kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access kasan: CONFIG_KASAN_INLINE enabled general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 0 PID: 14530 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 RSP: 0018:ffff8801bae6f880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff8801bae6fa60 R08: ffff88019121a2c0 R09: ffffed003b5c5b67 R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801d0c47040 R13: ffff8801bae6f8f8 R14: 1ffff100375cdf13 R15: dffffc0000000000 FS: 00007fdb94cc27a0(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffd55878730 CR3: 00000001d90ca000 CR4: 00000000001426f0 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: 0033:0x7fdb943ca2b0 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:00007ffd558754d8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000927250 RCX: 00007fdb943ca2b0 RDX: 00007ffd55878730 RSI: 0000000000000002 RDI: 0000000000000007 RBP: 0000000000625500 R08: 00007ffd559510b0 R09: 00007ffd55951080 R10: 0000000000000000 R11: 0000000000000246 R12: 00007ffd558755b0 R13: 0000000000000001 R14: 00007ffd55875544 R15: 0000000000927250 Modules linked in: kasan: GPF could be caused by NULL-ptr deref or user memory access kobject: 'loop4' (000000004046ace5): kobject_uevent_env kobject: 'loop4' (000000004046ace5): fill_kobj_path: path = '/devices/virtual/block/loop4' kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#2] PREEMPT SMP KASAN CPU: 1 PID: 16273 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:ffff880189ee7880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff880189ee7a60 R08: ffff8801d706e4c0 R09: ffffed0038b30711 R10: ffffed0038b30711 R11: ffff8801c598388b R12: ffff8801c9fcc5c0 R13: ffff880189ee78f8 R14: 1ffff100313dcf13 R15: dffffc0000000000 FS: 0000000002645940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000707158 CR3: 00000001d2d6c000 CR4: 00000000001426e0 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: 0033:0x411021 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:00007fff282f0a20 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000006 RCX: 0000000000411021 RDX: 0000000000000000 RSI: ffffffff87c9d4fa RDI: 0000000000000005 RBP: 0000000000000000 R08: ffffffff8139bdc9 R09: 00000000fbb39d07 R10: 00007fff282f0950 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 000000000000014c R15: 0000000000000003 Modules linked in: general protection fault: 0000 [#3] PREEMPT SMP KASAN CPU: 0 PID: 16296 Comm: syz-executor1 Tainted: G D 4.20.0-rc1-next-20181107+ #107 kasan: CONFIG_KASAN_INLINE enabled 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:ffff88018a177880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d ---[ end trace ca5bc684149ffe21 ]--- RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff88018a177a60 R08: ffff88018b9b60c0 R09: ffffed003b5c5b67 R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801b8301d00 R13: ffff88018a1778f8 R14: 1ffff1003142ef13 R15: dffffc0000000000 FS: 0000000000b56940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 kasan: GPF could be caused by NULL-ptr deref or user memory access CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000707158 CR3: 00000001bac71000 CR4: 00000000001426f0 Call Trace: RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567 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: 0033:0x411021 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:00007ffd29ed7480 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000411021 RDX: 0000000000000001 RSI: 0000000000730998 RDI: 0000000000000003 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffd29ed73b0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000171 R15: 0000000000000001 Modules linked in: general protection fault: 0000 [#4] PREEMPT SMP KASAN CPU: 1 PID: 16270 Comm: syz-executor2 Tainted: G D 4.20.0-rc1-next-20181107+ #107 sctp_setsockopt_delayed_ack: 4 callbacks suppressed sctp: [Deprecated]: syz-executor0 (pid 16290) Use of struct sctp_assoc_value in delayed_ack socket option. Use struct sctp_sack_info instead 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:ffff88018319f880 EFLAGS: 00010202 kasan: CONFIG_KASAN_INLINE enabled RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff88018319fa60 R08: ffff88018b4ee480 R09: ffffed0038b30711 R10: ffffed0038b30711 R11: ffff8801c598388b R12: ffff8801c842ad00 R13: ffff88018319f8f8 R14: 1ffff10030633f13 R15: dffffc0000000000 kasan: GPF could be caused by NULL-ptr deref or user memory access FS: 0000000001871940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b32e20000 CR3: 00000001d4aa5000 CR4: 00000000001426e0 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: 0033:0x411021 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:00007ffeadbb7a80 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000411021 RDX: 0000001b32e20000 RSI: ffffffff86dea798 RDI: 0000000000000003 RBP: 0000000000000000 R08: ffffffff8139bdc9 R09: 00000000010b2480 R10: 00007ffeadbb79b0 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000163 R15: 0000000000000002 Modules linked in: general protection fault: 0000 [#5] PREEMPT SMP KASAN CPU: 0 PID: 16286 Comm: syz-executor0 Tainted: G D 4.20.0-rc1-next-20181107+ #107 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 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:ffff88018aeaf880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RSP: 0018:ffff8801bae6f880 EFLAGS: 00010202 RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff88018aeafa60 R08: ffff880191876500 R09: ffffed0038b30711 R10: ffffed0038b30711 R11: ffff8801c598388b R12: ffff8801d7a87540 R13: ffff88018aeaf8f8 R14: 1ffff100315d5f13 R15: dffffc0000000000 FS: 00000000021b2940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d CR2: 00007fbc7c676db8 CR3: 00000001ba7bd000 CR4: 00000000001426f0 Call Trace: RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff8801bae6fa60 R08: ffff88019121a2c0 R09: ffffed003b5c5b67 R10: ffffed003b5c5b67 R11: ffff8801dae2db3b R12: ffff8801d0c47040 R13: ffff8801bae6f8f8 R14: 1ffff100375cdf13 R15: dffffc0000000000 locks_remove_file+0x148/0x5c0 fs/locks.c:2607 ---[ end trace ca5bc684149ffe22 ]--- FS: 0000000002645940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 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 __fput+0x2f0/0xa70 fs/file_table.c:271 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 ---[ end trace ca5bc684149ffe23 ]--- RIP: 0010:locks_remove_flock+0x216/0x350 fs/locks.c:2567 RSP: 0018:ffff8801bae6f880 EFLAGS: 00010202 ____fput+0x15/0x20 fs/file_table.c:312 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 task_work_run+0x1e8/0x2a0 kernel/task_work.c:113 CR2: 0000000000625208 CR3: 00000001d2d6c000 CR4: 00000000001426e0 tracehook_notify_resume include/linux/tracehook.h:188 [inline] exit_to_usermode_loop+0x318/0x380 arch/x86/entry/common.c:166 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d 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 RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RSP: 0018:ffff8801bae6f880 EFLAGS: 00010202 RBP: ffff8801bae6fa60 R08: ffff88019121a2c0 R09: ffffed003b5c5b67 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:00007ffdec564880 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000004 RCX: 0000000000411021 RDX: 0000000000000001 RSI: 00000000007314a0 RDI: 0000000000000003