bridge0: received packet on veth1 with own address as source address (addr:aa:aa:aa:aa:aa:18, vlan:0)
bridge0: received packet on veth1 with own address as source address (addr:aa:aa:aa:aa:aa:18, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P24876/1:b..l
rcu: (detected by 1, t=10505 jiffies, g=139613, q=2107 ncpus=2)
task:syz.4.4057 state:R running task stack:28168 pid:24876 tgid:24850 ppid:19652 task_flags:0x400040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5526 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7276
preempt_schedule_irq+0x4b/0x90 kernel/sched/core.c:7598
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 f0 09 42 0a f7 44 24 10 00 02 00 00 0f 84 38 ff ff ff 65 48 8b 05 42 c5 f1 11 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 c7 3f da
RSP: 0018:ffffc90006617448 EFLAGS: 00000286
RAX: bc55af7fb8979700 RBX: 0000000000000000 RCX: 0000000000000046
RDX: 0000000043a416ee RSI: ffffffff8e6fe025 RDI: ffffffff8c6d9c80
RBP: ffff888034b23e80 R08: ffffffff8243a49c R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed100cf9053a R12: ffffffff8ed5c8a0
R13: 0000000000000002 R14: 0000000000000000 R15: 0000000000000246
rcu_lock_acquire include/linux/rcupdate.h:309 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
__page_table_check_zero+0x89/0x430 mm/page_table_check.c:138
page_table_check_alloc include/linux/page_table_check.h:38 [inline]
post_alloc_hook+0x208/0x250 mm/page_alloc.c:1872
prep_new_page mm/page_alloc.c:1879 [inline]
get_page_from_freelist+0x2209/0x2280 mm/page_alloc.c:3943
__alloc_frozen_pages_noprof+0x217/0x5a0 mm/page_alloc.c:5436
__alloc_pages_noprof+0x10/0x100 mm/page_alloc.c:5471
alloc_pages_bulk_noprof+0x5fa/0x7c0 mm/page_alloc.c:5295
___alloc_pages_bulk mm/kasan/shadow.c:345 [inline]
__kasan_populate_vmalloc_do mm/kasan/shadow.c:370 [inline]
__kasan_populate_vmalloc+0xb7/0x1c0 mm/kasan/shadow.c:424
kasan_populate_vmalloc include/linux/kasan.h:580 [inline]
alloc_vmap_area+0xd1a/0x1420 mm/vmalloc.c:2145
__get_vm_area_node+0x200/0x2f0 mm/vmalloc.c:3248
__vmalloc_node_range_noprof+0x343/0x1540 mm/vmalloc.c:4064
xskq_vmalloc_user net/xdp/xsk_queue.c:28 [inline]
xskq_create+0x148/0x220 net/xdp/xsk_queue.c:59
xsk_init_queue+0x8a/0xe0 net/xdp/xsk.c:1484
xsk_setsockopt+0x52a/0x960 net/xdp/xsk.c:1909
do_sock_setsockopt+0x17c/0x1b0 net/socket.c:2397
__sys_setsockopt net/socket.c:2422 [inline]
__do_sys_setsockopt net/socket.c:2428 [inline]
__se_sys_setsockopt net/socket.c:2425 [inline]
__x64_sys_setsockopt+0x13d/0x1b0 net/socket.c:2425
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: 0033:0x7f2bb099e159
RSP: 002b:00007f2bb182f028 EFLAGS: 00000246 ORIG_RAX: 0000000000000036
RAX: ffffffffffffffda RBX: 00007f2bb0c26540 RCX: 00007f2bb099e159
RDX: 0000000000000006 RSI: 000000000000011b RDI: 0000000000000007
RBP: 00007f2bb0a3503b R08: 0000000000000004 R09: 0000000000000000
R10: 0000200000000180 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f2bb0c265d8 R14: 00007f2bb0c26540 R15: 00007fff0c015ed8
rcu: rcu_preempt kthread starved for 425 jiffies! g139613 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:28112 pid:17 tgid:17 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5526 [inline]
__schedule+0x17db/0x58f0 kernel/sched/core.c:7276
__schedule_loop kernel/sched/core.c:7353 [inline]
schedule+0x164/0x2b0 kernel/sched/core.c:7368
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: 153 Comm: kworker/u8:7 Not tainted syzkaller #0 PREEMPT(full)
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/24/2026
Workqueue: events_unbound nsim_dev_trap_report_work
RIP: 0010:check_preemption_disabled+0x1/0xd0 lib/smp_processor_id.c:13
Code: 20 9c 6d 8c 48 c7 c6 60 9c 6d 8c eb 1c 66 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 55 <41> 57 41 56 53 65 8b 05 db 9d af 07 65 48 8b 0d ab 9d af 07 85 c9
RSP: 0018:ffffc90000007248 EFLAGS: 00000046
RAX: 0ac0d5affe09d4ff RBX: 0000000000000206 RCX: 0000000000000000
RDX: ffffc90000007301 RSI: ffffffff8e6fe025 RDI: ffffffff8c6d9c80
RBP: ffff888020782bb8 R08: ffffc90000007808 R09: 0000000000000000
R10: ffffc900000073b8 R11: fffff52000000e79 R12: 0000000000000005
R13: 0000000000000005 R14: ffffffff8ed5c8a0 R15: ffff888020781f40
FS: 0000000000000000(0000) GS:ffff888124cd1000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f18b082e000 CR3: 000000007dd40000 CR4: 00000000003526f0
Call Trace:
lockdep_recursion_finish kernel/locking/lockdep.c:470 [inline]
lock_release+0x263/0x3c0 kernel/locking/lockdep.c:5966
rcu_lock_release include/linux/rcupdate.h:319 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
class_rcu_destructor include/linux/rcupdate.h:1216 [inline]
unwind_next_frame+0x1baa/0x2550 arch/x86/kernel/unwind_orc.c:709
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_alloc net/core/skbuff.c:7121 [inline]
skb_ext_add+0x148/0x8e0 net/core/skbuff.c:7225
nf_bridge_alloc include/net/netfilter/br_netfilter.h:12 [inline]
br_nf_pre_routing+0xc52/0x14b0 net/bridge/br_netfilter_hooks.c:528
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:6151
__netif_receive_skb_one_core net/core/dev.c:6262 [inline]
__netif_receive_skb net/core/dev.c:6377 [inline]
process_backlog+0x727/0x18b0 net/core/dev.c:6728
__napi_poll+0xaa/0x330 net/core/dev.c:7787
napi_poll net/core/dev.c:7850 [inline]
net_rx_action+0x61d/0xf50 net/core/dev.c:8007
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
spin_unlock_bh include/linux/spinlock.h:407 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:816 [inline]
nsim_dev_trap_report_work+0x7a4/0xb40 drivers/net/netdevsim/dev.c:847
process_one_work kernel/workqueue.c:3396 [inline]
process_scheduled_works+0xc3d/0x1630 kernel/workqueue.c:3479
worker_thread+0xa47/0xfb0 kernel/workqueue.c:3560
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