[ 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 '10.128.0.168' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 33.056687] audit: type=1400 audit(1600882945.971:8): avc: denied { execmem } for pid=6362 comm="syz-executor933" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 33.073942] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 33.085556] REISERFS (device loop0): using ordered data mode [ 33.093717] reiserfs: using flush barriers [ 33.098990] REISERFS (device loop0): journal params: device loop0, size 15748, journal first block 18, max trans len 256, max batch 225, max commit age 30, max trans age 30 [ 33.117193] REISERFS (device loop0): checking transaction log (loop0) [ 34.187614] REISERFS (device loop0): Using rupasov hash to sort names [ 34.194701] ------------[ cut here ]------------ [ 34.199549] WARNING: CPU: 1 PID: 6363 at fs/inode.c:967 unlock_new_inode+0x9a/0xc0 [ 34.207277] Kernel panic - not syncing: panic_on_warn set ... [ 34.207277] [ 34.214639] CPU: 1 PID: 6363 Comm: syz-executor933 Not tainted 4.14.198-syzkaller #0 [ 34.222498] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 34.231826] Call Trace: [ 34.234413] dump_stack+0x1b2/0x283 [ 34.238022] panic+0x1f9/0x42d [ 34.241199] ? add_taint.cold+0x16/0x16 [ 34.245151] ? unlock_new_inode+0x9a/0xc0 [ 34.249300] ? unlock_new_inode+0x9a/0xc0 [ 34.253426] __warn.cold+0x20/0x4b [ 34.256945] ? ist_end_non_atomic+0x10/0x10 [ 34.261241] ? unlock_new_inode+0x9a/0xc0 [ 34.265366] report_bug+0x208/0x249 [ 34.268970] do_error_trap+0x195/0x2d0 [ 34.272832] ? math_error+0x2d0/0x2d0 [ 34.276623] ? trace_hardirqs_on+0x10/0x10 [ 34.280836] ? reiserfs_write_lock_nested+0x59/0xd0 [ 34.285831] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 34.290652] invalid_op+0x1b/0x40 [ 34.294093] RIP: 0010:unlock_new_inode+0x9a/0xc0 [ 34.298820] RSP: 0018:ffff8880975476d8 EFLAGS: 00010297 [ 34.304157] RAX: ffff8880987fc300 RBX: ffff88807c87a1a8 RCX: 0000000000000000 [ 34.311403] RDX: 0000000000000000 RSI: 000000000000b2f0 RDI: ffff88807c87a234 [ 34.321008] RBP: 0000000000000000 R08: ffffffff8a1146fc R09: 0000000000001e66 [ 34.328272] R10: 0000000000000001 R11: ffff8880987fc300 R12: ffff88807c87a280 [ 34.335517] R13: ffff88807c87a230 R14: 0000000000000000 R15: 00000000fffffff4 [ 34.342789] ? unlock_new_inode+0x9a/0xc0 [ 34.346923] reiserfs_new_inode+0x3a4/0x2100 [ 34.351312] ? __mutex_lock+0x360/0x1310 [ 34.355358] ? reiserfs_fh_to_parent+0x180/0x180 [ 34.360100] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 34.365547] ? __mutex_unlock_slowpath+0x75/0x770 [ 34.370376] ? wait_for_completion_io+0x10/0x10 [ 34.375025] ? wait_for_completion_io+0x10/0x10 [ 34.379683] ? do_journal_begin_r+0x9bf/0xca0 [ 34.384195] reiserfs_mkdir+0x41d/0x8b0 [ 34.388155] ? reiserfs_mknod+0x690/0x690 [ 34.392288] reiserfs_xattr_init+0x393/0xa49 [ 34.396740] reiserfs_fill_super+0x1b10/0x28b6 [ 34.401357] ? reiserfs_remount+0x1390/0x1390 [ 34.405861] ? lock_downgrade+0x740/0x740 [ 34.409996] ? snprintf+0xa5/0xd0 [ 34.413476] mount_bdev+0x2b3/0x360 [ 34.417108] ? reiserfs_remount+0x1390/0x1390 [ 34.421583] mount_fs+0x92/0x2a0 [ 34.424930] vfs_kern_mount.part.0+0x5b/0x470 [ 34.429402] do_mount+0xe53/0x2a00 [ 34.432921] ? copy_mount_string+0x40/0x40 [ 34.437136] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 34.442320] ? copy_mnt_ns+0xa30/0xa30 [ 34.446192] ? copy_mount_options+0x1fa/0x2f0 [ 34.450670] ? copy_mnt_ns+0xa30/0xa30 [ 34.454563] SyS_mount+0xa8/0x120 [ 34.457992] ? copy_mnt_ns+0xa30/0xa30 [ 34.461877] do_syscall_64+0x1d5/0x640 [ 34.465760] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 34.470945] RIP: 0033:0x447dba [ 34.474110] RSP: 002b:00007ffd24635cd8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 34.481808] RAX: ffffffffffffffda RBX: 00007ffd24635d30 RCX: 0000000000447dba [ 34.489058] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd24635cf0 [ 34.496308] RBP: 00007ffd24635cf0 R08: 00007ffd24635d30 R09: 0000000000000000 [ 34.503570] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000007 [ 34.510814] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 34.519549] Kernel Offset: disabled [ 34.523232] Rebooting in 86400 seconds..