Starting OpenBSD Secure Shell server... [ OK ] Started Daily Cleanup of Temporary Directories. [ OK ] Started Daily apt upgrade and clean activities. [ OK ] Reached target Timers. Starting Permit User Sessions... [ OK ] Started System Logging Service. [ OK ] Found device /dev/ttyS0. [ OK ] Started Permit User Sessions. [ OK ] Started OpenBSD Secure Shell server. [ OK ] Started getty on tty2-tty6 if dbus and logind are not available. [ 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 Getty on tty1. [ OK ] Started Serial Getty on ttyS0. [ 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. Warning: Permanently added '10.128.0.41' (ECDSA) to the list of known hosts. Debian GNU/Linux 9 syzkaller ttyS0 executing program syzkaller login: [ 74.669446][ T27] audit: type=1400 audit(1602327822.733:8): avc: denied { execmem } for pid=6862 comm="syz-executor817" scontext=system_u:system_r:kernel_t:s0 tcontext=system_u:system_r:kernel_t:s0 tclass=process permissive=1 [ 74.700132][ T6863] REISERFS (device loop0): found reiserfs format "3.6" with non-standard journal [ 74.709643][ T6863] REISERFS (device loop0): using ordered data mode [ 74.716143][ T6863] reiserfs: using flush barriers [ 74.722907][ T6863] REISERFS (device loop0): journal params: device loop0, size 15748, journal first block 18, max trans len 1024, max batch 900, max commit age 30, max trans age 30 [ 74.743030][ T6863] REISERFS (device loop0): checking transaction log (loop0) [ 76.762117][ T6863] REISERFS (device loop0): Using r5 hash to sort names [ 76.770083][ T6863] ------------[ cut here ]------------ [ 76.775690][ T6863] WARNING: CPU: 0 PID: 6863 at fs/inode.c:996 unlock_new_inode+0x237/0x290 [ 76.784983][ T6863] Kernel panic - not syncing: panic_on_warn set ... [ 76.791612][ T6863] CPU: 0 PID: 6863 Comm: syz-executor817 Not tainted 5.9.0-rc8-syzkaller #0 [ 76.800309][ T6863] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 76.810373][ T6863] Call Trace: [ 76.813771][ T6863] dump_stack+0x198/0x1fd [ 76.818220][ T6863] panic+0x382/0x7fb [ 76.822167][ T6863] ? __warn_printk+0xf3/0xf3 [ 76.826768][ T6863] ? printk+0xba/0xed [ 76.830765][ T6863] ? log_store.cold+0x16/0x16 [ 76.835440][ T6863] ? __warn.cold+0x5/0x4b [ 76.839767][ T6863] ? __warn+0xd6/0x1f2 [ 76.843851][ T6863] ? unlock_new_inode+0x237/0x290 [ 76.848882][ T6863] __warn.cold+0x20/0x4b [ 76.853119][ T6863] ? unlock_new_inode+0x237/0x290 [ 76.858125][ T6863] report_bug+0x1bd/0x210 [ 76.862448][ T6863] handle_bug+0x38/0x90 [ 76.866598][ T6863] ? lock_release+0x8f0/0x8f0 [ 76.871264][ T6863] exc_invalid_op+0x14/0x40 [ 76.875776][ T6863] asm_exc_invalid_op+0x12/0x20 [ 76.880747][ T6863] RIP: 0010:unlock_new_inode+0x237/0x290 [ 76.886376][ T6863] Code: 44 0f bf 83 72 01 00 00 48 8d 95 c8 00 00 00 31 c9 4c 89 e7 48 c7 c6 80 b0 97 88 e8 b3 1d 93 ff e9 22 fe ff ff e8 c9 30 ad ff <0f> 0b e9 6d fe ff ff 48 89 df e8 2a 09 ee ff e9 ea fd ff ff 4c 89 [ 76.906017][ T6863] RSP: 0018:ffffc900017e7668 EFLAGS: 00010293 [ 76.912094][ T6863] RAX: 0000000000000000 RBX: ffff8880837e71d0 RCX: ffffffff81c90cb2 [ 76.920084][ T6863] RDX: ffff88808ea265c0 RSI: ffffffff81c90e47 RDI: 0000000000000007 [ 76.928042][ T6863] RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000003 [ 76.936016][ T6863] R10: 0000000000000000 R11: 00000000000a66d8 R12: ffff8880837e72a8 [ 76.944014][ T6863] R13: ffff8880837e7258 R14: 0000000000000000 R15: 00000000fffffff4 [ 76.952049][ T6863] ? unlock_new_inode+0xa2/0x290 [ 76.956975][ T6863] ? unlock_new_inode+0x237/0x290 [ 76.961989][ T6863] ? unlock_new_inode+0x237/0x290 [ 76.967030][ T6863] reiserfs_new_inode+0x3b8/0x2130 [ 76.972157][ T6863] ? do_journal_begin_r+0x8a4/0x10d0 [ 76.977471][ T6863] ? reiserfs_fh_to_parent+0x1b0/0x1b0 [ 76.982928][ T6863] ? mutex_lock_io_nested+0xf60/0xf60 [ 76.988294][ T6863] ? mutex_lock_io_nested+0xf60/0xf60 [ 76.993664][ T6863] ? __mutex_unlock_slowpath+0xe2/0x610 [ 76.999201][ T6863] ? wait_for_completion+0x260/0x260 [ 77.004470][ T6863] ? wait_for_completion+0x260/0x260 [ 77.009841][ T6863] ? do_journal_begin_r+0xd2e/0x10d0 [ 77.015126][ T6863] ? security_old_inode_init_security+0xf4/0x130 [ 77.021472][ T6863] reiserfs_mkdir+0x4ad/0x980 [ 77.026147][ T6863] ? reiserfs_mknod+0x700/0x700 [ 77.031047][ T6863] ? down_write_killable+0x170/0x170 [ 77.036345][ T6863] ? down_write_killable+0x170/0x170 [ 77.041668][ T6863] reiserfs_xattr_init+0x4de/0xb52 [ 77.046803][ T6863] reiserfs_fill_super+0x215d/0x2df3 [ 77.052130][ T6863] ? reiserfs_remount+0x1580/0x1580 [ 77.057329][ T6863] ? lock_downgrade+0x830/0x830 [ 77.062190][ T6863] ? snprintf+0xbb/0xf0 [ 77.066390][ T6863] ? wait_for_completion+0x260/0x260 [ 77.071682][ T6863] ? set_blocksize+0x1c1/0x400 [ 77.076445][ T6863] mount_bdev+0x32e/0x3f0 [ 77.080762][ T6863] ? reiserfs_remount+0x1580/0x1580 [ 77.085946][ T6863] ? reiserfs_kill_sb+0x1e0/0x1e0 [ 77.090963][ T6863] legacy_get_tree+0x105/0x220 [ 77.095727][ T6863] vfs_get_tree+0x89/0x2f0 [ 77.100143][ T6863] path_mount+0x1387/0x20a0 [ 77.104652][ T6863] ? strncpy_from_user+0x2bf/0x3e0 [ 77.109790][ T6863] ? copy_mount_string+0x40/0x40 [ 77.114736][ T6863] ? getname_flags.part.0+0x1dd/0x4f0 [ 77.120147][ T6863] __x64_sys_mount+0x27f/0x300 [ 77.124919][ T6863] ? copy_mnt_ns+0xa60/0xa60 [ 77.129521][ T6863] ? check_preemption_disabled+0x50/0x130 [ 77.135233][ T6863] ? syscall_enter_from_user_mode+0x1d/0x60 [ 77.141225][ T6863] do_syscall_64+0x2d/0x70 [ 77.145651][ T6863] entry_SYSCALL_64_after_hwframe+0x44/0xa9 [ 77.151545][ T6863] RIP: 0033:0x447dba [ 77.155435][ T6863] 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 [ 77.175078][ T6863] RSP: 002b:00007ffe04226a88 EFLAGS: 00000297 ORIG_RAX: 00000000000000a5 [ 77.183510][ T6863] RAX: ffffffffffffffda RBX: 00007ffe04226ae0 RCX: 0000000000447dba [ 77.191495][ T6863] RDX: 0000000020000000 RSI: 0000000020000100 RDI: 00007ffe04226aa0 [ 77.199469][ T6863] RBP: 00007ffe04226aa0 R08: 00007ffe04226ae0 R09: 0000000000000000 [ 77.207440][ T6863] R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000007 [ 77.215420][ T6863] R13: 0000000000000004 R14: 0000000000000003 R15: 0000000000000003 [ 77.224906][ T6863] Kernel Offset: disabled [ 77.229362][ T6863] Rebooting in 86400 seconds..