[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. [ 36.875110] audit: type=1800 audit(1569062431.953:33): pid=7275 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rc.local" dev="sda1" ino=2465 res=0 [ 36.898136] audit: type=1800 audit(1569062431.953:34): pid=7275 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="rmnologin" dev="sda1" ino=2456 res=0 Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 41.705865] audit: type=1400 audit(1569062436.783:35): avc: denied { map } for pid=7451 comm="bash" path="/bin/bash" dev="sda1" ino=1457 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 Warning: Permanently added '10.128.0.101' (ECDSA) to the list of known hosts. [ 48.216128] audit: type=1400 audit(1569062443.293:36): avc: denied { map } for pid=7463 comm="syz-executor446" path="/root/syz-executor446182601" dev="sda1" ino=16483 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 48.236052] IPVS: ftp: loaded support on port[0] = 21 [ 48.294343] chnl_net:caif_netlink_parms(): no params data found [ 48.323208] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.329898] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.336948] device bridge_slave_0 entered promiscuous mode [ 48.344952] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.351328] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.358339] device bridge_slave_1 entered promiscuous mode [ 48.372332] bond0: Enslaving bond_slave_0 as an active interface with an up link [ 48.381455] bond0: Enslaving bond_slave_1 as an active interface with an up link [ 48.397749] IPv6: ADDRCONF(NETDEV_UP): team_slave_0: link is not ready [ 48.405280] team0: Port device team_slave_0 added [ 48.410629] IPv6: ADDRCONF(NETDEV_UP): team_slave_1: link is not ready [ 48.417950] team0: Port device team_slave_1 added [ 48.424400] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_0: link is not ready [ 48.431576] IPv6: ADDRCONF(NETDEV_UP): bridge_slave_1: link is not ready [ 48.486048] device hsr_slave_0 entered promiscuous mode [ 48.544723] device hsr_slave_1 entered promiscuous mode [ 48.584415] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_0: link is not ready [ 48.591319] IPv6: ADDRCONF(NETDEV_UP): hsr_slave_1: link is not ready [ 48.604534] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.610945] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.617783] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.624205] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.653336] IPv6: ADDRCONF(NETDEV_UP): bond0: link is not ready [ 48.660329] 8021q: adding VLAN 0 to HW filter on device bond0 [ 48.668603] IPv6: ADDRCONF(NETDEV_UP): veth0: link is not ready [ 48.677211] IPv6: ADDRCONF(NETDEV_CHANGE): veth0: link becomes ready [ 48.696625] bridge0: port 1(bridge_slave_0) entered disabled state [ 48.703738] bridge0: port 2(bridge_slave_1) entered disabled state [ 48.711277] IPv6: ADDRCONF(NETDEV_CHANGE): bond0: link becomes ready [ 48.721428] IPv6: ADDRCONF(NETDEV_UP): team0: link is not ready [ 48.727794] 8021q: adding VLAN 0 to HW filter on device team0 [ 48.736627] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_0: link becomes ready [ 48.744541] bridge0: port 1(bridge_slave_0) entered blocking state [ 48.750967] bridge0: port 1(bridge_slave_0) entered forwarding state [ 48.765771] IPv6: ADDRCONF(NETDEV_CHANGE): bridge_slave_1: link becomes ready [ 48.773443] bridge0: port 2(bridge_slave_1) entered blocking state [ 48.779851] bridge0: port 2(bridge_slave_1) entered forwarding state [ 48.787193] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_0: link becomes ready [ 48.795212] IPv6: ADDRCONF(NETDEV_CHANGE): team0: link becomes ready [ 48.805547] IPv6: ADDRCONF(NETDEV_CHANGE): team_slave_1: link becomes ready [ 48.817539] hsr0: Slave A (hsr_slave_0) is not up; please bring it up to get a fully working HSR network [ 48.828222] hsr0: Slave B (hsr_slave_1) is not up; please bring it up to get a fully working HSR network [ 48.838912] IPv6: ADDRCONF(NETDEV_UP): hsr0: link is not ready [ 48.845497] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_0: link becomes ready executing program [ 48.853176] IPv6: ADDRCONF(NETDEV_CHANGE): hsr_slave_1: link becomes ready [ 48.861061] IPv6: ADDRCONF(NETDEV_CHANGE): hsr0: link becomes ready [ 48.873710] IPv6: ADDRCONF(NETDEV_UP): vxcan1: link is not ready [ 48.883995] 8021q: adding VLAN 0 to HW filter on device batadv0 [ 48.965262] kasan: CONFIG_KASAN_INLINE enabled [ 48.969908] kasan: GPF could be caused by NULL-ptr deref or user memory access [ 48.977368] general protection fault: 0000 [#1] PREEMPT SMP KASAN [ 48.983597] CPU: 0 PID: 7463 Comm: syz-executor446 Not tainted 4.19.75 #0 [ 48.990509] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 48.999900] RIP: 0010:release_task+0x100/0x1630 [ 49.004551] Code: 1d 4e 25 f8 07 31 ff 89 de e8 7c b8 2b 00 84 db 0f 84 65 0f 00 00 e8 2f b7 2b 00 49 8d bc 24 90 00 00 00 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 9d 10 00 00 49 8b 9c 24 90 00 00 00 be 04 00 [ 49.023434] RSP: 0018:ffff88808499fa08 EFLAGS: 00010206 [ 49.028778] RAX: 0000000000000012 RBX: 0000000000000001 RCX: ffffffff813fbac6 [ 49.036031] RDX: 0000000000000000 RSI: ffffffff813fab51 RDI: 0000000000000090 [ 49.043288] RBP: ffff88808499fa90 R08: ffff888090b28500 R09: ffffed1015d04733 [ 49.050541] R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000 [ 49.057807] R13: 0000000000000010 R14: dffffc0000000000 R15: ffff888085c3e540 [ 49.065060] FS: 00005555571fc880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 49.073279] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.079141] CR2: 00000000004c6b88 CR3: 00000000a03c8000 CR4: 00000000001406f0 [ 49.086393] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.093645] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.100900] Call Trace: [ 49.103475] ? _raw_spin_unlock_irq+0x28/0x90 [ 49.107955] ? lockdep_hardirqs_on+0x415/0x5d0 [ 49.112521] ? trace_hardirqs_on+0x67/0x220 [ 49.116826] wait_consider_task+0x2c95/0x3910 [ 49.121305] ? release_task+0x1630/0x1630 [ 49.125431] ? lock_acquire+0x16f/0x3f0 [ 49.129477] ? do_wait+0x3aa/0x9d0 [ 49.133003] ? kasan_check_write+0x14/0x20 [ 49.137220] do_wait+0x439/0x9d0 [ 49.140571] ? wait_consider_task+0x3910/0x3910 [ 49.145225] kernel_wait4+0x171/0x290 [ 49.149006] ? __ia32_sys_waitid+0x140/0x140 [ 49.153410] ? task_stopped_code+0x180/0x180 [ 49.157815] ? find_held_lock+0x35/0x130 [ 49.161872] ? __do_page_fault+0x676/0xe90 [ 49.166101] __do_sys_wait4+0x147/0x160 [ 49.170061] ? kernel_wait4+0x290/0x290 [ 49.174022] ? __sanitizer_cov_trace_const_cmp1+0x1a/0x20 [ 49.180152] ? up_read+0x1a/0x110 [ 49.183587] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 49.189106] ? __do_page_fault+0x484/0xe90 [ 49.193329] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.198108] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 49.202845] ? do_syscall_64+0x26/0x620 [ 49.206805] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.212157] ? do_syscall_64+0x26/0x620 [ 49.216114] __x64_sys_wait4+0x97/0xf0 [ 49.219989] do_syscall_64+0xfd/0x620 [ 49.223779] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 49.228957] RIP: 0033:0x40207a [ 49.232133] Code: c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 44 00 00 8b 05 be 8a 2d 00 85 c0 75 36 45 31 d2 48 63 d2 48 63 ff b8 3d 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 06 c3 0f 1f 44 00 00 48 c7 c2 d0 ff ff ff f7 [ 49.251018] RSP: 002b:00007ffdb8b41518 EFLAGS: 00000246 ORIG_RAX: 000000000000003d [ 49.258708] RAX: ffffffffffffffda RBX: 0000000000001d28 RCX: 000000000040207a [ 49.265960] RDX: 0000000040000000 RSI: 00007ffdb8b41524 RDI: ffffffffffffffff [ 49.273210] RBP: 00000000006d3018 R08: 0000000000000000 R09: 00005555571fc880 [ 49.280458] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403030 [ 49.287708] R13: 00000000004030c0 R14: 0000000000000000 R15: 0000000000000000 [ 49.295048] Modules linked in: [ 49.299269] ---[ end trace bd3fe87a4564f788 ]--- [ 49.304088] RIP: 0010:release_task+0x100/0x1630 [ 49.308758] Code: 1d 4e 25 f8 07 31 ff 89 de e8 7c b8 2b 00 84 db 0f 84 65 0f 00 00 e8 2f b7 2b 00 49 8d bc 24 90 00 00 00 48 89 f8 48 c1 e8 03 <42> 80 3c 30 00 0f 85 9d 10 00 00 49 8b 9c 24 90 00 00 00 be 04 00 [ 49.327810] RSP: 0018:ffff88808499fa08 EFLAGS: 00010206 [ 49.333163] RAX: 0000000000000012 RBX: 0000000000000001 RCX: ffffffff813fbac6 [ 49.340494] RDX: 0000000000000000 RSI: ffffffff813fab51 RDI: 0000000000000090 [ 49.347787] RBP: ffff88808499fa90 R08: ffff888090b28500 R09: ffffed1015d04733 [ 49.355065] R10: ffffed1015d04732 R11: ffff8880ae823993 R12: 0000000000000000 [ 49.362325] R13: 0000000000000010 R14: dffffc0000000000 R15: ffff888085c3e540 [ 49.369855] FS: 00005555571fc880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 [ 49.378101] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 49.383993] CR2: 00000000004c6b88 CR3: 00000000a03c8000 CR4: 00000000001406f0 [ 49.391346] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 [ 49.398624] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 [ 49.405978] Kernel panic - not syncing: Fatal exception [ 49.412549] Kernel Offset: disabled [ 49.416170] Rebooting in 86400 seconds..