bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:be:aa:72:08:b9, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5817/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=13605, q=1546 ncpus=2)
task:syz-executor state:R running task stack:23816 pid:5817 tgid:5817 ppid:5801 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x60e0 kernel/sched/core.c:6907
preempt_schedule_irq+0x50/0x90 kernel/sched/core.c:7234
irqentry_exit+0x17b/0x670 kernel/entry/common.c:239
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:debug_lockdep_rcu_enabled+0x20/0x40 kernel/rcu/update.c:320
Code: 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 8b 05 82 e0 4a 05 85 c0 74 20 8b 05 b0 12 4b 05 85 c0 74 16 65 48 8b 05 88 90 7e 08 <8b> 80 14 0b 00 00 85 c0 0f 94 c0 0f b6 c0 e9 fd 2b 03 00 66 2e 0f
RSP: 0018:ffffc900025e7610 EFLAGS: 00000202
RAX: ffff888079be8000 RBX: ffffc900025e79b0 RCX: ffffffff91868b01
RDX: ffffc900025e79b8 RSI: ffffc900025e7988 RDI: ffffc900025e7698
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000007
R10: 0000000000000200 R11: 00000000000174f5 R12: ffffc900025e76d8
R13: ffffc900025e7688 R14: ffffc900025e79b0 R15: ffffc900025e76bc
rcu_read_unlock include/linux/rcupdate.h:879 [inline]
class_rcu_destructor include/linux/rcupdate.h:1193 [inline]
unwind_next_frame+0x3a8/0x1ea0 arch/x86/kernel/unwind_orc.c:495
arch_stack_walk+0x94/0xf0 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
save_stack+0x162/0x1e0 mm/page_owner.c:165
__reset_page_owner+0x84/0x190 mm/page_owner.c:320
reset_page_owner include/linux/page_owner.h:25 [inline]
__free_pages_prepare mm/page_alloc.c:1432 [inline]
__free_frozen_pages+0x7ca/0x10a0 mm/page_alloc.c:2977
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x47/0xe0 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x1a0/0x1f0 mm/kasan/quarantine.c:286
__kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:406
kasan_kmalloc include/linux/kasan.h:263 [inline]
__do_kmalloc_node mm/slub.c:5177 [inline]
__kmalloc_noprof+0x301/0x850 mm/slub.c:5189
kmalloc_noprof include/linux/slab.h:966 [inline]
kzalloc_noprof include/linux/slab.h:1204 [inline]
xt_jumpstack_alloc net/netfilter/x_tables.c:1336 [inline]
xt_replace_table+0x592/0x860 net/netfilter/x_tables.c:1395
__do_replace+0x1cf/0x980 net/ipv4/netfilter/ip_tables.c:1064
do_replace net/ipv4/netfilter/ip_tables.c:1141 [inline]
do_ipt_set_ctl+0x912/0xb90 net/ipv4/netfilter/ip_tables.c:1635
nf_setsockopt+0x8d/0xf0 net/netfilter/nf_sockopt.c:101
ip_setsockopt+0xcb/0xf0 net/ipv4/ip_sockglue.c:1424
tcp_setsockopt+0xa7/0x100 net/ipv4/tcp.c:4217
do_sock_setsockopt+0xf3/0x1d0 net/socket.c:2322
__sys_setsockopt+0x195/0x220 net/socket.c:2347
__do_sys_setsockopt net/socket.c:2353 [inline]
__se_sys_setsockopt net/socket.c:2350 [inline]
__x64_sys_setsockopt+0xbd/0x160 net/socket.c:2350
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0x106/0xf80 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fbfe1d9d7da
RSP: 002b:00007ffe3528a788 EFLAGS: 00000202 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007ffe3528a810 RCX: 00007fbfe1d9d7da
RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003
RBP: 0000000000000003 R08: 0000000000000408 R09: 0000000000000000
R10: 00007fbfe1fe8c40 R11: 0000000000000202 R12: 00007fbfe1fe8be0
R13: 00007ffe3528a7ac R14: 0000000000000000 R15: 00007fbfe1fea020
rcu: rcu_preempt kthread starved for 5152 jiffies! g13605 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->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:28320 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5295 [inline]
__schedule+0xfee/0x60e0 kernel/sched/core.c:6907
__schedule_loop kernel/sched/core.c:6989 [inline]
schedule+0xdd/0x390 kernel/sched/core.c:7004
schedule_timeout+0x127/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1a9/0x900 kernel/rcu/tree.c:2095
rcu_gp_kthread+0x179/0x230 kernel/rcu/tree.c:2297
kthread+0x370/0x450 kernel/kthread.c:467
ret_from_fork+0x754/0xd80 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:
CPU: 0 UID: 0 PID: 0 Comm: swapper/0 Tainted: G L syzkaller #0 PREEMPT(full)
Tainted: [L]=SOFTLOCKUP
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2026
RIP: 0010:pv_native_safe_halt+0xf/0x20 arch/x86/kernel/paravirt.c:63
Code: 98 83 02 c3 cc cc cc cc 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 43 2c 1d 00 fb f4 bc 35 03 00 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
RSP: 0018:ffffffff8e407e00 EFLAGS: 00000246
RAX: 0000000002806c2b RBX: ffffffff8e4975c0 RCX: ffffffff8b8e5c75
RDX: 0000000000000000 RSI: ffffffff8de6cf89 RDI: ffffffff8c1adf20
RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed1017086795
R10: ffff8880b8433cab R11: 0000000000000000 R12: fffffbfff1c92eb8
R13: 0000000000000000 R14: ffffffff90d92f10 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff888124352000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f57be3185b8 CR3: 000000005b5b4000 CR4: 00000000003526f0
Call Trace:
arch_safe_halt arch/x86/include/asm/paravirt.h:73 [inline]
default_idle+0x9/0x10 arch/x86/kernel/process.c:767
default_idle_call+0x6c/0xb0 kernel/sched/idle.c:122
cpuidle_idle_call kernel/sched/idle.c:191 [inline]
do_idle+0x35b/0x4b0 kernel/sched/idle.c:332
cpu_startup_entry+0x4f/0x60 kernel/sched/idle.c:430
rest_init+0x251/0x260 init/main.c:760
start_kernel+0x47f/0x480 init/main.c:1210
x86_64_start_reservations+0x24/0x30 arch/x86/kernel/head64.c:310
x86_64_start_kernel+0x12b/0x130 arch/x86/kernel/head64.c:291
common_startup_64+0x13e/0x148
net_ratelimit: 16884 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:be:aa:72:08:b9, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:be:aa:72:08:b9, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:be:aa:72:08:b9, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:be:aa:72:08:b9, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:62:be:aa:72:08:b9, vlan:0)