[....] Starting enhanced syslogd: rsyslogd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [ 29.523275] kauditd_printk_skb: 7 callbacks suppressed [ 29.523287] audit: type=1800 audit(1542391713.152:29): pid=5889 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 [ 29.548479] audit: type=1800 audit(1542391713.152:30): pid=5889 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 '10.128.0.24' (ECDSA) to the list of known hosts. 2018/11/16 18:09:17 parsed 1 programs 2018/11/16 18:09:19 executed programs: 0 syzkaller login: [ 76.371293] IPVS: ftp: loaded support on port[0] = 21 [ 76.628305] bridge0: port 1(bridge_slave_0) entered blocking state [ 76.635300] bridge0: port 1(bridge_slave_0) entered disabled state [ 76.642323] device bridge_slave_0 entered promiscuous mode [ 76.661996] bridge0: port 2(bridge_slave_1) entered blocking state [ 76.668535] bridge0: port 2(bridge_slave_1) entered disabled state [ 76.675738] device bridge_slave_1 entered promiscuous mode [ 76.693258] IPv6: ADDRCONF(NETDEV_UP): veth0_to_bridge: link is not ready [ 76.711228] IPv6: ADDRCONF(NETDEV_UP): veth1_to_bridge: link is not ready [ 76.762124] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 76.782467] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 76.859984] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 76.867511] team0: Port device team_slave_0 added [ 76.884934] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 76.892050] team0: Port device team_slave_1 added [ 76.908638] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 76.931080] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 76.949773] IPv6: ADDRCONF(NETDEV_CHANGE): veth0_to_bridge: link becomes ready [ 76.970060] IPv6: ADDRCONF(NETDEV_CHANGE): veth1_to_bridge: link becomes ready [ 77.117575] bridge0: port 2(bridge_slave_1) entered blocking state [ 77.124008] bridge0: port 2(bridge_slave_1) entered forwarding state [ 77.130947] bridge0: port 1(bridge_slave_0) entered blocking state [ 77.137335] bridge0: port 1(bridge_slave_0) entered forwarding state [ 77.661011] 8021q: adding VLAN 0 to HW filter on device bond0 [ 77.713688] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 77.766796] IPv6: ADDRCONF(NETDEV_UP): veth1: link is not ready [ 77.772928] IPv6: ADDRCONF(NETDEV_CHANGE): veth1: link becomes ready [ 77.781875] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 77.829281] 8021q: adding VLAN 0 to HW filter on device team0 [ 78.212446] kasan: CONFIG_KASAN_INLINE enabled [ 78.217686] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 78.225561] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 78.231801] CPU: 1 PID: 6327 Comm: syz-executor0 Not tainted 4.20.0-rc2+ #240 [ 78.239055] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 78.248400] RIP: 0010:rdma_listen+0x357/0x990 [ 78.252877] Code: 4c 8b ab c8 01 00 00 31 f6 48 c7 c7 60 3b db 89 e8 9e eb 25 02 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 64 05 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b [ 78.271763] RSP: 0018:ffff8881ba5ff920 EFLAGS: 00010202 [ 78.277107] RAX: dffffc0000000000 RBX: ffff8881ba7bf100 RCX: 0000000000000000 [ 78.284357] RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000008 [ 78.291850] RBP: ffff8881ba5ff9c0 R08: fffffbfff13b6775 R09: fffffbfff13b6774 [ 78.299108] R10: ffff8881ba5ff910 R11: ffffffff89db3ba3 R12: 1ffff110374bff27 [ 78.306359] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881d8d05400 [ 78.313615] FS: 0000000000000000(0000) GS:ffff8881daf00000(0063) knlGS:00000000f7fb4b40 [ 78.321821] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 78.327681] CR2: 000000000814b055 CR3: 00000001cf2ac000 CR4: 00000000001406e0 [ 78.334965] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.342220] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.349476] Call Trace: [ 78.352054] ? rdma_resolve_addr+0x2870/0x2870 [ 78.356632] ucma_listen+0x1a4/0x260 [ 78.360347] ? ucma_notify+0x210/0x210 [ 78.364225] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 78.369746] ? _copy_from_user+0xdf/0x150 [ 78.373880] ? ucma_notify+0x210/0x210 [ 78.377749] ucma_write+0x365/0x460 [ 78.381480] ? ucma_open+0x3f0/0x3f0 [ 78.385199] ? find_held_lock+0x36/0x1c0 [ 78.389261] __vfs_write+0x119/0x9f0 [ 78.392966] ? debug_lockdep_rcu_enabled+0x77/0x90 [ 78.397877] ? ucma_open+0x3f0/0x3f0 [ 78.401571] ? kernel_read+0x120/0x120 [ 78.405439] ? apparmor_path_rmdir+0x30/0x30 [ 78.409842] ? trace_hardirqs_off_caller+0x310/0x310 [ 78.414930] ? apparmor_file_permission+0x24/0x30 [ 78.419769] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 78.425303] ? security_file_permission+0x1c2/0x220 [ 78.430303] ? rw_verify_area+0x118/0x360 [ 78.434436] vfs_write+0x1fc/0x560 [ 78.437985] ksys_write+0x101/0x260 [ 78.441601] ? __ia32_sys_read+0xb0/0xb0 [ 78.445650] ? trace_hardirqs_off_caller+0x310/0x310 [ 78.450754] __ia32_sys_write+0x71/0xb0 [ 78.454714] do_fast_syscall_32+0x34d/0xfb2 [ 78.459100] ? do_int80_syscall_32+0x890/0x890 [ 78.463669] ? entry_SYSENTER_compat+0x68/0x7f [ 78.468253] ? trace_hardirqs_off_caller+0xbb/0x310 [ 78.473252] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 78.478076] ? trace_hardirqs_on_caller+0x310/0x310 [ 78.483072] ? prepare_exit_to_usermode+0x3b0/0x3b0 [ 78.488078] ? post_copy_siginfo_from_user.isra.25.part.26+0x250/0x250 [ 78.494747] ? __switch_to_asm+0x40/0x70 [ 78.498795] ? __switch_to_asm+0x34/0x70 [ 78.502839] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 78.507669] entry_SYSENTER_compat+0x70/0x7f [ 78.512063] RIP: 0023:0xf7fd9a29 [ 78.515412] Code: 85 d2 74 02 89 0a 5b 5d c3 8b 04 24 c3 8b 14 24 c3 8b 3c 24 c3 90 90 90 90 90 90 90 90 90 90 90 90 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 eb 0d 90 90 90 90 90 90 90 90 90 90 90 90 [ 78.534322] RSP: 002b:00000000f7fb40cc EFLAGS: 00000296 ORIG_RAX: 0000000000000004 [ 78.542028] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 0000000020000200 [ 78.549280] RDX: 0000000000000010 RSI: 0000000000000000 RDI: 0000000000000000 [ 78.556551] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 [ 78.563801] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 [ 78.571051] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 [ 78.578316] Modules linked in: [ 78.584257] ---[ end trace 4aa080a97dcb4ada ]--- [ 78.589193] RIP: 0010:rdma_listen+0x357/0x990 [ 78.593725] Code: 4c 8b ab c8 01 00 00 31 f6 48 c7 c7 60 3b db 89 e8 9e eb 25 02 48 b8 00 00 00 00 00 fc ff df 49 8d 7d 08 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 64 05 00 00 48 b8 00 00 00 00 00 fc ff df 4d 8b [ 78.613011] RSP: 0018:ffff8881ba5ff920 EFLAGS: 00010202 [ 78.618419] RAX: dffffc0000000000 RBX: ffff8881ba7bf100 RCX: 0000000000000000 [ 78.625712] RDX: 0000000000000001 RSI: 0000000000000004 RDI: 0000000000000008 [ 78.632976] RBP: ffff8881ba5ff9c0 R08: fffffbfff13b6775 R09: fffffbfff13b6774 [ 78.640272] R10: ffff8881ba5ff910 R11: ffffffff89db3ba3 R12: 1ffff110374bff27 [ 78.647660] R13: 0000000000000000 R14: 0000000000000000 R15: ffff8881d8d05400 [ 78.654959] FS: 0000000000000000(0000) GS:ffff8881daf00000(0063) knlGS:00000000f7fb4b40 [ 78.663211] CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 [ 78.669480] CR2: 000000000814b055 CR3: 00000001cf2ac000 CR4: 00000000001406e0 [ 78.676805] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 78.684108] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 78.691653] Kernel panic - not syncing: Fatal exception [ 78.697940] Kernel Offset: disabled [ 78.701563] Rebooting in 86400 seconds..