bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
rcu: INFO: rcu_preempt detected stalls on CPUs/tasks:
rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P5827/1:b..l P7826/1:b..l
rcu: (detected by 0, t=10502 jiffies, g=13909, q=1282 ncpus=2)
task:syz.0.488 state:R running task stack:25264 pid:7826 tgid:7822 ppid:5836 flags:0x00004006
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 kernel/sched/core.c:6756
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6935
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6959
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
unwind_next_frame+0x18f8/0x22d0 arch/x86/kernel/unwind_orc.c:672
arch_stack_walk+0x11c/0x150 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x118/0x1d0 kernel/stacktrace.c:122
save_stack+0xfb/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x76/0x430 mm/page_owner.c:297
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xd3f/0x1010 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]
__do_kmalloc_node mm/slub.c:4297 [inline]
__kmalloc_node_track_caller_noprof+0x237/0x4c0 mm/slub.c:4317
__kmemdup_nul mm/util.c:61 [inline]
kstrdup+0x39/0xb0 mm/util.c:81
__kernfs_new_node+0x9d/0x870 fs/kernfs/dir.c:620
kernfs_new_node+0x137/0x240 fs/kernfs/dir.c:700
__kernfs_create_file+0x49/0x2e0 fs/kernfs/file.c:1034
sysfs_add_file_mode_ns+0x24a/0x310 fs/sysfs/file.c:313
create_files fs/sysfs/group.c:76 [inline]
internal_create_group+0x782/0x12d0 fs/sysfs/group.c:183
internal_create_groups fs/sysfs/group.c:223 [inline]
sysfs_create_groups+0x56/0x120 fs/sysfs/group.c:249
setup_gid_attrs drivers/infiniband/core/sysfs.c:1173 [inline]
ib_setup_port_attrs+0x16a4/0x2440 drivers/infiniband/core/sysfs.c:1450
add_one_compat_dev+0x51a/0x710 drivers/infiniband/core/device.c:976
rdma_dev_init_net+0x1f1/0x280 drivers/infiniband/core/device.c:1192
ops_init+0x31e/0x590 net/core/net_namespace.c:138
setup_net+0x287/0x9e0 net/core/net_namespace.c:362
copy_net_ns+0x33f/0x570 net/core/net_namespace.c:516
create_new_namespaces+0x425/0x7b0 kernel/nsproxy.c:110
unshare_nsproxy_namespaces+0x124/0x180 kernel/nsproxy.c:228
ksys_unshare+0x57d/0xa70 kernel/fork.c:3333
__do_sys_unshare kernel/fork.c:3404 [inline]
__se_sys_unshare kernel/fork.c:3402 [inline]
__x64_sys_unshare+0x38/0x40 kernel/fork.c:3402
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: 0033:0x7f273a985d29
RSP: 002b:00007f273b7e6038 EFLAGS: 00000246 ORIG_RAX: 0000000000000110
RAX: ffffffffffffffda RBX: 00007f273ab76080 RCX: 00007f273a985d29
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000062040200
RBP: 00007f273aa01b08 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f273ab76080 R15: 00007ffc3e497b18
task:syz-executor state:R running task stack:19792 pid:5827 tgid:5827 ppid:5825 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 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:debug_lockdep_rcu_enabled+0xd/0x40 kernel/rcu/update.c:320
Code: f5 90 0f 0b 90 90 90 eb c6 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 31 c0 83 3d b7 8b 4d 04 00 <74> 1e 83 3d 5a bd 4d 04 00 74 15 65 48 8b 0c 25 c0 d5 03 00 31 c0
RSP: 0018:ffffc900041f79d8 EFLAGS: 00000202
RAX: 0000000000000000 RBX: ffffea0000d29dc0 RCX: ffffffff817ac034
RDX: 0000000000000000 RSI: ffffffff8c5fb200 RDI: ffffffff8c5fb1c0
RBP: ffffea0000d29dc0 R08: ffffffff901a5c77 R09: 1ffffffff2034b8e
R10: dffffc0000000000 R11: fffffbfff2034b8f R12: ffffea0000d29dc8
R13: 0000000000000000 R14: ffffffff821174f0 R15: dffffc0000000000
rcu_read_lock include/linux/rcupdate.h:850 [inline]
page_ext_get+0x46/0x2a0 mm/page_ext.c:525
__reset_page_owner+0x30/0x430 mm/page_owner.c:290
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0xd3f/0x1010 mm/page_alloc.c:2659
__slab_free+0x2c2/0x380 mm/slub.c:4524
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_lru_noprof+0x1dd/0x390 mm/slub.c:4187
__d_alloc+0x31/0x700 fs/dcache.c:1646
d_alloc_pseudo+0x1f/0xb0 fs/dcache.c:1778
alloc_path_pseudo fs/file_table.c:356 [inline]
alloc_file_pseudo+0x123/0x290 fs/file_table.c:372
sock_alloc_file+0xb8/0x280 net/socket.c:470
sock_map_fd net/socket.c:495 [inline]
__sys_socket+0x1dd/0x3c0 net/socket.c:1694
__do_sys_socket net/socket.c:1699 [inline]
__se_sys_socket net/socket.c:1697 [inline]
__x64_sys_socket+0x7a/0x90 net/socket.c:1697
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: 0033:0x7fea87587c47
RSP: 002b:00007ffdd1b3cf88 EFLAGS: 00000206 ORIG_RAX: 0000000000000029
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fea87587c47
RDX: 0000000000000006 RSI: 0000000000000001 RDI: 0000000000000002
RBP: 00007ffdd1b3d66c R08: 00007ffdd1b3cf7c R09: 00007ffdd1b3d387
R10: 00007ffdd1b3d000 R11: 0000000000000206 R12: 0000000000000063
R13: 000000000001f456 R14: 00007ffdd1b3d6c0 R15: 0000000000000066
rcu: rcu_preempt kthread starved for 5930 jiffies! g13909 f0x0 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:26264 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0x1850/0x4c30 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: 0 UID: 0 PID: 5880 Comm: kworker/0:5 Not tainted 6.13.0-rc7-syzkaller-01160-g41c5d104f338 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
Workqueue: events send_dm_alert
RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
RIP: 0010:_raw_spin_unlock_irqrestore+0xd8/0x140 kernel/locking/spinlock.c:194
Code: 9c 8f 44 24 20 42 80 3c 23 00 74 08 4c 89 f7 e8 ee 5f 36 f6 f6 44 24 21 02 75 52 41 f7 c7 00 02 00 00 74 01 fb bf 01 00 00 00 43 06 9e f5 65 8b 05 74 48 34 74 85 c0 74 43 48 c7 04 24 0e 36
RSP: 0018:ffffc90004d275c0 EFLAGS: 00000206
RAX: 8c73557e05ab8900 RBX: 1ffff920009a4ebc RCX: ffffffff81a73b8c
RDX: dffffc0000000000 RSI: ffffffff8c5fb200 RDI: 0000000000000001
RBP: ffffc90004d27650 R08: ffffffff901a5c77 R09: 1ffffffff2034b8e
R10: dffffc0000000000 R11: fffffbfff2034b8f R12: dffffc0000000000
R13: 1ffff920009a4eb8 R14: ffffc90004d275e0 R15: 0000000000000246
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffef6eac7dc CR3: 0000000064fca000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
free_unref_page_commit+0x582/0x1140 mm/page_alloc.c:2634
free_unref_page+0x711/0x1010 mm/page_alloc.c:2682
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_kmalloc+0x23/0xb0 mm/kasan/common.c:385
kasan_kmalloc include/linux/kasan.h:260 [inline]
__do_kmalloc_node mm/slub.c:4298 [inline]
__kmalloc_node_track_caller_noprof+0x28b/0x4c0 mm/slub.c:4317
kmalloc_reserve+0x111/0x2a0 net/core/skbuff.c:609
__alloc_skb+0x1f3/0x440 net/core/skbuff.c:678
alloc_skb include/linux/skbuff.h:1331 [inline]
nlmsg_new include/net/netlink.h:1018 [inline]
genlmsg_new include/net/genetlink.h:611 [inline]
reset_per_cpu_data+0x28/0x210 net/core/drop_monitor.c:146
send_dm_alert+0x21/0xf0 net/core/drop_monitor.c:197
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
net_ratelimit: 33699 callbacks suppressed
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: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)
net_ratelimit: 42632 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: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:1b, vlan:0)