bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6733/2:b..l
rcu: (detected by 0, t=10503 jiffies, g=12949, q=50490 ncpus=2)
task:syz.0.435 state:R running task stack:23824 pid:6733 tgid:6731 ppid:5230 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6675
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:6997
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:check_kcov_mode kernel/kcov.c:194 [inline]
RIP: 0010:__sanitizer_cov_trace_pc+0x37/0x70 kernel/kcov.c:217
Code: c0 d7 03 00 65 8b 15 00 fc 6e 7e 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 35 83 b9 1c 16 00 00 00 74 2c 8b 91 f8 15 00 00 <83> fa 02 75 21 48 8b 91 00 16 00 00 48 8b 32 48 8d 7e 01 8b 89 fc
RSP: 0018:ffffc900032af170 EFLAGS: 00000246
RAX: ffffffff81cdedbc RBX: 1ffffd40003551e0 RCX: ffff88805dbabc00
RDX: 0000000000000002 RSI: 0000000000000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff81cdeda8 R09: 1ffffffff2039d55
R10: dffffc0000000000 R11: fffffbfff2039d56 R12: ffffc900032af340
R13: ffffea0001aa8f08 R14: ffffea0001aa8f00 R15: 1ffffd40003551e1
arch_static_branch arch/x86/include/asm/jump_label.h:27 [inline]
page_fixed_fake_head include/linux/page-flags.h:205 [inline]
page_is_fake_head include/linux/page-flags.h:237 [inline]
PageTail include/linux/page-flags.h:281 [inline]
const_folio_flags include/linux/page-flags.h:309 [inline]
folio_test_uptodate include/linux/page-flags.h:763 [inline]
next_uptodate_folio+0x1bc/0xa40 mm/filemap.c:3510
filemap_map_pages+0x2f3/0x20d0 mm/filemap.c:3645
do_fault_around mm/memory.c:5240 [inline]
do_read_fault mm/memory.c:5273 [inline]
do_fault mm/memory.c:5416 [inline]
do_pte_missing mm/memory.c:3965 [inline]
handle_pte_fault+0x2b98/0x6800 mm/memory.c:5751
__handle_mm_fault mm/memory.c:5894 [inline]
handle_mm_fault+0x1106/0x1bb0 mm/memory.c:6062
faultin_page mm/gup.c:1187 [inline]
__get_user_pages+0x1b16/0x48d0 mm/gup.c:1485
populate_vma_page_range+0x264/0x330 mm/gup.c:1923
__mm_populate+0x27a/0x460 mm/gup.c:2026
mm_populate include/linux/mm.h:3371 [inline]
vm_mmap_pgoff+0x2c3/0x3d0 mm/util.c:593
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: 0033:0x7febcc57dff9
RSP: 002b:00007febcbfde038 EFLAGS: 00000246 ORIG_RAX: 0000000000000009
RAX: ffffffffffffffda RBX: 00007febcc736058 RCX: 00007febcc57dff9
RDX: 0000000000000003 RSI: 0000000000b36000 RDI: 0000000020000000
RBP: 00007febcc5f0296 R08: ffffffffffffffff R09: 0000000000000000
R10: 0000000000008031 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007febcc736058 R15: 00007ffd3441b2f8
rcu: rcu_preempt kthread starved for 10488 jiffies! g12949 f0x2 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:25888 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5315 [inline]
__schedule+0x1895/0x4b30 kernel/sched/core.c:6675
__schedule_loop kernel/sched/core.c:6752 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6767
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615
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:
CPU: 0 UID: 0 PID: 5308 Comm: kworker/0:5 Not tainted 6.12.0-rc1-syzkaller-00178-g983e35ce2e1e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Workqueue: events nsim_dev_trap_report_work
RIP: 0010:lock_release+0x658/0xa30 kernel/locking/lockdep.c:5850
Code: 3c 3b 00 74 08 4c 89 f7 e8 a5 1b 8e 00 f6 84 24 91 00 00 00 02 75 77 41 f7 c5 00 02 00 00 74 01 fb 48 c7 44 24 60 0e 36 e0 45 <4b> c7 04 27 00 00 00 00 4b c7 44 27 08 00 00 00 00 65 48 8b 04 25
RSP: 0018:ffffc90000006b60 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff92000000d7e RCX: ffffc90000006b03
RDX: 0000000000000006 RSI: ffffffff8c0adc40 RDI: ffffffff8c60f860
RBP: ffffc90000006ca0 R08: ffffffff901ceaaf R09: 1ffffffff2039d55
R10: dffffc0000000000 R11: fffffbfff2039d56 R12: 1ffff92000000d78
R13: 0000000000000246 R14: ffffc90000006bf0 R15: dffffc0000000000
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f606feb4f98 CR3: 000000000e734000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_release include/linux/rcupdate.h:347 [inline]
rcu_read_unlock+0x93/0xa0 include/linux/rcupdate.h:880
ip6_rcv_core+0xfdd/0x15f0 net/ipv6/ip6_input.c:286
ipv6_rcv+0x71/0xc0 net/ipv6/ip6_input.c:306
__netif_receive_skb_one_core net/core/dev.c:5666 [inline]
__netif_receive_skb+0x1ea/0x650 net/core/dev.c:5779
netif_receive_skb_internal net/core/dev.c:5865 [inline]
netif_receive_skb+0x1e8/0x890 net/core/dev.c:5924
NF_HOOK+0x9e/0x400 include/linux/netfilter.h:314
br_handle_frame_finish+0x18ed/0x1fe0
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+0x13e8/0x4570 net/core/dev.c:5560
__netif_receive_skb_one_core net/core/dev.c:5664 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5779
process_backlog+0x662/0x15b0 net/core/dev.c:6111
__napi_poll+0xcb/0x490 net/core/dev.c:6775
napi_poll net/core/dev.c:6844 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6966
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
do_softirq+0x11b/0x1e0 kernel/softirq.c:455
__local_bh_enable_ip+0x1bb/0x200 kernel/softirq.c:382
spin_unlock_bh include/linux/spinlock.h:396 [inline]
nsim_dev_trap_report drivers/net/netdevsim/dev.c:820 [inline]
nsim_dev_trap_report_work+0x75d/0xaa0 drivers/net/netdevsim/dev.c:850
process_one_work kernel/workqueue.c:3229 [inline]
process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310
worker_thread+0x870/0xd30 kernel/workqueue.c:3391
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
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:06:0b:25:24:a3:c4, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:06:0b:25:24:a3:c4, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth1_to_bridge with own address as source address (addr:06:0b:25:24:a3:c4, vlan:0)
bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:0c, vlan:0)