netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. bond0: bridge0 is up - this may be due to an out of date ifenslave ================================================================================ UBSAN: Undefined behaviour in net/bridge/br_private.h:586:29 load of value 5 is not a valid value for type '_Bool' CPU: 1 PID: 8151 Comm: syz-executor.0 Not tainted 4.19.149-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x22c/0x33e lib/dump_stack.c:118 ubsan_epilogue+0xe/0x3a lib/ubsan.c:161 __ubsan_handle_load_invalid_value.cold+0x63/0x6f lib/ubsan.c:454 br_skb_isolated net/bridge/br_private.h:586 [inline] should_deliver net/bridge/br_forward.c:34 [inline] maybe_deliver.cold+0x15/0x34 net/bridge/br_forward.c:178 br_flood+0x180/0x4f0 net/bridge/br_forward.c:226 br_dev_xmit+0xdd0/0x1510 net/bridge/br_device.c:103 __netdev_start_xmit include/linux/netdevice.h:4333 [inline] netdev_start_xmit include/linux/netdevice.h:4347 [inline] xmit_one net/core/dev.c:3256 [inline] dev_hard_start_xmit+0x1a8/0x960 net/core/dev.c:3272 __dev_queue_xmit+0x276a/0x2ec0 net/core/dev.c:3838 mrp_queue_xmit net/802/mrp.c:354 [inline] mrp_join_timer+0x8a/0xc0 net/802/mrp.c:598 call_timer_fn+0x177/0x760 kernel/time/timer.c:1338 expire_timers+0x243/0x500 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1703 [inline] run_timer_softirq+0x259/0x730 kernel/time/timer.c:1716 __do_softirq+0x27d/0xad2 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x22d/0x270 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:544 [inline] smp_apic_timer_interrupt+0x15f/0x5d0 arch/x86/kernel/apic/apic.c:1094 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:kmem_cache_free+0x11c/0x2b0 mm/slab.c:3766 Code: 11 48 63 75 74 48 89 df e8 c1 f3 f7 01 e9 68 ff ff ff e8 57 6c cc ff 48 83 3d 67 a9 b8 07 00 0f 84 36 01 00 00 4c 89 e7 57 9d <0f> 1f 44 00 00 eb 86 65 8b 05 96 a0 56 7e 83 f8 3f 0f 87 45 01 00 RSP: 0018:ffff888044977800 EFLAGS: 00000286 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000007 RBX: ffff88808df02b00 RCX: 0000000000000000 RDX: 0000000000000000 RSI: 0000000000000001 RDI: 0000000000000286 RBP: ffff88812c3e9040 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000286 R13: ffffffff81352f90 R14: ffffffffffffffff R15: 0000000000000001 pte_lock_deinit include/linux/mm.h:1907 [inline] pgtable_page_dtor include/linux/mm.h:1940 [inline] ___pte_free_tlb+0x40/0x1b0 arch/x86/mm/pgtable.c:64 __pte_free_tlb arch/x86/include/asm/pgalloc.h:73 [inline] free_pte_range mm/memory.c:457 [inline] free_pmd_range mm/memory.c:475 [inline] free_pud_range mm/memory.c:509 [inline] free_p4d_range mm/memory.c:543 [inline] free_pgd_range+0xa94/0x10a0 mm/memory.c:623 free_pgtables+0x230/0x2f0 mm/memory.c:655 exit_mmap+0x2c8/0x530 mm/mmap.c:3094 __mmput kernel/fork.c:1015 [inline] mmput+0x14e/0x4a0 kernel/fork.c:1036 exit_mm kernel/exit.c:546 [inline] do_exit+0xb12/0x2d80 kernel/exit.c:874 do_group_exit+0x125/0x320 kernel/exit.c:990 get_signal+0x3f3/0x2270 kernel/signal.c:2588 do_signal+0x8f/0x1690 arch/x86/kernel/signal.c:821 exit_to_usermode_loop+0x204/0x2c0 arch/x86/entry/common.c:163 prepare_exit_to_usermode arch/x86/entry/common.c:198 [inline] syscall_return_slowpath arch/x86/entry/common.c:271 [inline] do_syscall_64+0x57c/0x670 arch/x86/entry/common.c:296 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x45dd99 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f1c620f7cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000ca RAX: 0000000000000000 RBX: 000000000118bf28 RCX: 000000000045dd99 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 000000000118bf28 RBP: 000000000118bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 00007fff0ea8f57f R14: 00007f1c620f89c0 R15: 000000000118bf2c ================================================================================ x_tables: duplicate underflow at hook 2 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. x_tables: duplicate underflow at hook 1 raw_sendmsg: syz-executor.0 forgot to set AF_INET. Fix it! netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. x_tables: duplicate underflow at hook 1 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. IPVS: ip_vs_svc_hash(): request for already hashed, called from do_ip_vs_set_ctl+0xcbf/0xf30 net/netfilter/ipvs/ip_vs_ctl.c:2451 veth0_to_bridge: mtu less than device minimum IPVS: ip_vs_svc_hash(): request for already hashed, called from do_ip_vs_set_ctl+0xcbf/0xf30 net/netfilter/ipvs/ip_vs_ctl.c:2451 xt_CT: netfilter: NOTRACK target is deprecated, use CT instead or upgrade iptables batman_adv: batadv0: Interface deactivated: batadv_slave_0 batman_adv: batadv0: Removing interface: batadv_slave_0 bond0: batadv_slave_0 is up - this may be due to an out of date ifenslave nla_parse: 5 callbacks suppressed netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. x_tables: duplicate underflow at hook 1 batman_adv: batadv0: Interface deactivated: batadv_slave_1 batman_adv: batadv0: Removing interface: batadv_slave_1 x_tables: duplicate underflow at hook 2 bond0: batadv_slave_1 is up - this may be due to an out of date ifenslave x_tables: duplicate underflow at hook 3 x_tables: duplicate underflow at hook 3 netlink: 24 bytes leftover after parsing attributes in process `syz-executor.2'. bond0: veth1_to_hsr is up - this may be due to an out of date ifenslave x_tables: duplicate underflow at hook 2 bond0: veth1_virt_wifi is up - this may be due to an out of date ifenslave x_tables: duplicate underflow at hook 1 x_tables: duplicate underflow at hook 2 x_tables: duplicate underflow at hook 1 x_tables: duplicate underflow at hook 1