz-executor/4792:
#0: ffffffff8d212548 (misc_mtx){+.+.}-{3:3}, at: misc_open+0x58/0x380 drivers/char/misc.c:107
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 27 Comm: khungtaskd Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
<TASK>
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0x1e3/0x2d0 lib/dump_stack.c:106
nmi_cpu_backtrace+0x46a/0x4a0 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x181/0x2a0 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:210 [inline]
watchdog+0xe72/0xeb0 kernel/hung_task.c:295
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
</TASK>
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 4360 Comm: kworker/u4:6 Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: bat_events batadv_iv_send_outstanding_bat_ogm_packet
RIP: 0010:rcu_lock_acquire+0x25/0x30 include/linux/rcupdate.h:312
Code: 00 00 00 66 90 e8 cb b5 69 f7 e8 c6 b5 69 f7 48 c7 c7 20 fd b1 8c 31 f6 31 d2 b9 02 00 00 00 45 31 c0 45 31 c9 68 15 cf 16 8a <e8> c6 fd 4b f7 48 83 c4 08 c3 90 e8 9b b5 69 f7 e8 96 b5 69 f7 48
RSP: 0018:ffffc90003dffa50 EFLAGS: 00000246
RAX: ffffffff8a16cf1a RBX: 0000000000000270 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8cb1fd20
RBP: ffffc90003dffb98 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88805d083000
R13: ffff88805d5bc900 R14: ffff8880236b9380 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffde291fec8 CR3: 000000002a816000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
<NMI>
</NMI>
<TASK>
rcu_read_lock include/linux/rcupdate.h:739 [inline]
batadv_iv_ogm_slide_own_bcast_window net/batman-adv/bat_iv_ogm.c:755 [inline]
batadv_iv_ogm_schedule_buff net/batman-adv/bat_iv_ogm.c:826 [inline]
batadv_iv_ogm_schedule+0x429/0x1000 net/batman-adv/bat_iv_ogm.c:869
batadv_iv_send_outstanding_bat_ogm_packet+0x6fa/0x800 net/batman-adv/bat_iv_ogm.c:1713
process_one_work+0x8a1/0x10c0 kernel/workqueue.c:2310
worker_thread+0xaca/0x1280 kernel/workqueue.c:2457
kthread+0x3f6/0x4f0 kernel/kthread.c:334
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:287
</TASK>