bridge0: received packet on veth0_to_bridge with own address as source address (addr:5a:74:32:33:a6:1a, vlan:0)
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): P2/1:b..l P6409/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=46689, q=669 ncpus=2)
task:syz-executor state:R running task stack:22688 pid:6409 tgid:6409 ppid:6392 flags:0x00000000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7078
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:__sanitizer_cov_trace_pc+0x0/0x70 kernel/kcov.c:210
Code: 7e 60 e8 a3 ff ff ff 31 c0 c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1e fa 65 48 8b 15 54 b4 69 7e 65 8b 05 55 b4 69 7e a9 00 01
RSP: 0018:ffffc900058f7888 EFLAGS: 00000286
RAX: ffff88801de4cd90 RBX: ffff88801de4cd90 RCX: ffffffff82086b14
RDX: ffff888021bb4880 RSI: ffffffff82086b30 RDI: 0000000000000007
RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000001 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
page_ext_data include/linux/page_ext.h:86 [inline]
get_page_owner mm/page_owner.c:143 [inline]
__reset_page_owner+0x48/0x400 mm/page_owner.c:294
reset_page_owner include/linux/page_owner.h:25 [inline]
free_pages_prepare mm/page_alloc.c:1127 [inline]
free_unref_page+0x661/0x1080 mm/page_alloc.c:2659
__put_partials+0x14c/0x170 mm/slub.c:3157
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/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: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+0x226/0x3d0 mm/slub.c:4175
alloc_empty_file+0x73/0x1e0 fs/file_table.c:228
path_openat+0xe1/0x2d60 fs/namei.c:3973
do_filp_open+0x20c/0x470 fs/namei.c:4014
do_sys_openat2+0x17a/0x1e0 fs/open.c:1402
do_sys_open fs/open.c:1417 [inline]
__do_sys_openat fs/open.c:1433 [inline]
__se_sys_openat fs/open.c:1428 [inline]
__x64_sys_openat+0x175/0x210 fs/open.c:1428
do_syscall_x64 arch/x86/entry/common.c:52 [inline]
do_syscall_64+0xcd/0x250 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f04fcd84690
RSP: 002b:00007ffed8d11120 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f04fcd84690
RDX: 0000000000000002 RSI: 00007ffed8d11220 RDI: 00000000ffffff9c
RBP: 00007ffed8d11220 R08: 0000000000000000 R09: 00007ffed8d10ee7
R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000041
R13: 000000000004c642 R14: 00007ffed8d11220 R15: 0000000000000354
task:kthreadd state:R running task stack:26384 pid:2 tgid:2 ppid:0 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7078
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:unwind_next_frame+0x4c/0x20c0 arch/x86/kernel/unwind_orc.c:682
Code: 48 83 ec 38 0f b6 04 02 84 c0 74 08 3c 03 0f 8e 48 0a 00 00 41 8b 5d 00 85 db 75 15 31 c0 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e <41> 5f c3 cc cc cc cc 49 8d 6d 48 48 b8 00 00 00 00 00 fc ff df 48
RSP: 0018:ffffc90000077500 EFLAGS: 00000286
RAX: 0000000000000001 RBX: ffffc90000077510 RCX: 0000000000000000
RDX: 0000000000000001 RSI: ffffc90000077840 RDI: 0000000000000001
RBP: ffffc900000775a0 R08: ffffc90000077544 R09: ffffffff90ff2f2e
R10: ffffc90000077510 R11: 000000000000f20e R12: ffffffff8185e450
R13: ffffc900000775d0 R14: 0000000000000000 R15: ffffc90000077868
arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
save_stack+0x162/0x1f0 mm/page_owner.c:156
__reset_page_owner+0x8d/0x400 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+0x661/0x1080 mm/page_alloc.c:2659
__put_partials+0x14c/0x170 mm/slub.c:3157
qlink_free mm/kasan/quarantine.c:163 [inline]
qlist_free_all+0x4e/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: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_noprof+0x1cd/0x510 mm/slub.c:4310
kmalloc_noprof include/linux/slab.h:905 [inline]
kzalloc_noprof include/linux/slab.h:1037 [inline]
lsm_blob_alloc+0x68/0x90 security/security.c:684
lsm_cred_alloc security/security.c:701 [inline]
security_prepare_creds+0x30/0x270 security/security.c:3232
prepare_creds+0x540/0x750 kernel/cred.c:242
copy_creds+0xa7/0xa50 kernel/cred.c:312
copy_process+0x10b2/0x8e50 kernel/fork.c:2258
kernel_clone+0xfd/0x960 kernel/fork.c:2806
kernel_thread+0xc0/0x100 kernel/fork.c:2868
create_kthread kernel/kthread.c:412 [inline]
kthreadd+0x4ef/0x7d0 kernel/kthread.c:767
ret_from_fork+0x45/0x80 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 10573 jiffies! g46689 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:27600 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
context_switch kernel/sched/core.c:5369 [inline]
__schedule+0xe58/0x5ad0 kernel/sched/core.c:6756
__schedule_loop kernel/sched/core.c:6833 [inline]
schedule+0xe7/0x350 kernel/sched/core.c:6848
schedule_timeout+0x124/0x280 kernel/time/sleep_timeout.c:99
rcu_gp_fqs_loop+0x1eb/0xb00 kernel/rcu/tree.c:2045
rcu_gp_kthread+0x271/0x380 kernel/rcu/tree.c:2247
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 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:
Sending NMI from CPU 1 to CPUs 0:
NMI backtrace for cpu 0
CPU: 0 UID: 0 PID: 16 Comm: ksoftirqd/0 Not tainted 6.13.0-rc7-syzkaller-00043-g619f0b6fad52 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024
RIP: 0010:__orc_find+0x89/0xf0 arch/x86/kernel/unwind_orc.c:102
Code: fa 48 8d 5c 95 00 48 89 da 48 c1 ea 03 0f b6 34 0a 48 89 da 83 e2 07 83 c2 03 40 38 f2 7c 05 40 84 f6 75 4b 48 63 13 48 01 da <49> 39 d5 73 af 4c 8d 63 fc 49 39 ec 73 b2 4d 29 f7 49 c1 ff 02 4b
RSP: 0018:ffffc90000156b08 EFLAGS: 00000293
RAX: ffffffff9180c6bc RBX: ffffffff90cf3034 RCX: dffffc0000000000
RDX: ffffffff89064d10 RSI: 0000000000000000 RDI: ffffffff90cf3020
RBP: ffffffff90cf3030 R08: ffffffff9180c6ec R09: ffffffff90ff34ce
R10: ffffc90000156bb8 R11: 000000000008064d R12: ffffffff90cf303c
R13: ffffffff89064df7 R14: ffffffff90cf3020 R15: ffffffff90cf302c
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffcd59b5f68 CR3: 0000000035682000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
orc_find arch/x86/kernel/unwind_orc.c:227 [inline]
unwind_next_frame+0x2be/0x20c0 arch/x86/kernel/unwind_orc.c:494
arch_stack_walk+0x95/0x100 arch/x86/kernel/stacktrace.c:25
stack_trace_save+0x95/0xd0 kernel/stacktrace.c:122
kasan_save_stack+0x33/0x60 mm/kasan/common.c:47
kasan_save_track+0x14/0x30 mm/kasan/common.c:68
unpoison_slab_object mm/kasan/common.c:319 [inline]
__kasan_slab_alloc+0x89/0x90 mm/kasan/common.c:345
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+0x226/0x3d0 mm/slub.c:4175
skb_ext_maybe_cow net/core/skbuff.c:6942 [inline]
skb_ext_add+0xf8/0x770 net/core/skbuff.c:7016
nf_bridge_unshare net/bridge/br_netfilter_hooks.c:169 [inline]
br_nf_forward_ip.part.0+0x28/0x820 net/bridge/br_netfilter_hooks.c:712
br_nf_forward_ip net/bridge/br_netfilter_hooks.c:707 [inline]
br_nf_forward+0xd9c/0x1bd0 net/bridge/br_netfilter_hooks.c:801
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_slow+0xbb/0x200 net/netfilter/core.c:626
nf_hook+0x474/0x7d0 include/linux/netfilter.h:269
NF_HOOK include/linux/netfilter.h:312 [inline]
__br_forward+0x1be/0x5b0 net/bridge/br_forward.c:115
deliver_clone+0x5b/0xa0 net/bridge/br_forward.c:131
br_flood+0x493/0x5c0 net/bridge/br_forward.c:245
br_handle_frame_finish+0xda5/0x1c80 net/bridge/br_input.c:215
br_nf_hook_thresh+0x303/0x410 net/bridge/br_netfilter_hooks.c:1198
br_nf_pre_routing_finish+0xb03/0x1cb0 net/bridge/br_netfilter_hooks.c:453
NF_HOOK include/linux/netfilter.h:314 [inline]
NF_HOOK include/linux/netfilter.h:308 [inline]
br_nf_pre_routing+0xf7b/0x15b0 net/bridge/br_netfilter_hooks.c:562
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
br_handle_frame+0x9eb/0x1490 net/bridge/br_input.c:424
__netif_receive_skb_core.constprop.0+0xa76/0x4470 net/core/dev.c:5598
__netif_receive_skb_one_core+0xb1/0x1e0 net/core/dev.c:5702
__netif_receive_skb+0x1d/0x160 net/core/dev.c:5817
process_backlog+0x443/0x15f0 net/core/dev.c:6149
__napi_poll.constprop.0+0xb7/0x550 net/core/dev.c:6902
napi_poll net/core/dev.c:6971 [inline]
net_rx_action+0xa94/0x1010 net/core/dev.c:7093
handle_softirqs+0x213/0x8f0 kernel/softirq.c:561
run_ksoftirqd kernel/softirq.c:950 [inline]
run_ksoftirqd+0x3a/0x60 kernel/softirq.c:942
smpboot_thread_fn+0x661/0xa30 kernel/smpboot.c:164
kthread+0x2c1/0x3a0 kernel/kthread.c:389
ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147
ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244
net_ratelimit: 10460 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 veth0_to_bridge with own address as source address (addr:5a:74:32:33:a6:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:5a:74:32:33:a6:1a, 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:5a:74:32:33:a6:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:5a:74:32:33:a6:1a, 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: 15410 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 veth0_to_bridge with own address as source address (addr:5a:74:32:33:a6:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:5a:74:32:33:a6:1a, 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:5a:74:32:33:a6:1a, vlan:0)
bridge0: received packet on veth0_to_bridge with own address as source address (addr:5a:74:32:33:a6:1a, vlan:0)
bridge0: received packet on bridge_slave_0 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)