xt_CT: You must specify a L4 protocol and not use inversions on it netlink: 'syz-executor.4': attribute type 27 has an invalid length. netlink: 8 bytes leftover after parsing attributes in process `syz-executor.4'. watchdog: BUG: soft lockup - CPU#0 stuck for 23s! [syz-executor.5:2293] Modules linked in: irq event stamp: 1961555 hardirqs last enabled at (1961554): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (1961555): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (290): [] netlink_create+0x3c2/0x5e0 net/netlink/af_netlink.c:712 softirqs last disabled at (339): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (339): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 0 PID: 2293 Comm: syz-executor.5 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:orc_ip arch/x86/kernel/unwind_orc.c:26 [inline] RIP: 0010:__orc_find+0x75/0xf0 arch/x86/kernel/unwind_orc.c:48 Code: 29 e8 48 89 c2 48 c1 e8 3f 48 c1 fa 02 48 01 d0 48 d1 f8 48 8d 5c 85 00 48 89 d8 48 c1 e8 03 42 0f b6 14 38 48 89 d8 83 e0 07 <83> c0 03 38 d0 7c 04 84 d2 75 48 48 63 03 48 01 d8 48 39 c1 73 b0 RSP: 0018:ffff8880ba007740 EFLAGS: 00000202 ORIG_RAX: ffffffffffffff13 RAX: 0000000000000004 RBX: ffffffff8b761684 RCX: ffffffff867098b0 RDX: 0000000000000000 RSI: ffffffff8bf57e08 RDI: ffffffff8b761664 RBP: ffffffff8b761684 R08: 0000000000000000 R09: ffffffff8bf57e08 R10: ffff8880ba007917 R11: 0000000000074071 R12: ffffffff8b761688 R13: ffffffff8b761664 R14: ffffffff8b761680 R15: dffffc0000000000 FS: 00007f50bd0a6700(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2fb22000 CR3: 000000009cb47000 CR4: 00000000003406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: orc_find arch/x86/kernel/unwind_orc.c:159 [inline] unwind_next_frame+0x339/0x1400 arch/x86/kernel/unwind_orc.c:422 __save_stack_trace+0x9f/0x190 arch/x86/kernel/stacktrace.c:44 save_stack mm/kasan/kasan.c:448 [inline] set_track mm/kasan/kasan.c:460 [inline] kasan_kmalloc+0xeb/0x160 mm/kasan/kasan.c:553 slab_post_alloc_hook mm/slab.h:445 [inline] slab_alloc_node mm/slab.c:3340 [inline] kmem_cache_alloc_node+0x133/0x3b0 mm/slab.c:3647 __alloc_skb+0x71/0x560 net/core/skbuff.c:193 alloc_skb include/linux/skbuff.h:995 [inline] mrp_pdu_init net/802/mrp.c:316 [inline] mrp_pdu_append_vecattr_event+0x7d2/0x1050 net/802/mrp.c:415 mrp_attr_event+0x15d/0x220 net/802/mrp.c:510 mrp_mad_event net/802/mrp.c:590 [inline] mrp_join_timer+0x5a/0xc0 net/802/mrp.c:607 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:__write_once_size include/linux/compiler.h:290 [inline] RIP: 0010:__sanitizer_cov_trace_pc+0x44/0x50 kernel/kcov.c:109 Code: 75 2b 8b 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13 00 00 48 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 <48> 89 11 c3 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 RSP: 0018:ffff88802ebf7b40 EFLAGS: 00000212 ORIG_RAX: ffffffffffffff13 RAX: 0000000000040000 RBX: 0000000000000002 RCX: ffffc9000c6b6000 RDX: 0000000000001d69 RSI: ffffffff83771e31 RDI: 0000000000000005 RBP: ffffffff88b3e120 R08: 00000000006080c0 R09: 0000000000000000 R10: 0000000000000005 R11: 00000000d0c18324 R12: 0000000000000000 R13: ffffffff88b3e0e0 R14: 0000000000000048 R15: ffffffff8343e034 check_preemption_disabled+0x41/0x280 lib/smp_processor_id.c:51 rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:348 [inline] rcu_is_watching+0x12/0xc0 kernel/rcu/tree.c:1025 rcu_read_lock_sched_held+0xc6/0x1d0 kernel/rcu/update.c:113 trace_kmalloc include/trace/events/kmem.h:46 [inline] kmem_cache_alloc_trace+0x323/0x380 mm/slab.c:3626 kmalloc include/linux/slab.h:515 [inline] kzalloc include/linux/slab.h:709 [inline] aa_alloc_file_ctx security/apparmor/include/file.h:60 [inline] apparmor_file_alloc_security+0x394/0xad0 security/apparmor/lsm.c:438 security_file_alloc+0x40/0x90 security/security.c:880 __alloc_file+0xd8/0x340 fs/file_table.c:105 alloc_empty_file+0x6d/0x170 fs/file_table.c:150 alloc_file+0x5e/0x4d0 fs/file_table.c:192 alloc_file_pseudo+0x165/0x250 fs/file_table.c:231 sock_alloc_file+0x48/0x180 net/socket.c:406 sock_map_fd net/socket.c:429 [inline] __sys_socket+0x13d/0x200 net/socket.c:1462 __do_sys_socket net/socket.c:1467 [inline] __se_sys_socket net/socket.c:1465 [inline] __x64_sys_socket+0x6f/0xb0 net/socket.c:1465 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f50be7b5059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f50bd0a6168 EFLAGS: 00000246 ORIG_RAX: 0000000000000029 RAX: ffffffffffffffda RBX: 00007f50be8c82a0 RCX: 00007f50be7b5059 RDX: 0000000000000000 RSI: 0000000000080002 RDI: 0000000000000010 RBP: 00007f50be80f08d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffbc25dc0f R14: 00007f50bd0a6300 R15: 0000000000022000 Sending NMI from CPU 0 to CPUs 1: NMI backtrace for cpu 1 CPU: 1 PID: 2273 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__sanitizer_cov_trace_pc+0x47/0x50 kernel/kcov.c:111 Code: 90 60 13 00 00 83 fa 02 75 20 48 8b 88 68 13 00 00 8b 80 64 13 00 00 48 8b 11 48 83 c2 01 48 39 d0 76 07 48 89 34 d1 48 89 11 0f 1f 84 00 00 00 00 00 49 89 f1 49 89 fa 65 48 8b 34 25 c0 df RSP: 0018:ffff8880ba107ba0 EFLAGS: 00000006 RAX: ffff888013c6c2c0 RBX: 0000000000000000 RCX: ffffffff8167ada7 RDX: 0000000000000100 RSI: ffffffff8167adc4 RDI: 0000000000000005 RBP: ffff8880ba122b40 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000005 R11: 0000000000000000 R12: 0000000000000286 R13: ffffffff88194d76 R14: ffffed101372f4ae R15: 0000000000000000 FS: 00007f699c91e700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f699c816718 CR3: 0000000031d31000 CR4: 00000000003406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: trace_hardirqs_off+0x64/0x200 kernel/trace/trace_preemptirq.c:43 __raw_spin_lock_irqsave include/linux/spinlock_api_smp.h:108 [inline] _raw_spin_lock_irqsave+0x66/0xc0 kernel/locking/spinlock.c:152 lock_timer_base+0x55/0x1b0 kernel/time/timer.c:950 __mod_timer kernel/time/timer.c:1022 [inline] mod_timer+0x6be/0x1010 kernel/time/timer.c:1114 call_timer_fn+0x177/0x700 kernel/time/timer.c:1338 expire_timers+0x243/0x4e0 kernel/time/timer.c:1375 __run_timers kernel/time/timer.c:1696 [inline] run_timer_softirq+0x21c/0x670 kernel/time/timer.c:1709 __do_softirq+0x265/0x980 kernel/softirq.c:292 invoke_softirq kernel/softirq.c:372 [inline] irq_exit+0x215/0x260 kernel/softirq.c:412 exiting_irq arch/x86/include/asm/apic.h:536 [inline] smp_apic_timer_interrupt+0x136/0x550 arch/x86/kernel/apic/apic.c:1098 apic_timer_interrupt+0xf/0x20 arch/x86/entry/entry_64.S:894 RIP: 0010:is_hsr_master+0x1/0x70 net/hsr/hsr_device.c:432 Code: 43 fe ff ff e8 f0 74 ad f9 e9 8c fd ff ff e8 b6 77 ad f9 e9 89 fe ff ff e8 ac 77 ad f9 e9 52 fe ff ff 0f 1f 80 00 00 00 00 53 <48> 89 fb e8 d7 97 77 f9 48 8d bb f8 01 00 00 48 b8 00 00 00 00 00 RSP: 0018:ffff88809fdcecf0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 RAX: ffff888013c6c2c0 RBX: ffff88809c9e4940 RCX: ffffffff87ea7e87 RDX: 0000000000000000 RSI: ffffffff87ea7f37 RDI: ffff88809c9e4940 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000001 R13: dffffc0000000000 R14: 0000000000000004 R15: ffffffff8b0bcc40 hsr_netdev_notify+0x11f/0x9f0 net/hsr/hsr_main.c:35 notifier_call_chain+0xc0/0x230 kernel/notifier.c:93 netdev_state_change net/core/dev.c:1349 [inline] netdev_state_change+0x100/0x130 net/core/dev.c:1342 do_setlink+0x2b37/0x3540 net/core/rtnetlink.c:2661 rtnl_group_changelink net/core/rtnetlink.c:2925 [inline] rtnl_newlink+0xbc9/0x15c0 net/core/rtnetlink.c:3083 rtnetlink_rcv_msg+0x453/0xb80 net/core/rtnetlink.c:4782 netlink_rcv_skb+0x160/0x440 net/netlink/af_netlink.c:2463 netlink_unicast_kernel net/netlink/af_netlink.c:1325 [inline] netlink_unicast+0x4d5/0x690 net/netlink/af_netlink.c:1351 netlink_sendmsg+0x6c3/0xc50 net/netlink/af_netlink.c:1917 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2227 __sys_sendmsg net/socket.c:2265 [inline] __do_sys_sendmsg net/socket.c:2274 [inline] __se_sys_sendmsg net/socket.c:2272 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2272 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f699dfa9059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f699c91e168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00007f699e0bbf60 RCX: 00007f699dfa9059 RDX: 0000000000000000 RSI: 0000000020000180 RDI: 000000000000000a RBP: 00007f699e00308d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fff01997c8f R14: 00007f699c91e300 R15: 0000000000022000 ---------------- Code disassembly (best guess): 0: 29 e8 sub %ebp,%eax 2: 48 89 c2 mov %rax,%rdx 5: 48 c1 e8 3f shr $0x3f,%rax 9: 48 c1 fa 02 sar $0x2,%rdx d: 48 01 d0 add %rdx,%rax 10: 48 d1 f8 sar %rax 13: 48 8d 5c 85 00 lea 0x0(%rbp,%rax,4),%rbx 18: 48 89 d8 mov %rbx,%rax 1b: 48 c1 e8 03 shr $0x3,%rax 1f: 42 0f b6 14 38 movzbl (%rax,%r15,1),%edx 24: 48 89 d8 mov %rbx,%rax 27: 83 e0 07 and $0x7,%eax * 2a: 83 c0 03 add $0x3,%eax <-- trapping instruction 2d: 38 d0 cmp %dl,%al 2f: 7c 04 jl 0x35 31: 84 d2 test %dl,%dl 33: 75 48 jne 0x7d 35: 48 63 03 movslq (%rbx),%rax 38: 48 01 d8 add %rbx,%rax 3b: 48 39 c1 cmp %rax,%rcx 3e: 73 b0 jae 0xfffffff0