kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 5633 Comm: udevd Not tainted 4.20.0-rc1-next-20181107+ #107 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567 Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40 kasan: CONFIG_KASAN_INLINE enabled RSP: 0018:ffff8801ba007880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff8801ba007a60 R08: ffff8801ba78c680 R09: ffffed003b5e5b67 R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801b8806a40 R13: ffff8801ba0078f8 R14: 1ffff10037400f13 R15: dffffc0000000000 FS: 00007f59c7a6d7a0(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 00000001d8a45000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: audit: type=1804 audit(1541565887.369:32): pid=7900 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor0" name="/root/syzkaller-testdir520283708/syzkaller.smZvCP/25/bus" dev="sda1" ino=16613 res=1 kasan: CONFIG_KASAN_INLINE enabled locks_remove_file+0x148/0x5c0 fs/locks.c:2607 kasan: GPF could be caused by NULL-ptr deref or user memory access kobject: 'þ€' (0000000058994fc9): kobject_add_internal: parent: 'net', set: 'devices' __fput+0x2f0/0xa70 fs/file_table.c:271 kobject: 'þ€' (0000000058994fc9): kobject_uevent_env ____fput+0x15/0x20 fs/file_table.c:312 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 kasan: GPF could be caused by NULL-ptr deref or user memory access audit: type=1804 audit(1541565887.379:33): pid=7907 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor0" name="/root/syzkaller-testdir520283708/syzkaller.smZvCP/25/bus" dev="sda1" ino=16613 res=1 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f59c71752b0 Code: 40 75 0b 31 c0 48 83 c4 08 e9 0c ff ff ff 48 8d 3d c5 32 08 00 e8 c0 07 02 00 83 3d 45 a3 2b 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ce 8a 01 00 48 89 04 24 RSP: 002b:00007fff7fe82af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000039 RCX: 00007f59c71752b0 RDX: 00007fff7fe85d50 RSI: 0000000000000002 RDI: 0000000000000008 RBP: 00007fff7fe84400 R08: 00007fff7ff670b0 R09: 00007fff7ff67080 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff7fe82bd0 R13: 0000000000000001 R14: 00007fff7fe82b64 R15: 000000000178f250 Modules linked in: general protection fault: 0000 [#2] PREEMPT SMP KASAN CPU: 0 PID: 3872 Comm: udevd Tainted: G D 4.20.0-rc1-next-20181107+ #107 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567 Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40 RSP: 0018:ffff8801bf757880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff8801bf757a60 R08: ffff8801bce741c0 R09: ffffed003815083f R10: ffffed003815083f R11: ffff8801c0a841fb R12: ffff8801bb7b8000 R13: ffff8801bf7578f8 R14: 1ffff10037eeaf13 R15: dffffc0000000000 FS: 00007f59c7a6d7a0(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2dc22000 CR3: 00000001bc809000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: locks_remove_file+0x148/0x5c0 fs/locks.c:2607 __fput+0x2f0/0xa70 fs/file_table.c:271 ____fput+0x15/0x20 fs/file_table.c:312 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f59c71752b0 Code: 40 75 0b 31 c0 48 83 c4 08 e9 0c ff ff ff 48 8d 3d c5 32 08 00 e8 c0 07 02 00 83 3d 45 a3 2b 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ce 8a 01 00 48 89 04 24 RSP: 002b:00007fff7fe82af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 000000000178f250 RCX: 00007f59c71752b0 RDX: 00007fff7fe85d50 RSI: 0000000000000002 RDI: 0000000000000007 RBP: 0000000000625500 R08: 00007fff7ff670b0 R09: 00007fff7ff67080 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff7fe82bd0 R13: 0000000000000001 R14: 00007fff7fe82b64 R15: 000000000178f250 Modules linked in: general protection fault: 0000 [#3] PREEMPT SMP KASAN CPU: 1 PID: 7142 Comm: udevd Tainted: G D 4.20.0-rc1-next-20181107+ #107 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567 Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40 ---[ end trace 933b924f2d047adb ]--- RSP: 0018:ffff88018bfaf880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff88018bfafa60 R08: ffff8801c015e080 R09: ffffed003815083f R10: ffffed003815083f R11: ffff8801c0a841fb R12: ffff8801c0b1c800 R13: ffff88018bfaf8f8 R14: 1ffff100317f5f13 R15: dffffc0000000000 FS: 00007f59c7a6d7a0(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 kasan: CONFIG_KASAN_INLINE enabled CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000004d79d8 CR3: 00000001b6e3a000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kasan: CONFIG_KASAN_INLINE enabled RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567 kasan: GPF could be caused by NULL-ptr deref or user memory access locks_remove_file+0x148/0x5c0 fs/locks.c:2607 Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40 kasan: GPF could be caused by NULL-ptr deref or user memory access __fput+0x2f0/0xa70 fs/file_table.c:271 ____fput+0x15/0x20 fs/file_table.c:312 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x7f59c71752b0 Code: 40 75 0b 31 c0 48 83 c4 08 e9 0c ff ff ff 48 8d 3d c5 32 08 00 e8 c0 07 02 00 83 3d 45 a3 2b 00 00 75 10 b8 03 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 31 c3 48 83 ec 08 e8 ce 8a 01 00 48 89 04 24 RSP: 002b:00007fff7fe82af8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 000000000178f250 RCX: 00007f59c71752b0 RDX: 00007fff7fe85d50 RSI: 0000000000000002 RDI: 0000000000000007 RBP: 0000000000625500 R08: 00007fff7ff670b0 R09: 00007fff7ff67080 R10: 0000000000000000 R11: 0000000000000246 R12: 00007fff7fe82bd0 R13: 0000000000000001 R14: 00007fff7fe82b64 R15: 000000000178f250 Modules linked in: general protection fault: 0000 [#4] PREEMPT SMP KASAN CPU: 0 PID: 7904 Comm: syz-executor3 Tainted: G D 4.20.0-rc1-next-20181107+ #107 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567 Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40 RSP: 0018:ffff8801bdc77880 EFLAGS: 00010a02 RAX: dffffc0000000000 RBX: c23314e986f62600 RCX: ffffc900085a5000 RDX: 1846629d30dec4c1 RSI: ffffffff81ed5c71 RDI: c23314e986f62608 RBP: ffff8801bdc77a60 R08: ffff8801be78c0c0 R09: 00000000bca5fffb R10: 00000000a8936d98 R11: ffff8801be78c0c0 R12: ffff8801b7b8a0c0 R13: ffff8801bdc778f8 R14: 1ffff10037b8ef13 R15: dffffc0000000000 FS: 00007ff0a7374700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fef4bd5bdb8 CR3: 00000001c7ca3000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: locks_remove_file+0x148/0x5c0 fs/locks.c:2607 __fput+0x2f0/0xa70 fs/file_table.c:271 ____fput+0x15/0x20 fs/file_table.c:312 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x457569 Code: fd b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 0f 83 cb b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007ff0a7373c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000127 RAX: fffffffffffffffe RBX: 0000000000000004 RCX: 0000000000457569 RDX: 00000000000001d0 RSI: 00000000200017c0 RDI: 0000000000000008 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ff0a73746d4 R13: 00000000004c32f9 R14: 00000000004d4f48 R15: 00000000ffffffff Modules linked in: kobject: 'þ€' (0000000058994fc9): fill_kobj_path: path = '/devices/virtual/net/þ€' kobject: 'loop5' (000000008363ba7c): kobject_uevent_env general protection fault: 0000 [#5] PREEMPT SMP KASAN kobject: 'queues' (000000004875daaf): kobject_add_internal: parent: 'þ€', set: '' CPU: 0 PID: 7893 Comm: syz-executor3 Tainted: G D 4.20.0-rc1-next-20181107+ #107 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567 kobject: 'queues' (000000004875daaf): kobject_uevent_env Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40 RSP: 0018:ffff8801bd3ff880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb kobject: 'queues' (000000004875daaf): kobject_uevent_env: filter function caused the event to drop! RBP: ffff8801bd3ffa60 R08: ffff8801b76ec080 R09: fffffbfff1322588 R10: fffffbfff1322588 R11: ffffffff89912c43 R12: ffff8801d1c4e580 R13: ffff8801bd3ff8f8 R14: 1ffff10037a7ff13 R15: dffffc0000000000 FS: 0000000001765940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 kobject: 'rx-0' (0000000049118523): kobject_add_internal: parent: 'queues', set: 'queues' CR2: 0000000000709934 CR3: 00000001c7ca3000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: kobject: 'rx-0' (0000000049118523): kobject_uevent_env kobject: 'rx-0' (0000000049118523): fill_kobj_path: path = '/devices/virtual/net/þ€/queues/rx-0' kobject: 'tx-0' (000000002dcb71bb): kobject_add_internal: parent: 'queues', set: 'queues' kobject: 'tx-0' (000000002dcb71bb): kobject_uevent_env kobject: 'tx-0' (000000002dcb71bb): fill_kobj_path: path = '/devices/virtual/net/þ€/queues/tx-0' kobject: 'brif' (00000000efe18d07): kobject_add_internal: parent: 'þ€', set: '' locks_remove_file+0x148/0x5c0 fs/locks.c:2607 kobject: 'brif' (00000000efe18d07): kobject_cleanup, parent 0000000058994fc9 kobject: 'brif' (00000000efe18d07): auto cleanup kobject_del __fput+0x2f0/0xa70 fs/file_table.c:271 kobject: 'brif' (00000000efe18d07): calling ktype release ____fput+0x15/0x20 fs/file_table.c:312 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 kobject: (00000000efe18d07): dynamic_kobj_release kobject: 'brif': free name tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 prepare_exit_to_usermode arch/x86/entry/common.c:197 [inline] syscall_return_slowpath arch/x86/entry/common.c:268 [inline] do_syscall_64+0x6be/0x820 arch/x86/entry/common.c:293 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x411021 Code: 75 14 b8 03 00 00 00 0f 05 48 3d 01 f0 ff ff 0f 83 34 19 00 00 c3 48 83 ec 08 e8 0a fc ff ff 48 89 04 24 b8 03 00 00 00 0f 05 <48> 8b 3c 24 48 89 c2 e8 53 fc ff ff 48 89 d0 48 83 c4 08 48 3d 01 RSP: 002b:00007fff70921d30 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000008 RCX: 0000000000411021 RDX: 0000000000000000 RSI: 0000000000730fb0 RDI: 0000000000000007 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007fff70921c60 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000015 R15: 0000000000000003 Modules linked in: RSP: 0018:ffff8801ba007880 EFLAGS: 00010202 kobject: 'rx-0' (0000000049118523): kobject_cleanup, parent 000000004875daaf kobject: 'loop5' (000000008363ba7c): fill_kobj_path: path = '/devices/virtual/block/loop5' kobject: 'rx-0' (0000000049118523): auto cleanup 'remove' event RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d kobject: 'rx-0' (0000000049118523): kobject_uevent_env kobject: 'rx-0' (0000000049118523): fill_kobj_path: path = '/devices/virtual/net/þ€/queues/rx-0' RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb kobject: 'rx-0' (0000000049118523): auto cleanup kobject_del kobject: 'rx-0' (0000000049118523): calling ktype release RBP: ffff8801ba007a60 R08: ffff8801ba78c680 R09: ffffed003b5e5b67 kobject: 'rx-0': free name R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801b8806a40 kobject: 'tx-0' (000000002dcb71bb): kobject_cleanup, parent 000000004875daaf ---[ end trace 933b924f2d047adc ]--- audit: type=1804 audit(1541565889.959:34): pid=7931 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor5" name="/root/syzkaller-testdir922456010/syzkaller.fg94wT/26/bus" dev="sda1" ino=16612 res=1 RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567 Code: 00 0f 85 3a 01 00 00 48 8b 5b 98 48 85 db 74 3a e8 1f 41 92 ff 48 8d 7b 08 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 17 01 00 00 48 8b 5b 08 48 85 db 74 0d e8 f2 40 R13: ffff8801ba0078f8 R14: 1ffff10037400f13 R15: dffffc0000000000 RSP: 0018:ffff8801ba007880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb kobject: 'tx-0' (000000002dcb71bb): auto cleanup 'remove' event RBP: ffff8801ba007a60 R08: ffff8801ba78c680 R09: ffffed003b5e5b67 R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801b8806a40 R13: ffff8801ba0078f8 R14: 1ffff10037400f13 R15: dffffc0000000000 kobject: 'tx-0' (000000002dcb71bb): kobject_uevent_env FS: 00007f59c7a6d7a0(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 FS: 00007f59c7a6d7a0(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 audit: type=1800 audit(1541565889.979:35): pid=7931 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor5" name="bus" dev="sda1" ino=16612 res=0 CR2: 00007ffc90bfaccc CR3: 00000001d8a45000 CR4: 00000000001406e0 kobject: 'tx-0' (000000002dcb71bb): fill_kobj_path: path = '/devices/virtual/net/þ€/queues/tx-0' CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b2ee2e000 CR3: 00000001bc809000 CR4: 00000000001406f0 kobject: 'tx-0' (000000002dcb71bb): auto cleanup kobject_del audit: type=1804 audit(1541565890.039:36): pid=7933 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=ToMToU comm="syz-executor5" name="/root/syzkaller-testdir922456010/syzkaller.fg94wT/26/bus" dev="sda1" ino=16612 res=1 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop2' (00000000bf9f23f4): kobject_uevent_env kobject: 'loop2' (00000000bf9f23f4): fill_kobj_path: path = '/devices/virtual/block/loop2' DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'tx-0' (000000002dcb71bb): calling ktype release DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 kobject: 'tx-0': free name kobject: 'queues' (000000004875daaf): kobject_cleanup, parent (null)