bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P27080/1:b..l
rcu: (detected by 0, t=10547 jiffies, g=155809, q=2047 ncpus=2)
task:syz.6.4956 state:R running task stack:28808 pid:27080 tgid:27073 ppid:17838 task_flags:0x400040 flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7284
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7606
irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline]
irqentry_exit+0x14f/0x910 kernel/entry/common.c:167
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:debug_lockdep_rcu_enabled+0x20/0x40 kernel/rcu/update.c:321
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d cb a1 92 04 00 74 1d 83 3d 9a d1 92 04 00 74 14 65 48 8b 0d 18 f5 ad 07 <31> c0 83 b9 a4 0b 00 00 00 0f 94 c0 c3 cc cc cc cc cc cc cc cc cc
RSP: 0018:ffffc90004bf7858 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffffff82536d82 RCX: ffff888026b6be80
RDX: 00000000105209fd RSI: ffffffff8e69f41d RDI: ffffffff8c6dac80
RBP: 1ffff9200097ef28 R08: ffffffff8177f1df R09: 0000000000000000
R10: ffffc90004bf7958 R11: ffffffff81b293f0 R12: dffffc0000000000
R13: ffffffff8177f1df R14: ffffc90004bf7908 R15: 1ffff9200097ef21
rcu_read_lock include/linux/rcupdate.h:850 [inline]
class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0xb5/0x2550 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:340 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010
lsm_inode_alloc security/security.c:254 [inline]
security_inode_alloc+0x39/0x310 security/security.c:1215
inode_init_always_gfp+0x97e/0xd30 fs/inode.c:298
inode_init_always include/linux/fs.h:2965 [inline]
alloc_inode+0x82/0x1b0 fs/inode.c:345
new_inode_pseudo include/linux/fs.h:3044 [inline]
sock_alloc net/socket.c:710 [inline]
__sock_create+0x12d/0x9d0 net/socket.c:1643
sock_create net/socket.c:1737 [inline]
__sys_socket_create net/socket.c:1774 [inline]
__sys_socket+0xd6/0x1b0 net/socket.c:1821
__do_sys_socket net/socket.c:1835 [inline]
__se_sys_socket net/socket.c:1833 [inline]
__x64_sys_socket+0x7a/0x90 net/socket.c:1833
do_syscall_x64 arch/x86/entry/syscall_64.c:61 [inline]
do_syscall_64+0x166/0x520 arch/x86/entry/syscall_64.c:84
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f856799e159
RSP: 002b:00007f85688b7028 EFLAGS: 00000246 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 00007f8567c26360 RCX: 00007f856799e159
RDX: 0000000000000000 RSI: 0000000000000002 RDI: 000000000000000a
RBP: 00007f8567a3506b R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8567c263f8 R14: 00007f8567c26360 R15: 00007fffb2d06a58
rcu: rcu_preempt kthread starved for 434 jiffies! g155809 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->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:27496 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5533 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7284
__schedule_loop kernel/sched/core.c:7361 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7376
schedule_timeout+0x152/0x2c0 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x30c/0x11f0 kernel/rcu/tree.c:2122
rcu_gp_kthread+0x9e/0x2b0 kernel/rcu/tree.c:2330
kthread+0x38b/0x480 kernel/kthread.c:436
ret_from_fork+0x514/0xb70 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
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: 27079 Comm: syz.6.4956 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:kasan_mem_to_shadow include/linux/kasan.h:65 [inline]
RIP: 0010:memory_is_poisoned_n mm/kasan/generic.c:141 [inline]
RIP: 0010:memory_is_poisoned mm/kasan/generic.c:172 [inline]
RIP: 0010:check_region_inline mm/kasan/generic.c:191 [inline]
RIP: 0010:kasan_check_range+0x60/0x2c0 mm/kasan/generic.c:200
Code: b9 00 00 00 00 00 00 00 ff 4c 39 cf 0f 82 14 02 00 00 49 89 ff 49 c1 ef 03 49 ba 00 00 00 00 00 fc ff df 4f 8d 1c 17 49 ff c8 <4d> 89 c1 49 c1 e9 03 48 bb 01 00 00 00 00 fc ff df 4d 8d 34 19 4d
RSP: 0018:ffffc90000a17b68 EFLAGS: 00000282
RAX: ffffc90005237d01 RBX: 0000000000000010 RCX: ffffffff8177fe54
RDX: 0000000000000001 RSI: 0000000000000010 RDI: ffffc90000a17cb8
RBP: 0000000000000000 R08: ffffc90000a17cc7 R09: ffff800000000000
R10: dffffc0000000000 R11: fffff52000142f97 R12: dffffc0000000000
R13: ffffffff911352f0 R14: ffffc90000a17cb8 R15: 1ffff92000142f97
FS: 0000000000000000(0000) GS:ffff888124dc4000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f328fe00218 CR3: 00000000516c0000 CR4: 00000000003526f0
Call Trace:
__asan_memset+0x22/0x50 mm/kasan/shadow.c:84
unwind_next_frame+0xd04/0x2550 arch/x86/kernel/unwind_orc.c:621
arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122
kasan_save_stack mm/kasan/common.c:57 [inline]
kasan_save_track+0x3e/0x80 mm/kasan/common.c:78
unpoison_slab_object mm/kasan/common.c:340 [inline]
__kasan_slab_alloc+0x6c/0x80 mm/kasan/common.c:366
kasan_slab_alloc include/linux/kasan.h:253 [inline]
slab_post_alloc_hook mm/slub.c:4683 [inline]
slab_alloc_node mm/slub.c:4996 [inline]
kmem_cache_alloc_noprof+0x2b9/0x600 mm/slub.c:5010
skb_ext_maybe_cow net/core/skbuff.c:7170 [inline]
skb_ext_add+0x1b6/0x8e0 net/core/skbuff.c:7245
nf_bridge_unshare net/bridge/br_netfilter_hooks.c:170 [inline]
br_nf_forward_ip+0xc3/0xa30 net/bridge/br_netfilter_hooks.c:686
nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:633
nf_hook include/linux/netfilter.h:280 [inline]
NF_HOOK+0x23e/0x3f0 include/linux/netfilter.h:323
__br_forward+0x41e/0x5d0 net/bridge/br_forward.c:130
deliver_clone net/bridge/br_forward.c:146 [inline]
maybe_deliver+0x373/0x5b0 net/bridge/br_forward.c:210
br_flood+0x142/0x650 net/bridge/br_forward.c:343
br_handle_frame_finish+0x1119/0x1950 net/bridge/br_input.c:229
br_nf_hook_thresh+0x3dd/0x4c0 net/bridge/br_netfilter_hooks.c:-1
br_nf_pre_routing_finish_ipv6+0x90c/0xc40 net/bridge/br_netfilter_ipv6.c:-1
NF_HOOK include/linux/netfilter.h:325 [inline]
br_nf_pre_routing_ipv6+0x382/0x6f0 net/bridge/br_netfilter_ipv6.c:183
nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:291 [inline]
br_handle_frame+0x1329/0x1600 net/bridge/br_input.c:451
__netif_receive_skb_core+0x989/0x30c0 net/core/dev.c:6187
__netif_receive_skb_one_core net/core/dev.c:6298 [inline]
__netif_receive_skb net/core/dev.c:6413 [inline]
process_backlog+0x727/0x18b0 net/core/dev.c:6764
__napi_poll+0xaa/0x330 net/core/dev.c:7833
napi_poll net/core/dev.c:7896 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:8053
handle_softirqs+0x226/0x860 kernel/softirq.c:645
__do_softirq kernel/softirq.c:679 [inline]
invoke_softirq kernel/softirq.c:519 [inline]
__irq_exit_rcu+0xcb/0x220 kernel/softirq.c:758
irq_exit_rcu+0x9/0x30 kernel/softirq.c:775
instr_sysvec_apic_timer_interrupt arch/x86/kernel/apic/apic.c:1062 [inline]
sysvec_apic_timer_interrupt+0xa6/0xc0 arch/x86/kernel/apic/apic.c:1062
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:674
RIP: 0010:__ns_ref_active_put+0x34f/0x450 kernel/nscommon.c:188
Code: c1 e8 03 42 0f b6 04 28 84 c0 0f 85 ee 00 00 00 41 8b 1e 31 ff 89 de e8 cf 48 35 00 85 db 0f 88 91 00 00 00 e8 c2 43 35 00 5b <41> 5c 41 5d 41 5e 41 5f 5d e9 13 31 58 0a cc e8 ad 43 35 00 eb e9
RSP: 0018:ffffc90005237900 EFLAGS: 00000293
RAX: ffffffff819297fb RBX: ffff888041f77c84 RCX: ffff88807eaeddc0
RDX: 0000000000000000 RSI: 0000000000000006 RDI: 0000000000000000
RBP: dffffc0000000000 R08: ffff88807ea232ab R09: 1ffff1100fd44655
R10: dffffc0000000000 R11: ffffed100fd44656 R12: 1ffff1100fd44654
R13: dffffc0000000000 R14: ffff88807ea232a0 R15: ffff88807ea232a8
free_pid+0xf2/0x340 kernel/pid.c:118
release_task+0x124d/0x1740 kernel/exit.c:302
exit_notify kernel/exit.c:813 [inline]
do_exit+0x168c/0x2360 kernel/exit.c:1024
do_group_exit+0x22d/0x2f0 kernel/exit.c:1155
get_signal+0x121b/0x12c0 kernel/signal.c:3112
arch_do_signal_or_restart+0xbb/0x860 arch/x86/kernel/signal.c:337
__exit_to_user_mode_loop kernel/entry/common.c:66 [inline]
exit_to_user_mode_loop+0x10e/0x770 kernel/entry/common.c:101
__exit_to_user_mode_prepare include/linux/irq-entry-common.h:207 [inline]
syscall_exit_to_user_mode_prepare include/linux/irq-entry-common.h:230 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:343 [inline]
do_syscall_64+0x328/0x520 arch/x86/entry/syscall_64.c:89
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f856799e159
Code: Unable to access opcode bytes at 0x7f856799e12f.
RSP: 002b:00007f85688d80e8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca
RAX: 0000000000000000 RBX: 00007f8567c26278 RCX: 00007f856799e159
RDX: 0000000000000000 RSI: 0000000000000080 RDI: 00007f8567c26278
RBP: 00007f8567c26270 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f8567c26308 R14: 00007fffb2d06970 R15: 00007fffb2d06a58
ip6_tunnel: ip6tnl2 xmit: Local address not yet configured!