[ 38.779222][ T26] audit: type=1800 audit(1553053116.972:26): pid=7669 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 38.807651][ T26] audit: type=1800 audit(1553053116.972:27): pid=7669 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="restorecond" dev="sda1" ino=2436 res=0 [ 38.834346][ T26] audit: type=1800 audit(1553053116.982:28): pid=7669 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. [ 39.565166][ T26] audit: type=1800 audit(1553053117.792:29): pid=7669 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 Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added '10.128.10.16' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 50.297918][ T7820] kasan: CONFIG_KASAN_INLINE enabled [ 50.303482][ T7820] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 50.311602][ T7820] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 50.318566][ T7820] CPU: 0 PID: 7820 Comm: syz-executor418 Not tainted 5.0.0+ #61 [ 50.327164][ T7820] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 50.337236][ T7820] RIP: 0010:tipc_mcast_filter_msg+0x21b/0x13d0 [ 50.343377][ T7820] Code: 45 c0 0f 84 39 06 00 00 48 89 5d 98 e8 ce ab a5 fa 49 8d bc 24 c8 00 00 00 48 b9 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 9a 0e 00 00 49 8b 9c 24 c8 00 00 00 48 be 00 00 [ 50.362993][ T7820] RSP: 0018:ffff8880959defc8 EFLAGS: 00010202 [ 50.369043][ T7820] RAX: 0000000000000019 RBX: ffff888081258a48 RCX: dffffc0000000000 [ 50.377002][ T7820] RDX: 0000000000000000 RSI: ffffffff86cab862 RDI: 00000000000000c8 [ 50.384975][ T7820] RBP: ffff8880959df030 R08: ffff8880813d0200 R09: ffffed1015d05bc8 [ 50.392970][ T7820] R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: 0000000000000000 [ 50.401040][ T7820] R13: 000000000000002c R14: 0000000000000000 R15: ffff888081258a48 [ 50.409000][ T7820] FS: 000000000106a880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 50.417916][ T7820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.424571][ T7820] CR2: 0000000020001cc0 CR3: 0000000094a20000 CR4: 00000000001406f0 [ 50.432529][ T7820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.440513][ T7820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 50.448467][ T7820] Call Trace: [ 50.451744][ T7820] tipc_sk_filter_rcv+0x182d/0x34f0 [ 50.456928][ T7820] ? tipc_sk_overlimit2+0xa0/0xa0 [ 50.461942][ T7820] ? __local_bh_enable_ip+0x15a/0x270 [ 50.467319][ T7820] ? lockdep_hardirqs_on+0x19e/0x5d0 [ 50.472593][ T7820] ? tipc_sk_rcv+0x562/0x25a0 [ 50.477276][ T7820] ? __local_bh_enable_ip+0x15a/0x270 [ 50.482636][ T7820] tipc_sk_rcv+0xc45/0x25a0 [ 50.487129][ T7820] ? lock_downgrade+0x880/0x880 [ 50.491963][ T7820] ? tipc_sk_filter_rcv+0x34f0/0x34f0 [ 50.497319][ T7820] ? find_held_lock+0x35/0x130 [ 50.502074][ T7820] ? __local_bh_enable_ip+0x15a/0x270 [ 50.507438][ T7820] ? lockdep_hardirqs_on+0x418/0x5d0 [ 50.512713][ T7820] ? tipc_sk_mcast_rcv+0x70c/0x1020 [ 50.517898][ T7820] ? trace_hardirqs_on+0x67/0x230 [ 50.522911][ T7820] ? tipc_sk_mcast_rcv+0x70c/0x1020 [ 50.528095][ T7820] ? __local_bh_enable_ip+0x15a/0x270 [ 50.533453][ T7820] tipc_sk_mcast_rcv+0x724/0x1020 [ 50.538483][ T7820] ? tipc_sk_rcv+0x25a0/0x25a0 [ 50.543242][ T7820] ? tipc_msg_reassemble+0x29d/0x570 [ 50.548531][ T7820] ? tipc_msg_build+0x1250/0x1250 [ 50.553542][ T7820] ? lockdep_init_map+0x1be/0x6d0 [ 50.558570][ T7820] tipc_mcast_xmit+0x7fe/0x1200 [ 50.563430][ T7820] ? tipc_bcast_dec_bearer_dst_cnt+0x850/0x850 [ 50.569577][ T7820] tipc_sendmcast+0xb36/0xfc0 [ 50.574257][ T7820] ? tipc_poll+0x7a0/0x7a0 [ 50.578657][ T7820] ? lock_downgrade+0x880/0x880 [ 50.583494][ T7820] ? do_wait_intr_irq+0x2b0/0x2b0 [ 50.588500][ T7820] ? __bfs+0x28/0x590 [ 50.592464][ T7820] ? check_usage_backwards+0x127/0x360 [ 50.597923][ T7820] ? __kernel_text_address+0xd/0x40 [ 50.603130][ T7820] ? print_shortest_lock_dependencies+0x90/0x90 [ 50.609358][ T7820] __tipc_sendmsg+0x10df/0x18d0 [ 50.614202][ T7820] ? __tipc_sendmsg+0x10df/0x18d0 [ 50.619215][ T7820] ? tipc_sendmcast+0xfc0/0xfc0 [ 50.624051][ T7820] ? kasan_check_read+0x11/0x20 [ 50.628892][ T7820] ? mark_lock+0x542/0x1380 [ 50.633392][ T7820] ? print_shortest_lock_dependencies+0x90/0x90 [ 50.639641][ T7820] ? mark_held_locks+0xa4/0xf0 [ 50.644396][ T7820] ? __local_bh_enable_ip+0x15a/0x270 [ 50.649751][ T7820] ? lock_sock_nested+0xe2/0x120 [ 50.654672][ T7820] ? __local_bh_enable_ip+0x15a/0x270 [ 50.660047][ T7820] ? lockdep_hardirqs_on+0x418/0x5d0 [ 50.665314][ T7820] ? lock_sock_nested+0x9a/0x120 [ 50.670245][ T7820] ? trace_hardirqs_on+0x67/0x230 [ 50.675246][ T7820] ? lock_sock_nested+0x9a/0x120 [ 50.680167][ T7820] ? __local_bh_enable_ip+0x15a/0x270 [ 50.685523][ T7820] tipc_sendmsg+0x53/0x80 [ 50.689835][ T7820] ? __tipc_sendmsg+0x18d0/0x18d0 [ 50.694844][ T7820] sock_sendmsg+0xdd/0x130 [ 50.699248][ T7820] ___sys_sendmsg+0x806/0x930 [ 50.703910][ T7820] ? copy_msghdr_from_user+0x430/0x430 [ 50.709355][ T7820] ? __lock_acquire+0x548/0x3fb0 [ 50.714283][ T7820] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.720523][ T7820] ? __this_cpu_preempt_check+0x3a/0x270 [ 50.726152][ T7820] ? __fd_install+0x1bc/0x640 [ 50.730815][ T7820] ? find_held_lock+0x35/0x130 [ 50.735565][ T7820] ? __fd_install+0x1bc/0x640 [ 50.740227][ T7820] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 50.746448][ T7820] ? __fget_light+0x1a9/0x230 [ 50.751134][ T7820] ? __fdget+0x1b/0x20 [ 50.755193][ T7820] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 50.761436][ T7820] __sys_sendmsg+0x105/0x1d0 [ 50.766017][ T7820] ? __ia32_sys_shutdown+0x80/0x80 [ 50.771114][ T7820] ? __sys_socketpair+0x43f/0x5e0 [ 50.776141][ T7820] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 50.781592][ T7820] ? do_syscall_64+0x26/0x610 [ 50.786253][ T7820] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.792305][ T7820] ? do_syscall_64+0x26/0x610 [ 50.796967][ T7820] __x64_sys_sendmsg+0x78/0xb0 [ 50.801714][ T7820] do_syscall_64+0x103/0x610 [ 50.806287][ T7820] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 50.812263][ T7820] RIP: 0033:0x4401c9 [ 50.816153][ T7820] Code: 18 89 d0 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 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 fb 13 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 50.835830][ T7820] RSP: 002b:00007ffd887fa9d8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e [ 50.844231][ T7820] RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004401c9 [ 50.852192][ T7820] RDX: 0000000000000000 RSI: 0000000020002140 RDI: 0000000000000003 [ 50.860169][ T7820] RBP: 00000000006ca018 R08: 0000000000000000 R09: 00000000004002c8 [ 50.868157][ T7820] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000401a50 [ 50.876120][ T7820] R13: 0000000000401ae0 R14: 0000000000000000 R15: 0000000000000000 [ 50.884097][ T7820] Modules linked in: [ 50.888064][ T7820] ---[ end trace ba79875754e1708f ]--- [ 50.893547][ T7820] RIP: 0010:tipc_mcast_filter_msg+0x21b/0x13d0 [ 50.899720][ T7820] Code: 45 c0 0f 84 39 06 00 00 48 89 5d 98 e8 ce ab a5 fa 49 8d bc 24 c8 00 00 00 48 b9 00 00 00 00 00 fc ff df 48 89 f8 48 c1 e8 03 <80> 3c 08 00 0f 85 9a 0e 00 00 49 8b 9c 24 c8 00 00 00 48 be 00 00 [ 50.919363][ T7820] RSP: 0018:ffff8880959defc8 EFLAGS: 00010202 [ 50.925445][ T7820] RAX: 0000000000000019 RBX: ffff888081258a48 RCX: dffffc0000000000 [ 50.933472][ T7820] RDX: 0000000000000000 RSI: ffffffff86cab862 RDI: 00000000000000c8 [ 50.941468][ T7820] RBP: ffff8880959df030 R08: ffff8880813d0200 R09: ffffed1015d05bc8 [ 50.949485][ T7820] R10: ffffed1015d05bc7 R11: ffff8880ae82de3b R12: 0000000000000000 [ 50.957485][ T7820] R13: 000000000000002c R14: 0000000000000000 R15: ffff888081258a48 [ 50.965506][ T7820] FS: 000000000106a880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 50.974478][ T7820] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 50.981105][ T7820] CR2: 0000000020001cc0 CR3: 0000000094a20000 CR4: 00000000001406f0 [ 50.989173][ T7820] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 50.997258][ T7820] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 51.005302][ T7820] Kernel panic - not syncing: Fatal exception in interrupt [ 51.013892][ T7820] Kernel Offset: disabled [ 51.023311][ T7820] Rebooting in 86400 seconds..