bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P13095/1:b..l P3029/1:b..l
rcu: (detected by 0, t=10503 jiffies, g=49577, q=397 ncpus=2)
task:kworker/u8:9 state:R running task stack:24736 pid:3029 tgid:3029 ppid:2 flags:0x00004000
Workqueue: bat_events batadv_bla_periodic_work
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0xef5/0x5750 kernel/sched/core.c:6682
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6861
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0x107/0x120 kernel/softirq.c:389
local_bh_enable include/linux/bottom_half.h:33 [inline]
netif_rx net/core/dev.c:5251 [inline]
netif_rx+0x93/0xb0 net/core/dev.c:5240
batadv_bla_send_claim+0x5ea/0xb90 net/batman-adv/bridge_loop_avoidance.c:447
batadv_bla_send_announce+0x12e/0x180 net/batman-adv/bridge_loop_avoidance.c:675
batadv_bla_periodic_work+0x436/0x9e0 net/batman-adv/bridge_loop_avoidance.c:1481
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
task:syz-executor state:R running task stack:27680 pid:13095 tgid:13095 ppid:5223 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0xef5/0x5750 kernel/sched/core.c:6682
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7004
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:_find_next_bit+0xc0/0x110 lib/find_bit.c:146
Code: 48 89 ea 48 c1 ea 03 42 80 3c 22 00 75 30 48 8b 55 00 48 85 d2 74 d5 48 c1 e3 06 f3 48 0f bc d2 48 01 d3 48 39 c3 48 0f 46 c3 <48> 83 c4 10 5b 5d 41 5c 41 5d c3 cc cc cc cc c3 cc cc cc cc 48 89
RSP: 0018:ffffc9001791f880 EFLAGS: 00000283
RAX: 0000000000000042 RBX: 0000000000000042 RCX: dffffc0000000000
RDX: 0000000000000002 RSI: 1ffff11005d155c9 RDI: ffff88802e8aae48
RBP: ffff88802e8aae50 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000800 R11: 0000000000000000 R12: dffffc0000000000
R13: 0000000000000000 R14: ffffc9001791fc58 R15: dffffc0000000000
find_next_bit include/linux/find.h:69 [inline]
ebitmap_next_positive security/selinux/ss/ebitmap.h:72 [inline]
context_struct_compute_av+0x86a/0x1270 security/selinux/ss/services.c:651
security_compute_av+0x48f/0xfd0 security/selinux/ss/services.c:1140
avc_compute_av+0x86/0x5c0 security/selinux/avc.c:986
avc_perm_nonode+0xaa/0x170 security/selinux/avc.c:1110
avc_has_perm_noaudit+0x2d2/0x3a0 security/selinux/avc.c:1153
avc_has_perm+0xc1/0x1c0 security/selinux/avc.c:1188
may_create+0x2fd/0x360 security/selinux/hooks.c:1835
security_inode_symlink+0xe4/0x280 security/security.c:2176
vfs_symlink fs/namei.c:4611 [inline]
vfs_symlink+0x37f/0x660 fs/namei.c:4599
do_symlinkat+0x263/0x310 fs/namei.c:4641
__do_sys_symlinkat fs/namei.c:4657 [inline]
__se_sys_symlinkat fs/namei.c:4654 [inline]
__x64_sys_symlinkat+0x93/0xc0 fs/namei.c:4654
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f2a1c77d577
RSP: 002b:00007fff9a165788 EFLAGS: 00000202 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f2a1c77d577
RDX: 00007f2a1c7f19a9 RSI: 00000000ffffff9c RDI: 00007f2a1c7f0659
RBP: 00007fff9a1657bc R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000032
R13: 000000000004d806 R14: 000000000004d792 R15: 00007fff9a165810
rcu: rcu_preempt kthread starved for 10559 jiffies! g49577 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:R running task stack:27504 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5322 [inline]
__schedule+0xef5/0x5750 kernel/sched/core.c:6682
__schedule_loop kernel/sched/core.c:6759 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6774
schedule_timeout+0x136/0x2a0 kernel/time/timer.c:2615
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
Sending NMI from CPU 0 to CPUs 1:
NMI backtrace for cpu 1
CPU: 1 UID: 0 PID: 5379 Comm: kworker/1:6 Not tainted 6.12.0-rc3-syzkaller-00013-geca631b8fe80 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:26 [inline]
RIP: 0010:check_preemption_disabled+0xf/0xe0 lib/smp_processor_id.c:16
Code: 0f 0b 90 e9 53 fc ff ff 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 41 54 55 53 48 83 ec 08 65 8b 1d ad e3 e1 74 <65> 8b 05 a2 e3 e1 74 a9 ff ff ff 7f 74 0f 48 83 c4 08 89 d8 5b 5d
RSP: 0018:ffffc90000a18380 EFLAGS: 00000082
RAX: 0000000000000001 RBX: 0000000000000001 RCX: ffffffff8169b65e
RDX: fffffbfff20be7e2 RSI: ffffffff8bd1a140 RDI: ffffffff8bd1a180
RBP: 0000000000000000 R08: 0000000000000000 R09: fffffbfff20be7e1
R10: ffffffff905f3f0f R11: 0000000000000000 R12: 0000000000000000
R13: 0000000000000002 R14: 0000000000000001 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007efdfe2656c0 CR3: 0000000068b24000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_is_watching_curr_cpu include/linux/context_tracking.h:128 [inline]
rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:737
trace_lock_acquire+0x14a/0x1d0 include/trace/events/lock.h:24
lock_acquire+0x2f/0xb0 kernel/locking/lockdep.c:5796
__raw_read_lock_irqsave include/linux/rwlock_api_smp.h:160 [inline]
_raw_read_lock_irqsave+0x46/0x90 kernel/locking/spinlock.c:236
netlink_lock_table net/netlink/af_netlink.c:470 [inline]
netlink_broadcast_filtered+0xd8/0xef0 net/netlink/af_netlink.c:1537
nlmsg_multicast_filtered include/net/netlink.h:1125 [inline]
nlmsg_multicast include/net/netlink.h:1144 [inline]
nlmsg_notify+0x9e/0x220 net/netlink/af_netlink.c:2594
fdb_notify+0xfd/0x1a0 net/bridge/br_fdb.c:206
br_fdb_update+0x32a/0x7c0 net/bridge/br_fdb.c:941
br_handle_frame_finish+0xd77/0x1c80 net/bridge/br_input.c:141
nf_hook_bridge_pre net/bridge/br_input.c:299 [inline]
br_handle_frame+0xd96/0x1490 net/bridge/br_input.c:424
__netif_receive_skb_core.constprop.0+0xa3d/0x4330 net/core/dev.c:5560
__netif_receive_skb_one_core+0xb1/0x1e0 net/core/dev.c:5664
__netif_receive_skb+0x1d/0x160 net/core/dev.c:5779
process_backlog+0x443/0x15f0 net/core/dev.c:6111
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6775
napi_poll net/core/dev.c:6844 [inline]
net_rx_action+0xa92/0x1010 net/core/dev.c:6966
handle_softirqs+0x213/0x8f0 kernel/softirq.c:554
do_softirq kernel/softirq.c:455 [inline]
do_softirq+0xb2/0xf0 kernel/softirq.c:442
__local_bh_enable_ip+0x100/0x120 kernel/softirq.c:382
spin_unlock_bh include/linux/spinlock.h:396 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]
nsim_dev_trap_report_work+0x870/0xc80 drivers/net/netdevsim/dev.c:850
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3229
process_scheduled_works kernel/workqueue.c:3310 [inline]
worker_thread+0x6c8/0xf00 kernel/workqueue.c:3391
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
net_ratelimit: 10566 callbacks suppressed
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 11567 callbacks suppressed
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)