[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 40.220353][ T26] audit: type=1800 audit(1556022061.064:25): pid=7776 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 40.251916][ T26] audit: type=1800 audit(1556022061.064:26): pid=7776 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 40.292779][ T26] audit: type=1800 audit(1556022061.084:27): pid=7776 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.1.19' (ECDSA) to the list of known hosts. syzkaller login: [ 51.655619][ T7936] IPVS: ftp: loaded support on port[0] = 21 [ 51.655626][ T7932] IPVS: ftp: loaded support on port[0] = 21 [ 51.669648][ T7937] IPVS: ftp: loaded support on port[0] = 21 [ 51.675636][ T7935] IPVS: ftp: loaded support on port[0] = 21 [ 51.682866][ T7939] IPVS: ftp: loaded support on port[0] = 21 [ 51.687813][ T7938] IPVS: ftp: loaded support on port[0] = 21 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 51.847006][ T7947] ------------[ cut here ]------------ [ 51.853773][ T7947] memory commitment underflow [ 51.853925][ T7947] WARNING: CPU: 0 PID: 7947 at mm/util.c:657 __vm_enough_memory+0x47b/0x5a0 [ 51.868929][ T7947] Kernel panic - not syncing: panic_on_warn set ... [ 51.869677][ T7935] kobject: 'ip6tnl0' (00000000080845d8): kobject_uevent_env [ 51.875528][ T7947] CPU: 0 PID: 7947 Comm: syz-executor945 Not tainted 5.1.0-rc6 #80 [ 51.885227][ T7935] kobject: 'ip6tnl0' (00000000080845d8): fill_kobj_path: path = '/devices/virtual/net/ip6tnl0' [ 51.890994][ T7947] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.891001][ T7947] Call Trace: [ 51.891026][ T7947] dump_stack+0x172/0x1f0 [ 51.891047][ T7947] ? __vm_enough_memory+0x3d0/0x5a0 [ 51.891077][ T7947] panic+0x2cb/0x65c [ 51.891098][ T7947] ? __warn_printk+0xf3/0xf3 [ 51.902398][ T7935] kobject: 'queues' (00000000d5aefd5e): kobject_add_internal: parent: 'ip6tnl0', set: '' [ 51.911476][ T7947] ? __vm_enough_memory+0x47b/0x5a0 [ 51.911495][ T7947] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.911513][ T7947] ? __warn.cold+0x5/0x45 [ 51.911527][ T7947] ? __warn+0xe8/0x1d0 [ 51.911541][ T7947] ? __vm_enough_memory+0x47b/0x5a0 [ 51.911565][ T7947] __warn.cold+0x20/0x45 [ 51.915347][ T7935] kobject: 'queues' (00000000d5aefd5e): kobject_uevent_env [ 51.919166][ T7947] ? vprintk_emit+0x1ce/0x6d0 [ 51.919182][ T7947] ? __vm_enough_memory+0x47b/0x5a0 [ 51.919200][ T7947] report_bug+0x263/0x2b0 [ 51.919222][ T7947] do_error_trap+0x11b/0x200 [ 51.919239][ T7947] do_invalid_op+0x37/0x50 [ 51.919265][ T7947] ? __vm_enough_memory+0x47b/0x5a0 [ 51.926186][ T7935] kobject: 'queues' (00000000d5aefd5e): kobject_uevent_env: filter function caused the event to drop! [ 51.928357][ T7947] invalid_op+0x14/0x20 [ 51.928374][ T7947] RIP: 0010:__vm_enough_memory+0x47b/0x5a0 [ 51.928389][ T7947] Code: e8 aa 79 da ff 0f b6 75 d0 40 84 f6 0f 85 50 fc ff ff e8 58 78 da ff 48 c7 c7 60 7c 72 87 c6 05 2f 73 c4 07 01 e8 03 26 ad ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 0f b6 14 [ 51.928405][ T7947] RSP: 0018:ffff888093cffa60 EFLAGS: 00010282 [ 51.933136][ T7935] kobject: 'rx-0' (00000000c079a903): kobject_add_internal: parent: 'queues', set: 'queues' [ 51.952191][ T7947] RAX: 0000000000000000 RBX: fff8000000000000 RCX: 0000000000000000 [ 51.952201][ T7947] RDX: 0000000000000000 RSI: ffffffff815afcf6 RDI: ffffed101279ff3e [ 51.952208][ T7947] RBP: ffff888093cffa98 R08: ffff8880a96943c0 R09: ffff8880a9694c88 [ 51.952214][ T7947] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 51.952221][ T7947] R13: ffff8880a8a75200 R14: ffffffff88a2a580 R15: 0000000000000c67 [ 51.952263][ T7947] ? vprintk_func+0x86/0x189 [ 51.952292][ T7947] security_vm_enough_memory_mm+0xa0/0xd0 [ 51.952310][ T7947] __shmem_file_setup.part.0+0x194/0x2b0 [ 51.952328][ T7947] shmem_file_setup+0x66/0x90 [ 51.952351][ T7947] ashmem_mmap+0x35f/0x520 [ 51.958673][ T7935] kobject: 'rx-0' (00000000c079a903): kobject_uevent_env [ 51.963834][ T7947] mmap_region+0xc3a/0x1770 [ 51.963859][ T7947] ? __x64_sys_brk+0x760/0x760 [ 51.963878][ T7947] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.963898][ T7947] ? get_unmapped_area+0x295/0x3b0 [ 51.968969][ T7935] kobject: 'rx-0' (00000000c079a903): fill_kobj_path: path = '/devices/virtual/net/ip6tnl0/queues/rx-0' [ 51.972377][ T7947] do_mmap+0x8e2/0x1080 [ 51.972400][ T7947] vm_mmap_pgoff+0x1c5/0x230 [ 51.972428][ T7947] ? vma_is_stack_for_current+0xd0/0xd0 [ 51.978245][ T7935] kobject: 'tx-0' (00000000d65f0d1b): kobject_add_internal: parent: 'queues', set: 'queues' [ 51.981858][ T7947] ? ksys_dup3+0x3e0/0x3e0 [ 51.981886][ T7947] ksys_mmap_pgoff+0x4aa/0x630 [ 51.981903][ T7947] ? find_mergeable_anon_vma+0x2e0/0x2e0 [ 51.981926][ T7947] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.989951][ T7935] kobject: 'tx-0' (00000000d65f0d1b): kobject_uevent_env [ 51.993874][ T7947] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 51.993891][ T7947] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 51.993906][ T7947] ? do_syscall_64+0x26/0x610 [ 51.993923][ T7947] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.993943][ T7947] __x64_sys_mmap+0xe9/0x1b0 [ 51.999781][ T7935] kobject: 'tx-0' (00000000d65f0d1b): fill_kobj_path: path = '/devices/virtual/net/ip6tnl0/queues/tx-0' [ 52.003462][ T7947] do_syscall_64+0x103/0x610 [ 52.003484][ T7947] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 52.003496][ T7947] RIP: 0033:0x441319 [ 52.003516][ T7947] Code: e8 6c e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 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 0f 83 cb 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 52.009921][ T7935] kobject: 'ip6gre0' (000000003a070fdb): kobject_add_internal: parent: 'net', set: 'devices' [ 52.012922][ T7947] RSP: 002b:00007ffc7d110a28 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 52.012938][ T7947] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 0000000000441319 [ 52.012947][ T7947] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000020ffc000 [ 52.012955][ T7947] RBP: 00000000006cc018 R08: 0000000000000003 R09: 0000000000000000 [ 52.012965][ T7947] R10: 0080000000000012 R11: 0000000000000246 R12: 0000000000402170 [ 52.012972][ T7947] R13: 0000000000402200 R14: 0000000000000000 R15: 0000000000000000 [ 52.019221][ T7947] Kernel Offset: disabled [ 52.392247][ T7947] Rebooting in 86400 seconds..