[ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.85' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.172828] audit: type=1400 audit(1601199576.487:8): avc: denied { execmem } for pid=6359 comm="syz-executor361" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 33.194664] REISERFS (device loop0): found reiserfs format "3.6" with standard journal [ 33.203728] REISERFS (device loop0): using ordered data mode [ 33.209523] reiserfs: using flush barriers [ 33.214897] REISERFS (device loop0): journal params: device loop0, size 8195, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 33.232241] REISERFS (device loop0): checking transaction log (loop0) [ 33.819858] REISERFS (device loop0): Using rupasov hash to sort names [ 33.827017] ------------[ cut here ]------------ [ 33.831861] WARNING: CPU: 0 PID: 6359 at fs/inode.c:967 unlock_new_inode+0x9a/0xc0 [ 33.839588] Kernel panic - not syncing: panic_on_warn set ... [ 33.839588] [ 33.846926] CPU: 0 PID: 6359 Comm: syz-executor361 Not tainted 4.14.198-syzkaller #0 [ 33.854792] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 33.864131] Call Trace: [ 33.866696] dump_stack+0x1b2/0x283 [ 33.870301] panic+0x1f9/0x42d [ 33.873469] ? add_taint.cold+0x16/0x16 [ 33.877433] ? unlock_new_inode+0x9a/0xc0 [ 33.881555] ? unlock_new_inode+0x9a/0xc0 [ 33.885677] __warn.cold+0x20/0x4b [ 33.889197] ? ist_end_non_atomic+0x10/0x10 [ 33.893494] ? unlock_new_inode+0x9a/0xc0 [ 33.897618] report_bug+0x208/0x249 [ 33.901220] do_error_trap+0x195/0x2d0 [ 33.905079] ? math_error+0x2d0/0x2d0 [ 33.908857] ? trace_hardirqs_on+0x10/0x10 [ 33.913085] ? reiserfs_write_lock_nested+0x59/0xd0 [ 33.918094] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 33.922915] invalid_op+0x1b/0x40 [ 33.926357] RIP: 0010:unlock_new_inode+0x9a/0xc0 [ 33.931085] RSP: 0000:ffff888081f276d8 EFLAGS: 00010297 [ 33.936421] RAX: ffff8880860001c0 RBX: ffff8880827ff1a8 RCX: 0000000000000000 [ 33.943679] RDX: 0000000000000000 RSI: 000000000000b326 RDI: ffff8880827ff234 [ 33.950922] RBP: 0000000000000000 R08: ffffffff8a11484c R09: 0000000000001e4e [ 33.958165] R10: 0000000000000001 R11: ffff8880860001c0 R12: ffff8880827ff280 [ 33.965427] R13: ffff8880827ff230 R14: 0000000000000000 R15: 00000000fffffff4 [ 33.972686] ? unlock_new_inode+0x9a/0xc0 [ 33.976810] reiserfs_new_inode+0x3a4/0x2100 [ 33.981199] ? __mutex_lock+0x360/0x1310 [ 33.985238] ? reiserfs_fh_to_parent+0x180/0x180 [ 33.989969] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 33.996364] ? __mutex_unlock_slowpath+0x75/0x770 [ 34.001201] ? wait_for_completion_io+0x10/0x10 [ 34.005844] ? wait_for_completion_io+0x10/0x10 [ 34.010514] ? do_journal_begin_r+0x9bf/0xca0 [ 34.014992] reiserfs_mkdir+0x41d/0x8b0 [ 34.018955] ? reiserfs_mknod+0x690/0x690 [ 34.023093] reiserfs_xattr_init+0x393/0xa49 [ 34.027484] reiserfs_fill_super+0x1b10/0x28b6 [ 34.032043] ? reiserfs_remount+0x1390/0x1390 [ 34.036517] ? lock_downgrade+0x740/0x740 [ 34.040659] ? snprintf+0xa5/0xd0 [ 34.044096] mount_bdev+0x2b3/0x360 [ 34.047701] ? reiserfs_remount+0x1390/0x1390 [ 34.052172] mount_fs+0x92/0x2a0 [ 34.055522] vfs_kern_mount.part.0+0x5b/0x470 [ 34.059992] do_mount+0xe53/0x2a00 [ 34.063510] ? trace_event_raw_event_rdev_assoc+0x1a0/0x450 [ 34.069200] ? copy_mount_string+0x40/0x40 [ 34.073413] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.078425] ? copy_mnt_ns+0xa30/0xa30 [ 34.082287] ? copy_mount_options+0x1fa/0x2f0 [ 34.086756] ? copy_mnt_ns+0xa30/0xa30 [ 34.090628] SyS_mount+0xa8/0x120 [ 34.094054] ? copy_mnt_ns+0xa30/0xa30 [ 34.097930] do_syscall_64+0x1d5/0x640 [ 34.102764] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.107927] RIP: 0033:0x44701a [ 34.111090] RSP: 002b:00007ffd63b89378 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 34.118770] RAX: ffffffffffffffda RBX: 00007ffd63b893d0 RCX: 000000000044701a [ 34.126014] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd63b89390 [ 34.133258] RBP: 00007ffd63b89390 R08: 00007ffd63b893d0 R09: 00007ffd00000015 [ 34.140514] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000007 [ 34.147766] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 34.156251] Kernel Offset: disabled [ 34.159938] Rebooting in 86400 seconds..