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) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P20735/1:b..l rcu: (detected by 0, t=10502 jiffies, g=137877, q=656 ncpus=1) task:syz.6.2974 state:R running task stack:27552 pid:20735 tgid:20728 ppid:16354 task_flags:0x400040 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5256 [inline] __schedule+0x1139/0x6150 kernel/sched/core.c:6863 preempt_schedule_irq+0x51/0x90 kernel/sched/core.c:7190 irqentry_exit+0x1d8/0x8c0 kernel/entry/common.c:216 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:__page_table_check_zero+0x20f/0x4a0 mm/page_table_check.c:143 Code: 89 d8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 68 02 00 00 44 8b 2b 31 ff 44 89 ee e8 2a be 8a ff 45 85 ed 0f 85 2e 01 00 00 7c c3 8a ff 4c 8d 6b 04 be 04 00 00 00 4c 89 ef e8 5b ad f3 ff RSP: 0018:ffffc9000bc5f178 EFLAGS: 00000246 RAX: 0000000000000002 RBX: ffff88801cd940f8 RCX: ffffffff82339516 RDX: ffff888035db3d00 RSI: 0000000000000000 RDI: 0000000000000005 RBP: 0000000000000000 R08: 0000000000000005 R09: 0000000000000000 R10: 0000000000000000 R11: ffff888035db4830 R12: ffff88801cd940b0 R13: 0000000000000000 R14: 0000000000000000 R15: dffffc0000000000 page_table_check_alloc include/linux/page_table_check.h:35 [inline] post_alloc_hook+0x19e/0x220 mm/page_alloc.c:1847 prep_new_page mm/page_alloc.c:1854 [inline] get_page_from_freelist+0xd0b/0x31a0 mm/page_alloc.c:3915 __alloc_frozen_pages_noprof+0x25f/0x2430 mm/page_alloc.c:5210 __alloc_pages_noprof mm/page_alloc.c:5244 [inline] alloc_pages_bulk_noprof+0x77a/0x1410 mm/page_alloc.c:5164 ___alloc_pages_bulk mm/kasan/shadow.c:345 [inline] __kasan_populate_vmalloc_do mm/kasan/shadow.c:370 [inline] __kasan_populate_vmalloc+0xfb/0x220 mm/kasan/shadow.c:424 kasan_populate_vmalloc include/linux/kasan.h:579 [inline] alloc_vmap_area+0x98d/0x2a50 mm/vmalloc.c:2124 __get_vm_area_node+0x1ca/0x330 mm/vmalloc.c:3219 get_vm_area_caller+0x71/0xa0 mm/vmalloc.c:3270 vmap+0x135/0x320 mm/vmalloc.c:3542 relay_alloc_buf kernel/relay.c:127 [inline] relay_create_buf kernel/relay.c:162 [inline] relay_open_buf.part.0+0x445/0xc40 kernel/relay.c:390 relay_open_buf kernel/relay.c:538 [inline] relay_open+0x653/0xad0 kernel/relay.c:519 blk_trace_setup_prepare+0x38e/0x700 kernel/trace/blktrace.c:716 blk_trace_setup+0x1c5/0x3b0 kernel/trace/blktrace.c:789 blk_trace_ioctl+0x2ce/0x300 kernel/trace/blktrace.c:935 blkdev_ioctl+0x1fa/0x6e0 block/ioctl.c:781 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __x64_sys_ioctl+0x18e/0x210 fs/ioctl.c:583 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xcd/0xf80 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f188b98f7c9 RSP: 002b:00007f188c766038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f188bbe6270 RCX: 00007f188b98f7c9 RDX: 0000200000000240 RSI: 00000000c0481273 RDI: 0000000000000003 RBP: 00007f188ba13f91 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f188bbe6308 R14: 00007f188bbe6270 R15: 00007ffc328993d8 net_ratelimit: 7106 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: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) 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: 7661 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: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) 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)