netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. IPv6: ADDRCONF(NETDEV_UP): veth751: link is not ready IPv6: ADDRCONF(NETDEV_UP): vlan448: link is not ready netlink: 24 bytes leftover after parsing attributes in process `syz-executor.0'. watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [syz-executor.5:15722] Modules linked in: irq event stamp: 7167725 hardirqs last enabled at (7167724): [] trace_hardirqs_on_thunk+0x1a/0x1c hardirqs last disabled at (7167725): [] trace_hardirqs_off_thunk+0x1a/0x1c softirqs last enabled at (4218426): [] rcu_read_unlock_bh include/linux/rcupdate.h:717 [inline] softirqs last enabled at (4218426): [] ip_finish_output2+0xdaf/0x15a0 net/ipv4/ip_output.c:232 softirqs last disabled at (4218487): [] invoke_softirq kernel/softirq.c:372 [inline] softirqs last disabled at (4218487): [] irq_exit+0x215/0x260 kernel/softirq.c:412 CPU: 1 PID: 15722 Comm: syz-executor.5 Not tainted 4.19.200-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:arch_local_irq_restore arch/x86/include/asm/paravirt.h:789 [inline] RIP: 0010:__raw_spin_unlock_irqrestore include/linux/spinlock_api_smp.h:160 [inline] RIP: 0010:_raw_spin_unlock_irqrestore+0xa3/0xe0 kernel/locking/spinlock.c:184 Code: 48 c7 c0 88 82 f1 89 48 ba 00 00 00 00 00 fc ff df 48 c1 e8 03 80 3c 10 00 75 2f 48 83 3d ac 82 d8 01 00 74 15 48 89 df 57 9d <0f> 1f 44 00 00 eb b2 e8 2b 3d e7 f8 eb c0 0f 0b 0f 0b 48 c7 c7 88 RSP: 0018:ffff8880ba107cb0 EFLAGS: 00000282 ORIG_RAX: ffffffffffffff13 RAX: 1ffffffff13e3051 RBX: 0000000000000282 RCX: 1ffff11007208972 RDX: dffffc0000000000 RSI: ffff888039044b70 RDI: 0000000000000282 RBP: ffff8880a55c4430 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: ffff8880a55c4430 R14: 0000000000000000 R15: 0000000000000000 FS: 00007fefb24b1700(0000) GS:ffff8880ba100000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c008f04808 CR3: 0000000099556000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: spin_unlock_irqrestore include/linux/spinlock.h:384 [inline] skb_dequeue+0x125/0x180 net/core/skbuff.c:2836 mrp_queue_xmit net/802/mrp.c:366 [inline] mrp_join_timer+0x97/0xc0 net/802/mrp.c:611 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:__read_once_size include/linux/compiler.h:261 [inline] RIP: 0010:arch_atomic_read arch/x86/include/asm/atomic.h:31 [inline] RIP: 0010:atomic_read include/asm-generic/atomic-instrumented.h:22 [inline] RIP: 0010:rcu_dynticks_curr_cpu_in_eqs kernel/rcu/tree.c:350 [inline] RIP: 0010:rcu_is_watching+0x68/0xc0 kernel/rcu/tree.c:1025 Code: 00 9f cf 89 be 04 00 00 00 48 8d 6b 10 48 89 ef e8 2d b3 46 00 48 89 ea 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 14 02 <48> 89 e8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 24 8b 43 10 d1 e8 RSP: 0018:ffff88808f34f400 EFLAGS: 00000a02 ORIG_RAX: ffffffffffffff13 RAX: dffffc0000000000 RBX: ffff8880ba122a80 RCX: ffffffff81518ab3 RDX: 0000000000000000 RSI: 0000000000000004 RDI: ffff8880ba122a90 RBP: ffff8880ba122a90 R08: 0000000000000000 R09: ffffed1017424552 R10: ffff8880ba122a93 R11: 0000000000074071 R12: ffff88808f34f508 R13: 0000000000000000 R14: ffff88813bff0340 R15: 0000000000000040 kernel_text_address kernel/extable.c:140 [inline] kernel_text_address+0x56/0xf0 kernel/extable.c:122 __kernel_text_address+0x9/0x30 kernel/extable.c:107 unwind_get_return_address arch/x86/kernel/unwind_orc.c:297 [inline] unwind_get_return_address+0x51/0x90 arch/x86/kernel/unwind_orc.c:292 __save_stack_trace+0xaf/0x190 arch/x86/kernel/stacktrace.c:45 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 mm/slab.c:3397 [inline] kmem_cache_alloc_trace+0x11a/0x380 mm/slab.c:3623 kmalloc include/linux/slab.h:515 [inline] sctp_datamsg_new net/sctp/chunk.c:65 [inline] sctp_datamsg_from_user+0x86/0x11a0 net/sctp/chunk.c:177 sctp_sendmsg_to_asoc+0xfdd/0x1ea0 net/sctp/socket.c:1977 sctp_sendmsg+0xe23/0x1580 net/sctp/socket.c:2149 inet_sendmsg+0x132/0x5a0 net/ipv4/af_inet.c:798 sock_sendmsg_nosec net/socket.c:651 [inline] sock_sendmsg+0xc3/0x120 net/socket.c:661 ___sys_sendmsg+0x7bb/0x8e0 net/socket.c:2225 __sys_sendmsg net/socket.c:2263 [inline] __do_sys_sendmsg net/socket.c:2272 [inline] __se_sys_sendmsg net/socket.c:2270 [inline] __x64_sys_sendmsg+0x132/0x220 net/socket.c:2270 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4665e9 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 bc ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fefb24b1188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665e9 RDX: 0000000000000000 RSI: 00000000200001c0 RDI: 0000000000000004 RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80 R13: 00007ffc508c62cf R14: 00007fefb24b1300 R15: 0000000000022000 Sending NMI from CPU 1 to CPUs 0: NMI backtrace for cpu 0 CPU: 0 PID: 7856 Comm: agetty Not tainted 4.19.200-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:tty_paranoia_check+0x35/0x80 drivers/tty/tty_io.c:270 Code: 89 fb e8 5e 03 aa fd 48 85 db 0f 84 5f e7 44 04 e8 50 03 aa fd 48 89 da 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 0f b6 04 02 <84> c0 74 04 3c 03 7e 2a 8b 1b bf 01 54 00 00 89 de e8 95 04 aa fd RSP: 0018:ffff88809da97c80 EFLAGS: 00000a02 RAX: 0000000000000000 RBX: ffff8880b2e6ea00 RCX: ffff88809da97eb0 RDX: 1ffff110165cdd40 RSI: ffffffff83b87f40 RDI: ffff8880b2e6ea00 RBP: ffff8880b1429b60 R08: ffffffff83b89d80 R09: 0000000000000000 R10: 0000000000000007 R11: 0000000000000000 R12: ffffffff88c007e0 R13: 00007fffc8876dcf R14: 0000000000000001 R15: ffff8880b1429b60 FS: 00007f4d01208500(0000) GS:ffff8880ba000000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000540198 CR3: 00000000b4233000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: tty_read+0x98/0x290 drivers/tty/tty_io.c:856 __vfs_read+0xf7/0x750 fs/read_write.c:416 vfs_read+0x194/0x3c0 fs/read_write.c:452 ksys_read+0x12b/0x2a0 fs/read_write.c:579 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f4d00d25910 Code: b6 fe ff ff 48 8d 3d 0f be 08 00 48 83 ec 08 e8 06 db 01 00 66 0f 1f 44 00 00 83 3d f9 2d 2c 00 00 75 10 b8 00 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 de 9b 01 00 48 89 04 24 RSP: 002b:00007fffc8876d68 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f4d00d25910 RDX: 0000000000000001 RSI: 00007fffc8876dcf RDI: 0000000000000000 RBP: 0000000000000008 R08: ffffffffffffff98 R09: 00007fffc8875c20 R10: 000000000000051b R11: 0000000000000246 R12: 0000000000000000 R13: 0000564fd1e6d911 R14: 00007fffc8876dd0 R15: 0000000000000012