[ 35.964954][ T26] audit: type=1800 audit(1552374945.589:27): pid=7525 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 35.986276][ T26] audit: type=1800 audit(1552374945.599:28): pid=7525 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 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. [ 36.725367][ T26] audit: type=1800 audit(1552374946.419:29): pid=7525 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2432 res=0 [ 36.745658][ T26] audit: type=1800 audit(1552374946.429:30): pid=7525 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2423 res=0 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.15.207' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 46.233415][ T7680] FAULT_INJECTION: forcing a failure. [ 46.233415][ T7680] name failslab, interval 1, probability 0, space 0, times 1 [ 46.246391][ T7680] CPU: 0 PID: 7680 Comm: syz-executor161 Not tainted 5.0.0+ #18 [ 46.253999][ T7680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.264026][ T7680] Call Trace: [ 46.267306][ T7680] dump_stack+0x172/0x1f0 [ 46.271622][ T7680] should_fail.cold+0xa/0x15 [ 46.276196][ T7680] ? fault_create_debugfs_attr+0x1e0/0x1e0 [ 46.281982][ T7680] ? ___might_sleep+0x163/0x280 [ 46.286811][ T7680] __should_failslab+0x121/0x190 [ 46.291735][ T7680] should_failslab+0x9/0x14 [ 46.296273][ T7680] kmem_cache_alloc_trace+0x2d1/0x760 [ 46.301655][ T7680] ? mark_held_locks+0xa4/0xf0 [ 46.306409][ T7680] sctp_add_bind_addr+0x9f/0x3a0 [ 46.311353][ T7680] sctp_bind_addr_dup+0xdd/0x140 [ 46.316277][ T7680] sctp_sock_migrate+0x525/0x14c0 [ 46.321293][ T7680] ? kasan_check_read+0x11/0x20 [ 46.326143][ T7680] sctp_do_peeloff+0x2f5/0x470 [ 46.330884][ T7680] ? sctp_copy_sock+0xe50/0xe50 [ 46.335720][ T7680] ? lock_downgrade+0x880/0x880 [ 46.340561][ T7680] sctp_getsockopt_peeloff_common.isra.0+0x8e/0x270 [ 46.347142][ T7680] ? sctp_do_peeloff+0x470/0x470 [ 46.352068][ T7680] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.358305][ T7680] ? _copy_from_user+0xdd/0x150 [ 46.363161][ T7680] sctp_getsockopt+0x1ec1/0x6741 [ 46.368077][ T7680] ? __lock_acquire+0x548/0x3fb0 [ 46.373008][ T7680] ? _parse_integer+0x190/0x190 [ 46.377861][ T7680] ? sctp_getsockopt_peeloff_common.isra.0+0x270/0x270 [ 46.384716][ T7680] ? aa_label_sk_perm+0x101/0x560 [ 46.389724][ T7680] ? aa_profile_af_perm+0x320/0x320 [ 46.394897][ T7680] ? find_held_lock+0x35/0x130 [ 46.399649][ T7680] ? __fget+0x35a/0x550 [ 46.403801][ T7680] ? lock_downgrade+0x880/0x880 [ 46.408627][ T7680] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.414859][ T7680] ? kasan_check_read+0x11/0x20 [ 46.419701][ T7680] ? ___might_sleep+0x163/0x280 [ 46.424556][ T7680] ? __might_sleep+0x95/0x190 [ 46.429211][ T7680] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 46.434819][ T7680] ? aa_sk_perm+0x288/0x880 [ 46.439322][ T7680] ? aa_sock_opt_perm.isra.0+0xa1/0x130 [ 46.444865][ T7680] sock_common_getsockopt+0x9a/0xe0 [ 46.450050][ T7680] ? sock_common_getsockopt+0x9a/0xe0 [ 46.455457][ T7680] __sys_getsockopt+0x168/0x250 [ 46.460287][ T7680] ? kernel_setsockopt+0x1e0/0x1e0 [ 46.465391][ T7680] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 46.470855][ T7680] ? do_syscall_64+0x26/0x610 [ 46.475538][ T7680] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.481581][ T7680] ? do_syscall_64+0x26/0x610 [ 46.486233][ T7680] __x64_sys_getsockopt+0xbe/0x150 [ 46.491324][ T7680] do_syscall_64+0x103/0x610 [ 46.495893][ T7680] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.501759][ T7680] RIP: 0033:0x446679 [ 46.505633][ T7680] Code: e8 6c b4 02 00 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 2b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 46.525212][ T7680] RSP: 002b:00007f47f49ded88 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 [ 46.533599][ T7680] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446679 [ 46.541550][ T7680] RDX: 0000000000000066 RSI: 0000000000000084 RDI: 0000000000000003 [ 46.549516][ T7680] RBP: 00000000006dbc30 R08: 0000000020000140 R09: 0000000000000038 [ 46.557511][ T7680] R10: 0000000020000040 R11: 0000000000000246 R12: 00000000006dbc3c [ 46.565472][ T7680] R13: 00007f47f49ded90 R14: 0000000000000004 R15: 20c49ba5e353f7cf [ 46.574696][ T7680] kasan: CONFIG_KASAN_INLINE enabled [ 46.580157][ T7680] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 46.588286][ T7680] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 46.595221][ T7680] CPU: 0 PID: 7680 Comm: syz-executor161 Not tainted 5.0.0+ #18 [ 46.602832][ T7680] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 46.612886][ T7680] RIP: 0010:sctp_assoc_rwnd_increase+0x34/0x520 [ 46.619099][ T7680] Code: 41 54 49 89 fc 53 89 f3 48 83 ec 10 e8 95 90 f1 fa 49 8d bc 24 60 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 2f 04 00 00 45 8b ac 24 60 06 [ 46.638695][ T7680] RSP: 0018:ffff88808da476f8 EFLAGS: 00010203 [ 46.644745][ T7680] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 46.652694][ T7680] RDX: 00000000000000cb RSI: ffffffff867ecd5b RDI: 000000000000065f [ 46.660650][ T7680] RBP: ffff88808da47730 R08: ffff88808c5d64c0 R09: ffff88808c5d6d88 [ 46.668607][ T7680] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffffff [ 46.676561][ T7680] R13: 0000000000000000 R14: ffff88808c4d6f00 R15: 0000000000000000 [ 46.684625][ T7680] FS: 00007f47f49df700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 46.693542][ T7680] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 46.700141][ T7680] CR2: 0000000020000044 CR3: 0000000097508000 CR4: 00000000001406f0 [ 46.708094][ T7680] Call Trace: [ 46.711375][ T7680] sctp_ulpevent_free+0x21f/0x4e0 [ 46.716390][ T7680] sctp_queue_purge_ulpevents+0xc4/0x110 [ 46.722003][ T7680] sctp_close+0x148/0x860 [ 46.726315][ T7680] ? rcu_read_lock_sched_held+0x110/0x130 [ 46.732005][ T7680] ? mark_held_locks+0xa4/0xf0 [ 46.736756][ T7680] ? sctp_init_sock+0x1360/0x1360 [ 46.741754][ T7680] ? sctp_add_bind_addr+0x2d3/0x3a0 [ 46.746928][ T7680] ? ip_mc_drop_socket+0x211/0x270 [ 46.752028][ T7680] ? sctp_bind_addr_dup+0xf3/0x140 [ 46.757132][ T7680] inet_release+0x105/0x1f0 [ 46.761614][ T7680] inet6_release+0x53/0x80 [ 46.766021][ T7680] __sock_release+0x1fe/0x2b0 [ 46.770673][ T7680] sock_release+0x18/0x20 [ 46.774974][ T7680] sctp_do_peeloff+0x38a/0x470 [ 46.779719][ T7680] ? sctp_copy_sock+0xe50/0xe50 [ 46.784566][ T7680] ? lock_downgrade+0x880/0x880 [ 46.789396][ T7680] sctp_getsockopt_peeloff_common.isra.0+0x8e/0x270 [ 46.795972][ T7680] ? sctp_do_peeloff+0x470/0x470 [ 46.800886][ T7680] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 46.807125][ T7680] ? _copy_from_user+0xdd/0x150 [ 46.811959][ T7680] sctp_getsockopt+0x1ec1/0x6741 [ 46.816887][ T7680] ? __lock_acquire+0x548/0x3fb0 [ 46.821802][ T7680] ? _parse_integer+0x190/0x190 [ 46.826639][ T7680] ? sctp_getsockopt_peeloff_common.isra.0+0x270/0x270 [ 46.833476][ T7680] ? aa_label_sk_perm+0x101/0x560 [ 46.838477][ T7680] ? aa_profile_af_perm+0x320/0x320 [ 46.843653][ T7680] ? find_held_lock+0x35/0x130 [ 46.848405][ T7680] ? __fget+0x35a/0x550 [ 46.852550][ T7680] ? lock_downgrade+0x880/0x880 [ 46.857392][ T7680] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 46.863648][ T7680] ? kasan_check_read+0x11/0x20 [ 46.868479][ T7680] ? ___might_sleep+0x163/0x280 [ 46.873313][ T7680] ? __might_sleep+0x95/0x190 [ 46.877988][ T7680] ? debug_lockdep_rcu_enabled+0x71/0xa0 [ 46.883593][ T7680] ? aa_sk_perm+0x288/0x880 [ 46.888072][ T7680] ? aa_sock_opt_perm.isra.0+0xa1/0x130 [ 46.893589][ T7680] sock_common_getsockopt+0x9a/0xe0 [ 46.898801][ T7680] ? sock_common_getsockopt+0x9a/0xe0 [ 46.904170][ T7680] __sys_getsockopt+0x168/0x250 [ 46.909013][ T7680] ? kernel_setsockopt+0x1e0/0x1e0 [ 46.914123][ T7680] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 46.919565][ T7680] ? do_syscall_64+0x26/0x610 [ 46.924231][ T7680] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.930267][ T7680] ? do_syscall_64+0x26/0x610 [ 46.934926][ T7680] __x64_sys_getsockopt+0xbe/0x150 [ 46.940010][ T7680] do_syscall_64+0x103/0x610 [ 46.944604][ T7680] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 46.950488][ T7680] RIP: 0033:0x446679 [ 46.954365][ T7680] Code: e8 6c b4 02 00 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 2b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 46.973938][ T7680] RSP: 002b:00007f47f49ded88 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 [ 46.982322][ T7680] RAX: ffffffffffffffda RBX: 00000000006dbc38 RCX: 0000000000446679 [ 46.990297][ T7680] RDX: 0000000000000066 RSI: 0000000000000084 RDI: 0000000000000003 [ 46.998262][ T7680] RBP: 00000000006dbc30 R08: 0000000020000140 R09: 0000000000000038 [ 47.006230][ T7680] R10: 0000000020000040 R11: 0000000000000246 R12: 00000000006dbc3c [ 47.014174][ T7680] R13: 00007f47f49ded90 R14: 0000000000000004 R15: 20c49ba5e353f7cf [ 47.022144][ T7680] Modules linked in: [ 47.026317][ T7680] ---[ end trace dfa9a15945f164b7 ]--- [ 47.031890][ T7680] RIP: 0010:sctp_assoc_rwnd_increase+0x34/0x520 [ 47.038164][ T7680] Code: 41 54 49 89 fc 53 89 f3 48 83 ec 10 e8 95 90 f1 fa 49 8d bc 24 60 06 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 2f 04 00 00 45 8b ac 24 60 06 [ 47.058034][ T7680] RSP: 0018:ffff88808da476f8 EFLAGS: 00010203 [ 47.064074][ T7680] RAX: dffffc0000000000 RBX: 0000000000000000 RCX: 0000000000000001 [ 47.072059][ T7680] RDX: 00000000000000cb RSI: ffffffff867ecd5b RDI: 000000000000065f [ 47.080175][ T7680] RBP: ffff88808da47730 R08: ffff88808c5d64c0 R09: ffff88808c5d6d88 [ 47.088293][ T7680] R10: 0000000000000000 R11: 0000000000000000 R12: ffffffffffffffff [ 47.096386][ T7680] R13: 0000000000000000 R14: ffff88808c4d6f00 R15: 0000000000000000 [ 47.104519][ T7680] FS: 00007f47f49df700(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 47.113481][ T7680] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 47.120093][ T7680] CR2: 0000000020000044 CR3: 0000000097508000 CR4: 00000000001406f0 [ 47.128204][ T7680] Kernel panic - not syncing: Fatal exception [ 47.134931][ T7680] Kernel Offset: disabled [ 47.139256][ T7680] Rebooting in 86400 seconds..