bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) rcu: INFO: rcu_preempt detected stalls on CPUs/tasks: rcu: Tasks blocked on level-0 rcu_node (CPUs 0-1): P16974/1:b..l P19061/1:b..l rcu: (detected by 0, t=10503 jiffies, g=85825, q=2217 ncpus=2) task:syz.0.3495 state:R running task stack:25624 pid:19061 tgid:19060 ppid:17994 task_flags:0x400140 flags:0x00080002 Call Trace: context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1821/0x5740 kernel/sched/core.c:7189 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x8b0 kernel/entry/common.c:164 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:on_stack arch/x86/include/asm/stacktrace.h:60 [inline] RIP: 0010:stack_access_ok arch/x86/kernel/unwind_orc.c:409 [inline] RIP: 0010:deref_stack_reg arch/x86/kernel/unwind_orc.c:419 [inline] RIP: 0010:unwind_next_frame+0xe02/0x2550 arch/x86/kernel/unwind_orc.c:614 Code: 85 2c 12 00 00 41 83 3e 00 0f 95 c0 49 39 df 0f 96 c1 20 c1 49 39 dc 0f 97 c0 20 c8 3c 01 75 18 48 8d 43 08 4c 39 f8 0f 97 c1 <4c> 39 e0 0f 96 c0 84 c1 0f 85 bf 00 00 00 49 8d 7e 28 48 89 f8 48 RSP: 0018:ffffc900058f6b98 EFLAGS: 00000202 RAX: ffffc900058f7b20 RBX: ffffc900058f7b18 RCX: 1ffff92000b1ed01 RDX: ffffffff914a1592 RSI: 0000000000000002 RDI: ffffffff8c28b880 RBP: 1ffff92000b1ed8e R08: 0000000000000001 R09: ffffffff8e95cc20 R10: ffffc900058f6cb8 R11: ffffffff81b0e0e0 R12: ffffc900058f8000 R13: 1ffff92000b1ed8f R14: ffffc900058f6c68 R15: ffffc900058f0000 arch_stack_walk+0x11b/0x150 arch/x86/kernel/stacktrace.c:25 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_kmalloc+0x22/0xb0 mm/kasan/common.c:406 kasan_kmalloc include/linux/kasan.h:263 [inline] __kmalloc_cache_noprof+0x31c/0x660 mm/slub.c:5420 kmalloc_noprof include/linux/slab.h:950 [inline] kzalloc_noprof include/linux/slab.h:1188 [inline] ref_tracker_alloc+0x15a/0x4c0 lib/ref_tracker.c:270 __netdev_tracker_alloc include/linux/netdevice.h:4471 [inline] netdev_hold include/linux/netdevice.h:4500 [inline] qdisc_alloc+0x6d4/0x9e0 net/sched/sch_generic.c:1008 qdisc_create+0x12c/0xf20 net/sched/sch_api.c:1263 __tc_modify_qdisc net/sched/sch_api.c:1753 [inline] tc_modify_qdisc+0x16f0/0x2290 net/sched/sch_api.c:1817 rtnetlink_rcv_msg+0x77e/0xbe0 net/core/rtnetlink.c:7006 netlink_rcv_skb+0x232/0x4b0 net/netlink/af_netlink.c:2555 netlink_unicast_kernel net/netlink/af_netlink.c:1318 [inline] netlink_unicast+0x75c/0x8e0 net/netlink/af_netlink.c:1344 netlink_sendmsg+0x813/0xb40 net/netlink/af_netlink.c:1899 sock_sendmsg_nosec net/socket.c:787 [inline] __sock_sendmsg net/socket.c:802 [inline] ____sys_sendmsg+0x972/0x9f0 net/socket.c:2699 ___sys_sendmsg+0x2a5/0x360 net/socket.c:2753 __sys_sendmsg net/socket.c:2785 [inline] __do_sys_sendmsg net/socket.c:2790 [inline] __se_sys_sendmsg net/socket.c:2788 [inline] __x64_sys_sendmsg+0x1bd/0x2a0 net/socket.c:2788 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fa05d19ce59 RSP: 002b:00007fa05dfe1028 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007fa05d415fa0 RCX: 00007fa05d19ce59 RDX: 0000000000000000 RSI: 00002000000012c0 RDI: 0000000000000009 RBP: 00007fa05d232d6f R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fa05d416038 R14: 00007fa05d415fa0 R15: 00007fff972b3bf8 task:syz-executor state:R running task stack:22216 pid:16974 tgid:16974 ppid:16965 task_flags:0x400140 flags:0x00080000 Call Trace: context_switch kernel/sched/core.c:5388 [inline] __schedule+0x1821/0x5740 kernel/sched/core.c:7189 preempt_schedule_irq+0x4d/0xa0 kernel/sched/core.c:7513 irqentry_exit_to_kernel_mode include/linux/irq-entry-common.h:539 [inline] irqentry_exit+0x14f/0x8b0 kernel/entry/common.c:164 asm_sysvec_apic_timer_interrupt+0x1a/0x20 arch/x86/include/asm/idtentry.h:697 RIP: 0010:preempt_count arch/x86/include/asm/preempt.h:27 [inline] RIP: 0010:check_kcov_mode kernel/kcov.c:183 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x10/0x70 kernel/kcov.c:217 Code: de 5b e9 83 06 60 00 cc cc cc 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 48 8b 04 24 65 48 8b 0d 48 49 72 11 <65> 8b 15 69 49 72 11 81 e2 00 01 ff 00 74 11 81 fa 00 01 00 00 75 RSP: 0018:ffffc9000d6274c8 EFLAGS: 00000286 RAX: ffffffff81d5ada9 RBX: 0000000000000000 RCX: ffff8880437e9f00 RDX: 0000000000000000 RSI: 00007f9dc099b467 RDI: ffffffffa0201a18 RBP: 0000000000000000 R08: ffffffff81d5ac16 R09: ffffffff8e95cc20 R10: ffffc9000d6275b8 R11: ffffffff81b0e0e0 R12: ffffffffa0201a18 R13: dffffc0000000000 R14: 00007f9dc099b467 R15: ffff88805541d418 __lt_find include/linux/rbtree_latch.h:113 [inline] latch_tree_find include/linux/rbtree_latch.h:210 [inline] bpf_ksym_find kernel/bpf/core.c:715 [inline] is_bpf_text_address+0x1b9/0x2b0 kernel/bpf/core.c:748 kernel_text_address+0xa5/0xe0 kernel/extable.c:125 __kernel_text_address+0xd/0x30 kernel/extable.c:79 unwind_get_return_address+0x4d/0x90 arch/x86/kernel/unwind_orc.c:385 arch_stack_walk+0xfb/0x150 arch/x86/kernel/stacktrace.c:26 stack_trace_save+0xa9/0x100 kernel/stacktrace.c:122 save_stack+0x122/0x230 mm/page_owner.c:165 __reset_page_owner+0x71/0x1f0 mm/page_owner.c:320 reset_page_owner include/linux/page_owner.h:25 [inline] __free_pages_prepare mm/page_alloc.c:1397 [inline] __free_frozen_pages+0xc1c/0xd30 mm/page_alloc.c:2938 __slab_free+0x274/0x2c0 mm/slub.c:5613 qlink_free mm/kasan/quarantine.c:163 [inline] qlist_free_all+0x99/0x100 mm/kasan/quarantine.c:179 kasan_quarantine_reduce+0x148/0x160 mm/kasan/quarantine.c:286 __kasan_slab_alloc+0x22/0x80 mm/kasan/common.c:350 kasan_slab_alloc include/linux/kasan.h:253 [inline] slab_post_alloc_hook mm/slub.c:4570 [inline] slab_alloc_node mm/slub.c:4899 [inline] __do_kmalloc_node mm/slub.c:5295 [inline] __kmalloc_noprof+0x316/0x760 mm/slub.c:5308 kmalloc_noprof include/linux/slab.h:954 [inline] tomoyo_realpath_from_path+0xe3/0x5d0 security/tomoyo/realpath.c:251 tomoyo_get_realpath security/tomoyo/file.c:151 [inline] tomoyo_path_perm+0x283/0x560 security/tomoyo/file.c:827 security_inode_getattr+0x12b/0x310 security/security.c:1895 vfs_getattr fs/stat.c:259 [inline] vfs_fstat fs/stat.c:281 [inline] __do_sys_newfstat fs/stat.c:551 [inline] __se_sys_newfstat fs/stat.c:546 [inline] __x64_sys_newfstat+0x13b/0x270 fs/stat.c:546 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0x174/0x580 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9dc099b467 RSP: 002b:00007ffc8902e848 EFLAGS: 00000206 ORIG_RAX: 0000000000000005 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9dc099b467 RDX: 0000000000000000 RSI: 00007ffc8902e850 RDI: 0000000000000003 RBP: 00007ffc8902fa3c R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000206 R12: 00007ffc8902fa50 R13: 00007f9dc0a321ca R14: 000000000006ba9a R15: 00007ffc8902fa90 bridge0: received packet on veth1_to_bridge with own address as source address (addr:42:ad:a1:8a:aa:31, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:42:ad:a1:8a:aa:31, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0) bridge0: received packet on veth1_to_bridge with own address as source address (addr:42:ad:a1:8a:aa:31, vlan:0) bridge0: received packet on bridge_slave_1 with own address as source address (addr:aa:aa:aa:aa:aa:1c, vlan:0)