====================================================== WARNING: possible circular locking dependency detected 4.14.156-syzkaller #0 Not tainted ------------------------------------------------------ syz-executor.5/15447 is trying to acquire lock: (&mm->mmap_sem){++++}, at: [] __might_fault+0xe0/0x1d0 mm/memory.c:4583 but task is already holding lock: (&rp->fetch_lock){+.+.}, at: [] mon_bin_read+0x5d/0x5e0 drivers/usb/mon/mon_bin.c:813 which lock already depends on the new lock. the existing dependency chain (in reverse order) is: -> #1 (&rp->fetch_lock){+.+.}: lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __mutex_lock_common kernel/locking/mutex.c:756 [inline] __mutex_lock+0xe8/0x1470 kernel/locking/mutex.c:893 mutex_lock_nested+0x16/0x20 kernel/locking/mutex.c:908 mon_bin_vma_fault+0x6f/0x280 drivers/usb/mon/mon_bin.c:1236 __do_fault+0x104/0x390 mm/memory.c:3223 do_cow_fault mm/memory.c:3662 [inline] do_fault mm/memory.c:3761 [inline] handle_pte_fault mm/memory.c:3989 [inline] __handle_mm_fault+0xde1/0x3470 mm/memory.c:4113 handle_mm_fault+0x293/0x7c0 mm/memory.c:4150 faultin_page mm/gup.c:514 [inline] __get_user_pages+0x465/0x1220 mm/gup.c:714 populate_vma_page_range+0x18e/0x230 mm/gup.c:1231 __mm_populate+0x198/0x2c0 mm/gup.c:1279 mm_populate include/linux/mm.h:2182 [inline] vm_mmap_pgoff+0x1be/0x1d0 mm/util.c:338 SYSC_mmap_pgoff mm/mmap.c:1551 [inline] SyS_mmap_pgoff+0x3ca/0x520 mm/mmap.c:1509 SYSC_mmap arch/x86/kernel/sys_x86_64.c:100 [inline] SyS_mmap+0x16/0x20 arch/x86/kernel/sys_x86_64.c:91 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 -> #0 (&mm->mmap_sem){++++}: check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __might_fault mm/memory.c:4584 [inline] __might_fault+0x143/0x1d0 mm/memory.c:4569 _copy_to_user+0x2c/0xd0 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] mon_bin_read+0x2fb/0x5e0 drivers/usb/mon/mon_bin.c:825 __vfs_read+0x105/0x6a0 fs/read_write.c:411 vfs_read+0x137/0x350 fs/read_write.c:447 SYSC_read fs/read_write.c:574 [inline] SyS_read+0xfd/0x230 fs/read_write.c:567 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 other info that might help us debug this: Possible unsafe locking scenario: CPU0 CPU1 ---- ---- lock(&rp->fetch_lock); lock(&mm->mmap_sem); lock(&rp->fetch_lock); lock(&mm->mmap_sem); *** DEADLOCK *** 1 lock held by syz-executor.5/15447: #0: (&rp->fetch_lock){+.+.}, at: [] mon_bin_read+0x5d/0x5e0 drivers/usb/mon/mon_bin.c:813 stack backtrace: CPU: 0 PID: 15447 Comm: syz-executor.5 Not tainted 4.14.156-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x142/0x197 lib/dump_stack.c:58 print_circular_bug.isra.0.cold+0x1cc/0x28f kernel/locking/lockdep.c:1258 check_prev_add kernel/locking/lockdep.c:1901 [inline] check_prevs_add kernel/locking/lockdep.c:2018 [inline] validate_chain kernel/locking/lockdep.c:2460 [inline] __lock_acquire+0x2cb3/0x4620 kernel/locking/lockdep.c:3487 lock_acquire+0x16f/0x430 kernel/locking/lockdep.c:3994 __might_fault mm/memory.c:4584 [inline] __might_fault+0x143/0x1d0 mm/memory.c:4569 _copy_to_user+0x2c/0xd0 lib/usercopy.c:25 copy_to_user include/linux/uaccess.h:155 [inline] mon_bin_read+0x2fb/0x5e0 drivers/usb/mon/mon_bin.c:825 __vfs_read+0x105/0x6a0 fs/read_write.c:411 vfs_read+0x137/0x350 fs/read_write.c:447 SYSC_read fs/read_write.c:574 [inline] SyS_read+0xfd/0x230 fs/read_write.c:567 do_syscall_64+0x1e8/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x42/0xb7 RIP: 0033:0x45a639 RSP: 002b:00007f9dca35cc78 EFLAGS: 00000246 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 000000000045a639 RDX: 000000000000002f RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000075bf20 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f9dca35d6d4 R13: 00000000004c8220 R14: 00000000004de548 R15: 00000000ffffffff kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env FAT-fs (loop2): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' FAT-fs (loop2): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env net_ratelimit: 25 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' FAT-fs (loop3): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kauditd_printk_skb: 51 callbacks suppressed audit: type=1804 audit(1574747623.866:9361): pid=15667 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir118660301/syzkaller.PCKEWk/865/file0/file0/bus" dev="ramfs" ino=173310 res=1 kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env audit: type=1804 audit(1574747623.866:9362): pid=15667 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir118660301/syzkaller.PCKEWk/865/file0/file0/bus" dev="ramfs" ino=173310 res=1 kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value FAT-fs (loop2): Unrecognized mount option "n1" or missing value kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env audit: type=1804 audit(1574747624.076:9363): pid=15740 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir118660301/syzkaller.PCKEWk/866/file0/bus" dev="ramfs" ino=173334 res=1 kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' audit: type=1804 audit(1574747624.096:9364): pid=15740 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir118660301/syzkaller.PCKEWk/866/file0/bus" dev="ramfs" ino=173334 res=1 audit: type=1804 audit(1574747624.096:9365): pid=15740 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir118660301/syzkaller.PCKEWk/866/file0/bus" dev="ramfs" ino=173334 res=1 kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env audit: type=1804 audit(1574747624.456:9366): pid=15715 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir387301457/syzkaller.5SYHGM/709/file0/file0/bus" dev="ramfs" ino=172631 res=1 kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' audit: type=1804 audit(1574747624.456:9367): pid=15762 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir734382616/syzkaller.YwVMec/26/file0/bus" dev="ramfs" ino=173374 res=1 kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value FAT-fs (loop2): Unrecognized mount option "n1" or missing value audit: type=1804 audit(1574747624.456:9368): pid=15762 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir734382616/syzkaller.YwVMec/26/file0/bus" dev="ramfs" ino=173374 res=1 kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' audit: type=1804 audit(1574747624.456:9369): pid=15762 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir734382616/syzkaller.YwVMec/26/file0/bus" dev="ramfs" ino=173374 res=1 audit: type=1804 audit(1574747624.496:9370): pid=15715 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.2" name="/root/syzkaller-testdir387301457/syzkaller.5SYHGM/709/file0/file0/bus" dev="ramfs" ino=172631 res=1 kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' FAT-fs (loop3): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' FAT-fs (loop3): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop1' (ffff8880a493ef20): kobject_uevent_env kobject: 'loop1' (ffff8880a493ef20): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'sit2' (ffff8880a18e8e70): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'sit2' (ffff8880a18e8e70): kobject_uevent_env kobject: 'sit2' (ffff8880a18e8e70): fill_kobj_path: path = '/devices/virtual/net/sit2' kobject: 'queues' (ffff8880a977af48): kobject_add_internal: parent: 'sit2', set: '' kobject: 'queues' (ffff8880a977af48): kobject_uevent_env kobject: 'queues' (ffff8880a977af48): kobject_uevent_env: filter function caused the event to drop! kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (ffff88808ecfd850): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'rx-0' (ffff88808ecfd850): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' kobject: 'rx-0' (ffff88808ecfd850): fill_kobj_path: path = '/devices/virtual/net/sit2/queues/rx-0' kobject: 'tx-0' (ffff8880401b3518): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'tx-0' (ffff8880401b3518): kobject_uevent_env kobject: 'tx-0' (ffff8880401b3518): fill_kobj_path: path = '/devices/virtual/net/sit2/queues/tx-0' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'vti3' (ffff88808fcd09b0): kobject_add_internal: parent: 'net', set: 'devices' kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'vti3' (ffff88808fcd09b0): kobject_uevent_env kobject: 'vti3' (ffff88808fcd09b0): fill_kobj_path: path = '/devices/virtual/net/vti3' kobject: 'queues' (ffff88804f3aad48): kobject_add_internal: parent: 'vti3', set: '' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'queues' (ffff88804f3aad48): kobject_uevent_env kobject: 'queues' (ffff88804f3aad48): kobject_uevent_env: filter function caused the event to drop! kobject: 'rx-0' (ffff88809f4456d0): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'rx-0' (ffff88809f4456d0): kobject_uevent_env kobject: 'rx-0' (ffff88809f4456d0): fill_kobj_path: path = '/devices/virtual/net/vti3/queues/rx-0' kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'tx-0' (ffff888053795058): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (ffff888053795058): kobject_uevent_env kobject: 'tx-0' (ffff888053795058): fill_kobj_path: path = '/devices/virtual/net/vti3/queues/tx-0' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' autofs4:pid:15983:autofs4_fill_super: called with bogus options net_ratelimit: 26 callbacks suppressed protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 autofs4:pid:15984:autofs4_fill_super: called with bogus options kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env autofs4:pid:15991:autofs4_fill_super: called with bogus options kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' protocol 88fb is buggy, dev hsr_slave_0 kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' autofs4:pid:16004:autofs4_fill_super: called with bogus options kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 autofs4:pid:16011:autofs4_fill_super: called with bogus options kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' autofs4:pid:16020:autofs4_fill_super: called with bogus options kobject: 'loop3' (ffff8880a49e09a0): kobject_uevent_env autofs4:pid:16023:autofs4_fill_super: called with bogus options kobject: 'loop3' (ffff8880a49e09a0): fill_kobj_path: path = '/devices/virtual/block/loop3' kauditd_printk_skb: 51 callbacks suppressed audit: type=1804 audit(1574747629.046:9422): pid=16025 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.4" name="/root/syzkaller-testdir734382616/syzkaller.YwVMec/33/file0/bus" dev="ramfs" ino=173048 res=1 kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env autofs4:pid:16029:autofs4_fill_super: called with bogus options kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' audit: type=1804 audit(1574747629.056:9423): pid=16025 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir734382616/syzkaller.YwVMec/33/file0/bus" dev="ramfs" ino=173048 res=1 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_0 protocol 88fb is buggy, dev hsr_slave_1 protocol 88fb is buggy, dev hsr_slave_1 kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' FAT-fs (loop4): Unrecognized mount option "nnonumtail=1" or missing value audit: type=1804 audit(1574747629.056:9424): pid=16025 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.4" name="/root/syzkaller-testdir734382616/syzkaller.YwVMec/33/file0/bus" dev="ramfs" ino=173048 res=1 kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' audit: type=1804 audit(1574747629.126:9425): pid=16030 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.3" name="/root/syzkaller-testdir118660301/syzkaller.PCKEWk/871/file0/bus" dev="ramfs" ino=173053 res=1 audit: type=1804 audit(1574747629.146:9426): pid=16030 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir118660301/syzkaller.PCKEWk/871/file0/bus" dev="ramfs" ino=173053 res=1 audit: type=1804 audit(1574747629.156:9427): pid=16030 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.3" name="/root/syzkaller-testdir118660301/syzkaller.PCKEWk/871/file0/bus" dev="ramfs" ino=173053 res=1 kobject: 'loop0' (ffff8880a4900ea0): kobject_uevent_env kobject: 'loop0' (ffff8880a4900ea0): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'loop5' (ffff8880a4a55320): kobject_uevent_env kobject: 'loop5' (ffff8880a4a55320): fill_kobj_path: path = '/devices/virtual/block/loop5' audit: type=1804 audit(1574747629.566:9428): pid=16055 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="open_writers" comm="syz-executor.2" name="/root/syzkaller-testdir387301457/syzkaller.5SYHGM/715/file0/bus" dev="ramfs" ino=174119 res=1 kobject: 'loop2' (ffff8880a4996920): kobject_uevent_env kobject: 'loop2' (ffff8880a4996920): fill_kobj_path: path = '/devices/virtual/block/loop2' autofs4:pid:16062:autofs4_fill_super: called with bogus options kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): kobject_uevent_env kobject: 'loop4' (ffff8880a4a1d2a0): fill_kobj_path: path = '/devices/virtual/block/loop4' audit: type=1804 audit(1574747629.576:9429): pid=16055 uid=0 auid=4294967295 ses=4294967295 subj=unconfined_u:system_r:insmod_t:s0-s0:c0.c1023 op="invalid_pcr" cause="ToMToU" comm="syz-executor.2" name="/root/syzkaller-testdir387301457/syzkaller.5SYHGM/715/file0/bus" dev="ramfs" ino=174119 res=1