[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. Starting mcstransd: [....] 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: [ 16.238412] audit: type=1400 audit(1515712621.539:6): avc: denied { map } for pid=3463 comm="sh" path="/bin/dash" dev="sda1" ino=1473 scontext=system_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=system_u:object_r:file_t:s0 tclass=file permissive=1 [ 17.429685] audit: type=1400 audit(1515712622.730:7): avc: denied { map } for pid=3467 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 '10.128.0.2' (ECDSA) to the list of known hosts. executing program [ 23.607102] audit: type=1400 audit(1515712628.907:8): avc: denied { map } for pid=3481 comm="syzkaller861527" path="/root/syzkaller861527866" dev="sda1" ino=16481 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:object_r:user_home_t:s0 tclass=file permissive=1 [ 23.610931] ------------[ cut here ]------------ [ 23.610949] memory commitment underflow [ 23.611015] WARNING: CPU: 1 PID: 3481 at mm/util.c:606 __vm_enough_memory+0x5a6/0x810 [ 23.611020] Kernel panic - not syncing: panic_on_warn set ... [ 23.611020] [ 23.611026] CPU: 1 PID: 3481 Comm: syzkaller861527 Not tainted 4.15.0-rc7+ #257 [ 23.611030] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 23.611033] Call Trace: [ 23.611044] dump_stack+0x194/0x257 [ 23.611056] ? arch_local_irq_restore+0x53/0x53 [ 23.611072] ? vsnprintf+0x1ed/0x1900 [ 23.611087] panic+0x1e4/0x41c [ 23.611096] ? refcount_error_report+0x214/0x214 [ 23.611104] ? show_regs_print_info+0x18/0x18 [ 23.611122] ? __warn+0x1c1/0x200 [ 23.611135] ? __vm_enough_memory+0x5a6/0x810 [ 23.611141] __warn+0x1dc/0x200 [ 23.611150] ? __vm_enough_memory+0x5a6/0x810 [ 23.611162] report_bug+0x211/0x2d0 [ 23.611181] fixup_bug.part.11+0x37/0x80 [ 23.611191] do_error_trap+0x2d7/0x3e0 [ 23.611206] ? math_error+0x400/0x400 [ 23.611212] ? vprintk_emit+0x3ea/0x590 [ 23.611240] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 23.611256] do_invalid_op+0x1b/0x20 [ 23.611265] invalid_op+0x22/0x40 [ 23.611272] RIP: 0010:__vm_enough_memory+0x5a6/0x810 [ 23.611275] RSP: 0018:ffff8801c07378f0 EFLAGS: 00010286 [ 23.611282] RAX: dffffc0000000008 RBX: 1ffff100380e6f23 RCX: ffffffff8159da9e [ 23.611286] RDX: 0000000000000000 RSI: 1ffff1003800594b RDI: 0000000000000293 [ 23.611290] RBP: ffff8801c0737aa0 R08: 1ffff100380e6eb1 R09: 0000000000000000 [ 23.611294] R10: 0000000000000003 R11: 0000000000000000 R12: ffff8801c0737a78 [ 23.611298] R13: ffffffff869b6ce0 R14: 0000000000000fff R15: dffffc0000000000 [ 23.611317] ? vprintk_func+0x5e/0xc0 [ 23.611342] ? vm_commit_limit+0xc0/0xc0 [ 23.611351] ? lock_release+0xa40/0xa40 [ 23.611372] ? cred_has_capability+0x1a0/0x3d0 [ 23.611384] ? selinux_ipv4_output+0x40/0x40 [ 23.611391] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.611400] ? trace_hardirqs_on+0xd/0x10 [ 23.611416] ? cap_capable+0x1b5/0x230 [ 23.611437] security_vm_enough_memory_mm+0x90/0xb0 [ 23.611449] mmap_region+0x321/0x15a0 [ 23.611471] ? SyS_brk+0x6f0/0x6f0 [ 23.611490] ? arch_get_unmapped_area+0x770/0x770 [ 23.611496] ? lock_acquire+0x1d5/0x580 [ 23.611503] ? vm_mmap_pgoff+0x198/0x280 [ 23.611516] ? selinux_mmap_addr+0x1f/0xf0 [ 23.611526] ? security_mmap_addr+0x79/0xa0 [ 23.611539] ? get_unmapped_area+0x265/0x300 [ 23.611554] do_mmap+0x6c0/0xe00 [ 23.611570] ? mmap_region+0x15a0/0x15a0 [ 23.611576] ? vm_mmap_pgoff+0x198/0x280 [ 23.611584] ? down_read_killable+0x180/0x180 [ 23.611593] ? security_mmap_file+0x143/0x180 [ 23.611609] vm_mmap_pgoff+0x1de/0x280 [ 23.611631] ? vma_is_stack_for_current+0xa0/0xa0 [ 23.611665] SyS_mmap_pgoff+0x23b/0x5f0 [ 23.611680] ? find_mergeable_anon_vma+0xd0/0xd0 [ 23.611689] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 23.611698] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 23.611714] SyS_mmap+0x16/0x20 [ 23.611721] entry_SYSCALL_64_fastpath+0x23/0x9a [ 23.611727] RIP: 0033:0x43fcc9 [ 23.611730] RSP: 002b:00007ffd1b514358 EFLAGS: 00000212 ORIG_RAX: 0000000000000009 [ 23.611737] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 000000000043fcc9 [ 23.611741] RDX: 0000000000000003 RSI: 0000000000fff000 RDI: 0000000020000000 [ 23.611745] RBP: 7fffffffffffffff R08: 00000000ffffffff R09: 0000000000000000 [ 23.611749] R10: 0000000000000032 R11: 0000000000000212 R12: 6873612f7665642f [ 23.611752] R13: 00000000004016c0 R14: 0000000000000000 R15: 0000000000000000 [ 23.633704] Dumping ftrace buffer: [ 23.633757] (ftrace buffer empty) [ 23.633760] Kernel Offset: disabled [ 23.987306] Rebooting in 86400 seconds..