INFO: task kworker/1:2:25805 blocked for more than 143 seconds.
Not tainted 6.0.0-rc7-syzkaller-01880-gbc37b24ee05e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:kworker/1:2 state:D stack:28296 pid:25805 ppid: 2 flags:0x00004000
Workqueue: ipv6_addrconf addrconf_verify_work
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6629
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4624
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
INFO: task syz-executor.2:29789 blocked for more than 143 seconds.
Not tainted 6.0.0-rc7-syzkaller-01880-gbc37b24ee05e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.2 state:D stack:28424 pid:29789 ppid: 3629 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6629
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540
genl_rcv+0x24/0x40 net/netlink/genetlink.c:836
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
____sys_sendmsg+0x6eb/0x810 net/socket.c:2482
___sys_sendmsg+0x110/0x1b0 net/socket.c:2536
__sys_sendmsg+0xf3/0x1c0 net/socket.c:2565
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f85dea8a5a9
RSP: 002b:00007f85dfbb1168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f85debac050 RCX: 00007f85dea8a5a9
RDX: 0000000000000000 RSI: 00000000200003c0 RDI: 0000000000000004
RBP: 00007f85deae5580 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe9b46c68f R14: 00007f85dfbb1300 R15: 0000000000022000
INFO: task syz-executor.1:29791 blocked for more than 143 seconds.
Not tainted 6.0.0-rc7-syzkaller-01880-gbc37b24ee05e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.1 state:D stack:28256 pid:29791 ppid: 3632 flags:0x00004004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6629
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540
genl_rcv+0x24/0x40 net/netlink/genetlink.c:836
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
__sys_sendto+0x236/0x340 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f34c143c4fc
RSP: 002b:00007f34c2672000 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f34c26720f0 RCX: 00007f34c143c4fc
RDX: 0000000000000028 RSI: 00007f34c2672140 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007f34c2672054 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f34c26720a8
R13: 00007f34c2672140 R14: 0000000000000005 R15: 0000000000000000
INFO: task syz-executor.5:29795 blocked for more than 144 seconds.
Not tainted 6.0.0-rc7-syzkaller-01880-gbc37b24ee05e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.5 state:D stack:28040 pid:29795 ppid: 3631 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6629
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540
genl_rcv+0x24/0x40 net/netlink/genetlink.c:836
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
__sys_sendto+0x236/0x340 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f825083c4fc
RSP: 002b:00007f82519c9000 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f82519c90f0 RCX: 00007f825083c4fc
RDX: 0000000000000028 RSI: 00007f82519c9140 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007f82519c9054 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f82519c90a8
R13: 00007f82519c9140 R14: 0000000000000005 R15: 0000000000000000
INFO: task syz-executor.3:29800 blocked for more than 144 seconds.
Not tainted 6.0.0-rc7-syzkaller-01880-gbc37b24ee05e #0
"echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
task:syz-executor.3 state:D stack:27584 pid:29800 ppid: 3633 flags:0x00000004
Call Trace:
context_switch kernel/sched/core.c:5182 [inline]
__schedule+0xadf/0x52b0 kernel/sched/core.c:6494
schedule+0xda/0x1b0 kernel/sched/core.c:6570
schedule_preempt_disabled+0xf/0x20 kernel/sched/core.c:6629
__mutex_lock_common kernel/locking/mutex.c:679 [inline]
__mutex_lock+0xa44/0x1350 kernel/locking/mutex.c:747
genl_lock net/netlink/genetlink.c:33 [inline]
genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2540
genl_rcv+0x24/0x40 net/netlink/genetlink.c:836
netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
sock_sendmsg_nosec net/socket.c:714 [inline]
sock_sendmsg+0xcf/0x120 net/socket.c:734
__sys_sendto+0x236/0x340 net/socket.c:2117
__do_sys_sendto net/socket.c:2129 [inline]
__se_sys_sendto net/socket.c:2125 [inline]
__x64_sys_sendto+0xdd/0x1b0 net/socket.c:2125
do_syscall_x64 arch/x86/entry/common.c:50 [inline]
do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80
entry_SYSCALL_64_after_hwframe+0x63/0xcd
RIP: 0033:0x7f83e2a3c4fc
RSP: 002b:00007f83e3c3d000 EFLAGS: 00000293 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 00007f83e3c3d0f0 RCX: 00007f83e2a3c4fc
RDX: 0000000000000028 RSI: 00007f83e3c3d140 RDI: 0000000000000005
RBP: 0000000000000000 R08: 00007f83e3c3d054 R09: 000000000000000c
R10: 0000000000000000 R11: 0000000000000293 R12: 00007f83e3c3d0a8
R13: 00007f83e3c3d140 R14: 0000000000000005 R15: 0000000000000000
Showing all locks held in the system:
3 locks held by kworker/0:0/7:
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc900000c7da8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4624
1 lock held by rcu_tasks_kthre/13:
#0: ffffffff8bf888b0 (rcu_tasks.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by rcu_tasks_trace/14:
#0: ffffffff8bf885b0 (rcu_tasks_trace.tasks_gp_mutex){+.+.}-{3:3}, at: rcu_tasks_one_gp+0x26/0xc70 kernel/rcu/tasks.h:507
1 lock held by khungtaskd/29:
#0: ffffffff8bf89400 (rcu_read_lock){....}-{1:2}, at: debug_show_all_locks+0x53/0x260 kernel/locking/lockdep.c:6492
2 locks held by getty/3288:
#0: ffff888145ec6098 (&tty->ldisc_sem){++++}-{0:0}, at: tty_ldisc_ref_wait+0x22/0x80 drivers/tty/tty_ldisc.c:244
#1: ffffc900031262f0 (&ldata->atomic_read_lock){+.+.}-{3:3}, at: n_tty_read+0xef0/0x13e0 drivers/tty/n_tty.c:2177
3 locks held by kworker/1:2/25805:
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic64_set arch/x86/include/asm/atomic64_64.h:34 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: arch_atomic_long_set include/linux/atomic/atomic-long.h:41 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: atomic_long_set include/linux/atomic/atomic-instrumented.h:1280 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_data kernel/workqueue.c:636 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: set_work_pool_and_clear_pending kernel/workqueue.c:663 [inline]
#0: ffff8880262db138 ((wq_completion)ipv6_addrconf){+.+.}-{0:0}, at: process_one_work+0x87a/0x1610 kernel/workqueue.c:2260
#1: ffffc9001618fda8 ((work_completion)(&(&net->ipv6.addr_chk_work)->work)){+.+.}-{0:0}, at: process_one_work+0x8ae/0x1610 kernel/workqueue.c:2264
#2: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: addrconf_verify_work+0xe/0x20 net/ipv6/addrconf.c:4624
4 locks held by syz-executor.2/29768:
#0: ffffffff8d84feb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:835
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
#2: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: nl802154_pre_doit+0x632/0xd50 net/ieee802154/nl802154.c:2169
#3: ffffffff8bf93f80 (rcu_state.barrier_mutex){+.+.}-{3:3}, at: rcu_barrier+0x44/0x720 kernel/rcu/tree.c:3788
2 locks held by syz-executor.2/29789:
#0: ffffffff8d84feb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:835
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
2 locks held by syz-executor.1/29791:
#0: ffffffff8d84feb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:835
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
2 locks held by syz-executor.5/29795:
#0: ffffffff8d84feb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:835
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
2 locks held by syz-executor.3/29800:
#0: ffffffff8d84feb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:835
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
2 locks held by syz-executor.0/29814:
#0: ffffffff8d84feb0 (cb_lock){++++}-{3:3}, at: genl_rcv+0x15/0x40 net/netlink/genetlink.c:835
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_lock net/netlink/genetlink.c:33 [inline]
#1: ffffffff8d84ff68 (genl_mutex){+.+.}-{3:3}, at: genl_rcv_msg+0x509/0x780 net/netlink/genetlink.c:823
1 lock held by syz-executor.4/29823:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x279/0xed0 net/core/dev_ioctl.c:612
1 lock held by syz-executor.4/29824:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: dev_ioctl+0x279/0xed0 net/core/dev_ioctl.c:612
1 lock held by syz-executor.2/29830:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.5/29832:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.3/29833:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.1/29847:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.0/29851:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.4/29852:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.5/29859:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.3/29865:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.2/29870:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
1 lock held by syz-executor.1/29873:
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d7b4968 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xca0 net/core/rtnetlink.c:6088
=============================================
NMI backtrace for cpu 0
CPU: 0 PID: 29 Comm: khungtaskd Not tainted 6.0.0-rc7-syzkaller-01880-gbc37b24ee05e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x46/0x14f lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x206/0x250 lib/nmi_backtrace.c:62
trigger_all_cpu_backtrace include/linux/nmi.h:148 [inline]
check_hung_uninterruptible_tasks kernel/hung_task.c:212 [inline]
watchdog+0xc18/0xf50 kernel/hung_task.c:369
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 PID: 42 Comm: kworker/u4:2 Not tainted 6.0.0-rc7-syzkaller-01880-gbc37b24ee05e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022
Workqueue: bat_events batadv_nc_worker
RIP: 0010:rcu_preempt_read_enter kernel/rcu/tree_plugin.h:377 [inline]
RIP: 0010:__rcu_read_lock+0x23/0xf0 kernel/rcu/tree_plugin.h:400
Code: 00 00 00 0f 1f 40 00 48 b8 00 00 00 00 00 fc ff df 55 53 65 48 8b 1c 25 80 6f 02 00 48 8d bb 3c 04 00 00 48 89 fa 48 c1 ea 03 <0f> b6 14 02 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 9e
RSP: 0018:ffffc90000b37c00 EFLAGS: 00000a03
RAX: dffffc0000000000 RBX: ffff888011a39d80 RCX: ffff88805f2d9b80
RDX: 1ffff11002347437 RSI: ffffffff891c0ba3 RDI: ffff888011a3a1bc
RBP: 0000000000000000 R08: 0000000000000004 R09: 0000000000000080
R10: 0000000000000005 R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888021b05790 R14: ffff888021b04c80 R15: 0000000000000005
FS: 0000000000000000(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7d1a278e70 CR3: 0000000026f3c000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_read_lock include/linux/rcupdate.h:704 [inline]
batadv_nc_process_nc_paths.part.0+0xc7/0x3c0 net/batman-adv/network-coding.c:687
batadv_nc_process_nc_paths net/batman-adv/network-coding.c:679 [inline]
batadv_nc_worker+0xc46/0xfa0 net/batman-adv/network-coding.c:728
process_one_work+0x991/0x1610 kernel/workqueue.c:2289
worker_thread+0x665/0x1080 kernel/workqueue.c:2436
kthread+0x2e4/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:306