[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [ 37.769075] audit: type=1800 audit(1550949829.957:25): pid=7627 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="cron" dev="sda1" ino=2414 res=0 [ 37.803843] audit: type=1800 audit(1550949829.957:26): pid=7627 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="startpar" name="mcstrans" dev="sda1" ino=2457 res=0 [ 37.824854] audit: type=1800 audit(1550949829.967:27): pid=7627 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 '10.128.0.61' (ECDSA) to the list of known hosts. 2019/02/23 19:23:58 parsed 1 programs 2019/02/23 19:24:00 executed programs: 0 syzkaller login: [ 47.883583] IPVS: ftp: loaded support on port[0] = 21 [ 47.944665] chnl_net:caif_netlink_parms(): no params data found [ 47.976585] bridge0: port 1(bridge_slave_0) entered blocking state [ 47.983257] bridge0: port 1(bridge_slave_0) entered disabled state [ 47.990493] device bridge_slave_0 entered promiscuous mode [ 47.998083] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.004464] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.011657] device bridge_slave_1 entered promiscuous mode [ 48.029019] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.037852] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.054421] team0: Port device team_slave_0 added [ 48.060875] team0: Port device team_slave_1 added [ 48.108479] device hsr_slave_0 entered promiscuous mode [ 48.166494] device hsr_slave_1 entered promiscuous mode [ 48.243473] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.249938] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.256835] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.263162] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.294377] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.305974] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.325311] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.332811] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.340900] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.351012] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.360169] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.368218] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.374544] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.387005] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.394682] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.401088] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.413381] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.421888] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.431206] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.442177] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready [ 48.454432] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.465801] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.472997] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.489377] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.542219] IPv6: ADDRCONF(NETDEV_CHANGE): rose0: link becomes ready [ 48.676451] kasan: CONFIG_KASAN_INLINE enabled [ 48.681155] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 48.688563] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 48.694814] CPU: 1 PID: 7793 Comm: syz-executor.0 Not tainted 5.0.0-rc7+ #77 [ 48.701976] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.711319] RIP: 0010:rose_send_frame+0x1a8/0x280 [ 48.716142] Code: c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 20 49 8d bc 24 58 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 7e 49 8b 94 24 58 03 00 00 e9 b8 fe ff ff e8 90 4d [ 48.735034] RSP: 0018:ffff8880ae907ae8 EFLAGS: 00010202 [ 48.740376] RAX: dffffc0000000000 RBX: ffff88809aab4800 RCX: ffffffff8637955b [ 48.747627] RDX: 000000000000006b RSI: ffffffff8637968c RDI: 0000000000000358 [ 48.754876] RBP: ffff8880ae907b18 R08: ffff8880877ac480 R09: ffffed1013c53fc5 [ 48.762121] R10: ffffed1013c53fc4 R11: ffff88809e29fe23 R12: 0000000000000000 [ 48.769368] R13: 0000000000000078 R14: 0000000000000005 R15: ffff88808b3cd400 [ 48.776634] FS: 00000000016a0940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 48.784837] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 48.790709] CR2: 00007ffd1eac9fc8 CR3: 0000000098fce000 CR4: 00000000001406e0 [ 48.797961] Call Trace: [ 48.800525] [ 48.802659] rose_transmit_clear_request+0x1de/0x2a0 [ 48.807742] ? __local_bh_enable_ip+0x15a/0x270 [ 48.812417] rose_rx_call_request+0x4ea/0x1990 [ 48.816993] ? rose_dev_get+0x21e/0x320 [ 48.820945] ? rose_release+0x410/0x410 [ 48.824900] rose_loopback_timer+0x26a/0x3f0 [ 48.829307] call_timer_fn+0x190/0x720 [ 48.833189] ? rose_link_rx_restart.cold+0xa9/0xa9 [ 48.838095] ? process_timeout+0x40/0x40 [ 48.842135] ? run_timer_softirq+0x647/0x1700 [ 48.846622] ? trace_hardirqs_on+0x67/0x230 [ 48.850926] ? kasan_check_read+0x11/0x20 [ 48.855053] ? rose_link_rx_restart.cold+0xa9/0xa9 [ 48.859960] run_timer_softirq+0x652/0x1700 [ 48.864260] ? add_timer+0xbe0/0xbe0 [ 48.867974] ? __lock_is_held+0xb6/0x140 [ 48.872015] ? check_preemption_disabled+0x48/0x290 [ 48.877014] ? rcu_lockdep_current_cpu_online+0xe3/0x130 [ 48.882459] __do_softirq+0x266/0x95a [ 48.886245] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 48.891778] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 48.897307] irq_exit+0x180/0x1d0 [ 48.900756] smp_apic_timer_interrupt+0x14a/0x570 [ 48.905582] apic_timer_interrupt+0xf/0x20 [ 48.909822] [ 48.912046] RIP: 0010:__find_get_block+0x289/0xcf0 [ 48.916968] Code: ff df 48 c1 ea 03 80 3c 02 00 0f 85 7b 09 00 00 48 83 3d e9 04 d4 06 00 0f 84 a9 07 00 00 e8 4e 66 b1 ff fb 66 0f 1f 44 00 00 <4d> 85 ff 0f 84 c1 01 00 00 e8 39 66 b1 ff 0f 1f 44 00 00 e8 2f 66 [ 48.935864] RSP: 0018:ffff88808a18f8d0 EFLAGS: 00000293 ORIG_RAX: ffffffffffffff13 [ 48.943554] RAX: ffff8880877ac480 RBX: ffff8880974bd5e8 RCX: 1ffff11010ef59a9 [ 48.950807] RDX: 0000000000000000 RSI: ffffffff81be7e22 RDI: ffff8880877accfc [ 48.958055] RBP: ffff88808a18f930 R08: ffff8880877ac480 R09: ffff8880877acd48 [ 48.965309] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 48.972564] R13: 00000000000025e8 R14: 00000000000293c0 R15: ffff8880974bd5e8 [ 48.979834] ? __find_get_block+0x282/0xcf0 [ 48.984154] __getblk_gfp+0x38/0x960 [ 48.987849] ? __lock_is_held+0xb6/0x140 [ 48.991886] ? check_preemption_disabled+0x48/0x290 [ 48.996880] ext4_getblk+0x177/0x510 [ 49.000573] ? ext4_iomap_begin+0xfe0/0xfe0 [ 49.004892] ? kasan_check_write+0x14/0x20 [ 49.009107] ext4_bread+0x8f/0x230 [ 49.012639] ? ext4_getblk+0x510/0x510 [ 49.016510] __ext4_read_dirblock+0x34/0x980 [ 49.020914] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.026434] ext4_add_entry+0x585/0xb70 [ 49.030388] ? make_indexed_dir+0x1310/0x1310 [ 49.034864] ? memcpy+0x46/0x50 [ 49.038128] ext4_mkdir+0x73f/0xdf0 [ 49.041747] ? ext4_init_dot_dotdot+0x520/0x520 [ 49.046395] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.051908] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.057424] ? security_inode_permission+0xd5/0x110 [ 49.062431] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.067958] ? security_inode_mkdir+0xee/0x120 [ 49.072520] vfs_mkdir+0x433/0x690 [ 49.076050] do_mkdirat+0x234/0x2a0 [ 49.079659] ? __ia32_sys_mknod+0xb0/0xb0 [ 49.083789] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.088541] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.093881] ? do_syscall_64+0x26/0x610 [ 49.097834] ? lockdep_hardirqs_on+0x415/0x5d0 [ 49.102393] __x64_sys_mkdir+0x5c/0x80 [ 49.106262] do_syscall_64+0x103/0x610 [ 49.110139] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.115308] RIP: 0033:0x457247 [ 49.118488] Code: 1f 40 00 b8 5a 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d c4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 b8 53 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5d c4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 [ 49.137371] RSP: 002b:00007ffd1eacb288 EFLAGS: 00000206 ORIG_RAX: 0000000000000053 [ 49.145064] RAX: ffffffffffffffda RBX: 000000000000bdd8 RCX: 0000000000457247 [ 49.152316] RDX: 00007ffd1eacb2d3 RSI: 00000000000001ff RDI: 00007ffd1eacb2d0 [ 49.159569] RBP: 000000000000000a R08: 0000000000000000 R09: 0000000000000003 [ 49.166831] R10: 0000000000000064 R11: 0000000000000206 R12: 0000000000000005 [ 49.174081] R13: 000000000000bdd2 R14: 0000000000000003 R15: 0000000000000000 [ 49.181341] Modules linked in: [ 49.184585] ---[ end trace 9082cc20edfb31d8 ]--- [ 49.189368] RIP: 0010:rose_send_frame+0x1a8/0x280 [ 49.194193] Code: c1 ea 03 80 3c 02 00 0f 85 8d 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 63 20 49 8d bc 24 58 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 7e 49 8b 94 24 58 03 00 00 e9 b8 fe ff ff e8 90 4d [ 49.213236] RSP: 0018:ffff8880ae907ae8 EFLAGS: 00010202 [ 49.218626] RAX: dffffc0000000000 RBX: ffff88809aab4800 RCX: ffffffff8637955b [ 49.225882] RDX: 000000000000006b RSI: ffffffff8637968c RDI: 0000000000000358 [ 49.233168] RBP: ffff8880ae907b18 R08: ffff8880877ac480 R09: ffffed1013c53fc5 [ 49.240452] R10: ffffed1013c53fc4 R11: ffff88809e29fe23 R12: 0000000000000000 [ 49.247737] R13: 0000000000000078 R14: 0000000000000005 R15: ffff88808b3cd400 [ 49.255003] FS: 00000000016a0940(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000 [ 49.263282] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.269180] CR2: 00007ffd1eac9fc8 CR3: 0000000098fce000 CR4: 00000000001406e0 [ 49.276485] Kernel panic - not syncing: Fatal exception in interrupt [ 49.284020] Kernel Offset: disabled [ 49.287645] Rebooting in 86400 seconds..