[ 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 '10.128.0.222' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 34.490550] audit: type=1400 audit(1600627201.597:8): avc: denied { execmem } for pid=6347 comm="syz-executor049" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 34.508921] REISERFS (device loop0): found reiserfs format "3.5" with standard journal [ 34.519488] REISERFS (device loop0): using ordered data mode [ 34.525709] reiserfs: using flush barriers [ 34.531219] REISERFS (device loop0): journal params: device loop0, size 8192, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 34.548349] REISERFS (device loop0): checking transaction log (loop0) [ 35.131898] REISERFS (device loop0): Using rupasov hash to sort names [ 35.138796] REISERFS (device loop0): using 3.5.x disk format [ 35.145218] ------------[ cut here ]------------ [ 35.150162] WARNING: CPU: 1 PID: 6347 at fs/inode.c:967 unlock_new_inode+0x9a/0xc0 [ 35.157870] Kernel panic - not syncing: panic_on_warn set ... [ 35.157870] [ 35.165227] CPU: 1 PID: 6347 Comm: syz-executor049 Not tainted 4.14.198-syzkaller #0 [ 35.173099] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 35.182446] Call Trace: [ 35.185024] dump_stack+0x1b2/0x283 [ 35.188661] panic+0x1f9/0x42d [ 35.191841] ? add_taint.cold+0x16/0x16 [ 35.195904] ? unlock_new_inode+0x9a/0xc0 [ 35.200041] ? unlock_new_inode+0x9a/0xc0 [ 35.204186] __warn.cold+0x20/0x4b [ 35.207724] ? ist_end_non_atomic+0x10/0x10 [ 35.212045] ? unlock_new_inode+0x9a/0xc0 [ 35.216177] report_bug+0x208/0x249 [ 35.219817] do_error_trap+0x195/0x2d0 [ 35.223704] ? math_error+0x2d0/0x2d0 [ 35.227493] ? trace_hardirqs_on+0x10/0x10 [ 35.231726] ? reiserfs_write_lock_nested+0x59/0xd0 [ 35.236748] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 35.241584] invalid_op+0x1b/0x40 [ 35.245042] RIP: 0010:unlock_new_inode+0x9a/0xc0 [ 35.249773] RSP: 0018:ffff8880985276d8 EFLAGS: 00010297 [ 35.255130] RAX: ffff88809ec522c0 RBX: ffff888081be01a8 RCX: 0000000000000000 [ 35.262415] RDX: 0000000000000000 RSI: 000000000000b0e5 RDI: ffff888081be0234 [ 35.269689] RBP: 0000000000000000 R08: ffffffff8a11484c R09: 0000000000001e4c [ 35.276946] R10: 0000000000000001 R11: ffff88809ec522c0 R12: ffff888081be0280 [ 35.284210] R13: ffff888081be0230 R14: 0000000000000000 R15: 00000000fffffff4 [ 35.291745] ? unlock_new_inode+0x9a/0xc0 [ 35.295881] reiserfs_new_inode+0x3a4/0x2100 [ 35.300298] ? __mutex_lock+0x360/0x1310 [ 35.304353] ? reiserfs_fh_to_parent+0x180/0x180 [ 35.309101] ? __ww_mutex_wakeup_for_backoff+0x210/0x210 [ 35.314569] ? __mutex_unlock_slowpath+0x75/0x770 [ 35.319398] ? wait_for_completion_io+0x10/0x10 [ 35.324074] ? wait_for_completion_io+0x10/0x10 [ 35.328747] ? do_journal_begin_r+0x9bf/0xca0 [ 35.333243] reiserfs_mkdir+0x41d/0x8b0 [ 35.337208] ? reiserfs_mknod+0x690/0x690 [ 35.341370] reiserfs_xattr_init+0x393/0xa49 [ 35.345788] reiserfs_fill_super+0x1b10/0x28b6 [ 35.350368] ? reiserfs_remount+0x1390/0x1390 [ 35.354866] ? lock_downgrade+0x740/0x740 [ 35.358999] ? snprintf+0xa5/0xd0 [ 35.362439] mount_bdev+0x2b3/0x360 [ 35.366048] ? reiserfs_remount+0x1390/0x1390 [ 35.370530] mount_fs+0x92/0x2a0 [ 35.373894] vfs_kern_mount.part.0+0x5b/0x470 [ 35.378384] do_mount+0xe53/0x2a00 [ 35.381917] ? copy_mount_string+0x40/0x40 [ 35.386148] ? rcu_read_lock_sched_held+0x16c/0x1d0 [ 35.391190] ? copy_mnt_ns+0xa30/0xa30 [ 35.395127] ? copy_mount_options+0x1fa/0x2f0 [ 35.399615] ? copy_mnt_ns+0xa30/0xa30 [ 35.403503] SyS_mount+0xa8/0x120 [ 35.406946] ? copy_mnt_ns+0xa30/0xa30 [ 35.410830] do_syscall_64+0x1d5/0x640 [ 35.414705] entry_SYSCALL_64_after_hwframe+0x46/0xbb [ 35.419894] RIP: 0033:0x446efa [ 35.423062] RSP: 002b:00007ffc1c2bdd88 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 35.430754] RAX: ffffffffffffffda RBX: 00007ffc1c2bdde0 RCX: 0000000000446efa [ 35.438024] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffc1c2bdda0 [ 35.445280] RBP: 00007ffc1c2bdda0 R08: 00007ffc1c2bdde0 R09: 00007ffc00000015 [ 35.453500] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000003 [ 35.460856] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 35.469486] Kernel Offset: disabled [ 35.473208] Rebooting in 86400 seconds..