[ 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 '10.128.0.225' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 40.159037] audit: type=1400 audit(1601832996.807:8): avc: denied { execmem } for pid=6472 comm="syz-executor836" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 40.186750] REISERFS (device loop0): found reiserfs format "3.5" with standard journal [ 40.196043] REISERFS (device loop0): using ordered data mode [ 40.202184] reiserfs: using flush barriers [ 40.207516] 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 [ 40.225504] REISERFS (device loop0): checking transaction log (loop0) [ 41.090430] REISERFS (device loop0): Using rupasov hash to sort names [ 41.097289] REISERFS (device loop0): using 3.5.x disk format [ 41.103977] ------------[ cut here ]------------ [ 41.109029] WARNING: CPU: 1 PID: 6473 at fs/inode.c:979 unlock_new_inode.cold+0x11/0x3f [ 41.117152] Kernel panic - not syncing: panic_on_warn set ... [ 41.117152] [ 41.124496] CPU: 1 PID: 6473 Comm: syz-executor836 Not tainted 4.19.149-syzkaller #0 [ 41.132387] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 41.141741] Call Trace: [ 41.144348] dump_stack+0x22c/0x33e [ 41.147963] panic+0x2ac/0x565 [ 41.151137] ? __warn_printk+0xf3/0xf3 [ 41.155010] ? unlock_new_inode.cold+0x11/0x3f [ 41.159593] ? __probe_kernel_read+0x130/0x1b0 [ 41.164173] ? __warn.cold+0x5/0x5a [ 41.167784] ? __warn+0xe4/0x200 [ 41.171150] ? unlock_new_inode.cold+0x11/0x3f [ 41.175713] __warn.cold+0x20/0x5a [ 41.179251] ? unlock_new_inode.cold+0x11/0x3f [ 41.183823] report_bug+0x262/0x2b0 [ 41.187438] do_error_trap+0x1e1/0x330 [ 41.191328] ? math_error+0x320/0x320 [ 41.195116] ? irq_work_claim+0xa6/0xc0 [ 41.199077] ? irq_work_queue+0x29/0x80 [ 41.203068] ? error_entry+0x72/0xd0 [ 41.206766] ? trace_hardirqs_off_caller+0x6e/0x210 [ 41.211879] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 41.217335] invalid_op+0x14/0x20 [ 41.220772] RIP: 0010:unlock_new_inode.cold+0x11/0x3f [ 41.225950] Code: ee e8 21 d7 b4 ff 48 c7 c7 80 0f 16 88 e8 c4 52 9e ff 0f 0b e9 a7 76 ff ff e8 09 d7 b4 ff 48 c7 c7 80 0f 16 88 e8 ac 52 9e ff <0f> 0b b8 ff ff 37 00 4c 89 e2 48 c1 ea 03 48 c1 e0 2a 80 3c 02 00 [ 41.244851] RSP: 0018:ffff88808969f600 EFLAGS: 00010282 [ 41.250203] RAX: 0000000000000024 RBX: ffff8880809851a8 RCX: 0000000000000000 [ 41.257450] RDX: 0000000000000000 RSI: ffffffff815b623f RDI: ffffed10112d3eb2 [ 41.264714] RBP: 0000000000000000 R08: 0000000000000024 R09: 0000000000000000 [ 41.271963] R10: 0000000000000005 R11: 0000000000000000 R12: ffff888080985278 [ 41.279218] R13: ffff888080985230 R14: 0000000000000000 R15: 00000000fffffff4 [ 41.286486] ? vprintk_func+0x7f/0x224 [ 41.290373] reiserfs_new_inode+0x3b8/0x2150 [ 41.294775] ? find_held_lock+0x58/0x110 [ 41.298836] ? reiserfs_fh_to_parent+0x1b0/0x1b0 [ 41.303580] ? ww_mutex_unlock+0x2f0/0x2f0 [ 41.307802] ? do_journal_begin_r+0x298/0x10d0 [ 41.312370] ? ww_mutex_unlock+0x2f0/0x2f0 [ 41.316607] ? __mutex_unlock_slowpath+0xea/0x660 [ 41.321431] ? __mutex_add_waiter+0x160/0x160 [ 41.325908] ? __mutex_add_waiter+0x160/0x160 [ 41.330390] ? do_journal_begin_r+0xd24/0x10d0 [ 41.334979] ? security_old_inode_init_security+0xf4/0x130 [ 41.340588] reiserfs_mkdir+0x4ad/0x980 [ 41.344547] ? reiserfs_mknod+0x700/0x700 [ 41.348712] reiserfs_xattr_init+0x406/0xae0 [ 41.353103] reiserfs_fill_super+0x222a/0x2e60 [ 41.357682] ? reiserfs_remount+0x1640/0x1640 [ 41.362174] ? lock_downgrade+0x750/0x750 [ 41.366316] ? snprintf+0xbb/0xf0 [ 41.369753] ? __mutex_add_waiter+0x160/0x160 [ 41.374249] mount_bdev+0x2fc/0x3b0 [ 41.377857] ? reiserfs_remount+0x1640/0x1640 [ 41.382335] mount_fs+0xa3/0x318 [ 41.385700] vfs_kern_mount.part.0+0x68/0x470 [ 41.390206] do_mount+0x51c/0x2f10 [ 41.393738] ? check_preemption_disabled+0x41/0x2b0 [ 41.398755] ? copy_mount_string+0x40/0x40 [ 41.402975] ? kmem_cache_alloc_trace+0x379/0x4b0 [ 41.407807] ? _copy_from_user+0xd2/0x130 [ 41.411954] ? copy_mount_options+0x261/0x370 [ 41.416442] ksys_mount+0xcf/0x130 [ 41.419968] __x64_sys_mount+0xba/0x150 [ 41.423965] ? lockdep_hardirqs_on+0x3c1/0x5e0 [ 41.428577] do_syscall_64+0xf9/0x670 [ 41.432372] entry_SYSCALL_64_after_hwframe+0x49/0xbe [ 41.437579] RIP: 0033:0x447d1a [ 41.440761] Code: b8 08 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 7d a3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 49 89 ca b8 a5 00 00 00 0f 05 <48> 3d 01 f0 ff ff 0f 83 5a a3 fb ff c3 66 0f 1f 84 00 00 00 00 00 [ 41.459659] RSP: 002b:00007ffd45bb49c8 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 41.467355] RAX: ffffffffffffffda RBX: 00007ffd45bb4a20 RCX: 0000000000447d1a [ 41.474628] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd45bb49e0 [ 41.481877] RBP: 00007ffd45bb49e0 R08: 00007ffd45bb4a20 R09: 0000000000000000 [ 41.489126] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000003 [ 41.496373] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 41.504921] Kernel Offset: disabled [ 41.508622] Rebooting in 86400 seconds..