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)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P21535/1:b..l P21494/1:b..l P34/1:b..l P5496/1:b..l P2/1:b..l P5202/1:b..l
rcu: (detected by 1, t=10502 jiffies, g=125805, q=359 ncpus=1)
task:udevd state:R running task stack:24728 pid:5202 tgid:5202 ppid:1 task_flags:0x400140 flags:0x00080001
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256
irqentry_exit+0x36/0x90 kernel/entry/common.c:211
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:orc_find arch/x86/kernel/unwind_orc.c:220 [inline]
RIP: 0010:unwind_next_frame+0x2a4/0x20a0 arch/x86/kernel/unwind_orc.c:494
Code: 20 44 89 5c 24 18 e8 6b 4c b8 00 48 8b 54 24 30 8b 4c 24 28 8b 74 24 20 44 8b 5c 24 18 89 cf 8b 14 95 c4 61 d0 91 48 8d 04 7f <48> 8d 84 00 88 7e 0f 91 83 c2 01 48 3d c2 61 d0 91 0f 83 4d 08 00
RSP: 0018:ffffc90002f97890 EFLAGS: 00000246
RAX: 00000000000a0230 RBX: 0000000000000001 RCX: 0000000000035610
RDX: 0000000000035610 RSI: 00000000000a6149 RDI: 0000000000035610
RBP: ffffc90002f97948 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 00000000000118ab R12: ffffc90002f97950
R13: ffffc90002f97900 R14: ffffc90002f97935 R15: ffffffff8218abff
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x84/0x1a0 mm/page_owner.c:311
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1394 [inline]
__free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
discard_slab mm/slub.c:3330 [inline]
__put_partials+0x130/0x170 mm/slub.c:3876
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:352
kasan_slab_alloc include/linux/kasan.h:252 [inline]
slab_post_alloc_hook mm/slub.c:4978 [inline]
slab_alloc_node mm/slub.c:5288 [inline]
kmem_cache_alloc_noprof+0x250/0x6e0 mm/slub.c:5295
getname_flags.part.0+0x4c/0x550 fs/namei.c:146
getname_flags+0x93/0xf0 include/linux/audit.h:345
getname include/linux/fs.h:2922 [inline]
do_sys_openat2+0xb8/0x1d0 fs/open.c:1431
do_sys_open fs/open.c:1452 [inline]
__do_sys_openat fs/open.c:1468 [inline]
__se_sys_openat fs/open.c:1463 [inline]
__x64_sys_openat+0x174/0x210 fs/open.c:1463
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f69a8115c3a
RSP: 002b:00007ffc26c212e8 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 000055f87a02f970 RCX: 00007f69a8115c3a
RDX: 0000000000090800 RSI: 000055f879fcf4f0 RDI: 00000000ffffff9c
RBP: 000055f879fcf4f0 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000000 R11: 0000000000000206 R12: 000055f879fd07b0
R13: 00000000000000ff R14: 000055f863c57be0 R15: 00007ffc26c21570
task:kthreadd state:R running task stack:26888 pid:2 tgid:2 ppid:0 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256
irqentry_exit+0x36/0x90 kernel/entry/common.c:211
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:lock_acquire+0x62/0x350 kernel/locking/lockdep.c:5872
Code: dd 08 12 83 f8 07 0f 87 bc 02 00 00 89 c0 48 0f a3 05 a2 f1 e9 0e 0f 82 74 02 00 00 8b 35 fa 21 ea 0e 85 f6 0f 85 8d 00 00 00 <48> 8b 44 24 30 65 48 2b 05 b9 dc 08 12 0f 85 c7 02 00 00 48 83 c4
RSP: 0018:ffffc90000077508 EFLAGS: 00000206
RAX: 0000000000000046 RBX: ffffffff8e3c45a0 RCX: 000000003dd14a72
RDX: 0000000000000000 RSI: ffffffff8da02bce RDI: ffffffff8bf075c0
RBP: 0000000000000002 R08: c38a6c4676ae9d58 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
rcu_lock_acquire include/linux/rcupdate.h:331 [inline]
rcu_read_lock include/linux/rcupdate.h:867 [inline]
class_rcu_constructor include/linux/rcupdate.h:1195 [inline]
unwind_next_frame+0xd1/0x20a0 arch/x86/kernel/unwind_orc.c:479
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x84/0x1a0 mm/page_owner.c:311
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1394 [inline]
__free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_kmalloc+0x8a/0xb0 mm/kasan/common.c:408
kasan_kmalloc include/linux/kasan.h:262 [inline]
__do_kmalloc_node mm/slub.c:5650 [inline]
__kmalloc_noprof+0x32f/0x880 mm/slub.c:5662
kmalloc_noprof include/linux/slab.h:961 [inline]
kzalloc_noprof include/linux/slab.h:1094 [inline]
lsm_blob_alloc+0x68/0x90 security/security.c:690
lsm_cred_alloc security/security.c:707 [inline]
security_prepare_creds+0x30/0x270 security/security.c:3310
prepare_creds+0x56f/0x7d0 kernel/cred.c:242
copy_creds+0xa7/0xa50 kernel/cred.c:312
copy_process+0xffc/0x76a0 kernel/fork.c:2046
kernel_clone+0xfc/0x930 kernel/fork.c:2609
kernel_thread+0xd7/0x120 kernel/fork.c:2670
create_kthread kernel/kthread.c:486 [inline]
kthreadd+0x503/0x800 kernel/kthread.c:846
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
task:dhcpcd state:R running task stack:25448 pid:5496 tgid:5496 ppid:1 task_flags:0x400140 flags:0x00080001
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256
irqentry_exit+0x36/0x90 kernel/entry/common.c:211
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:rcu_read_unlock include/linux/rcupdate.h:899 [inline]
RIP: 0010:class_rcu_destructor include/linux/rcupdate.h:1195 [inline]
RIP: 0010:unwind_next_frame+0x3f9/0x20a0 arch/x86/kernel/unwind_orc.c:479
Code: 41 c7 45 00 00 00 00 00 31 ed e8 52 b0 f1 09 85 c0 0f 85 9b 06 00 00 48 c7 c7 a0 45 3c 8e 48 8d 35 00 00 00 00 e8 27 95 2c 00 52 bf 36 00 e9 3d fc ff ff 49 81 ff 00 f0 f9 91 72 0d 49 81 ff
RSP: 0018:ffffc90003017350 EFLAGS: 00000292
RAX: 0000000000000000 RBX: ffffc90003017e80 RCX: ffffc90003017314
RDX: 0000000000000001 RSI: ffffffff8da02bce RDI: ffffffff8bf075c0
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 000000000001360c R12: ffffc90003017410
R13: ffffc900030173c0 R14: ffffc90003017e80 R15: ffffc900030173f4
arch_stack_walk+0x94/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x84/0x1a0 mm/page_owner.c:311
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1394 [inline]
__free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:352
kasan_slab_alloc include/linux/kasan.h:252 [inline]
slab_post_alloc_hook mm/slub.c:4978 [inline]
slab_alloc_node mm/slub.c:5288 [inline]
__do_kmalloc_node mm/slub.c:5649 [inline]
__kmalloc_node_track_caller_noprof+0x2fd/0x8a0 mm/slub.c:5759
kmalloc_reserve+0xef/0x2c0 net/core/skbuff.c:601
__alloc_skb+0x166/0x380 net/core/skbuff.c:670
alloc_skb include/linux/skbuff.h:1383 [inline]
alloc_skb_with_frags+0xe0/0x860 net/core/skbuff.c:6671
sock_alloc_send_pskb+0x7f9/0x980 net/core/sock.c:2965
unix_dgram_sendmsg+0x3e9/0x17f0 net/unix/af_unix.c:2153
unix_seqpacket_sendmsg+0x12a/0x1c0 net/unix/af_unix.c:2556
sock_sendmsg_nosec net/socket.c:727 [inline]
__sock_sendmsg net/socket.c:742 [inline]
sock_write_iter+0x566/0x610 net/socket.c:1195
new_sync_write fs/read_write.c:593 [inline]
vfs_write+0x7d3/0x11d0 fs/read_write.c:686
ksys_write+0x1f8/0x250 fs/read_write.c:738
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f9319949407
RSP: 002b:00007ffd6fcebb10 EFLAGS: 00000202 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f93198bf740 RCX: 00007f9319949407
RDX: 0000000000000048 RSI: 00007ffd6fcebb70 RDI: 0000000000000005
RBP: 0000558be9ecede8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 00007ffd6fcebfa0
R13: 0000558bfe459d40 R14: 0000000000000000 R15: 00007ffd6fcec140
task:kcompactd0 state:R running task stack:27096 pid:34 tgid:34 ppid:2 task_flags:0x210040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256
irqentry_exit+0x36/0x90 kernel/entry/common.c:211
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:native_irq_disable arch/x86/include/asm/irqflags.h:37 [inline]
RIP: 0010:arch_local_irq_disable arch/x86/include/asm/irqflags.h:114 [inline]
RIP: 0010:arch_local_irq_save arch/x86/include/asm/irqflags.h:128 [inline]
RIP: 0010:lock_release+0x8f/0x2f0 kernel/locking/lockdep.c:5885
Code: 01 00 00 65 4c 8b 35 78 e3 08 12 41 8b b6 2c 0b 00 00 85 f6 0f 85 ff 00 00 00 48 81 3b 40 f5 a7 93 0f 84 f2 00 00 00 9c 41 5d 48 c7 c7 d5 7c b1 8d e8 84 2e c5 09 65 ff 05 f5 24 09 12 8b 0d
RSP: 0018:ffffc90000aa6ed8 EFLAGS: 00000206
RAX: 0000000000000000 RBX: ffffffff8e3c45a0 RCX: ffffc90000aa8001
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000001
RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000006280 R12: ffffffff816bb704
R13: 0000000000000206 R14: ffff88801fec1e40 R15: ffffc90000aa7014
rcu_lock_release include/linux/rcupdate.h:341 [inline]
rcu_read_unlock include/linux/rcupdate.h:897 [inline]
class_rcu_destructor include/linux/rcupdate.h:1195 [inline]
unwind_next_frame+0x3f9/0x20a0 arch/x86/kernel/unwind_orc.c:479
__unwind_start+0x45f/0x7f0 arch/x86/kernel/unwind_orc.c:758
unwind_start arch/x86/include/asm/unwind.h:64 [inline]
arch_stack_walk+0x73/0x100 arch/x86/kernel/stacktrace.c:24
stack_trace_save+0x8e/0xc0 kernel/stacktrace.c:122
save_stack+0x160/0x1f0 mm/page_owner.c:156
__set_page_owner+0x91/0x560 mm/page_owner.c:332
set_page_owner include/linux/page_owner.h:32 [inline]
post_alloc_hook+0x1c0/0x230 mm/page_alloc.c:1850
compaction_alloc_noprof mm/compaction.c:1836 [inline]
compaction_alloc+0x4d8/0x4210 mm/compaction.c:1847
migrate_folio_unmap mm/migrate.c:1206 [inline]
migrate_pages_batch+0x3bc/0x3bb0 mm/migrate.c:1882
migrate_pages_sync+0x12d/0x8a0 mm/migrate.c:1999
migrate_pages+0x1b5f/0x23a0 mm/migrate.c:2108
compact_zone+0x2018/0x4750 mm/compaction.c:2647
compact_node+0x1a3/0x2c0 mm/compaction.c:2916
kcompactd+0x765/0xeb0 mm/compaction.c:3214
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
task:syz-executor state:R running task stack:25912 pid:21494 tgid:21494 ppid:5820 task_flags:0x40050c flags:0x00080002
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
preempt_schedule_common+0x44/0xc0 kernel/sched/core.c:7113
preempt_schedule_thunk+0x16/0x30 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:1885 [inline]
zap_pmd_range mm/memory.c:1947 [inline]
zap_pud_range mm/memory.c:1976 [inline]
zap_p4d_range mm/memory.c:1997 [inline]
unmap_page_range+0xf71/0x41b0 mm/memory.c:2018
unmap_single_vma.constprop.0+0x153/0x240 mm/memory.c:2061
unmap_vmas+0x218/0x470 mm/memory.c:2105
exit_mmap+0x1b2/0xb90 mm/mmap.c:1280
__mmput+0x12a/0x410 kernel/fork.c:1133
mmput+0x62/0x70 kernel/fork.c:1156
exit_mm kernel/exit.c:582 [inline]
do_exit+0x7c7/0x2bf0 kernel/exit.c:954
do_group_exit+0xd3/0x2a0 kernel/exit.c:1107
get_signal+0x2671/0x26d0 kernel/signal.c:3034
arch_do_signal_or_restart+0x8f/0x790 arch/x86/kernel/signal.c:337
exit_to_user_mode_loop+0x85/0x130 kernel/entry/common.c:40
exit_to_user_mode_prepare include/linux/irq-entry-common.h:225 [inline]
syscall_exit_to_user_mode_work include/linux/entry-common.h:175 [inline]
syscall_exit_to_user_mode include/linux/entry-common.h:210 [inline]
do_syscall_64+0x426/0xfa0 arch/x86/entry/syscall_64.c:100
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7feaa47857d3
RSP: 002b:00007ffdf81b2a98 EFLAGS: 00000202 ORIG_RAX: 000000000000003d
RAX: fffffffffffffe00 RBX: 00000000000053fc RCX: 00007feaa47857d3
RDX: 0000000040000000 RSI: 00007ffdf81b2aac RDI: 00000000ffffffff
RBP: 00007ffdf81b2aac R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000202 R12: 0000000000000008
R13: 0000000000000003 R14: 00007ffdf81b2d98 R15: 0000000000000000
task:syz-executor state:R running task stack:23560 pid:21535 tgid:21535 ppid:21531 task_flags:0x400140 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7256
irqentry_exit+0x36/0x90 kernel/entry/common.c:211
asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697
RIP: 0010:__kasan_check_write+0xa/0x20 mm/kasan/shadow.c:37
Code: ff 66 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 0c 24 89 f6 01 00 00 00 e9 2c f0 ff ff 66 66 2e 0f 1f 84 00 00 00 00 00 90
RSP: 0018:ffffc90004eef6a8 EFLAGS: 00000293
RAX: 0000000000000000 RBX: ffff88801e808480 RCX: ffffffff822e14b3
RDX: ffff88802f59bc80 RSI: 0000000000000008 RDI: ffff88801e808480
RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000007640325 R11: 0000000000000001 R12: 0000000007640325
R13: 0000000000000008 R14: ffff88801e808488 R15: 0000000000000003
instrument_write include/linux/instrumented.h:40 [inline]
___clear_bit include/asm-generic/bitops/instrumented-non-atomic.h:44 [inline]
__update_page_owner_free_handle.constprop.0+0x183/0x4a0 mm/page_owner.c:279
__reset_page_owner+0x93/0x1a0 mm/page_owner.c:312
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1394 [inline]
__free_frozen_pages+0x7df/0x1160 mm/page_alloc.c:2906
discard_slab mm/slub.c:3330 [inline]
__put_partials+0x130/0x170 mm/slub.c:3876
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4d/0x120 mm/kasan/quarantine.c:179
kasan_quarantine_reduce+0x195/0x1e0 mm/kasan/quarantine.c:286
__kasan_slab_alloc+0x69/0x90 mm/kasan/common.c:352
kasan_slab_alloc include/linux/kasan.h:252 [inline]
slab_post_alloc_hook mm/slub.c:4978 [inline]
slab_alloc_node mm/slub.c:5288 [inline]
__do_kmalloc_node mm/slub.c:5649 [inline]
__kmalloc_node_noprof+0x2ff/0x8a0 mm/slub.c:5656
kmalloc_node_noprof include/linux/slab.h:987 [inline]
__vmalloc_area_node mm/vmalloc.c:3702 [inline]
__vmalloc_node_range_noprof+0x3e5/0x1480 mm/vmalloc.c:3897
__vmalloc_node_noprof+0xad/0xf0 mm/vmalloc.c:3960
alloc_counters net/ipv6/netfilter/ip6_tables.c:815 [inline]
copy_entries_to_user net/ipv6/netfilter/ip6_tables.c:837 [inline]
get_entries net/ipv6/netfilter/ip6_tables.c:1039 [inline]
do_ip6t_get_ctl+0x63f/0xa50 net/ipv6/netfilter/ip6_tables.c:1677
nf_getsockopt+0x7c/0xe0 net/netfilter/nf_sockopt.c:116
ipv6_getsockopt+0x1f7/0x280 net/ipv6/ipv6_sockglue.c:1473
tcp_getsockopt+0xa1/0x100 net/ipv4/tcp.c:4810
do_sock_getsockopt+0x34d/0x440 net/socket.c:2421
__sys_getsockopt+0x123/0x1b0 net/socket.c:2450
__do_sys_getsockopt net/socket.c:2457 [inline]
__se_sys_getsockopt net/socket.c:2454 [inline]
__x64_sys_getsockopt+0xbd/0x160 net/socket.c:2454
do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline]
do_syscall_64+0xcd/0xfa0 arch/x86/entry/syscall_64.c:94
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd849d9140a
RSP: 002b:00007ffef15a7df8 EFLAGS: 00000212 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007ffef15a7e80 RCX: 00007fd849d9140a
RDX: 0000000000000041 RSI: 0000000000000029 RDI: 0000000000000003
RBP: 0000000000000003 R08: 00007ffef15a7e1c R09: 0079746972756365
R10: 00007ffef15a7e80 R11: 0000000000000212 R12: 00007fd849fb3a20
R13: 00007ffef15a7e1c R14: 0000000000000000 R15: 00007fd849fb4e60
rcu: rcu_preempt kthread starved for 1254 jiffies! g125805 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:28552 pid:16 tgid:16 ppid:2 task_flags:0x208040 flags:0x00080000
Call Trace:
context_switch kernel/sched/core.c:5325 [inline]
__schedule+0x1190/0x5de0 kernel/sched/core.c:6929
__schedule_loop kernel/sched/core.c:7011 [inline]
schedule+0xe7/0x3a0 kernel/sched/core.c:7026
schedule_timeout+0x123/0x290 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1ea/0xaf0 kernel/rcu/tree.c:2083
rcu_gp_kthread+0x26d/0x380 kernel/rcu/tree.c:2285
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 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:
CPU: 1 UID: 0 PID: 3410 Comm: kworker/R-bat_e Tainted: G U syzkaller #0 PREEMPT(full)
Tainted: [U]=USER
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/25/2025
Workqueue: bat_events batadv_dat_purge
RIP: 0010:is_skb_forwardable+0x1b9/0x210 net/core/dev.c:2414
Code: c0 01 38 d0 7c 04 84 d2 75 4f 0f b7 5b 04 31 ff 89 de e8 ba 04 8e f8 66 85 db 41 0f 95 c5 e8 9e 09 8e f8 44 89 e8 5b 5d 41 5c <41> 5d c3 cc cc cc cc e8 0b b3 f5 f8 e9 73 fe ff ff e8 01 b3 f5 f8
RSP: 0018:ffffc90000a07cb0 EFLAGS: 00000246
RAX: 0000000000000001 RBX: ffff88808955b640 RCX: ffffffff892e4e31
RDX: ffff888030de0000 RSI: ffffffff892e4ee2 RDI: 0000000000000004
RBP: 1ffff92000140fa0 R08: 0000000000000004 R09: 00000000000005ee
R10: 0000000000000046 R11: 0000000000002b81 R12: dffffc0000000000
R13: 0000000000000001 R14: 0000000000000038 R15: ffff88808955b710
FS: 0000000000000000(0000) GS:ffff888124b0d000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007feaa5582f98 CR3: 000000008deaa000 CR4: 00000000003526f0
Call Trace:
br_dev_queue_push_xmit+0x9e/0x8a0 net/bridge/br_forward.c:36
br_nf_dev_queue_xmit+0x6e0/0x2b20 net/bridge/br_netfilter_hooks.c:920
NF_HOOK include/linux/netfilter.h:318 [inline]
NF_HOOK include/linux/netfilter.h:312 [inline]
br_nf_post_routing+0x8e7/0x1190 net/bridge/br_netfilter_hooks.c:966
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_slow+0xbe/0x200 net/netfilter/core.c:623
nf_hook+0x45e/0x780 include/linux/netfilter.h:273
NF_HOOK include/linux/netfilter.h:316 [inline]
br_forward_finish+0xcd/0x130 net/bridge/br_forward.c:66
br_nf_hook_thresh+0x307/0x410 net/bridge/br_netfilter_hooks.c:1167
br_nf_forward_finish+0x66a/0xba0 net/bridge/br_netfilter_hooks.c:662
NF_HOOK include/linux/netfilter.h:318 [inline]
NF_HOOK include/linux/netfilter.h:312 [inline]
br_nf_forward_ip.part.0+0x609/0x810 net/bridge/br_netfilter_hooks.c:716
br_nf_forward_ip net/bridge/br_netfilter_hooks.c:676 [inline]
br_nf_forward+0xf0f/0x1be0 net/bridge/br_netfilter_hooks.c:773
nf_hook_entry_hookfn include/linux/netfilter.h:158 [inline]
nf_hook_slow+0xbe/0x200 net/netfilter/core.c:623
nf_hook+0x45e/0x780 include/linux/netfilter.h:273
NF_HOOK include/linux/netfilter.h:316 [inline]
__br_forward+0x1be/0x5b0 net/bridge/br_forward.c:115
deliver_clone net/bridge/br_forward.c:131 [inline]
br_flood+0x39c/0x650 net/bridge/br_forward.c:250
br_handle_frame_finish+0x1117/0x1f00 net/bridge/br_input.c:229
br_nf_hook_thresh+0x307/0x410 net/bridge/br_netfilter_hooks.c:1167
br_nf_pre_routing_finish_ipv6+0x76a/0xfc0 net/bridge/br_netfilter_ipv6.c:154
NF_HOOK include/linux/netfilter.h:318 [inline]
br_nf_pre_routing_ipv6+0x3cd/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:158 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:291 [inline]
br_handle_frame+0xb28/0x14e0 net/bridge/br_input.c:442
__netif_receive_skb_core.constprop.0+0xa25/0x4bd0 net/core/dev.c:5966
__netif_receive_skb_one_core+0xb0/0x1e0 net/core/dev.c:6077
__netif_receive_skb+0x1d/0x160 net/core/dev.c:6192
process_backlog+0x439/0x15e0 net/core/dev.c:6544
__napi_poll.constprop.0+0xba/0x550 net/core/dev.c:7594
napi_poll net/core/dev.c:7657 [inline]
net_rx_action+0x97f/0xef0 net/core/dev.c:7784
handle_softirqs+0x219/0x8e0 kernel/softirq.c:622
do_softirq kernel/softirq.c:523 [inline]
do_softirq+0xb2/0xf0 kernel/softirq.c:510
__local_bh_enable_ip+0x100/0x120 kernel/softirq.c:450
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+0x9cf/0x1b70 kernel/workqueue.c:3263
process_scheduled_works kernel/workqueue.c:3346 [inline]
rescuer_thread+0x620/0xea0 kernel/workqueue.c:3523
kthread+0x3c5/0x780 kernel/kthread.c:463
ret_from_fork+0x675/0x7d0 arch/x86/kernel/process.c:158
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:245
net_ratelimit: 4659 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 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 veth0_to_bridge with own address as source address (addr:1e:68:cd:a8:b9:4a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:68:cd:a8:b9:4a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:68:cd:a8:b9:4a, 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 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 bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
net_ratelimit: 13695 callbacks suppressed
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 veth0_to_bridge with own address as source address (addr:1e:68:cd:a8:b9:4a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:68:cd:a8:b9:4a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:1e:68:cd:a8:b9:4a, 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 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 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)