bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
ICMPv6: NA: aa:aa:aa:aa:aa:0c advertised our address fe80::a8aa:aaff:feaa:aa0c on bridge0!
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
ICMPv6: NA: aa:aa:aa:aa:aa:0c advertised our address fe80::a8aa:aaff:feaa:aa0c on bridge0!
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P8328/1:b..l P14714/1:b..l
rcu: (detected by 1, t=10623 jiffies, g=272213, q=3223 ncpus=2)
task:syz-executor state:R running task stack:28184 pid:14714 tgid:14714 ppid:7250 task_flags:0x400040 flags:0x00080000
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:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947
Code: ff ff ff e8 b0 1d 44 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 42 78 f1 12 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 87 91 d9
RSP: 0018:ffffc9000a907560 EFLAGS: 00000296
RAX: 5ea5d6a71d1a9f00 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 000000007f0b0b1a RSI: ffffffff8e6dbe7e RDI: ffffffff8c6dd780
RBP: ffff888050c6ddc0 R08: ffffffff817801df R09: 0000000000000000
R10: ffffc9000a907698 R11: ffffffff81b2b310 R12: ffffffff8fd5c8a0
R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0xac/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
save_stack+0x122/0x230 mm/page_owner.c:183
__reset_page_owner+0x71/0x1f0 mm/page_owner.c:338
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__slab_free+0x274/0x2c0 mm/slub.c:5823
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:361
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+0x1f/0x170 fs/inode.c:1170
__shmem_get_inode mm/shmem.c:3043 [inline]
shmem_get_inode+0x3a4/0xfe0 mm/shmem.c:3115
shmem_symlink+0xa2/0x4d0 mm/shmem.c:4066
vfs_symlink+0x18b/0x330 fs/namei.c:5794
filename_symlinkat+0x1cd/0x410 fs/namei.c:5819
__do_sys_symlinkat fs/namei.c:5839 [inline]
__se_sys_symlinkat+0x4e/0x2b0 fs/namei.c:5834
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: 0033:0x7f1cc8d9d257
RSP: 002b:00007ffee43bb868 EFLAGS: 00000202 ORIG_RAX: 000000000000010a
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f1cc8d9d257
RDX: 00007f1cc8e36841 RSI: 00000000ffffff9c RDI: 00007ffee43bb900
RBP: 00007ffee43bb8ac R08: 0000000000000001 R09: 00000000ffffffff
R10: 0000000000000000 R11: 0000000000000202 R12: 00000000000001c7
R13: 00000000000927c0 R14: 0000000000174419 R15: 00007ffee43bb900
task:syz-executor state:R running task stack:22216 pid:8328 tgid:8328 ppid:8320 task_flags:0x400140 flags:0x00080000
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:lock_acquire+0x232/0x350 kernel/locking/lockdep.c:5947
Code: ff ff ff e8 b0 1d 44 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 42 78 f1 12 48 3b 44 24 50 75 33 fb 48 83 c4 58 <5b> 41 5c 41 5d 41 5e 41 5f 5d c3 cc cc cc cc cc 48 8d 3d 87 91 d9
RSP: 0018:ffffc900050af4c0 EFLAGS: 00000296
RAX: 906a3276f9080900 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 00000000d6d4d392 RSI: ffffffff8e6dbe7e RDI: ffffffff8c6dd780
RBP: ffff888027a75dc0 R08: ffffffff817801df R09: 0000000000000000
R10: ffffc900050af5f8 R11: ffffffff81b2b310 R12: ffffffff8fd5c8a0
R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
class_rcu_constructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0xac/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
save_stack+0x122/0x230 mm/page_owner.c:183
__reset_page_owner+0x71/0x1f0 mm/page_owner.c:338
reset_page_owner include/linux/page_owner.h:26 [inline]
__free_pages_prepare mm/page_alloc.c:1418 [inline]
__free_frozen_pages+0xc93/0xd90 mm/page_alloc.c:2962
__slab_free+0x274/0x2c0 mm/slub.c:5823
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:361
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
alloc_empty_file+0x5b/0x1d0 fs/file_table.c:262
path_openat+0xa2/0x1d60 fs/namei.c:4986
do_file_open+0x23e/0x4a0 fs/namei.c:5029
do_sys_openat2+0x115/0x200 fs/open.c:1417
do_sys_open fs/open.c:1423 [inline]
__do_sys_openat fs/open.c:1439 [inline]
__se_sys_openat fs/open.c:1434 [inline]
__x64_sys_openat+0x138/0x170 fs/open.c:1434
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: 0033:0x7fe8c299d4bc
RSP: 002b:00007ffc018186d0 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007fe8c2a34ccb RCX: 00007fe8c299d4bc
RDX: 0000000000090800 RSI: 00007ffc01819880 RDI: 00000000ffffff9c
RBP: 00007ffc0181986c R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc01819880
R13: 00007fe8c2a34ccb R14: 00000000001743ce R15: 00007ffc018198c0
rcu: rcu_preempt kthread starved for 7214 jiffies! g272213 f0x0 RCU_GP_WAIT_FQS(5) ->state=R ->cpu=0
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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 5603 Comm: syz-executor Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
RIP: 0010:__sanitizer_cov_trace_const_cmp1+0x0/0xb0 kernel/kcov.c:295
Code: 08 06 00 00 00 48 89 7c 0a 10 48 89 74 0a 18 48 89 44 0a 20 c3 cc cc cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 48 8b 04 24 65 48 8b 0d 68 ce cc 12 65 48 8b 15 68 ce
RSP: 0018:ffffc90000007898 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffff88814a03c850 RCX: dffffc0000000000
RDX: 8000000000000100 RSI: 0000000000000002 RDI: 0000000000000005
RBP: ffffc900000079f0 R08: 0000000000000100 R09: 0000000000000000
R10: ffffc90000007b30 R11: ffffffff8ab53f60 R12: 1ffff11029407907
R13: 00000000000000b2 R14: 1ffff1102940790a R15: 0000000000000002
FS: 00005555659ae540(0000) GS:ffff888123ad3000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f19cc400218 CR3: 000000007f40e000 CR4: 00000000003526f0
Call Trace:
br_handle_frame+0x169/0x1600 net/bridge/br_input.c:356
__netif_receive_skb_core+0x989/0x30c0 net/core/dev.c:6222
__netif_receive_skb_one_core net/core/dev.c:6333 [inline]
__netif_receive_skb net/core/dev.c:6448 [inline]
process_backlog+0x727/0x18b0 net/core/dev.c:6799
__napi_poll+0xaa/0x330 net/core/dev.c:7868
napi_poll net/core/dev.c:7931 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:8088
handle_softirqs+0x226/0x860 kernel/softirq.c:645
do_softirq+0x77/0xd0 kernel/softirq.c:546
__local_bh_enable_ip+0x100/0x140 kernel/softirq.c:473
local_bh_enable include/linux/bottom_half.h:33 [inline]
ipt_do_table+0x137f/0x15d0 net/ipv4/netfilter/ip_tables.c:357
nf_hook_entry_hookfn include/linux/netfilter.h:165 [inline]
nf_hook_slow+0xc5/0x220 net/netfilter/core.c:633
nf_hook+0x22a/0x3a0 include/linux/netfilter.h:280
__ip_local_out+0x558/0x6a0 net/ipv4/ip_output.c:120
ip_local_out+0x2a/0x190 net/ipv4/ip_output.c:129
__ip_queue_xmit+0x10df/0x1b10 net/ipv4/ip_output.c:533
__tcp_transmit_skb+0x2d18/0x47c0 net/ipv4/tcp_output.c:1717
tcp_transmit_skb net/ipv4/tcp_output.c:1734 [inline]
tcp_write_xmit+0x1cdf/0x6550 net/ipv4/tcp_output.c:3070
__tcp_push_pending_frames+0x96/0x380 net/ipv4/tcp_output.c:3253
tcp_sendmsg_locked+0x472e/0x5320 net/ipv4/tcp.c:1416
tcp_sendmsg+0x2f/0x50 net/ipv4/tcp.c:1453
sock_sendmsg_nosec+0x10f/0x190 net/socket.c:801
__sock_sendmsg net/socket.c:818 [inline]
sock_write_iter+0x2de/0x3e0 net/socket.c:1269
new_sync_write fs/read_write.c:595 [inline]
vfs_write+0x612/0xba0 fs/read_write.c:687
ksys_write+0x150/0x270 fs/read_write.c:739
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: 0033:0x7f19cf759317
Code: 48 89 fa 4c 89 df e8 a8 56 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00 83 e2 39 83 fa 08 75 de e8 23 ff ff ff
RSP: 002b:00007fffb51c5210 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00005555659ae540 RCX: 00007f19cf759317
RDX: 000000000000ea28 RSI: 00007f19cc9f15d8 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 000000000000ea28
R13: 00005555659c2ea0 R14: 00007fffb51c57f0 R15: 00007f19cc9f15d8