[....] Starting enhanced syslogd: rsyslogd[ 12.034150] audit: type=1400 audit(1515720409.868:5): avc: denied { syslog } for pid=3357 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 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: [ 16.357391] audit: type=1400 audit(1515720414.192:6): avc: denied { map } for pid=3496 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 '10.128.0.32' (ECDSA) to the list of known hosts. [ 22.606065] audit: type=1400 audit(1515720420.440:7): avc: denied { map } for pid=3511 comm="syzkaller485245" path="/root/syzkaller485245359" 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 executing program executing program [ 22.632439] audit: type=1400 audit(1515720420.441:8): avc: denied { sys_admin } for pid=3511 comm="syzkaller485245" capability=21 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 22.660460] audit: type=1400 audit(1515720420.495:9): avc: denied { sys_chroot } for pid=3512 comm="syzkaller485245" capability=18 scontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tcontext=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 tclass=cap_userns permissive=1 [ 22.663568] ------------[ cut here ]------------ [ 22.663586] memory commitment underflow [ 22.663658] WARNING: CPU: 0 PID: 3512 at mm/util.c:606 __vm_enough_memory+0x5a6/0x810 [ 22.663662] Kernel panic - not syncing: panic_on_warn set ... [ 22.663662] [ 22.663670] CPU: 0 PID: 3512 Comm: syzkaller485245 Not tainted 4.15.0-rc7-next-20180111+ #94 [ 22.663674] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 22.663676] Call Trace: [ 22.663685] dump_stack+0x194/0x257 [ 22.663697] ? arch_local_irq_restore+0x53/0x53 [ 22.663711] ? vsnprintf+0x1ed/0x1900 [ 22.663727] panic+0x1e4/0x41c [ 22.663736] ? refcount_error_report+0x214/0x214 [ 22.663742] ? show_regs_print_info+0x18/0x18 [ 22.663773] ? __warn+0x1c1/0x200 [ 22.663785] ? __vm_enough_memory+0x5a6/0x810 [ 22.663792] __warn+0x1dc/0x200 [ 22.663800] ? __vm_enough_memory+0x5a6/0x810 [ 22.663811] report_bug+0x211/0x2d0 [ 22.663827] fixup_bug.part.11+0x37/0x80 [ 22.663835] do_error_trap+0x2d7/0x3e0 [ 22.663857] ? math_error+0x400/0x400 [ 22.663865] ? vprintk_emit+0x3ea/0x590 [ 22.663892] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 22.663907] do_invalid_op+0x1b/0x20 [ 22.663916] invalid_op+0x22/0x40 [ 22.663922] RIP: 0010:__vm_enough_memory+0x5a6/0x810 [ 22.663925] RSP: 0018:ffff8801bfbaf8e0 EFLAGS: 00010282 [ 22.663932] RAX: dffffc0000000008 RBX: 1ffff10037f75f21 RCX: ffffffff815a613e [ 22.663936] RDX: 0000000000000000 RSI: 1ffff10037e84d3b RDI: 0000000000000293 [ 22.663940] RBP: ffff8801bfbafa90 R08: 1ffff10037f75eaf R09: 0000000000000000 [ 22.663944] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8801bfbafa68 [ 22.663948] R13: ffffffff869b8c80 R14: 0000000000000fff R15: dffffc0000000000 [ 22.663975] ? vprintk_func+0x5e/0xc0 [ 22.663998] ? vm_commit_limit+0xc0/0xc0 [ 22.664012] ? lock_release+0xa40/0xa40 [ 22.664028] ? mark_held_locks+0xaf/0x100 [ 22.664038] ? _raw_spin_unlock_irqrestore+0x31/0xba [ 22.664049] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.664059] ? trace_hardirqs_on+0xd/0x10 [ 22.664083] ? percpu_counter_add_batch+0xce/0x130 [ 22.664092] ? cap_capable+0x1b5/0x230 [ 22.664113] security_vm_enough_memory_mm+0x90/0xb0 [ 22.664125] mmap_region+0x321/0x15a0 [ 22.664145] ? SyS_brk+0x6f0/0x6f0 [ 22.664164] ? arch_get_unmapped_area+0x770/0x770 [ 22.664179] ? lock_acquire+0x1d5/0x580 [ 22.664186] ? lock_acquire+0x1d5/0x580 [ 22.664193] ? vm_mmap_pgoff+0x198/0x280 [ 22.664203] ? selinux_mmap_addr+0x1f/0xf0 [ 22.664212] ? security_mmap_addr+0x79/0xa0 [ 22.664224] ? get_unmapped_area+0x265/0x300 [ 22.664229] ? file_map_prot_check+0x2e0/0x2e0 [ 22.664243] do_mmap+0x73c/0xf70 [ 22.664260] ? mmap_region+0x15a0/0x15a0 [ 22.664265] ? vm_mmap_pgoff+0x198/0x280 [ 22.664273] ? down_read_killable+0x180/0x180 [ 22.664290] ? security_mmap_file+0x143/0x180 [ 22.664305] vm_mmap_pgoff+0x1de/0x280 [ 22.664326] ? vma_is_stack_for_current+0xa0/0xa0 [ 22.664332] ? exit_to_usermode_loop+0x198/0x2f0 [ 22.664344] ? trace_event_raw_event_sys_exit+0x260/0x260 [ 22.664377] SyS_mmap_pgoff+0x23b/0x5f0 [ 22.664391] ? find_mergeable_anon_vma+0xd0/0xd0 [ 22.664400] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 22.664409] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 22.664425] SyS_mmap+0x16/0x20 [ 22.664432] entry_SYSCALL_64_fastpath+0x29/0xa0 [ 22.664437] RIP: 0033:0x440ac9 [ 22.664441] RSP: 002b:00000000007dff58 EFLAGS: 00000212 ORIG_RAX: 0000000000000009 [ 22.664447] RAX: ffffffffffffffda RBX: ffffffffffffffff RCX: 0000000000440ac9 [ 22.664451] RDX: 0000000000000003 RSI: 0000000000fff000 RDI: 0000000020000000 [ 22.664455] RBP: 7fffffffffffffff R08: 00000000ffffffff R09: 0000000000000000 [ 22.664459] R10: 0000000000000032 R11: 0000000000000212 R12: 6873612f7665642f [ 22.664472] R13: 6c616b7a79732f2e R14: 0000000000000000 R15: 0000000000000000 [ 22.685383] Dumping ftrace buffer: [ 22.685441] (ftrace buffer empty) [ 22.685443] Kernel Offset: disabled [ 23.060084] Rebooting in 86400 seconds..