[ 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 '10.128.1.44' (ECDSA) to the list of known hosts. syzkaller login: [ 36.908478] BTRFS: device fsid 24c7a497-3402-47dd-bef8-82358f5f30e0 devid 1 transid 8 /dev/loop0 [ 36.922646] BTRFS info (device loop0): using free space tree [ 36.933918] BTRFS info (device loop0): has skinny extents [ 36.972387] FAULT_INJECTION: forcing a failure. [ 36.972387] name failslab, interval 1, probability 0, space 0, times 1 [ 36.984234] CPU: 0 PID: 7977 Comm: syz-executor203 Not tainted 4.14.300-syzkaller #0 [ 36.992107] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.001470] Call Trace: [ 37.004077] dump_stack+0x1b2/0x281 [ 37.007714] should_fail.cold+0x10a/0x149 [ 37.011851] should_failslab+0xd6/0x130 [ 37.015805] kmem_cache_alloc_trace+0x29a/0x3d0 [ 37.020481] btrfs_alloc_block_rsv+0x47/0x120 [ 37.024953] btrfs_orphan_add+0x315/0x450 [ 37.029076] btrfs_rmdir+0x1b5/0x5e0 [ 37.032772] vfs_rmdir.part.0+0x144/0x390 [ 37.036917] do_rmdir+0x334/0x3c0 [ 37.040346] ? kern_path_create+0x40/0x40 [ 37.044470] ? SyS_read+0x210/0x210 [ 37.048071] ? do_syscall_64+0x4c/0x640 [ 37.052019] ? SyS_mkdir+0x20/0x20 [ 37.055534] do_syscall_64+0x1d5/0x640 [ 37.059400] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 37.249884] BTRFS info (device loop0): using free space tree [ 37.256979] BTRFS info (device loop0): has skinny extents [ 37.294037] FAULT_INJECTION: forcing a failure. [ 37.294037] name failslab, interval 1, probability 0, space 0, times 0 [ 37.306852] CPU: 0 PID: 8012 Comm: syz-executor203 Not tainted 4.14.300-syzkaller #0 [ 37.314744] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.324088] Call Trace: [ 37.326675] dump_stack+0x1b2/0x281 [ 37.330287] should_fail.cold+0x10a/0x149 [ 37.334437] should_failslab+0xd6/0x130 [ 37.338402] kmem_cache_alloc_trace+0x29a/0x3d0 [ 37.343053] btrfs_alloc_block_rsv+0x47/0x120 [ 37.347526] btrfs_orphan_add+0x315/0x450 [ 37.351652] btrfs_rmdir+0x1b5/0x5e0 [ 37.355345] vfs_rmdir.part.0+0x144/0x390 [ 37.359472] do_rmdir+0x334/0x3c0 [ 37.362900] ? kern_path_create+0x40/0x40 [ 37.367024] ? SyS_read+0x210/0x210 [ 37.370634] ? do_syscall_64+0x4c/0x640 [ 37.374582] ? SyS_mkdir+0x20/0x20 [ 37.378099] do_syscall_64+0x1d5/0x640 [ 37.381977] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 37.576909] BTRFS info (device loop0): using free space tree [ 37.582741] BTRFS info (device loop0): has skinny extents [ 37.629024] FAULT_INJECTION: forcing a failure. [ 37.629024] name failslab, interval 1, probability 0, space 0, times 0 [ 37.640553] CPU: 1 PID: 8047 Comm: syz-executor203 Not tainted 4.14.300-syzkaller #0 [ 37.648439] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.657769] Call Trace: [ 37.660337] dump_stack+0x1b2/0x281 [ 37.663943] should_fail.cold+0x10a/0x149 [ 37.668070] should_failslab+0xd6/0x130 [ 37.672021] kmem_cache_alloc+0x28e/0x3c0 [ 37.676147] btrfs_insert_orphan_item+0x79/0xf0 [ 37.680790] ? btrfs_assert_tree_locked+0x50/0x50 [ 37.685606] ? do_raw_spin_unlock+0x164/0x220 [ 37.690079] ? _raw_spin_unlock+0x29/0x40 [ 37.694202] ? btrfs_block_rsv_migrate+0x10d/0x220 [ 37.699116] btrfs_orphan_add+0x1e5/0x450 [ 37.703249] btrfs_rmdir+0x1b5/0x5e0 [ 37.706941] vfs_rmdir.part.0+0x144/0x390 [ 37.711065] do_rmdir+0x334/0x3c0 [ 37.714498] ? kern_path_create+0x40/0x40 [ 37.718621] ? SyS_read+0x210/0x210 [ 37.722223] ? do_syscall_64+0x4c/0x640 [ 37.726170] ? SyS_mkdir+0x20/0x20 [ 37.729685] do_syscall_64+0x1d5/0x640 [ 37.733560] entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 37.744158] ------------[ cut here ]------------ [ 37.748907] WARNING: CPU: 1 PID: 8047 at fs/btrfs/inode.c:3478 btrfs_orphan_add.cold+0x14/0x37 [ 37.757726] Kernel panic - not syncing: panic_on_warn set ... [ 37.757726] [ 37.765072] CPU: 1 PID: 8047 Comm: syz-executor203 Not tainted 4.14.300-syzkaller #0 [ 37.772930] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022 [ 37.782366] Call Trace: [ 37.784947] dump_stack+0x1b2/0x281 [ 37.788558] panic+0x1f9/0x42d [ 37.791728] ? add_taint.cold+0x16/0x16 [ 37.795688] ? btrfs_orphan_add.cold+0x14/0x37 [ 37.800260] ? btrfs_orphan_add.cold+0x14/0x37 [ 37.804825] __warn.cold+0x20/0x44 [ 37.808347] ? ist_end_non_atomic+0x10/0x10 [ 37.812648] ? btrfs_orphan_add.cold+0x14/0x37 [ 37.817221] report_bug+0x208/0x250 [ 37.820836] do_error_trap+0x195/0x2d0 [ 37.824700] ? math_error+0x2d0/0x2d0 [ 37.828484] ? trace_hardirqs_off_thunk+0x1a/0x1c [ 37.833304] invalid_op+0x1b/0x40 [ 37.836759] ? btrfs_orphan_add.cold+0x14/0x37 [ 37.841320] ? btrfs_rmdir+0x1b5/0x5e0 [ 37.845183] ? vfs_rmdir.part.0+0x144/0x390 [ 37.849489] ? do_rmdir+0x334/0x3c0 [ 37.853097] ? kern_path_create+0x40/0x40 [ 37.857224] ? SyS_read+0x210/0x210 [ 37.860831] ? do_syscall_64+0x4c/0x640 [ 37.864779] ? SyS_mkdir+0x20/0x20 [ 37.868321] ? do_syscall_64+0x1d5/0x640 [ 37.872357] ? entry_SYSCALL_64_after_hwframe+0x5e/0xd3 [ 37.877934] Kernel Offset: disabled [ 37.881581] Rebooting in 86400 seconds..