bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on vlan2 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): P5204/1:b..l P27493/1:b..l
rcu: (detected by 1, t=10503 jiffies, g=212741, q=1526 ncpus=2)
task:syz-executor state:R running task stack:20704 pid:27493 tgid:27493 ppid:27463 flags:0x20000000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6693
preempt_schedule_irq+0xfb/0x1c0 kernel/sched/core.c:7015
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:__page_table_check_zero+0x10b/0x350 mm/page_table_check.c:153
Code: 9a 49 c1 ed 03 eb 0a 4c 03 25 a1 55 39 18 49 ff c7 83 7c 24 04 3f 0f 87 e6 00 00 00 e8 be 38 89 ff 4c 89 fd 44 89 f1 48 d3 ed <31> ff 48 89 ee e8 8b 3d 89 ff 48 85 ed 0f 85 e3 00 00 00 4d 85 e4
RSP: 0018:ffffc9000b7375d0 EFLAGS: 00000293
RAX: ffffffff820bb852 RBX: dffffc0000000000 RCX: 0000000000000000
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000040
RBP: 0000000000000000 R08: ffffffff820bb828 R09: 1ffffffff285b300
R10: dffffc0000000000 R11: fffffbfff285b301 R12: ffff88801d644eb0
R13: 1ffffffff348a1bc R14: 0000000000000000 R15: 0000000000000000
page_table_check_free include/linux/page_table_check.h:41 [inline]
free_pages_prepare mm/page_alloc.c:1128 [inline]
free_unref_page+0xe0e/0x1140 mm/page_alloc.c:2657
__slab_free+0x31b/0x3d0 mm/slub.c:4490
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:247 [inline]
slab_post_alloc_hook mm/slub.c:4085 [inline]
slab_alloc_node mm/slub.c:4134 [inline]
__do_kmalloc_node mm/slub.c:4263 [inline]
__kmalloc_noprof+0x1a6/0x400 mm/slub.c:4276
kmalloc_noprof include/linux/slab.h:882 [inline]
tomoyo_realpath_from_path+0xcf/0x5e0 security/tomoyo/realpath.c:251
tomoyo_get_realpath security/tomoyo/file.c:151 [inline]
tomoyo_path_perm+0x2b7/0x740 security/tomoyo/file.c:822
security_inode_getattr+0x130/0x330 security/security.c:2373
vfs_getattr+0x2a/0x3b0 fs/stat.c:243
vfs_statx_path fs/stat.c:283 [inline]
vfs_statx_fd fs/stat.c:314 [inline]
do_statx_fd+0x123/0x450 fs/stat.c:777
__do_sys_statx fs/stat.c:805 [inline]
__se_sys_statx+0x111/0x230 fs/stat.c:796
do_syscall_32_irqs_on arch/x86/entry/common.c:165 [inline]
__do_fast_syscall_32+0xb4/0x110 arch/x86/entry/common.c:386
do_fast_syscall_32+0x34/0x80 arch/x86/entry/common.c:411
entry_SYSENTER_compat_after_hwframe+0x84/0x8e
RIP: 0023:0xf741d579
RSP: 002b:00000000f756ea80 EFLAGS: 00000206 ORIG_RAX: 000000000000017f
RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00000000f731750a
RDX: 0000000000001800 RSI: 00000000000007ff RDI: 00000000f756eb3c
RBP: 00000000f756ec90 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
</TASK>
task:klogd state:R running task stack:23104 pid:5204 tgid:5204 ppid:1 flags:0x00004002
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6693
preempt_schedule_common+0x84/0xd0 kernel/sched/core.c:6872
preempt_schedule+0xe1/0xf0 kernel/sched/core.c:6896
preempt_schedule_thunk+0x1a/0x30 arch/x86/entry/thunk.S:12
__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:152 [inline]
_raw_spin_unlock_irqrestore+0x130/0x140 kernel/locking/spinlock.c:194
spin_unlock_irqrestore include/linux/spinlock.h:406 [inline]
__wake_up_common_lock+0x18c/0x1e0 kernel/sched/wait.c:108
sock_def_readable+0x20f/0x5b0 net/core/sock.c:3448
unix_dgram_sendmsg+0x1493/0x1f80 net/unix/af_unix.c:2167
sock_sendmsg_nosec net/socket.c:711 [inline]
__sock_sendmsg+0x221/0x270 net/socket.c:726
__sys_sendto+0x363/0x4c0 net/socket.c:2195
__do_sys_sendto net/socket.c:2202 [inline]
__se_sys_sendto net/socket.c:2198 [inline]
__x64_sys_sendto+0xde/0x100 net/socket.c:2198
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: 0033:0x7f085844b9b5
RSP: 002b:00007ffc80b7b928 EFLAGS: 00000246 ORIG_RAX: 000000000000002c
RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f085844b9b5
RDX: 0000000000000094 RSI: 00005649bfee7f40 RDI: 0000000000000003
RBP: 00005649bfedf910 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000004000 R11: 0000000000000246 R12: 0000000000000013
R13: 00007f08585d9212 R14: 00007ffc80b7ba28 R15: 0000000000000000
</TASK>
rcu: rcu_preempt kthread starved for 10399 jiffies! g212741 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:25072 pid:17 tgid:17 ppid:2 flags:0x00004000
Call Trace:
<TASK>
context_switch kernel/sched/core.c:5328 [inline]
__schedule+0x184f/0x4c30 kernel/sched/core.c:6693
__schedule_loop kernel/sched/core.c:6770 [inline]
schedule+0x14b/0x320 kernel/sched/core.c:6785
schedule_timeout+0x1be/0x310 kernel/time/timer.c:2615
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
</TASK>
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 6.12.0-syzkaller-00239-gc6d64479d609 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/30/2024
RIP: 0010:preempt_count_sub+0x105/0x170 kernel/sched/core.c:5823
Code: 19 90 48 c7 c7 a0 5a 0a 8c 48 c7 c6 80 5b 0a 8c e8 90 9f f2 ff 90 0f 0b 90 90 90 e9 6b ff ff ff 48 c7 c1 40 09 3e 9a 80 e1 07 <80> c1 03 38 c1 0f 8c 1b ff ff ff 48 c7 c7 40 09 3e 9a e8 74 96 9b
RSP: 0018:ffffc90000157088 EFLAGS: 00000046
RAX: 0000000000000004 RBX: 0000000000000001 RCX: ffffffff9a3e0900
RDX: 0000000000000000 RSI: ffffffff8c6119e0 RDI: 0000000000000001
RBP: ffffc90000157150 R08: ffffffff901d5d6f R09: 1ffffffff203abad
R10: dffffc0000000000 R11: fffffbfff203abae R12: dffffc0000000000
R13: 1ffff9200002ae1c R14: dffffc0000000000 R15: 0000000000000201
FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000f74fed3c CR3: 000000005f80e000 CR4: 00000000003526f0
Call Trace:
<NMI>
</NMI>
<TASK>
__local_bh_enable_ip+0x163/0x200 kernel/softirq.c:385
ebt_do_table+0x2840/0x2a40
nf_hook_entry_hookfn include/linux/netfilter.h:154 [inline]
nf_hook_bridge_pre net/bridge/br_input.c:277 [inline]
br_handle_frame+0x9fd/0x1530 net/bridge/br_input.c:424
__netif_receive_skb_core+0x13e8/0x4570 net/core/dev.c:5564
__netif_receive_skb_one_core net/core/dev.c:5668 [inline]
__netif_receive_skb+0x12f/0x650 net/core/dev.c:5783
process_backlog+0x662/0x15b0 net/core/dev.c:6115
__napi_poll+0xcb/0x490 net/core/dev.c:6779
napi_poll net/core/dev.c:6848 [inline]
net_rx_action+0x89b/0x1240 net/core/dev.c:6970
handle_softirqs+0x2c5/0x980 kernel/softirq.c:554
run_ksoftirqd+0xca/0x130 kernel/softirq.c:927
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
</TASK>
net_ratelimit: 25045 callbacks suppressed
ICMPv6: NA: aa:aa:aa:aa:aa:1b advertised our address fe80::a8aa:aaff:feaa:aa1b on veth0_to_bridge!
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on vlan3 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
ICMPv6: NA: aa:aa:aa:aa:aa:1b advertised our address fe80::a8aa:aaff:feaa:aa1b on veth0_to_bridge!
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
ICMPv6: NA: aa:aa:aa:aa:aa:1b advertised our address fe80::a8aa:aaff:feaa:aa1b on veth0_to_bridge!
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
net_ratelimit: 27314 callbacks suppressed
ICMPv6: NA: aa:aa:aa:aa:aa:1b advertised our address fe80::a8aa:aaff:feaa:aa1b on veth0_to_bridge!
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on vlan3 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
ICMPv6: NA: aa:aa:aa:aa:aa:1b advertised our address fe80::a8aa:aaff:feaa:aa1b on veth0_to_bridge!
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)
ICMPv6: NA: aa:aa:aa:aa:aa:1b advertised our address fe80::a8aa:aaff:feaa:aa1b on veth0_to_bridge!
bridge0: received packet on vlan2 with own address as source address (addr:aa:aa:aa:aa:aa:1b, vlan:0)