[....] Starting enhanced syslogd: rsyslogd[    9.990370] audit: type=1400 audit(1513454190.645:5): avc:  denied  { syslog } for  pid=2985 comm="rsyslogd" capability=34  scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=capability2 permissive=1
[?25l[?1c7[ ok 8[?25h[?0c.
Starting mcstransd: 
[....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c.
[....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c.

Debian GNU/Linux 7 syzkaller ttyS0

syzkaller login: [   12.779061] audit: type=1400 audit(1513454193.433:6): avc:  denied  { map } for  pid=3123 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 'ci-upstream-kasan-gce-3,10.128.15.205' (ECDSA) to the list of known hosts.
[  685.038609] audit: type=1400 audit(1513454865.693:7): avc:  denied  { map } for  pid=3142 comm="syz-execprog" path="/root/syz-execprog" dev="sda1" ino=16479 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1
2017/12/16 20:07:46 parsed 1 programs
2017/12/16 20:07:46 executed programs: 0
[  685.544795] audit: type=1400 audit(1513454866.194:8): avc:  denied  { map } for  pid=3142 comm="syz-execprog" path="/root/syzkaller-shm061874300" dev="sda1" ino=16482 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:file_t:s0 tclass=file permissive=1
2017/12/16 20:07:51 executed programs: 493
2017/12/16 20:07:56 executed programs: 981
2017/12/16 20:08:01 executed programs: 1471
2017/12/16 20:08:06 executed programs: 1948
2017/12/16 20:08:11 executed programs: 2432
2017/12/16 20:08:16 executed programs: 2927
2017/12/16 20:08:21 executed programs: 3424
2017/12/16 20:08:26 executed programs: 3919
2017/12/16 20:08:31 executed programs: 4410
2017/12/16 20:08:36 executed programs: 4898
2017/12/16 20:08:41 executed programs: 5391
2017/12/16 20:08:46 executed programs: 5888
2017/12/16 20:08:51 executed programs: 6387
2017/12/16 20:08:56 executed programs: 6884
2017/12/16 20:09:01 executed programs: 7382
2017/12/16 20:09:06 executed programs: 7875
2017/12/16 20:09:11 executed programs: 8371
2017/12/16 20:09:16 executed programs: 8865
2017/12/16 20:09:21 executed programs: 9361
2017/12/16 20:09:26 executed programs: 9861
2017/12/16 20:09:31 executed programs: 10347
2017/12/16 20:09:36 executed programs: 10790
2017/12/16 20:09:41 executed programs: 11267
2017/12/16 20:09:46 executed programs: 11765
2017/12/16 20:09:51 executed programs: 12265
2017/12/16 20:09:56 executed programs: 12776
2017/12/16 20:10:01 executed programs: 13327
2017/12/16 20:10:06 executed programs: 13824
2017/12/16 20:10:11 executed programs: 14319
2017/12/16 20:10:16 executed programs: 14813
2017/12/16 20:10:21 executed programs: 15300
2017/12/16 20:10:26 executed programs: 15806
2017/12/16 20:10:31 executed programs: 16302
2017/12/16 20:10:36 executed programs: 16777
2017/12/16 20:10:41 executed programs: 17279
2017/12/16 20:10:46 executed programs: 17779
2017/12/16 20:10:51 executed programs: 18279
2017/12/16 20:10:56 executed programs: 18777
2017/12/16 20:11:01 executed programs: 19275
2017/12/16 20:11:06 executed programs: 19766
2017/12/16 20:11:11 executed programs: 20269
2017/12/16 20:11:16 executed programs: 20766
2017/12/16 20:11:21 executed programs: 21255
2017/12/16 20:11:26 executed programs: 21750
2017/12/16 20:11:31 executed programs: 22247
2017/12/16 20:11:36 executed programs: 22746
2017/12/16 20:11:41 executed programs: 23249
2017/12/16 20:11:46 executed programs: 23733
2017/12/16 20:11:51 executed programs: 24222
2017/12/16 20:11:56 executed programs: 24718
2017/12/16 20:12:01 executed programs: 25219
2017/12/16 20:12:06 executed programs: 25714
2017/12/16 20:12:11 executed programs: 26211
2017/12/16 20:12:16 executed programs: 26708
2017/12/16 20:12:21 executed programs: 27205
2017/12/16 20:12:26 executed programs: 27669
2017/12/16 20:12:31 executed programs: 28171
2017/12/16 20:12:36 executed programs: 28676
2017/12/16 20:12:41 executed programs: 29176
2017/12/16 20:12:46 executed programs: 29676
[  988.127353] kworker/dying (5) used greatest stack depth: 11328 bytes left
2017/12/16 20:12:51 executed programs: 30161
2017/12/16 20:12:56 executed programs: 30660
2017/12/16 20:13:01 executed programs: 31157
2017/12/16 20:13:06 executed programs: 31642
2017/12/16 20:13:11 executed programs: 32130
2017/12/16 20:13:16 executed programs: 32624
[ 1016.833490] kasan: CONFIG_KASAN_INLINE enabled
[ 1016.838199] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 1016.845629] general protection fault: 0000 [#1] SMP KASAN
[ 1016.851156] Dumping ftrace buffer:
[ 1016.854675]    (ftrace buffer empty)
[ 1016.858363] Modules linked in:
[ 1016.861535] CPU: 1 PID: 3164 Comm: syz-executor2 Not tainted 4.15.0-rc3+ #224
[ 1016.868780] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 1016.878117] RIP: 0010:proc_flush_task+0x282/0x680
[ 1016.882934] RSP: 0018:ffff8801c93ff3f8 EFLAGS: 00010246
[ 1016.888275] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
[ 1016.895526] RDX: 0000000000000007 RSI: dffffc0000000000 RDI: ffff8801c93ff4ac
[ 1016.902773] RBP: ffff8801c93ff510 R08: 0000000000000000 R09: 1ffff1003927fe12
[ 1016.910015] R10: 0000000000000500 R11: 0000000000000000 R12: ffff8801c93ff4a8
[ 1016.917260] R13: 0000000000000000 R14: ffff8801c0c12900 R15: ffff8801c93ff4e8
[ 1016.924509] FS:  0000000002896940(0000) GS:ffff8801db500000(0000) knlGS:0000000000000000
[ 1016.932715] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1016.938576] CR2: 00007fff48f9d158 CR3: 00000001c7e91005 CR4: 00000000001606e0
[ 1016.945831] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1016.953075] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1016.960317] Call Trace:
[ 1016.962892]  ? proc_tid_base_readdir+0x30/0x30
[ 1016.967460]  ? __lock_is_held+0xb6/0x140
[ 1016.968491] kasan: CONFIG_KASAN_INLINE enabled
[ 1016.968494] kasan: GPF could be caused by NULL-ptr deref or user memory access
[ 1016.983371]  release_task+0x258/0x1a40
[ 1016.987232]  ? lock_downgrade+0x980/0x980
[ 1016.991350]  ? delayed_put_task_struct+0x3d0/0x3d0
[ 1016.996250]  ? check_noncircular+0x20/0x20
[ 1017.000452]  ? check_noncircular+0x20/0x20
[ 1017.004657]  ? cputime_adjust+0x153/0x340
[ 1017.008772]  ? lock_downgrade+0x980/0x980
[ 1017.012893]  ? lock_release+0xa40/0xa40
[ 1017.016837]  ? find_held_lock+0x35/0x1d0
[ 1017.020870]  ? wait_consider_task+0x2989/0x3420
[ 1017.025509]  ? lock_downgrade+0x980/0x980
[ 1017.029622]  ? lock_downgrade+0x980/0x980
[ 1017.033738]  ? lock_release+0xa40/0xa40
[ 1017.037684]  ? do_raw_spin_trylock+0x190/0x190
[ 1017.042232]  ? task_cputime_adjusted+0x240/0x240
[ 1017.046957]  ? _raw_spin_unlock_irq+0x27/0x70
[ 1017.051422]  ? trace_hardirqs_on_caller+0x421/0x5c0
[ 1017.056410]  wait_consider_task+0x2a10/0x3420
[ 1017.060899]  ? exit_notify+0xb10/0xb10
[ 1017.064755]  ? lock_downgrade+0x980/0x980
[ 1017.068872]  ? lock_release+0xa40/0xa40
[ 1017.072815]  ? lock_acquire+0x1d5/0x580
[ 1017.076756]  ? do_raw_spin_trylock+0x190/0x190
[ 1017.081304]  ? lock_acquire+0x1d5/0x580
[ 1017.085244]  ? do_wait+0x3aa/0xa70
[ 1017.088757]  ? lock_release+0xa40/0xa40
[ 1017.092702]  ? add_wait_queue+0x1a9/0x290
[ 1017.096818]  ? wait_woken+0x280/0x280
[ 1017.100591]  do_wait+0x427/0xa70
[ 1017.103929]  ? wait_consider_task+0x3420/0x3420
[ 1017.108571]  ? __do_page_fault+0x5f7/0xc90
[ 1017.112779]  ? find_held_lock+0x35/0x1d0
[ 1017.116816]  ? __might_fault+0x110/0x1d0
[ 1017.120843]  ? lock_downgrade+0x980/0x980
[ 1017.124963]  kernel_wait4+0x1f5/0x370
[ 1017.128731]  ? SyS_waitid+0x50/0x50
[ 1017.132326]  ? task_stopped_code+0x140/0x140
[ 1017.136710]  SYSC_wait4+0x134/0x140
[ 1017.140304]  ? kernel_wait4+0x370/0x370
[ 1017.144244]  ? put_timespec64+0xfc/0x180
[ 1017.148273]  ? nsecs_to_jiffies+0x30/0x30
[ 1017.152394]  ? entry_SYSCALL_64_fastpath+0x5/0x96
[ 1017.157204]  ? trace_hardirqs_on_caller+0x421/0x5c0
[ 1017.162187]  SyS_wait4+0x2c/0x40
[ 1017.165519]  ? SyS_wait4+0x2c/0x40
[ 1017.169027]  entry_SYSCALL_64_fastpath+0x1f/0x96
[ 1017.173746] RIP: 0033:0x40cdba
[ 1017.176904] RSP: 002b:00007fff48f9d148 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
[ 1017.184579] RAX: ffffffffffffffda RBX: 0000000002896914 RCX: 000000000040cdba
[ 1017.191818] RDX: 0000000040000001 RSI: 00007fff48f9d16c RDI: ffffffffffffffff
[ 1017.199057] RBP: 0000000000004fe3 R08: 0000000000000001 R09: 0000000002896940
[ 1017.206296] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000004fe3
[ 1017.213533] R13: 000000000000000d R14: 00000000000f83c4 R15: 0000000000000001
[ 1017.220781] Code: 48 89 fa 48 c1 ea 03 0f b6 0c 1a 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 7b 03 00 00 41 89 47 c4 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 59 03 00 00 49 8b 7d 00 4c 89 e6 e8 88 95 e7 
[ 1017.239886] RIP: proc_flush_task+0x282/0x680 RSP: ffff8801c93ff3f8
[ 1017.246177] general protection fault: 0000 [#2] SMP KASAN
[ 1017.246328] ---[ end trace 29874269c9d5c326 ]---
[ 1017.246331] Kernel panic - not syncing: Fatal exception
[ 1017.261739] Dumping ftrace buffer:
[ 1017.265245]    (ftrace buffer empty)
[ 1017.268922] Modules linked in:
[ 1017.272087] CPU: 0 PID: 3152 Comm: syz-executor4 Tainted: G      D          4.15.0-rc3+ #224
[ 1017.280628] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
[ 1017.289955] RIP: 0010:proc_flush_task+0x282/0x680
[ 1017.294765] RSP: 0018:ffff8801c7f373f8 EFLAGS: 00010246
[ 1017.300093] RAX: 0000000000000000 RBX: dffffc0000000000 RCX: 0000000000000000
[ 1017.307329] RDX: 0000000000000007 RSI: dffffc0000000000 RDI: ffff8801c7f374ac
[ 1017.314566] RBP: ffff8801c7f37510 R08: 0000000000000000 R09: 1ffff10038fe6e12
[ 1017.321804] R10: 0000000000000500 R11: 0000000000000000 R12: ffff8801c7f374a8
[ 1017.329043] R13: 0000000000000000 R14: ffff8801cab05700 R15: ffff8801c7f374e8
[ 1017.336282] FS:  0000000001332940(0000) GS:ffff8801db400000(0000) knlGS:0000000000000000
[ 1017.344476] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 1017.350323] CR2: 00007ffeef0049b8 CR3: 00000001cf1d0004 CR4: 00000000001606f0
[ 1017.357562] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 1017.364798] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 1017.372032] Call Trace:
[ 1017.374593]  ? proc_tid_base_readdir+0x30/0x30
[ 1017.379144]  ? debug_check_no_locks_freed+0x3c0/0x3c0
[ 1017.384303]  ? cpuacct_charge+0x305/0x5c0
[ 1017.388422]  release_task+0x258/0x1a40
[ 1017.392276]  ? lock_acquire+0x1d5/0x580
[ 1017.396231]  ? thread_group_cputime+0x5bf/0xef0
[ 1017.400869]  ? lock_downgrade+0x980/0x980
[ 1017.404983]  ? update_curr+0x47b/0xa60
[ 1017.408841]  ? delayed_put_task_struct+0x3d0/0x3d0
[ 1017.413751]  ? lock_acquire+0x1d5/0x580
[ 1017.417692]  ? lock_acquire+0x1d5/0x580
[ 1017.421632]  ? cputime_adjust+0x153/0x340
[ 1017.425749]  ? lock_downgrade+0x980/0x980
[ 1017.429867]  ? lock_release+0xa40/0xa40
[ 1017.433814]  ? do_raw_spin_trylock+0x190/0x190
[ 1017.438368]  ? wait_consider_task+0x2989/0x3420
[ 1017.443007]  ? lock_downgrade+0x980/0x980
[ 1017.447124]  ? lock_downgrade+0x980/0x980
[ 1017.451243]  ? lock_release+0xa40/0xa40
[ 1017.455186]  ? do_raw_spin_trylock+0x190/0x190
[ 1017.459740]  ? task_cputime_adjusted+0x240/0x240
[ 1017.464471]  wait_consider_task+0x2a10/0x3420
[ 1017.468944]  ? exit_notify+0xb10/0xb10
[ 1017.472802]  ? lock_downgrade+0x980/0x980
[ 1017.476919]  ? lock_release+0xa40/0xa40
[ 1017.480864]  ? lock_acquire+0x1d5/0x580
[ 1017.484803]  ? do_raw_spin_trylock+0x190/0x190
[ 1017.489352]  ? lock_acquire+0x1d5/0x580
[ 1017.493294]  ? do_wait+0x3aa/0xa70
[ 1017.496807]  ? lock_release+0xa40/0xa40
[ 1017.500752]  ? add_wait_queue+0x1a9/0x290
[ 1017.504871]  ? wait_woken+0x280/0x280
[ 1017.508646]  do_wait+0x427/0xa70
[ 1017.511984]  ? wait_consider_task+0x3420/0x3420
[ 1017.516626]  ? __do_page_fault+0x5f7/0xc90
[ 1017.520828]  ? lock_downgrade+0x980/0x980
[ 1017.524951]  ? lock_acquire+0x1d5/0x580
[ 1017.528893]  ? __might_fault+0x110/0x1d0
[ 1017.532922]  ? lock_downgrade+0x980/0x980
[ 1017.537042]  kernel_wait4+0x1f5/0x370
[ 1017.540811]  ? SyS_waitid+0x50/0x50
[ 1017.544407]  ? task_stopped_code+0x140/0x140
[ 1017.548791]  SYSC_wait4+0x134/0x140
[ 1017.552387]  ? kernel_wait4+0x370/0x370
[ 1017.556327]  ? put_timespec64+0xfc/0x180
[ 1017.560356]  ? nsecs_to_jiffies+0x30/0x30
[ 1017.564482]  ? SyS_clock_gettime+0xce/0x160
[ 1017.568770]  ? SyS_clock_settime+0x190/0x190
[ 1017.573151]  SyS_wait4+0x2c/0x40
[ 1017.576486]  ? SyS_wait4+0x2c/0x40
[ 1017.579996]  entry_SYSCALL_64_fastpath+0x1f/0x96
[ 1017.584719] RIP: 0033:0x40cdba
[ 1017.587877] RSP: 002b:00007ffeef0049a8 EFLAGS: 00000246 ORIG_RAX: 000000000000003d
[ 1017.595550] RAX: ffffffffffffffda RBX: 0000000001332914 RCX: 000000000040cdba
[ 1017.602789] RDX: 0000000040000001 RSI: 00007ffeef0049cc RDI: ffffffffffffffff
[ 1017.610028] RBP: 0000000000004ffc R08: 0000000000000001 R09: 0000000001332940
[ 1017.617263] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000004ffc
[ 1017.624501] R13: 000000000000000d R14: 00000000000f844c R15: 0000000000000001
[ 1017.631750] Code: 48 89 fa 48 c1 ea 03 0f b6 0c 1a 48 89 fa 83 e2 07 83 c2 03 38 ca 7c 08 84 c9 0f 85 7b 03 00 00 41 89 47 c4 4c 89 e8 48 c1 e8 03 <80> 3c 18 00 0f 85 59 03 00 00 49 8b 7d 00 4c 89 e6 e8 88 95 e7 
[ 1017.650857] RIP: proc_flush_task+0x282/0x680 RSP: ffff8801c7f373f8
[ 1017.657572] Dumping ftrace buffer:
[ 1017.661086]    (ftrace buffer empty)
[ 1017.664760] Kernel Offset: disabled
[ 1017.668351] Rebooting in 86400 seconds..