bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P17006/1:b..l P5810/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=94457, q=107 ncpus=2)
task:syz-executor state:R running task stack:20184 pid:5810 tgid:5810 ppid:5808 flags:0x00000002
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 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+0x264/0x550 kernel/locking/lockdep.c:5853
Code: 2b 00 74 08 4c 89 f7 e8 6a 99 88 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc90003eff820 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff920007dff10 RCX: ffff88807ab646d8
RDX: dffffc0000000000 RSI: ffffffff8c0aaa40 RDI: ffffffff8c5edde0
RBP: ffffc90003eff980 R08: ffffffff94271887 R09: 1ffffffff284e310
R10: dffffc0000000000 R11: fffffbfff284e311 R12: 1ffff920007dff0c
R13: dffffc0000000000 R14: ffffc90003eff880 R15: 0000000000000246
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+0xd40/0x1000 mm/page_alloc.c:2659
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]
kmem_cache_alloc_noprof+0x1d9/0x380 mm/slub.c:4175
lsm_inode_alloc security/security.c:755 [inline]
security_inode_alloc+0x37/0x310 security/security.c:1691
inode_init_always_gfp+0xa0f/0xd90 fs/inode.c:306
inode_init_always include/linux/fs.h:3121 [inline]
alloc_inode+0x9f/0x1a0 fs/inode.c:343
get_pipe_inode fs/pipe.c:882 [inline]
create_pipe_files+0x50/0x700 fs/pipe.c:922
__do_pipe_flags+0x48/0x2d0 fs/pipe.c:973
do_pipe2+0xd4/0x310 fs/pipe.c:1024
__do_sys_pipe2 fs/pipe.c:1042 [inline]
__se_sys_pipe2 fs/pipe.c:1040 [inline]
__x64_sys_pipe2+0x5a/0x70 fs/pipe.c:1040
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: 0033:0x7f3714f84a49
RSP: 002b:00007ffe8c1702a8 EFLAGS: 00000246 ORIG_RAX: 0000000000000125
RAX: ffffffffffffffda RBX: 000055556817d730 RCX: 00007f3714f84a49
RDX: 0000000000000005 RSI: 0000000000000000 RDI: 00007ffe8c1702c8
RBP: 00007ffe8c170670 R08: 0000000000000007 R09: 0000555568184e10
R10: 83cf75522add6411 R11: 0000000000000246 R12: 00007ffe8c1706d0
R13: 000055556817ce90 R14: 00007ffe8c1703f0 R15: 000055556817c730
task:kworker/u8:1 state:R running task stack:20752 pid:17006 tgid:17006 ppid:2 flags:0x00004000
Workqueue: writeback wb_workfn (flush-8:0)
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 kernel/sched/core.c:6756
preempt_schedule_notrace+0x100/0x140 kernel/sched/core.c:7028
preempt_schedule_notrace_thunk+0x1a/0x30 arch/x86/entry/thunk.S:13
rcu_is_watching+0x7e/0xb0 kernel/rcu/tree.c:738
rcu_read_unlock include/linux/rcupdate.h:878 [inline]
blk_mq_run_hw_queue+0x42d/0x500 block/blk-mq.c:2352
blk_mq_flush_plug_list+0x118e/0x1870 block/blk-mq.c:2913
blk_add_rq_to_plug+0x1ad/0x4b0 block/blk-mq.c:1382
blk_mq_submit_bio+0xf74/0x2390 block/blk-mq.c:3146
__submit_bio+0x2c6/0x560 block/blk-core.c:629
__submit_bio_noacct_mq block/blk-core.c:710 [inline]
submit_bio_noacct_nocheck+0x4d3/0xe30 block/blk-core.c:739
ext4_io_submit fs/ext4/page-io.c:377 [inline]
io_submit_add_bh fs/ext4/page-io.c:418 [inline]
ext4_bio_write_folio+0x115f/0x1ae0 fs/ext4/page-io.c:562
mpage_submit_folio+0x27e/0x340 fs/ext4/inode.c:1932
mpage_process_page_bufs+0x6d1/0x9d0 fs/ext4/inode.c:2045
mpage_prepare_extent_to_map+0xecb/0x1860 fs/ext4/inode.c:2546
ext4_do_writepages+0xc2a/0x3df0 fs/ext4/inode.c:2688
ext4_writepages+0x213/0x3c0 fs/ext4/inode.c:2824
do_writepages+0x35f/0x880 mm/page-writeback.c:2702
__writeback_single_inode+0x14f/0x10d0 fs/fs-writeback.c:1680
writeback_sb_inodes+0x820/0x1360 fs/fs-writeback.c:1976
__writeback_inodes_wb+0x11b/0x260 fs/fs-writeback.c:2047
wb_writeback+0x427/0xb80 fs/fs-writeback.c:2158
wb_check_old_data_flush fs/fs-writeback.c:2262 [inline]
wb_do_writeback fs/fs-writeback.c:2315 [inline]
wb_workfn+0xb94/0x1080 fs/fs-writeback.c:2343
process_one_work kernel/workqueue.c:3236 [inline]
process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3317
worker_thread+0x870/0xd30 kernel/workqueue.c:3398
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: rcu_preempt kthread starved for 10581 jiffies! g94457 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:25976 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x17fb/0x4be0 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:
CPU: 1 UID: 0 PID: 24 Comm: ksoftirqd/1 Not tainted 6.13.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:lock_acquire+0x264/0x550 kernel/locking/lockdep.c:5853
Code: 2b 00 74 08 4c 89 f7 e8 6a 99 88 00 f6 44 24 61 02 0f 85 85 01 00 00 41 f7 c7 00 02 00 00 74 01 fb 48 c7 44 24 40 0e 36 e0 45 <4b> c7 44 25 00 00 00 00 00 43 c7 44 25 09 00 00 00 00 43 c7 44 25
RSP: 0018:ffffc900001e6cc0 EFLAGS: 00000206
RAX: 0000000000000001 RBX: 1ffff9200003cda4 RCX: ffff88801d2d8ad8
RDX: dffffc0000000000 RSI: ffffffff8c0aaa40 RDI: ffffffff8c5edde0
RBP: ffffc900001e6e08 R08: ffffffff94271887 R09: 1ffffffff284e310
R10: dffffc0000000000 R11: fffffbfff284e311 R12: 1ffff9200003cda0
R13: dffffc0000000000 R14: ffffc900001e6d20 R15: 0000000000000246
FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f370f800218 CR3: 000000000e736000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
rcu_lock_acquire include/linux/rcupdate.h:337 [inline]
rcu_read_lock include/linux/rcupdate.h:849 [inline]
net_generic+0x3c/0x240 include/net/netns/generic.h:45
is_vlan_ipv6 net/bridge/br_netfilter_hooks.c:101 [inline]
br_nf_forward+0x470/0x18b0 net/bridge/br_netfilter_hooks.c:802
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xc3/0x220 net/netfilter/core.c:626
nf_hook include/linux/netfilter.h:269 [inline]
NF_HOOK+0x2a7/0x460 include/linux/netfilter.h:312
__br_forward+0x489/0x660 net/bridge/br_forward.c:115
br_handle_frame_finish+0x18ba/0x1fe0 net/bridge/br_input.c:215
nf_hook_bridge_pre net/bridge/br_input.c:299 [inline]
br_handle_frame+0xbf8/0x1530 net/bridge/br_input.c:424
__netif_receive_skb_core+0x14eb/0x4690 net/core/dev.c:5598
__netif_receive_skb_one_core net/core/dev.c:5702 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5817
process_backlog+0x662/0x15b0 net/core/dev.c:6149
__napi_poll+0xcb/0x490 net/core/dev.c:6902
napi_poll net/core/dev.c:6971 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:7093
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: 5641 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
net_ratelimit: 8050 callbacks suppressed
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:e2:16:c0:a2:e1:11, vlan:0)