[ 39.500286][ T26] audit: type=1800 audit(1556015656.161:32): pid=7731 uid=0 auid=4294967295 ses=4294967295 subj=system_u:system_r:kernel_t:s0 op=collect_data cause=failed(directio) comm="startpar" name="ssh" dev="sda1" ino=2417 res=0 Starting mcstransd: [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting file context maintaining daemon: restorecond[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 syzkaller login: [ 44.765925][ T26] kauditd_printk_skb: 2 callbacks suppressed [ 44.765939][ T26] audit: type=1400 audit(1556015661.511:35): avc: denied { map } for pid=7907 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 '10.128.0.174' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program [ 51.162026][ T26] audit: type=1400 audit(1556015667.911:36): avc: denied { map } for pid=7919 comm="syz-executor001" path="/root/syz-executor001900772" 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 [ 51.174649][ T7928] ------------[ cut here ]------------ [ 51.199747][ T7928] memory commitment underflow [ 51.199787][ T26] audit: type=1400 audit(1556015667.911:37): avc: denied { map } for pid=7927 comm="syz-executor001" path="/dev/ashmem" dev="devtmpfs" ino=18489 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:device_t:s0 tclass=chr_file permissive=1 [ 51.199882][ T7928] WARNING: CPU: 0 PID: 7928 at mm/util.c:657 __vm_enough_memory+0x47b/0x5a0 [ 51.238747][ T7928] Kernel panic - not syncing: panic_on_warn set ... [ 51.245337][ T7928] CPU: 0 PID: 7928 Comm: syz-executor001 Not tainted 5.1.0-rc6 #78 [ 51.253205][ T7928] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 51.263232][ T7928] Call Trace: [ 51.266506][ T7928] dump_stack+0x172/0x1f0 [ 51.270815][ T7928] ? __vm_enough_memory+0x3d0/0x5a0 [ 51.275987][ T7928] panic+0x2cb/0x65c [ 51.279859][ T7928] ? __warn_printk+0xf3/0xf3 [ 51.284425][ T7928] ? __vm_enough_memory+0x47b/0x5a0 [ 51.289616][ T7928] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.295837][ T7928] ? __warn.cold+0x5/0x45 [ 51.300140][ T7928] ? __warn+0xe8/0x1d0 [ 51.304185][ T7928] ? __vm_enough_memory+0x47b/0x5a0 [ 51.309384][ T7928] __warn.cold+0x20/0x45 [ 51.313605][ T7928] ? vprintk_emit+0x1ce/0x6d0 [ 51.318267][ T7928] ? __vm_enough_memory+0x47b/0x5a0 [ 51.323456][ T7928] report_bug+0x263/0x2b0 [ 51.328055][ T7928] do_error_trap+0x11b/0x200 [ 51.332825][ T7928] do_invalid_op+0x37/0x50 [ 51.342144][ T7928] ? __vm_enough_memory+0x47b/0x5a0 [ 51.347590][ T7928] invalid_op+0x14/0x20 [ 51.351913][ T7928] RIP: 0010:__vm_enough_memory+0x47b/0x5a0 [ 51.358146][ T7928] Code: e8 aa 79 da ff 0f b6 75 d0 40 84 f6 0f 85 50 fc ff ff e8 58 78 da ff 48 c7 c7 60 7c 72 87 c6 05 2f 73 c4 07 01 e8 03 26 ad ff <0f> 0b 48 b8 00 00 00 00 00 fc ff df 4c 89 f2 48 c1 ea 03 0f b6 14 [ 51.378788][ T7928] RSP: 0018:ffff8880993b7a60 EFLAGS: 00010282 [ 51.384868][ T7928] RAX: 0000000000000000 RBX: fff8000000000000 RCX: 0000000000000000 [ 51.393511][ T7928] RDX: 0000000000000000 RSI: ffffffff815afcf6 RDI: ffffed1013276f3e [ 51.401465][ T7928] RBP: ffff8880993b7a98 R08: ffff8880a906a180 R09: ffff8880a906aa48 [ 51.409510][ T7928] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000001 [ 51.417706][ T7928] R13: ffff88807d106000 R14: ffffffff88a2a580 R15: 0000000000000c67 [ 51.425695][ T7928] ? vprintk_func+0x86/0x189 [ 51.430294][ T7928] security_vm_enough_memory_mm+0xa0/0xd0 [ 51.436010][ T7928] __shmem_file_setup.part.0+0x194/0x2b0 [ 51.441638][ T7928] shmem_file_setup+0x66/0x90 [ 51.446302][ T7928] ashmem_mmap+0x35f/0x520 [ 51.450905][ T7928] mmap_region+0xc3a/0x1770 [ 51.455408][ T7928] ? __x64_sys_brk+0x760/0x760 [ 51.460182][ T7928] ? __sanitizer_cov_trace_const_cmp8+0x18/0x20 [ 51.466560][ T7928] ? get_unmapped_area+0x295/0x3b0 [ 51.471650][ T7928] do_mmap+0x8e2/0x1080 [ 51.475945][ T7928] vm_mmap_pgoff+0x1c5/0x230 [ 51.480950][ T7928] ? vma_is_stack_for_current+0xd0/0xd0 [ 51.486481][ T7928] ? ksys_dup3+0x3e0/0x3e0 [ 51.491027][ T7928] ksys_mmap_pgoff+0x4aa/0x630 [ 51.495775][ T7928] ? find_mergeable_anon_vma+0x2e0/0x2e0 [ 51.501388][ T7928] ? __sanitizer_cov_trace_const_cmp4+0x16/0x20 [ 51.507961][ T7928] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 51.513514][ T7928] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 51.519040][ T7928] ? do_syscall_64+0x26/0x610 [ 51.523990][ T7928] ? entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.530561][ T7928] __x64_sys_mmap+0xe9/0x1b0 [ 51.535906][ T7928] do_syscall_64+0x103/0x610 [ 51.540610][ T7928] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 51.546640][ T7928] RIP: 0033:0x441289 [ 51.550516][ T7928] Code: e8 ac e8 ff ff 48 83 c4 18 c3 0f 1f 80 00 00 00 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00 [ 51.570583][ T7928] RSP: 002b:00007ffc5b097fd8 EFLAGS: 00000246 ORIG_RAX: 0000000000000009 [ 51.579099][ T7928] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441289 [ 51.587211][ T7928] RDX: 0000000000000000 RSI: 0000000000001000 RDI: 0000000020ffc000 [ 51.595287][ T7928] RBP: 00000000006cb018 R08: 0000000000000003 R09: 0000000000000000 [ 51.603396][ T7928] R10: 0080000000000012 R11: 0000000000000246 R12: 0000000000402000 [ 51.611662][ T7928] R13: 0000000000402090 R14: 0000000000000000 R15: 0000000000000000 [ 51.621041][ T7928] Kernel Offset: disabled [ 51.625620][ T7928] Rebooting in 86400 seconds..