bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5822/2:b..l P5832/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=26601, q=751 ncpus=2)
task:syz-executor state:R running task stack:19600 pid:5832 tgid:5832 ppid:5828 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:lock_acquire+0x96/0x550 kernel/locking/lockdep.c:5817
Code: 81 4c 8d 64 24 40 49 c1 ec 03 48 b8 f1 f1 f1 f1 00 f2 f2 f2 4b 89 04 2c 43 c7 44 2c 09 f2 f2 f2 00 43 c7 44 2c 11 f3 f3 f3 f3 <66> 43 c7 44 2c 15 f3 f3 43 c6 44 2c 17 f3 0f 1f 44 00 00 65 8b 05
RSP: 0018:ffffc9000404f040 EFLAGS: 00000a02
RAX: f2f2f200f1f1f1f1 RBX: ffffea0000c89980 RCX: 0000000000000002
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8e937ae0
RBP: ffffc9000404f1a0 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1006459ca0 R12: 1ffff92000809e10
R13: dffffc0000000000 R14: 0000000000000000 R15: dffffc0000000000
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
page_ext_get+0x3d/0x2a0 mm/page_ext.c:525
__page_table_check_zero+0xb1/0x350 mm/page_table_check.c:148
page_table_check_free include/linux/page_table_check.h:41 [inline]
free_pages_prepare mm/page_alloc.c:1128 [inline]
free_unref_page+0xd53/0x1010 mm/page_alloc.c:2657
discard_slab mm/slub.c:2688 [inline]
__put_partials+0x160/0x1c0 mm/slub.c:3157
put_cpu_partial+0x17c/0x250 mm/slub.c:3232
__slab_free+0x290/0x380 mm/slub.c:4483
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:4119 [inline]
slab_alloc_node mm/slub.c:4168 [inline]
__do_kmalloc_node mm/slub.c:4297 [inline]
__kmalloc_noprof+0x236/0x4c0 mm/slub.c:4310
kmalloc_noprof include/linux/slab.h:905 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
tomoyo_encode2 security/tomoyo/realpath.c:45 [inline]
tomoyo_encode+0x26f/0x540 security/tomoyo/realpath.c:80
tomoyo_realpath_from_path+0x59e/0x5e0 security/tomoyo/realpath.c:283
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_check_open_permission+0x258/0x4f0 security/tomoyo/file.c:771
security_file_open+0xac/0x250 security/security.c:3105
do_dentry_open+0x328/0x1b70 fs/open.c:928
vfs_open+0x3e/0x330 fs/open.c:1075
do_open fs/namei.c:3828 [inline]
path_openat+0x2c84/0x3590 fs/namei.c:3987
do_filp_open+0x27f/0x4e0 fs/namei.c:4014
do_sys_openat2+0x13e/0x1d0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x247/0x2a0 fs/open.c:1428
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: 0033:0x7f7c8c585621
RSP: 002b:00007ffd87d1dec0 EFLAGS: 00000287 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 00007f7c8c601894 RCX: 00007f7c8c585621
RDX: 0000000000090800 RSI: 00007ffd87d1f060 RDI: 00000000ffffff9c
RBP: 00007ffd87d1f04c R08: 0000000000000000 R09: 7fffffffffffffff
R10: 0000000000000000 R11: 0000000000000287 R12: 00007ffd87d1f060
R13: 00007f7c8c601894 R14: 00007ffd87d1f0a0 R15: 000000000000011c
task:syz-executor state:R running task stack:20656 pid:5822 tgid:5822 ppid:5819 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__local_bh_enable_ip+0x179/0x200 kernel/softirq.c:396
local_bh_enable include/linux/bottom_half.h:33 [inline]
__neigh_event_send+0x95/0x15d0 net/core/neighbour.c:1196
neigh_event_send_probe include/net/neighbour.h:463 [inline]
neigh_event_send include/net/neighbour.h:469 [inline]
neigh_resolve_output+0x1b5/0x740 net/core/neighbour.c:1498
neigh_output include/net/neighbour.h:539 [inline]
ip_finish_output2+0xe70/0x1390 net/ipv4/ip_output.c:236
ip_local_out net/ipv4/ip_output.c:130 [inline]
__ip_queue_xmit+0x12ca/0x1ef0 net/ipv4/ip_output.c:536
__tcp_transmit_skb+0x2582/0x3ba0 net/ipv4/tcp_output.c:1468
tcp_transmit_skb net/ipv4/tcp_output.c:1486 [inline]
tcp_write_xmit+0x17b5/0x6bf0 net/ipv4/tcp_output.c:2829
__tcp_push_pending_frames+0x9b/0x360 net/ipv4/tcp_output.c:3012
tcp_sendmsg_locked+0x44d6/0x4f30 net/ipv4/tcp.c:1326
tcp_sendmsg+0x30/0x50 net/ipv4/tcp.c:1358
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg+0x1a6/0x270 net/socket.c:726
sock_write_iter+0x2d7/0x3f0 net/socket.c:1147
new_sync_write fs/read_write.c:586 [inline]
vfs_write+0xaeb/0xd30 fs/read_write.c:679
ksys_write+0x18f/0x2b0 fs/read_write.c:731
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: 0033:0x7fbfc73847a0
RSP: 002b:00007fffa3739678 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000000a113ec7c0 RCX: 00007fbfc73847a0
RDX: 00000000000000c8 RSI: 00007fbfc4dfff38 RDI: 0000000000000003
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000dffde8
R10: b281287aca8e8e2f R11: 0000000000000202 R12: 00000000000000c8
R13: 0000555578132c50 R14: 00007fffa3739b80 R15: 00007fbfc4dfff38
rcu: rcu_preempt kthread starved for 897 jiffies! g26601 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:26264 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-rc3-syzkaller-00167-gb3a69c559899 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:match_held_lock+0x2/0xb0 kernel/locking/lockdep.c:5294
Code: c4 10 5b 41 5e 41 5f c3 cc cc cc cc e8 07 f9 ff ff 0f 1f 80 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 53 01 00 00 00 48 39 77 10 74 67 48 89 fb 81 7f 20 00 00 20 00 72
RSP: 0018:ffffc90000156ba0 EFLAGS: 00000097
RAX: 0000000000000000 RBX: ffff88801cace4e0 RCX: 0000000080000100
RDX: ffff88801cacda00 RSI: ffffffff8e937ae0 RDI: ffff88801cace4e0
RBP: 0000000000000000 R08: ffffffff899a5576 R09: ffffc90000156f30
R10: ffffc90000156f20 R11: fffff5200002adb2 R12: 0000000000000246
R13: ffff88801cacda00 R14: 00000000ffffffff R15: ffffffff8e937ae0
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd87d1df3c CR3: 00000000342c8000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
__lock_is_held kernel/locking/lockdep.c:5590 [inline]
lock_is_held_type+0xa9/0x190 kernel/locking/lockdep.c:5921
__in6_dev_get include/net/addrconf.h:330 [inline]
ip6_ignore_linkdown include/net/addrconf.h:421 [inline]
find_match+0xf9/0xc10 net/ipv6/route.c:747
__find_rr_leaf+0x275/0x8e0 net/ipv6/route.c:835
find_rr_leaf net/ipv6/route.c:856 [inline]
rt6_select net/ipv6/route.c:900 [inline]
fib6_table_lookup+0x413/0xbb0 net/ipv6/route.c:2195
ip6_pol_route+0x273/0x15d0 net/ipv6/route.c:2231
pol_lookup_func include/net/ip6_fib.h:616 [inline]
__fib6_rule_action net/ipv6/fib6_rules.c:234 [inline]
fib6_rule_action+0x655/0x7c0 net/ipv6/fib6_rules.c:272
fib_rules_lookup+0x62c/0xdb0 net/core/fib_rules.c:319
fib6_rule_lookup+0x1fd/0x790 net/ipv6/fib6_rules.c:109
ip6_route_input_lookup net/ipv6/route.c:2300 [inline]
ip6_route_input+0x859/0xd90 net/ipv6/route.c:2596
ip6_rcv_finish+0x144/0x180 net/ipv6/ip6_input.c:77
NF_HOOK+0x3a4/0x450 include/linux/netfilter.h:314
__netif_receive_skb_one_core net/core/dev.c:5672 [inline]
__netif_receive_skb+0x1ea/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:561
run_ksoftirqd+0xca/0x130 kernel/softirq.c:950
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: 29318 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
net_ratelimit: 35734 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:ec:ba:4d:46:b6, vlan:0)