[ OK ] Listening on Load/Save RF Kill Switch Status /dev/rfkill Watch. [ OK ] Started Getty on tty6. [ OK ] Started Getty on tty5. [ OK ] Started Getty on tty4. [ OK ] Started Getty on tty3. [ OK ] Started Getty on tty2. [ OK ] Started Serial Getty on ttyS0. [ OK ] Started Getty on tty1. [ OK ] Reached target Login Prompts. [ OK ] Reached target Multi-User System. [ 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 '10.128.0.10' (ECDSA) to the list of known hosts. executing program syzkaller login: [ 65.526709][ T27] audit: type=1400 audit(1600700145.534:8): avc: denied { execmem } for pid=6860 comm="syz-executor470" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 65.549350][ T6861] REISERFS (device loop0): found reiserfs format "3.6" with standard journal [ 65.560254][ T6861] REISERFS (device loop0): using ordered data mode [ 65.566830][ T6861] reiserfs: using flush barriers [ 65.577697][ T6861] REISERFS (device loop0): journal params: device loop0, size 8195, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 65.596223][ T6861] REISERFS (device loop0): checking transaction log (loop0) [ 66.549020][ T6861] REISERFS (device loop0): Using rupasov hash to sort names [ 66.557889][ T6861] ------------[ cut here ]------------ [ 66.563467][ T6861] WARNING: CPU: 1 PID: 6861 at fs/inode.c:996 unlock_new_inode+0x237/0x290 [ 66.572140][ T6861] Kernel panic - not syncing: panic_on_warn set ... [ 66.578822][ T6861] CPU: 1 PID: 6861 Comm: syz-executor470 Not tainted 5.9.0-rc6-syzkaller #0 [ 66.587701][ T6861] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 66.597757][ T6861] Call Trace: [ 66.601038][ T6861] dump_stack+0x198/0x1fd [ 66.605384][ T6861] panic+0x382/0x7fb [ 66.609439][ T6861] ? __warn_printk+0xf3/0xf3 [ 66.614014][ T6861] ? printk+0xba/0xed [ 66.618068][ T6861] ? log_store.cold+0x16/0x16 [ 66.622760][ T6861] ? __warn.cold+0x5/0x4b [ 66.627079][ T6861] ? __warn+0xd6/0x1f2 [ 66.631150][ T6861] ? unlock_new_inode+0x237/0x290 [ 66.636157][ T6861] __warn.cold+0x20/0x4b [ 66.640386][ T6861] ? unlock_new_inode+0x237/0x290 [ 66.645393][ T6861] report_bug+0x1bd/0x210 [ 66.649713][ T6861] handle_bug+0x38/0x90 [ 66.653869][ T6861] ? lock_release+0x8f0/0x8f0 [ 66.658544][ T6861] exc_invalid_op+0x14/0x40 [ 66.663030][ T6861] asm_exc_invalid_op+0x12/0x20 [ 66.667878][ T6861] RIP: 0010:unlock_new_inode+0x237/0x290 [ 66.673505][ T6861] Code: 44 0f bf 83 72 01 00 00 48 8d 95 c8 00 00 00 31 c9 4c 89 e7 48 c7 c6 00 ae 97 88 e8 03 36 93 ff e9 22 fe ff ff e8 19 49 ad ff <0f> 0b e9 6d fe ff ff 48 89 df e8 6a 18 ee ff e9 ea fd ff ff 4c 89 [ 66.693110][ T6861] RSP: 0018:ffffc900061a7668 EFLAGS: 00010293 [ 66.699166][ T6861] RAX: 0000000000000000 RBX: ffff888083e2c1d0 RCX: ffffffff81c8f392 [ 66.707122][ T6861] RDX: ffff88808eb5e180 RSI: ffffffff81c8f527 RDI: 0000000000000007 [ 66.715077][ T6861] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000003 [ 66.723030][ T6861] R10: 0000000000000000 R11: 00000000000a64a8 R12: ffff888083e2c2a8 [ 66.730982][ T6861] R13: ffff888083e2c258 R14: 0000000000000000 R15: 00000000fffffff4 [ 66.738964][ T6861] ? unlock_new_inode+0xa2/0x290 [ 66.743883][ T6861] ? unlock_new_inode+0x237/0x290 [ 66.748909][ T6861] ? unlock_new_inode+0x237/0x290 [ 66.754026][ T6861] reiserfs_new_inode+0x3b8/0x2130 [ 66.759153][ T6861] ? do_journal_begin_r+0x8a4/0x10d0 [ 66.764444][ T6861] ? reiserfs_fh_to_parent+0x1b0/0x1b0 [ 66.769898][ T6861] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.775258][ T6861] ? mutex_lock_io_nested+0xf60/0xf60 [ 66.780628][ T6861] ? __mutex_unlock_slowpath+0xe2/0x610 [ 66.786163][ T6861] ? wait_for_completion+0x260/0x260 [ 66.791484][ T6861] ? wait_for_completion+0x260/0x260 [ 66.796785][ T6861] ? do_journal_begin_r+0xd2e/0x10d0 [ 66.802074][ T6861] ? security_old_inode_init_security+0xf4/0x130 [ 66.808498][ T6861] reiserfs_mkdir+0x4ad/0x980 [ 66.813163][ T6861] ? reiserfs_mknod+0x700/0x700 [ 66.818014][ T6861] ? down_write_killable+0x170/0x170 [ 66.823281][ T6861] ? down_write_killable+0x170/0x170 [ 66.828555][ T6861] reiserfs_xattr_init+0x4de/0xb52 [ 66.833656][ T6861] reiserfs_fill_super+0x215d/0x2df3 [ 66.839067][ T6861] ? reiserfs_remount+0x1580/0x1580 [ 66.844956][ T6861] ? lock_downgrade+0x830/0x830 [ 66.849808][ T6861] ? snprintf+0xbb/0xf0 [ 66.853951][ T6861] ? wait_for_completion+0x260/0x260 [ 66.859440][ T6861] ? set_blocksize+0x1c1/0x400 [ 66.864251][ T6861] mount_bdev+0x32e/0x3f0 [ 66.868584][ T6861] ? reiserfs_remount+0x1580/0x1580 [ 66.873785][ T6861] ? reiserfs_kill_sb+0x1e0/0x1e0 [ 66.878812][ T6861] legacy_get_tree+0x105/0x220 [ 66.883672][ T6861] vfs_get_tree+0x89/0x2f0 [ 66.888076][ T6861] path_mount+0x1387/0x20a0 [ 66.892566][ T6861] ? strncpy_from_user+0x2bf/0x3e0 [ 66.897681][ T6861] ? copy_mount_string+0x40/0x40 [ 66.902639][ T6861] ? getname_flags.part.0+0x1dd/0x4f0 [ 66.907994][ T6861] __x64_sys_mount+0x27f/0x300 [ 66.912744][ T6861] ? copy_mnt_ns+0xa60/0xa60 [ 66.917316][ T6861] ? check_preemption_disabled+0x50/0x130 [ 66.923021][ T6861] ? syscall_enter_from_user_mode+0x1d/0x60 [ 66.928905][ T6861] do_syscall_64+0x2d/0x70 [ 66.933305][ T6861] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 66.939190][ T6861] RIP: 0033:0x447daa [ 66.943064][ T6861] 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 [ 66.962659][ T6861] RSP: 002b:00007ffd0dd47a78 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 66.971071][ T6861] RAX: ffffffffffffffda RBX: 00007ffd0dd47ad0 RCX: 0000000000447daa [ 66.979035][ T6861] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffd0dd47a90 [ 66.986987][ T6861] RBP: 00007ffd0dd47a90 R08: 00007ffd0dd47ad0 R09: 0000000000000000 [ 66.994940][ T6861] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000007 [ 67.002890][ T6861] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 67.012499][ T6861] Kernel Offset: disabled [ 67.016876][ T6861] Rebooting in 86400 seconds..