[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... Starting Load/Save RF Kill Switch Status... [ OK ] Started Update UTMP about System Runlevel Changes. [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.15.208' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.290683] audit: type=1400 audit(1600727946.458:8): avc: denied { execmem } for pid=6356 comm="syz-executor012" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 34.311235] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 34.320490] REISERFS (device loop0): using ordered data mode [ 34.327160] reiserfs: using flush barriers [ 34.332719] REISERFS (device loop0): journal params: device loop0, size 15748, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 34.350919] REISERFS (device loop0): checking transaction log (loop0) [ 35.482375] REISERFS (device loop0): Using r5 hash to sort names [ 35.489165] ------------[ cut here ]------------ [ 35.494073] WARNING: CPU: 1 PID: 6356 at fs/inode.c:967 unlock_new_inode+0x9a/0xc0 [ 35.501766] Kernel panic - not syncing: panic_on_warn set ... [ 35.501766] [ 35.509127] CPU: 1 PID: 6356 Comm: syz-executor012 Not tainted 4.14.198-syzkaller #0 [ 35.516991] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.526330] Call Trace: [ 35.528920] dump_stack+0x1b2/0x283 [ 35.532553] panic+0x1f9/0x42d [ 35.535756] ? add_taint.cold+0x16/0x16 [ 35.539725] ? unlock_new_inode+0x9a/0xc0 [ 35.543894] ? unlock_new_inode+0x9a/0xc0 [ 35.548398] __warn.cold+0x20/0x4b [ 35.551929] ? ist_end_non_atomic+0x10/0x10 [ 35.556244] ? unlock_new_inode+0x9a/0xc0 [ 35.560370] report_bug+0x208/0x249 [ 35.563980] do_error_trap+0x195/0x2d0 [ 35.567844] ? math_error+0x2d0/0x2d0 [ 35.571622] ? trace_hardirqs_on+0x10/0x10 [ 35.575836] ? reiserfs_write_lock_nested+0x59/0xd0 [ 35.580834] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.585661] invalid_op+0x1b/0x40 [ 35.589106] RIP: 0010:unlock_new_inode+0x9a/0xc0 [ 35.593832] RSP: 0018:ffff8880975776d8 EFLAGS: 00010297 [ 35.600124] RAX: ffff88809d260300 RBX: ffff88807c96e1a8 RCX: 0000000000000000 [ 35.607374] RDX: 0000000000000000 RSI: 000000000000b14f RDI: ffff88807c96e234 [ 35.614626] RBP: 0000000000000000 R08: ffffffff8a11484c R09: 0000000000001e66 [ 35.621889] R10: 0000000000000001 R11: ffff88809d260300 R12: ffff88807c96e280 [ 35.629147] R13: ffff88807c96e230 R14: 0000000000000000 R15: 00000000fffffff4 [ 35.636440] ? unlock_new_inode+0x9a/0xc0 [ 35.640569] reiserfs_new_inode+0x3a4/0x2100 [ 35.644957] ? __mutex_lock+0x360/0x1310 [ 35.649021] ? reiserfs_fh_to_parent+0x180/0x180 [ 35.653752] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 35.659452] ? __mutex_unlock_slowpath+0x75/0x770 [ 35.664285] ? wait_for_completion_io+0x10/0x10 [ 35.669386] ? wait_for_completion_io+0x10/0x10 [ 35.674068] ? do_journal_begin_r+0x9bf/0xca0 [ 35.678568] reiserfs_mkdir+0x41d/0x8b0 [ 35.682542] ? reiserfs_mknod+0x690/0x690 [ 35.686687] reiserfs_xattr_init+0x393/0xa49 [ 35.691095] reiserfs_fill_super+0x1b10/0x28b6 [ 35.695674] ? reiserfs_remount+0x1390/0x1390 [ 35.700151] ? lock_downgrade+0x740/0x740 [ 35.704297] ? snprintf+0xa5/0xd0 [ 35.707768] mount_bdev+0x2b3/0x360 [ 35.711374] ? reiserfs_remount+0x1390/0x1390 [ 35.715850] mount_fs+0x92/0x2a0 [ 35.719210] vfs_kern_mount.part.0+0x5b/0x470 [ 35.723690] do_mount+0xe53/0x2a00 [ 35.727214] ? do_raw_spin_unlock+0x164/0x220 [ 35.731691] ? copy_mount_string+0x40/0x40 [ 35.735943] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.740938] ? copy_mnt_ns+0xa30/0xa30 [ 35.745000] ? copy_mount_options+0x1fa/0x2f0 [ 35.749489] ? copy_mnt_ns+0xa30/0xa30 [ 35.753355] SyS_mount+0xa8/0x120 [ 35.756800] ? copy_mnt_ns+0xa30/0xa30 [ 35.760667] do_syscall_64+0x1d5/0x640 [ 35.764544] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 35.769728] RIP: 0033:0x446ffa [ 35.772894] RSP: 002b:00007ffd53d93cf8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 35.780581] RAX: ffffffffffffffda RBX: 00007ffd53d93d50 RCX: 0000000000446ffa [ 35.787834] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd53d93d10 [ 35.795147] RBP: 00007ffd53d93d10 R08: 00007ffd53d93d50 R09: 00007ffd00000015 [ 35.802403] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000007 [ 35.809667] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 35.818252] Kernel Offset: disabled [ 35.821963] Rebooting in 86400 seconds..