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 veth0_to_bridge with own address as source address (addr:de:12:64:f0:c3:d5, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P6578/1:b..l P6283/2:b..l P6619/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=13457, q=412 ncpus=1)
task:syz-executor state:R running task stack:27472 pid:6619 tgid:6619 ppid:5841 task_flags:0x40044c flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:6944
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock include/linux/spinlock_api_smp.h:143 [inline]
_raw_spin_unlock+0x3e/0x50 kernel/locking/spinlock.c:186
spin_unlock include/linux/spinlock.h:391 [inline]
zap_pte_range mm/memory.c:1771 [inline]
zap_pmd_range mm/memory.c:1833 [inline]
zap_pud_range mm/memory.c:1862 [inline]
zap_p4d_range mm/memory.c:1883 [inline]
unmap_page_range+0xee3/0x4390 mm/memory.c:1904
unmap_single_vma+0x194/0x2b0 mm/memory.c:1950
unmap_vmas+0x22f/0x490 mm/memory.c:1994
exit_mmap+0x1c1/0xba0 mm/mmap.c:1284
__mmput+0x12a/0x410 kernel/fork.c:1356
mmput+0x62/0x70 kernel/fork.c:1378
exit_mm kernel/exit.c:570 [inline]
do_exit+0x9ba/0x2db0 kernel/exit.c:925
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3036
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
irqentry_exit_to_user_mode+0x13f/0x280 kernel/entry/common.c:231
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x7f3c84b16b30
RSP: 002b:00007fffb6e67eb8 EFLAGS: 00010286
RAX: ffffffffffffffff RBX: 00007fffb6e67ec0 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 00007fffb6e67ec0 RDI: 0000555591958808
RBP: 00007fffb6e682fc R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000027
R13: 00000000000927c0 R14: 0000000000026ec6 R15: 00007fffb6e68350
task:syz.0.87 state:R running task stack:22928 pid:6283 tgid:6283 ppid:5841 task_flags:0x40064c flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:arch_atomic_try_cmpxchg arch/x86/include/asm/atomic.h:107 [inline]
RIP: 0010:raw_atomic_try_cmpxchg include/linux/atomic/atomic-arch-fallback.h:2130 [inline]
RIP: 0010:raw_atomic_fetch_add_unless include/linux/atomic/atomic-arch-fallback.h:2431 [inline]
RIP: 0010:raw_atomic_add_unless include/linux/atomic/atomic-arch-fallback.h:2456 [inline]
RIP: 0010:atomic_add_unless include/linux/atomic/atomic-instrumented.h:1518 [inline]
RIP: 0010:page_ref_add_unless.constprop.0+0x336/0x390 include/linux/page_ref.h:238
Code: f2 ca ff 31 ff 44 89 e6 45 89 e5 e8 e4 ed ca ff 45 85 e4 0f 84 90 fd ff ff e8 d6 f2 ca ff 41 8d 54 24 01 44 89 e0 f0 0f b1 13 <40> 0f 94 c5 31 ff 41 89 c4 89 ee e8 5a ed ca ff 40 84 ed 74 bf e8
RSP: 0018:ffffc90005207308 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffffea000136adf4 RCX: ffffffff81eeff6c
RDX: 0000000000000002 RSI: ffffffff81eeff7a RDI: 0000000000000005
RBP: ffffea000136adc0 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000001
R13: 0000000000000001 R14: fffffffffffffffe R15: 0000000000000003
folio_ref_add_unless include/linux/page_ref.h:248 [inline]
folio_try_get include/linux/page_ref.h:264 [inline]
find_get_entry mm/filemap.c:2039 [inline]
find_lock_entries+0x1c2/0xbd0 mm/filemap.c:2129
shmem_undo_range+0x20d/0x1170 mm/shmem.c:1094
shmem_truncate_range mm/shmem.c:1224 [inline]
shmem_evict_inode+0x3a3/0xba0 mm/shmem.c:1352
evict+0x409/0x960 fs/inode.c:796
iput_final fs/inode.c:1946 [inline]
iput fs/inode.c:1972 [inline]
iput+0x52a/0x890 fs/inode.c:1958
dentry_unlink_inode+0x29c/0x480 fs/dcache.c:440
__dentry_kill+0x1d0/0x600 fs/dcache.c:643
dput.part.0+0x4b1/0x9b0 fs/dcache.c:885
dput+0x1f/0x30 fs/dcache.c:875
__fput+0x51c/0xb70 fs/file_table.c:472
task_work_run+0x14e/0x250 kernel/task_work.c:227
exit_task_work include/linux/task_work.h:40 [inline]
do_exit+0xad8/0x2db0 kernel/exit.c:938
do_group_exit+0xd3/0x2a0 kernel/exit.c:1087
get_signal+0x24ed/0x26c0 kernel/signal.c:3036
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
irqentry_exit_to_user_mode+0x13f/0x280 kernel/entry/common.c:231
asm_exc_invalid_op+0x1a/0x20 arch/x86/include/asm/idtentry.h:621
RIP: 0033:0x14
RSP: 002b:0000200000000018 EFLAGS: 00010202
RAX: 0000000000000000 RBX: 00007f3c84da6080 RCX: 00007f3c84b8d169
RDX: 0000000000000000 RSI: 0000200000000010 RDI: 0000000080000000
RBP: 00007f3c84c0e2a0 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f3c84da6080 R15: 00007fffb6e67f38
task:syz.3.155 state:R running task stack:24512 pid:6578 tgid:6578 ppid:5840 task_flags:0x400640 flags:0x00004002
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7087
irqentry_exit+0x36/0x90 kernel/entry/common.c:354
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:702
RIP: 0010:lock_release+0x3e5/0x6f0 kernel/locking/lockdep.c:5859
Code: 7e 83 f8 01 0f 85 fe 01 00 00 9c 58 f6 c4 02 0f 85 e9 01 00 00 48 f7 04 24 00 02 00 00 74 01 fb 48 b8 00 00 00 00 00 fc ff df <48> 01 c3 48 c7 03 00 00 00 00 c7 43 08 00 00 00 00 48 8b 84 24 88
RSP: 0018:ffffc90004cae8e0 EFLAGS: 00000206
RAX: dffffc0000000000 RBX: 1ffff92000995d1e RCX: ffffc90004cae930
RDX: 1ffff1100609bc9c RSI: ffffffff8b6cff80 RDI: ffffffff8bd35960
RBP: 849104325607f9a0 R08: 0000000000000000 R09: fffffbfff20c51c2
R10: ffffffff90628e17 R11: 0000000000000002 R12: 0000000000000002
R13: 0000000000000003 R14: ffff8880304de4e8 R15: ffff8880304dda00
rcu_lock_release include/linux/rcupdate.h:347 [inline]
rcu_read_unlock include/linux/rcupdate.h:880 [inline]
page_ext_put+0x43/0xd0 mm/page_ext.c:550
__page_table_check_zero+0x2d7/0x360 mm/page_table_check.c:160
page_table_check_alloc include/linux/page_table_check.h:33 [inline]
post_alloc_hook+0x171/0x1b0 mm/page_alloc.c:1552
prep_new_page mm/page_alloc.c:1559 [inline]
get_page_from_freelist+0xfce/0x2f80 mm/page_alloc.c:3477
__alloc_frozen_pages_noprof+0x221/0x2470 mm/page_alloc.c:4740
alloc_pages_mpol+0x1fc/0x540 mm/mempolicy.c:2270
folio_alloc_mpol_noprof+0x36/0x2f0 mm/mempolicy.c:2289
shmem_alloc_folio+0x135/0x160 mm/shmem.c:1863
shmem_alloc_and_add_folio+0x48e/0xc10 mm/shmem.c:1902
shmem_get_folio_gfp+0x689/0x1530 mm/shmem.c:2545
shmem_get_folio mm/shmem.c:2651 [inline]
shmem_write_begin+0x161/0x300 mm/shmem.c:3301
generic_perform_write+0x3e9/0x940 mm/filemap.c:4102
shmem_file_write_iter+0x10e/0x140 mm/shmem.c:3477
__kernel_write_iter+0x318/0xa90 fs/read_write.c:612
dump_emit_page fs/coredump.c:885 [inline]
dump_user_range+0x388/0x910 fs/coredump.c:946
elf_core_dump+0x287c/0x3a50 fs/binfmt_elf.c:2129
do_coredump+0x3166/0x4410 fs/coredump.c:759
get_signal+0x230b/0x26c0 kernel/signal.c:3021
arch_do_signal_or_restart+0x90/0x7e0 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop kernel/entry/common.c:111 [inline]
exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline]
irqentry_exit_to_user_mode+0x13f/0x280 kernel/entry/common.c:231
asm_exc_page_fault+0x26/0x30 arch/x86/include/asm/idtentry.h:623
RIP: 0033:0x0
RSP: 002b:0000000000000011 EFLAGS: 00010217
RAX: 0000000000000000 RBX: 00007fae2a5a6160 RCX: 00007fae2a38d169
RDX: 9999999999999999 RSI: 0000000000000009 RDI: 0000000000000021
RBP: 00007fae2a40e2a0 R08: 0000000000000006 R09: 0000000000000000
R10: ffffffff81000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007fae2a5a6160 R15: 00007ffcfd3b45c8
rcu: rcu_preempt kthread starved for 361 jiffies! g13457 f0x0 RCU_GP_WAIT_FQS(5) ->state=0x0 ->cpu=1
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:27552 pid:18 tgid:18 ppid:2 task_flags:0x208040 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5378 [inline]
__schedule+0xf43/0x5890 kernel/sched/core.c:6765
__schedule_loop kernel/sched/core.c:6842 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6857
schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2024
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2226
kthread+0x3af/0x750 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
rcu: Stack dump where RCU GP kthread last ran:
CPU: 1 UID: 0 PID: 3399 Comm: kworker/R-bat_e Not tainted 6.14.0-rc7-syzkaller-00137-g5fc319360819 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
Workqueue: bat_events batadv_dat_purge
RIP: 0010:in_softirq_really kernel/kcov.c:171 [inline]
RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline]
RIP: 0010:write_comp_data+0x1f/0x90 kernel/kcov.c:246
Code: 90 90 90 90 90 90 90 90 90 90 90 49 89 d2 49 89 f8 49 89 f1 65 48 8b 15 df ee 49 7e 65 8b 05 e0 ee 49 7e a9 00 01 ff 00 74 1d c4 01 74 67 a9 00 00 0f 00 75 60 a9 00 00 f0 00 75 59 8b 82 2c
RSP: 0018:ffffc90000a278c8 EFLAGS: 00000206
RAX: 0000000080000101 RBX: 0000000000000003 RCX: ffffffff8a034dcd
RDX: ffff888031621e00 RSI: 00000000fffffffd RDI: 0000000000000005
RBP: ffffc90000a279d8 R08: 0000000000000005 R09: 00000000fffffffd
R10: 00000000fffffffd R11: 0000000000000005 R12: 00000000fffffffd
R13: ffff88805d55b0b8 R14: 1ffff92000144f29 R15: 0000000000000000
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fa8ac3ffffc CR3: 0000000063838000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
find_match+0x24d/0x15d0 net/ipv6/route.c:756
__find_rr_leaf+0x141/0xe00 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+0x57e/0xa30 net/ipv6/route.c:2195
ip6_pol_route+0x1cd/0x1120 net/ipv6/route.c:2231
pol_lookup_func include/net/ip6_fib.h:616 [inline]
fib6_rule_lookup+0x536/0x720 net/ipv6/fib6_rules.c:119
ip6_route_input_lookup net/ipv6/route.c:2300 [inline]
ip6_route_input+0x663/0xc10 net/ipv6/route.c:2596
ip6_rcv_finish_core.constprop.0+0x1a0/0x5d0 net/ipv6/ip6_input.c:66
ip6_rcv_finish+0x12c/0x5b0 net/ipv6/ip6_input.c:77
ip_sabotage_in+0x21b/0x290 net/bridge/br_netfilter_hooks.c:993
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
nf_hook.constprop.0+0x42e/0x750 include/linux/netfilter.h:269
NF_HOOK include/linux/netfilter.h:312 [inline]
ipv6_rcv+0xa4/0x680 net/ipv6/ip6_input.c:309
__netif_receive_skb_one_core+0x12e/0x1e0 net/core/dev.c:5896
__netif_receive_skb+0x1d/0x160 net/core/dev.c:6009
netif_receive_skb_internal net/core/dev.c:6095 [inline]
netif_receive_skb+0x13f/0x7b0 net/core/dev.c:6154
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
br_pass_frame_up+0x346/0x490 net/bridge/br_input.c:70
br_handle_frame_finish+0xecc/0x1c90 net/bridge/br_input.c:226
br_nf_hook_thresh+0x303/0x410 net/bridge/br_netfilter_hooks.c:1170
br_nf_pre_routing_finish_ipv6+0x76a/0xfb0 net/bridge/br_netfilter_ipv6.c:154
NF_HOOK include/linux/netfilter.h:314 [inline]
br_nf_pre_routing_ipv6+0x3ce/0x8c0 net/bridge/br_netfilter_ipv6.c:184
br_nf_pre_routing+0x860/0x15b0 net/bridge/br_netfilter_hooks.c:508
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:282 [inline]
br_handle_frame+0xad7/0x14a0 net/bridge/br_input.c:433
__netif_receive_skb_core.constprop.0+0xa20/0x4330 net/core/dev.c:5790
__netif_receive_skb_one_core+0xb1/0x1e0 net/core/dev.c:5894
__netif_receive_skb+0x1d/0x160 net/core/dev.c:6009
process_backlog+0x443/0x15f0 net/core/dev.c:6357
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:7191
napi_poll net/core/dev.c:7260 [inline]
net_rx_action+0xa94/0x1010 net/core/dev.c:7382
handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
do_softirq kernel/softirq.c:462 [inline]
do_softirq+0xb2/0xf0 kernel/softirq.c:449
__local_bh_enable_ip+0x100/0x120 kernel/softirq.c:389
spin_unlock_bh include/linux/spinlock.h:396 [inline]
__batadv_dat_purge.part.0+0x279/0x3a0 net/batman-adv/distributed-arp-table.c:185
__batadv_dat_purge net/batman-adv/distributed-arp-table.c:166 [inline]
batadv_dat_purge+0x4b/0xa0 net/batman-adv/distributed-arp-table.c:204
process_one_work+0x9c5/0x1ba0 kernel/workqueue.c:3238
process_scheduled_works kernel/workqueue.c:3319 [inline]
rescuer_thread+0x616/0xe80 kernel/workqueue.c:3496
kthread+0x3af/0x750 kernel/kthread.c:464
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:148
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
net_ratelimit: 12054 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:de:12:64:f0:c3:d5, 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: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:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:de:12:64:f0:c3:d5, 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: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:aa:aa:aa:aa:aa:0c, vlan:0)
net_ratelimit: 19161 callbacks suppressed
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: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:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:de:12:64:f0:c3:d5, 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: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:aa:aa:aa:aa:aa:0c, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:de:12:64:f0:c3:d5, vlan:0)