[ OK ] Reached target Graphical Interface. Starting Update UTMP about System Runlevel Changes... [ OK ] Started Update UTMP about System Runlevel Changes. Starting Load/Save RF Kill Switch Status... [ OK ] Started Load/Save RF Kill Switch Status. Debian GNU/Linux 9 syzkaller ttyS0 Warning: Permanently added '10.128.0.42' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.887075] audit: type=1400 audit(1600916135.808:8): avc: denied { execmem } for pid=6357 comm="syz-executor849" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 33.924403] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 33.933026] REISERFS (device loop0): using ordered data mode [ 33.940193] reiserfs: using flush barriers [ 33.946496] 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 [ 33.966275] REISERFS (device loop0): checking transaction log (loop0) [ 35.109055] REISERFS (device loop0): Using tea hash to sort names [ 35.115920] ------------[ cut here ]------------ [ 35.120781] WARNING: CPU: 0 PID: 6358 at fs/inode.c:967 unlock_new_inode+0x9a/0xc0 [ 35.128483] Kernel panic - not syncing: panic_on_warn set ... [ 35.128483] [ 35.135840] CPU: 0 PID: 6358 Comm: syz-executor849 Not tainted 4.14.198-syzkaller #0 [ 35.143698] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.153035] Call Trace: [ 35.155627] dump_stack+0x1b2/0x283 [ 35.159237] panic+0x1f9/0x42d [ 35.162416] ? add_taint.cold+0x16/0x16 [ 35.166382] ? unlock_new_inode+0x9a/0xc0 [ 35.170514] ? unlock_new_inode+0x9a/0xc0 [ 35.174640] __warn.cold+0x20/0x4b [ 35.178157] ? ist_end_non_atomic+0x10/0x10 [ 35.182459] ? unlock_new_inode+0x9a/0xc0 [ 35.186586] report_bug+0x208/0x249 [ 35.190204] do_error_trap+0x195/0x2d0 [ 35.194078] ? math_error+0x2d0/0x2d0 [ 35.197866] ? trace_hardirqs_on+0x10/0x10 [ 35.202084] ? reiserfs_write_lock_nested+0x59/0xd0 [ 35.207096] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.211935] invalid_op+0x1b/0x40 [ 35.215368] RIP: 0010:unlock_new_inode+0x9a/0xc0 [ 35.220108] RSP: 0018:ffff88809790f6d8 EFLAGS: 00010297 [ 35.225455] RAX: ffff8880979e0000 RBX: ffff88807c95f1a8 RCX: 0000000000000000 [ 35.232713] RDX: 0000000000000000 RSI: 000000000000b1b5 RDI: ffff88807c95f234 [ 35.239963] RBP: 0000000000000000 R08: ffffffff8a11484c R09: 0000000000001e4c [ 35.247214] R10: 0000000000000001 R11: ffff8880979e0000 R12: ffff88807c95f280 [ 35.254477] R13: ffff88807c95f230 R14: 0000000000000000 R15: 00000000fffffff4 [ 35.261747] ? unlock_new_inode+0x9a/0xc0 [ 35.265889] reiserfs_new_inode+0x3a4/0x2100 [ 35.270289] ? __mutex_lock+0x360/0x1310 [ 35.274345] ? reiserfs_fh_to_parent+0x180/0x180 [ 35.279199] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 35.284976] ? __mutex_unlock_slowpath+0x75/0x770 [ 35.289796] ? wait_for_completion_io+0x10/0x10 [ 35.294458] ? wait_for_completion_io+0x10/0x10 [ 35.299114] ? do_journal_begin_r+0x9bf/0xca0 [ 35.303605] reiserfs_mkdir+0x41d/0x8b0 [ 35.307570] ? reiserfs_mknod+0x690/0x690 [ 35.311786] reiserfs_xattr_init+0x393/0xa49 [ 35.316186] reiserfs_fill_super+0x1b10/0x28b6 [ 35.320766] ? reiserfs_remount+0x1390/0x1390 [ 35.325253] ? lock_downgrade+0x740/0x740 [ 35.329442] ? snprintf+0xa5/0xd0 [ 35.332883] mount_bdev+0x2b3/0x360 [ 35.336490] ? reiserfs_remount+0x1390/0x1390 [ 35.340972] mount_fs+0x92/0x2a0 [ 35.344317] vfs_kern_mount.part.0+0x5b/0x470 [ 35.348789] do_mount+0xe53/0x2a00 [ 35.352339] ? copy_mount_string+0x40/0x40 [ 35.356581] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.361579] ? copy_mnt_ns+0xa30/0xa30 [ 35.365442] ? copy_mount_options+0x1fa/0x2f0 [ 35.369914] ? copy_mnt_ns+0xa30/0xa30 [ 35.373784] SyS_mount+0xa8/0x120 [ 35.377217] ? copy_mnt_ns+0xa30/0xa30 [ 35.381126] do_syscall_64+0x1d5/0x640 [ 35.385022] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 35.390223] RIP: 0033:0x447dba [ 35.393388] RSP: 002b:00007ffe0e380ca8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 35.401093] RAX: ffffffffffffffda RBX: 00007ffe0e380d00 RCX: 0000000000447dba [ 35.408346] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe0e380cc0 [ 35.415598] RBP: 00007ffe0e380cc0 R08: 00007ffe0e380d00 R09: 0000000000000000 [ 35.422857] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000007 [ 35.430137] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 35.438542] Kernel Offset: disabled [ 35.442230] Rebooting in 86400 seconds..