[info] Using makefile-style concurrent boot in runlevel 2. [....] Starting enhanced syslogd: rsyslogd[ 9.140646] rsyslogd (2862) used greatest stack depth: 15056 bytes left [?25l[?1c7[ ok 8[?25h[?0c. [....] Starting periodic command scheduler: cron[?25l[?1c7[ ok 8[?25h[?0c. [....] Starting OpenBSD Secure Shell server: sshd[?25l[?1c7[ ok 8[?25h[?0c. Debian GNU/Linux 7 syzkaller ttyS0 Warning: Permanently added 'ci-upstream-next-kasan-gce-6,10.128.15.221' (ECDSA) to the list of known hosts. executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program 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executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program syzkaller login: [ 63.386233] ================================================================== [ 63.387395] BUG: KASAN: use-after-free in disk_unblock_events+0x51/0x60 [ 63.388376] Read of size 8 at addr ffff8801c79d8e00 by task blkid/8281 [ 63.389424] [ 63.389674] CPU: 0 PID: 8281 Comm: blkid Not tainted 4.14.0-rc5-next-20171018+ #36 [ 63.390775] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.392074] Call Trace: [ 63.392473] dump_stack+0x194/0x257 [ 63.393020] ? arch_local_irq_restore+0x53/0x53 [ 63.393894] ? show_regs_print_info+0x65/0x65 [ 63.394532] ? kfree_const+0x31/0x40 [ 63.395068] ? disk_unblock_events+0x51/0x60 [ 63.395667] print_address_description+0x73/0x250 [ 63.396323] ? disk_unblock_events+0x51/0x60 [ 63.396978] kasan_report+0x25b/0x340 [ 63.397531] __asan_report_load8_noabort+0x14/0x20 [ 63.398218] disk_unblock_events+0x51/0x60 [ 63.398820] __blkdev_get+0x78d/0xf90 [ 63.399449] ? __blkdev_put+0x7c0/0x7c0 [ 63.400007] blkdev_get+0x3a1/0xad0 [ 63.400523] ? do_raw_spin_trylock+0x190/0x190 [ 63.401219] ? bd_link_disk_holder+0x8b0/0x8b0 [ 63.401865] ? __fsnotify_parent+0xb4/0x3a0 [ 63.402498] ? errseq_sample+0xee/0x140 [ 63.403046] ? _copy_to_user+0xc0/0xc0 [ 63.403590] ? _raw_spin_unlock+0x22/0x30 [ 63.404186] blkdev_open+0x1c9/0x250 [ 63.404750] ? security_file_open+0x89/0x190 [ 63.405398] do_dentry_open+0x664/0xd40 [ 63.405998] ? security_inode_permission+0xbb/0xf0 [ 63.407385] ? bd_acquire+0x2c0/0x2c0 [ 63.411180] vfs_open+0x107/0x220 [ 63.414626] path_openat+0x1151/0x3520 [ 63.418519] ? path_lookupat+0xba0/0xba0 [ 63.422564] ? lock_downgrade+0x990/0x990 [ 63.426701] ? do_sys_open+0x2e7/0x6d0 [ 63.430581] ? do_raw_spin_trylock+0x190/0x190 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.435161] ? find_held_lock+0x35/0x1d0 [ 63.439217] ? __lock_is_held+0xb6/0x140 [ 63.443264] ? _find_next_bit+0xee/0x120 [ 63.447313] ? _raw_spin_unlock+0x22/0x30 [ 63.451438] ? __alloc_fd+0x29b/0x750 [ 63.455251] do_filp_open+0x25b/0x3b0 [ 63.459042] ? may_open_dev+0xe0/0xe0 [ 63.462845] ? mpi_resize+0x200/0x200 [ 63.466643] ? get_unused_fd_flags+0x121/0x190 [ 63.471217] ? getname_flags+0x256/0x580 [ 63.475275] do_sys_open+0x502/0x6d0 [ 63.478976] ? do_sys_open+0x502/0x6d0 [ 63.482856] ? filp_open+0x70/0x70 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.486382] ? entry_SYSCALL_64_fastpath+0x5/0xbe [ 63.491216] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 63.496236] SyS_open+0x2d/0x40 [ 63.499507] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 63.504245] RIP: 0033:0x7f5bbac98120 [ 63.507935] RSP: 002b:00007ffc98254fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 63.515629] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5bbac98120 [ 63.522884] RDX: 00007ffc98255f45 RSI: 0000000000000000 RDI: 00007ffc98255f45 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.530140] RBP: 0000000000000082 R08: 0000000000000078 R09: 0000000000000000 [ 63.537393] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403738 [ 63.544645] R13: 0000000000000001 R14: 0000000000000000 R15: 00007f5bbaf6ea20 [ 63.551928] [ 63.553538] Allocated by task 8275: [ 63.557154] save_stack+0x43/0xd0 [ 63.560588] kasan_kmalloc+0xad/0xe0 [ 63.564286] kmem_cache_alloc_node_trace+0x150/0x750 [ 63.569380] alloc_disk_node+0xb4/0x4e0 [ 63.573342] alloc_disk+0x18/0x20 [ 63.576789] loop_add+0x45c/0xa50 [ 63.580226] loop_probe+0x16d/0x1a0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.583837] kobj_lookup+0x2ac/0x410 [ 63.587535] get_gendisk+0x37/0x230 [ 63.591148] blkdev_get+0x12d/0xad0 [ 63.594760] blkdev_open+0x1c9/0x250 [ 63.598463] do_dentry_open+0x664/0xd40 [ 63.602421] vfs_open+0x107/0x220 [ 63.605857] path_openat+0x1151/0x3520 [ 63.609726] do_filp_open+0x25b/0x3b0 [ 63.613511] do_sys_open+0x502/0x6d0 [ 63.617206] SyS_open+0x2d/0x40 [ 63.620477] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 63.625210] [ 63.626818] Freed by task 8281: [ 63.630081] save_stack+0x43/0xd0 [ 63.633510] kasan_slab_free+0x71/0xc0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.637373] kfree+0xca/0x250 [ 63.640460] disk_release+0x327/0x410 [ 63.644243] device_release+0x7c/0x200 [ 63.648115] kobject_put+0x14c/0x240 [ 63.651816] put_disk+0x23/0x30 [ 63.655083] __blkdev_get+0x6ed/0xf90 [ 63.658864] blkdev_get+0x3a1/0xad0 [ 63.662471] blkdev_open+0x1c9/0x250 [ 63.666168] do_dentry_open+0x664/0xd40 [ 63.670126] vfs_open+0x107/0x220 [ 63.673559] path_openat+0x1151/0x3520 [ 63.677433] do_filp_open+0x25b/0x3b0 [ 63.681218] do_sys_open+0x502/0x6d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.684913] SyS_open+0x2d/0x40 [ 63.688177] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 63.692911] [ 63.694525] The buggy address belongs to the object at ffff8801c79d8880 [ 63.694525] which belongs to the cache kmalloc-2048 of size 2048 [ 63.707337] The buggy address is located 1408 bytes inside of [ 63.707337] 2048-byte region [ffff8801c79d8880, ffff8801c79d9080) [ 63.719361] The buggy address belongs to the page: [ 63.724264] page:ffffea00071e7600 count:1 mapcount:0 mapping:ffff8801c79d8000 index:0x0 compound_mapcount: 0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.734211] flags: 0x200000000008100(slab|head) [ 63.738855] raw: 0200000000008100 ffff8801c79d8000 0000000000000000 0000000100000003 [ 63.746718] raw: ffffea00071f5620 ffffea00071fe020 ffff8801dac00c40 0000000000000000 [ 63.754578] page dumped because: kasan: bad access detected [ 63.760267] [ 63.761875] Memory state around the buggy address: [ 63.766786] ffff8801c79d8d00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 63.774128] ffff8801c79d8d80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.781475] >ffff8801c79d8e00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 63.788811] ^ [ 63.792157] ffff8801c79d8e80: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 63.799497] ffff8801c79d8f00: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb [ 63.806833] ================================================================== [ 63.814173] Disabling lock debugging due to kernel taint [ 63.819798] Kernel panic - not syncing: panic_on_warn set ... [ 63.819798] [ 63.827142] CPU: 0 PID: 8281 Comm: blkid Tainted: G B 4.14.0-rc5-next-20171018+ #36 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.836133] Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 [ 63.845469] Call Trace: [ 63.848041] dump_stack+0x194/0x257 [ 63.851663] ? arch_local_irq_restore+0x53/0x53 [ 63.856318] ? kasan_end_report+0x32/0x50 [ 63.860454] ? trace_hardirqs_on_thunk+0x1a/0x1c [ 63.865197] ? vsnprintf+0x1ed/0x1900 [ 63.868994] ? disk_unblock_events+0x50/0x60 [ 63.873387] panic+0x1e4/0x41c [ 63.876570] ? refcount_error_report+0x214/0x214 [ 63.881310] ? add_taint+0x1c/0x50 [ 63.884834] ? add_taint+0x1c/0x50 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.888368] ? disk_unblock_events+0x51/0x60 [ 63.892770] kasan_end_report+0x50/0x50 [ 63.896725] kasan_report+0x144/0x340 [ 63.900518] __asan_report_load8_noabort+0x14/0x20 [ 63.905430] disk_unblock_events+0x51/0x60 [ 63.909650] __blkdev_get+0x78d/0xf90 [ 63.913446] ? __blkdev_put+0x7c0/0x7c0 [ 63.917414] blkdev_get+0x3a1/0xad0 [ 63.921034] ? do_raw_spin_trylock+0x190/0x190 [ 63.925602] ? bd_link_disk_holder+0x8b0/0x8b0 [ 63.930167] ? __fsnotify_parent+0xb4/0x3a0 [ 63.934473] ? errseq_sample+0xee/0x140 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.938434] ? _copy_to_user+0xc0/0xc0 [ 63.942307] ? _raw_spin_unlock+0x22/0x30 [ 63.946443] blkdev_open+0x1c9/0x250 [ 63.950141] ? security_file_open+0x89/0x190 [ 63.954536] do_dentry_open+0x664/0xd40 [ 63.958496] ? security_inode_permission+0xbb/0xf0 [ 63.963406] ? bd_acquire+0x2c0/0x2c0 [ 63.967198] vfs_open+0x107/0x220 [ 63.970645] path_openat+0x1151/0x3520 [ 63.974525] ? path_lookupat+0xba0/0xba0 [ 63.978571] ? lock_downgrade+0x990/0x990 [ 63.982702] ? do_sys_open+0x2e7/0x6d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 63.986576] ? do_raw_spin_trylock+0x190/0x190 [ 63.991143] ? find_held_lock+0x35/0x1d0 [ 63.995194] ? __lock_is_held+0xb6/0x140 [ 63.999239] ? _find_next_bit+0xee/0x120 [ 64.003292] ? _raw_spin_unlock+0x22/0x30 [ 64.007424] ? __alloc_fd+0x29b/0x750 [ 64.011216] do_filp_open+0x25b/0x3b0 [ 64.015004] ? may_open_dev+0xe0/0xe0 [ 64.018802] ? mpi_resize+0x200/0x200 [ 64.022593] ? get_unused_fd_flags+0x121/0x190 [ 64.027164] ? getname_flags+0x256/0x580 [ 64.031210] do_sys_open+0x502/0x6d0 [ 64.034905] ? do_sys_open+0x502/0x6d0 executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program executing program [ 64.038787] ? filp_open+0x70/0x70 [ 64.042309] ? entry_SYSCALL_64_fastpath+0x5/0xbe [ 64.047138] ? trace_hardirqs_on_caller+0x421/0x5c0 [ 64.052135] SyS_open+0x2d/0x40 [ 64.055409] entry_SYSCALL_64_fastpath+0x1f/0xbe [ 64.060140] RIP: 0033:0x7f5bbac98120 [ 64.063831] RSP: 002b:00007ffc98254fb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000002 [ 64.071524] RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f5bbac98120 [ 64.078771] RDX: 00007ffc98255f45 RSI: 0000000000000000 RDI: 00007ffc98255f45 executing program executing program executing program executing program executing program [ 64.086023] RBP: 0000000000000082 R08: 0000000000000078 R09: 0000000000000000 [ 64.093274] R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403738 [ 64.100523] R13: 0000000000000001 R14: 0000000000000000 R15: 00007f5bbaf6ea20 [ 64.107821] Dumping ftrace buffer: [ 64.111331] (ftrace buffer empty) [ 64.115008] Kernel Offset: disabled [ 64.118600] Rebooting in 86400 seconds..