rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5819/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=25421, q=462 ncpus=2)
task:syz-executor state:R
running task stack:20056 pid:5819 tgid:5819 ppid:5817 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7078
irqentry_exit+0x5e/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_stack_walk+0x2e/0x150 arch/x86/kernel/stacktrace.c:18
Code: 55 48 89 e5 41 57 41 56 41 55 41 54 53 48 83 ec 68 49 89 cf 49 89 d4 49 89 f6 49 89 fd 65 48 8b 04 25 28 00 00 00 48 89 45 d0 <48> c7 45 c8 00 00 00 00 48 c7 45 c0 00 00 00 00 48 c7 45 b8 00 00
RSP: 0018:ffffc900039376e0 EFLAGS: 00000282
RAX: 6b51fa61c5cd8a00 RBX: ffffc900039377d0 RCX: 0000000000000000
RDX: ffff888035d50000 RSI: ffffc900039377c0 RDI: ffffffff818b36f0
RBP: ffffc90003937770 R08: ffffffff8214bed2 R09: 0000000000000000
R10: ffffc900039378a0 R11: fffff52000726f24 R12: ffff888035d50000
R13: ffffffff818b36f0 R14: ffffc900039377c0 R15: 0000000000000000
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xdef/0x1130 mm/page_alloc.c:2657
discard_slab mm/slub.c:2673 [inline]
__put_partials+0xeb/0x130 mm/slub.c:3142
put_cpu_partial+0x17c/0x250 mm/slub.c:3217
__slab_free+0x2ea/0x3d0 mm/slub.c:4468
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x9a/0x140 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x14f/0x170 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x23/0x80 mm/kasan/common.c:329
kasan_slab_alloc include/linux/kasan.h:250 [inline]
slab_post_alloc_hook mm/slub.c:4104 [inline]
slab_alloc_node mm/slub.c:4153 [inline]
kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4160
lsm_file_alloc security/security.c:733 [inline]
security_file_alloc+0x32/0x310 security/security.c:2853
init_file+0x91/0x280 fs/file_table.c:156
alloc_empty_file+0xb8/0x1d0 fs/file_table.c:232
alloc_file fs/file_table.c:345 [inline]
alloc_file_clone+0x58/0xe0 fs/file_table.c:414
create_pipe_files+0x3e7/0x700 fs/pipe.c:950
__do_pipe_flags+0x48/0x2d0 fs/pipe.c:973
do_pipe2+0xd4/0x310 fs/pipe.c:1024
__do_sys_pipe2 fs/pipe.c:1042 [inline]
__se_sys_pipe2 fs/pipe.c:1040 [inline]
__x64_sys_pipe2+0x5a/0x70 fs/pipe.c:1040
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7ff78fb7ec39
RSP: 002b:00007ffd88f937f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000125
RAX: ffffffffffffffda RBX: 0000555578f5fb10 RCX: 00007ff78fb7ec39
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 00007ffd88f93818
RBP: 00007ffd88f93dc0 R08: 000000002b0099eb R09: 0000555578f643c8
R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd88f93a00
R13: 0000555578f643a0 R14: 0000555578f6b2b0 R15: 585858582e7a7973
rcu: rcu_preempt kthread starved for 10556 jiffies! g25421 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:25976 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6848
schedule_timeout+0x15a/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x2df/0x1330 kernel/rcu/tree.c:2045
rcu_gp_kthread+0xa7/0x3b0 kernel/rcu/tree.c:2247
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/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 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.13.0-rc1-syzkaller-00230-g15bfb14727bc #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/25/2024
RIP: 0010:nf_hook_slow+0x141/0x220 net/netfilter/core.c:625
Code: fd 01 0f 85 c4 00 00 00 e8 cc 9e ba f7 49 ff c5 48 b8 00 00 00 00 00 fc ff df 41 0f b6 04 07 84 c0 75 1e 48 8b 04 24 0f b7 00 <49> 39 c5 73 36 e8 a5 9e ba f7 48 83 c3 10 49 83 c6 10 e9 17 ff ff
RSP: 0018:ffffc90000156778 EFLAGS: 00000246
RAX: 0000000000000002 RBX: ffff888025459408 RCX: ffff88801cebda00
RDX: 0000000000000100 RSI: ffffffff8fd196a0 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: ffffffff89e4d307
R10: 0000000000000004 R11: ffff88801cebda00 R12: ffffc90000156820
R13: 0000000000000001 R14: ffff888025459410 R15: 1ffff11004a8b280
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe7e2117178 CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x2a7/0x460 include/linux/netfilter.h:312
br_forward_finish+0xd8/0x130 net/bridge/br_forward.c:66
br_nf_forward_finish+0xb49/0xfb0 net/bridge/br_netfilter_hooks.c:693
NF_HOOK+0x700/0x7c0 include/linux/netfilter.h:314
br_nf_forward_ip+0x61e/0x7b0 net/bridge/br_netfilter_hooks.c:747
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x2a7/0x460 include/linux/netfilter.h:312
__br_forward+0x489/0x660 net/bridge/br_forward.c:115
br_handle_frame_finish+0x18ba/0x1fe0 net/bridge/br_input.c:215
br_nf_hook_thresh+0x472/0x590
br_nf_pre_routing_finish_ipv6+0xaa0/0xdd0
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x379/0x770 net/bridge/br_netfilter_ipv6.c:184
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
br_handle_frame+0x9fd/0x1530 net/bridge/br_input.c:424
__netif_receive_skb_core+0x14eb/0x4690 net/core/dev.c:5566
__netif_receive_skb_one_core net/core/dev.c:5670 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5785
process_backlog+0x662/0x15b0 net/core/dev.c:6117
__napi_poll+0xcb/0x490 net/core/dev.c:6883
napi_poll net/core/dev.c:6952 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:7074
handle_softirqs+0x2d4/0x9b0 kernel/softirq.c:554
run_ksoftirqd+0xca/0x130 kernel/softirq.c:943
smpboot_thread_fn+0x544/0xa30 kernel/smpboot.c:164
kthread+0x2f0/0x390 kernel/kthread.c:389
ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
net_ratelimit: 59036 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 veth0_to_bridge with own address as source address (addr:8a:47:c7:9e:9b:1f, 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 veth0_to_bridge with own address as source address (addr:8a:47:c7:9e:9b:1f, 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 veth0_to_bridge with own address as source address (addr:8a:47:c7:9e:9b:1f, vlan:0)