rcu: INFO: rcu_preempt self-detected stall on CPU
rcu: 1-...!: (10500 ticks this GP) idle=b3d/1/0x4000000000000000 softirq=94793/94793 fqs=0
(t=10500 jiffies g=141849 q=412 ncpus=2)
rcu: rcu_preempt kthread timer wakeup didn't happen for 10499 jiffies! g141849 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402
rcu: Possible timer handling issue on cpu=1 timer-softirq=65222
rcu: rcu_preempt kthread starved for 10500 jiffies! g141849 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x402 ->cpu=1
rcu: Unless rcu_preempt kthread gets sufficient CPU time, OOM is now expected behavior.
rcu: RCU grace-period kthread stack dump:
task:rcu_preempt state:I stack:28664 pid: 17 ppid: 2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5148 [inline]
__schedule+0xa06/0x4b40 kernel/sched/core.c:6460
schedule+0xd2/0x1f0 kernel/sched/core.c:6532
schedule_timeout+0x14a/0x2a0 kernel/time/timer.c:1935
rcu_gp_fqs_loop+0x1c0/0x890 kernel/rcu/tree.c:2082
rcu_gp_kthread+0x234/0x350 kernel/rcu/tree.c:2271
kthread+0x2e9/0x3a0 kernel/kthread.c:376
ret_from_fork+0x1f/0x30 arch/x86/entry/entry_64.S:302
rcu: Stack dump where RCU GP kthread last ran:
NMI backtrace for cpu 1
CPU: 1 PID: 5349 Comm: syz-executor.3 Not tainted 5.19.0-rc1-next-20220610-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:514
print_cpu_stall kernel/rcu/tree_stall.h:659 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:746 [inline]
rcu_pending kernel/rcu/tree.c:4071 [inline]
rcu_sched_clock_irq.cold+0x3ff/0x783 kernel/rcu/tree.c:2759
update_process_times+0x11a/0x1a0 kernel/time/timer.c:1839
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1481
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x1ef/0x570 kernel/locking/lockdep.c:5633
Code: b7 a3 7e 83 f8 01 0f 85 e8 02 00 00 9c 58 f6 c4 02 0f 85 fb 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000469f278 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920008d3e51 RCX: ffffffff815e6c4e
RDX: 1ffff11004be1149 RSI: 0000000000000402 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff906939e7
R10: fffffbfff20d273c R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88802cb3b098 R15: 0000000000000000
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:365 [inline]
batadv_tt_local_purge+0x114/0x370 net/batman-adv/translation-table.c:1355
batadv_tt_local_resize_to_mtu+0x8e/0x130 net/batman-adv/translation-table.c:3957
batadv_hardif_activate_interface.part.0.cold+0x14c/0x1ba net/batman-adv/hard-interface.c:664
batadv_hardif_activate_interface net/batman-adv/hard-interface.c:755 [inline]
batadv_hardif_enable_interface+0xaba/0xac0 net/batman-adv/hard-interface.c:747
batadv_softif_slave_add+0x64/0x130 net/batman-adv/soft-interface.c:839
do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2577
rtnl_newlink_create net/core/rtnetlink.c:3380 [inline]
__rtnl_newlink+0x13ac/0x17e0 net/core/rtnetlink.c:3580
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3593
rtnetlink_rcv_msg+0x43a/0xc90 net/core/rtnetlink.c:6089
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
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:2492
___sys_sendmsg+0xf3/0x170 net/socket.c:2546
__sys_sendmsg net/socket.c:2575 [inline]
__do_sys_sendmsg net/socket.c:2584 [inline]
__se_sys_sendmsg net/socket.c:2582 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
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+0x46/0xb0
RIP: 0033:0x7effeb289109
================================
WARNING: inconsistent lock state
5.19.0-rc1-next-20220610-syzkaller #0 Not tainted
--------------------------------
inconsistent {HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage.
syz-executor.3/5349 [HC1[1]:SC0[4]:HE0:SE0] takes:
ffffffff8beba998 (vmap_area_lock){?.+.}-{2:2}, at: spin_lock include/linux/spinlock.h:360 [inline]
ffffffff8beba998 (vmap_area_lock){?.+.}-{2:2}, at: find_vmap_area mm/vmalloc.c:1836 [inline]
ffffffff8beba998 (vmap_area_lock){?.+.}-{2:2}, at: find_vm_area+0x1c/0x190 mm/vmalloc.c:2555
{HARDIRQ-ON-W} state was registered at:
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:360 [inline]
alloc_vmap_area+0xa0b/0x1d30 mm/vmalloc.c:1617
__get_vm_area_node+0x142/0x3f0 mm/vmalloc.c:2483
get_vm_area_caller+0x43/0x50 mm/vmalloc.c:2536
__ioremap_caller.constprop.0+0x292/0x600 arch/x86/mm/ioremap.c:280
acpi_os_ioremap include/acpi/acpi_io.h:13 [inline]
acpi_map drivers/acpi/osl.c:296 [inline]
acpi_os_map_iomem+0x463/0x550 drivers/acpi/osl.c:355
acpi_tb_acquire_table+0xd8/0x209 drivers/acpi/acpica/tbdata.c:142
acpi_tb_validate_table drivers/acpi/acpica/tbdata.c:317 [inline]
acpi_tb_validate_table+0x50/0x8c drivers/acpi/acpica/tbdata.c:308
acpi_tb_verify_temp_table+0x84/0x674 drivers/acpi/acpica/tbdata.c:504
acpi_reallocate_root_table+0x374/0x3e0 drivers/acpi/acpica/tbxface.c:180
acpi_early_init+0x13a/0x438 drivers/acpi/bus.c:1200
start_kernel+0x3d4/0x494 init/main.c:1103
secondary_startup_64_no_verify+0xce/0xdb
irq event stamp: 370626657
hardirqs last enabled at (370626656): [] __local_bh_enable_ip+0xa0/0x120 kernel/softirq.c:401
hardirqs last disabled at (370626657): [] sysvec_apic_timer_interrupt+0xb/0xc0 arch/x86/kernel/apic/apic.c:1106
softirqs last enabled at (1124): [] spin_unlock_bh include/linux/spinlock.h:405 [inline]
softirqs last enabled at (1124): [] clusterip_netdev_event+0x419/0x650 net/ipv4/netfilter/ipt_CLUSTERIP.c:233
softirqs last disabled at (1140): [] spin_lock_bh include/linux/spinlock.h:365 [inline]
softirqs last disabled at (1140): [] batadv_tt_local_resize_to_mtu+0x7d/0x130 net/batman-adv/translation-table.c:3950
other info that might help us debug this:
Possible unsafe locking scenario:
CPU0
----
lock(vmap_area_lock);
lock(vmap_area_lock);
*** DEADLOCK ***
3 locks held by syz-executor.3/5349:
#0: ffffffff8d5a0ae8 (rtnl_mutex){+.+.}-{3:3}, at: rtnl_lock net/core/rtnetlink.c:74 [inline]
#0: ffffffff8d5a0ae8 (rtnl_mutex){+.+.}-{3:3}, at: rtnetlink_rcv_msg+0x3e5/0xc90 net/core/rtnetlink.c:6086
#1: ffff88802cae9340 (&bat_priv->tt.commit_lock){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:365 [inline]
#1: ffff88802cae9340 (&bat_priv->tt.commit_lock){+...}-{2:2}, at: batadv_tt_local_resize_to_mtu+0x7d/0x130 net/batman-adv/translation-table.c:3950
#2: ffff88802cb3b098 (key#15){+...}-{2:2}, at: spin_lock_bh include/linux/spinlock.h:365 [inline]
#2: ffff88802cb3b098 (key#15){+...}-{2:2}, at: batadv_tt_local_purge+0x114/0x370 net/batman-adv/translation-table.c:1355
stack backtrace:
CPU: 1 PID: 5349 Comm: syz-executor.3 Not tainted 5.19.0-rc1-next-20220610-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
print_usage_bug kernel/locking/lockdep.c:3961 [inline]
valid_state kernel/locking/lockdep.c:3973 [inline]
mark_lock_irq kernel/locking/lockdep.c:4176 [inline]
mark_lock.part.0.cold+0x18/0xd8 kernel/locking/lockdep.c:4632
mark_lock kernel/locking/lockdep.c:4596 [inline]
mark_usage kernel/locking/lockdep.c:4524 [inline]
__lock_acquire+0x14ad/0x5660 kernel/locking/lockdep.c:5007
lock_acquire kernel/locking/lockdep.c:5665 [inline]
lock_acquire+0x1ab/0x570 kernel/locking/lockdep.c:5630
__raw_spin_lock include/linux/spinlock_api_smp.h:133 [inline]
_raw_spin_lock+0x2a/0x40 kernel/locking/spinlock.c:154
spin_lock include/linux/spinlock.h:360 [inline]
find_vmap_area mm/vmalloc.c:1836 [inline]
find_vm_area+0x1c/0x190 mm/vmalloc.c:2555
check_heap_object mm/usercopy.c:176 [inline]
__check_object_size mm/usercopy.c:252 [inline]
__check_object_size+0x1fb/0x7a0 mm/usercopy.c:214
check_object_size include/linux/thread_info.h:199 [inline]
__copy_from_user_inatomic include/linux/uaccess.h:62 [inline]
copy_from_user_nmi arch/x86/lib/usercopy.c:47 [inline]
copy_from_user_nmi+0xcb/0x130 arch/x86/lib/usercopy.c:31
copy_code arch/x86/kernel/dumpstack.c:91 [inline]
show_opcodes+0x59/0xb0 arch/x86/kernel/dumpstack.c:121
show_iret_regs+0xd/0x33 arch/x86/kernel/dumpstack.c:149
__show_regs+0x1e/0x60 arch/x86/kernel/process_64.c:74
show_trace_log_lvl+0x25b/0x2ba arch/x86/kernel/dumpstack.c:292
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_check_gp_kthread_starvation.cold+0x1fb/0x200 kernel/rcu/tree_stall.h:514
print_cpu_stall kernel/rcu/tree_stall.h:659 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:746 [inline]
rcu_pending kernel/rcu/tree.c:4071 [inline]
rcu_sched_clock_irq.cold+0x3ff/0x783 kernel/rcu/tree.c:2759
update_process_times+0x11a/0x1a0 kernel/time/timer.c:1839
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1481
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x1ef/0x570 kernel/locking/lockdep.c:5633
Code: b7 a3 7e 83 f8 01 0f 85 e8 02 00 00 9c 58 f6 c4 02 0f 85 fb 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000469f278 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920008d3e51 RCX: ffffffff815e6c4e
RDX: 1ffff11004be1149 RSI: 0000000000000402 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff906939e7
R10: fffffbfff20d273c R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88802cb3b098 R15: 0000000000000000
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:365 [inline]
batadv_tt_local_purge+0x114/0x370 net/batman-adv/translation-table.c:1355
batadv_tt_local_resize_to_mtu+0x8e/0x130 net/batman-adv/translation-table.c:3957
batadv_hardif_activate_interface.part.0.cold+0x14c/0x1ba net/batman-adv/hard-interface.c:664
batadv_hardif_activate_interface net/batman-adv/hard-interface.c:755 [inline]
batadv_hardif_enable_interface+0xaba/0xac0 net/batman-adv/hard-interface.c:747
batadv_softif_slave_add+0x64/0x130 net/batman-adv/soft-interface.c:839
do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2577
rtnl_newlink_create net/core/rtnetlink.c:3380 [inline]
__rtnl_newlink+0x13ac/0x17e0 net/core/rtnetlink.c:3580
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3593
rtnetlink_rcv_msg+0x43a/0xc90 net/core/rtnetlink.c:6089
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
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:2492
___sys_sendmsg+0xf3/0x170 net/socket.c:2546
__sys_sendmsg net/socket.c:2575 [inline]
__do_sys_sendmsg net/socket.c:2584 [inline]
__se_sys_sendmsg net/socket.c:2582 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
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+0x46/0xb0
RIP: 0033:0x7effeb289109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007effec368168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007effeb39bf60 RCX: 00007effeb289109
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007effeb2e30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe777e93ff R14: 00007effec368300 R15: 0000000000022000
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007effec368168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007effeb39bf60 RCX: 00007effeb289109
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007effeb2e30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe777e93ff R14: 00007effec368300 R15: 0000000000022000
NMI backtrace for cpu 1
CPU: 1 PID: 5349 Comm: syz-executor.3 Not tainted 5.19.0-rc1-next-20220610-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
__dump_stack lib/dump_stack.c:88 [inline]
dump_stack_lvl+0xcd/0x134 lib/dump_stack.c:106
nmi_cpu_backtrace.cold+0x47/0x144 lib/nmi_backtrace.c:111
nmi_trigger_cpumask_backtrace+0x1e6/0x230 lib/nmi_backtrace.c:62
trigger_single_cpu_backtrace include/linux/nmi.h:164 [inline]
rcu_dump_cpu_stacks+0x262/0x3f0 kernel/rcu/tree_stall.h:371
print_cpu_stall kernel/rcu/tree_stall.h:661 [inline]
check_cpu_stall kernel/rcu/tree_stall.h:746 [inline]
rcu_pending kernel/rcu/tree.c:4071 [inline]
rcu_sched_clock_irq.cold+0x404/0x783 kernel/rcu/tree.c:2759
update_process_times+0x11a/0x1a0 kernel/time/timer.c:1839
tick_sched_handle+0x9b/0x180 kernel/time/tick-sched.c:243
tick_sched_timer+0xee/0x120 kernel/time/tick-sched.c:1481
__run_hrtimer kernel/time/hrtimer.c:1685 [inline]
__hrtimer_run_queues+0x1c0/0xe50 kernel/time/hrtimer.c:1749
hrtimer_interrupt+0x31c/0x790 kernel/time/hrtimer.c:1811
local_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1095 [inline]
__sysvec_apic_timer_interrupt+0x146/0x530 arch/x86/kernel/apic/apic.c:1112
sysvec_apic_timer_interrupt+0x8e/0xc0 arch/x86/kernel/apic/apic.c:1106
asm_sysvec_apic_timer_interrupt+0x1b/0x20 arch/x86/include/asm/idtentry.h:649
RIP: 0010:lock_acquire+0x1ef/0x570 kernel/locking/lockdep.c:5633
Code: b7 a3 7e 83 f8 01 0f 85 e8 02 00 00 9c 58 f6 c4 02 0f 85 fb 02 00 00 48 83 7c 24 08 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 48 c7 43 08 00 00 00 00 48 8b 84 24
RSP: 0018:ffffc9000469f278 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff920008d3e51 RCX: ffffffff815e6c4e
RDX: 1ffff11004be1149 RSI: 0000000000000402 RDI: 0000000000000000
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff906939e7
R10: fffffbfff20d273c R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88802cb3b098 R15: 0000000000000000
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:365 [inline]
batadv_tt_local_purge+0x114/0x370 net/batman-adv/translation-table.c:1355
batadv_tt_local_resize_to_mtu+0x8e/0x130 net/batman-adv/translation-table.c:3957
batadv_hardif_activate_interface.part.0.cold+0x14c/0x1ba net/batman-adv/hard-interface.c:664
batadv_hardif_activate_interface net/batman-adv/hard-interface.c:755 [inline]
batadv_hardif_enable_interface+0xaba/0xac0 net/batman-adv/hard-interface.c:747
batadv_softif_slave_add+0x64/0x130 net/batman-adv/soft-interface.c:839
do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2577
rtnl_newlink_create net/core/rtnetlink.c:3380 [inline]
__rtnl_newlink+0x13ac/0x17e0 net/core/rtnetlink.c:3580
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3593
rtnetlink_rcv_msg+0x43a/0xc90 net/core/rtnetlink.c:6089
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
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:2492
___sys_sendmsg+0xf3/0x170 net/socket.c:2546
__sys_sendmsg net/socket.c:2575 [inline]
__do_sys_sendmsg net/socket.c:2584 [inline]
__se_sys_sendmsg net/socket.c:2582 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
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+0x46/0xb0
RIP: 0033:0x7effeb289109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007effec368168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007effeb39bf60 RCX: 00007effeb289109
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007effeb2e30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe777e93ff R14: 00007effec368300 R15: 0000000000022000
NMI backtrace for cpu 1
CPU: 1 PID: 5349 Comm: syz-executor.3 Not tainted 5.19.0-rc1-next-20220610-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:rcu_read_lock_sched_held+0x11/0x70 kernel/rcu/update.c:126
Code: 41 5c c3 45 31 e4 44 89 e0 41 5c c3 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 41 54 41 bc 01 00 00 00 e8 73 4a 16 08 85 c0 75 06 <44> 89 e0 41 5c c3 e8 f4 9d 00 00 84 c0 74 41 e8 cb bd 00 00 84 c0
RSP: 0018:ffffc9000469f280 EFLAGS: 00000246
RAX: 0000000000000000 RBX: 1ffff920008d3e54 RCX: ffffffff815ec068
RDX: dffffc0000000000 RSI: 0000000000000008 RDI: ffffffff8dbc74d0
RBP: 0000000000000001 R08: 0000000000000000 R09: ffffffff8dbc74d7
R10: fffffbfff1b78e9a R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000000 R14: ffff88802cb36a98 R15: 0000000000000000
FS: 00007effec368700(0000) GS:ffff8880b9b00000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f66e31a0000 CR3: 000000001c569000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000006
DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000400
Call Trace:
trace_lock_acquire include/trace/events/lock.h:24 [inline]
lock_acquire+0x480/0x570 kernel/locking/lockdep.c:5636
__raw_spin_lock_bh include/linux/spinlock_api_smp.h:126 [inline]
_raw_spin_lock_bh+0x2f/0x40 kernel/locking/spinlock.c:178
spin_lock_bh include/linux/spinlock.h:365 [inline]
batadv_tt_local_purge_pending_clients+0x112/0x4d0 net/batman-adv/translation-table.c:3655
batadv_tt_local_resize_to_mtu+0x96/0x130 net/batman-adv/translation-table.c:3958
batadv_hardif_activate_interface.part.0.cold+0x14c/0x1ba net/batman-adv/hard-interface.c:664
batadv_hardif_activate_interface net/batman-adv/hard-interface.c:755 [inline]
batadv_hardif_enable_interface+0xaba/0xac0 net/batman-adv/hard-interface.c:747
batadv_softif_slave_add+0x64/0x130 net/batman-adv/soft-interface.c:839
do_set_master+0x1c8/0x220 net/core/rtnetlink.c:2577
rtnl_newlink_create net/core/rtnetlink.c:3380 [inline]
__rtnl_newlink+0x13ac/0x17e0 net/core/rtnetlink.c:3580
rtnl_newlink+0x64/0xa0 net/core/rtnetlink.c:3593
rtnetlink_rcv_msg+0x43a/0xc90 net/core/rtnetlink.c:6089
netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
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:2492
___sys_sendmsg+0xf3/0x170 net/socket.c:2546
__sys_sendmsg net/socket.c:2575 [inline]
__do_sys_sendmsg net/socket.c:2584 [inline]
__se_sys_sendmsg net/socket.c:2582 [inline]
__x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
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+0x46/0xb0
RIP: 0033:0x7effeb289109
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007effec368168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007effeb39bf60 RCX: 00007effeb289109
RDX: 0000000000000000 RSI: 0000000020000080 RDI: 0000000000000004
RBP: 00007effeb2e30ad R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffe777e93ff R14: 00007effec368300 R15: 0000000000022000
----------------
Code disassembly (best guess):
0: b7 a3 mov $0xa3,%bh
2: 7e 83 jle 0xffffff87
4: f8 clc
5: 01 0f add %ecx,(%rdi)
7: 85 e8 test %ebp,%eax
9: 02 00 add (%rax),%al
b: 00 9c 58 f6 c4 02 0f add %bl,0xf02c4f6(%rax,%rbx,2)
12: 85 fb test %edi,%ebx
14: 02 00 add (%rax),%al
16: 00 48 83 add %cl,-0x7d(%rax)
19: 7c 24 jl 0x3f
1b: 08 00 or %al,(%rax)
1d: 74 01 je 0x20
1f: fb sti
20: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax
27: fc ff df
* 2a: 48 01 c3 add %rax,%rbx <-- trapping instruction
2d: 48 c7 03 00 00 00 00 movq $0x0,(%rbx)
34: 48 c7 43 08 00 00 00 movq $0x0,0x8(%rbx)
3b: 00
3c: 48 rex.W
3d: 8b .byte 0x8b
3e: 84 .byte 0x84
3f: 24 .byte 0x24