kernel msg: ebtables bug: please report to author: Total nentries is wrong kernel msg: ebtables bug: please report to author: Total nentries is wrong 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: 10441 Comm: syz-executor2 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:ffff8801bfd37880 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb RBP: ffff8801bfd37a60 R08: ffff88018599a5c0 R09: ffffed003b5e5b67 R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801ba587340 R13: ffff8801bfd378f8 R14: 1ffff10037fa6f13 R15: dffffc0000000000 FS: 0000000001cfd940(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000000072c000 CR3: 00000001c8210000 CR4: 00000000001406e0 kobject: 'loop1' (00000000e17844d3): kobject_uevent_env Call Trace: kobject: 'loop1' (00000000e17844d3): fill_kobj_path: path = '/devices/virtual/block/loop1' locks_remove_file+0x148/0x5c0 fs/locks.c:2607 __fput+0x2f0/0xa70 fs/file_table.c:271 kobject: 'loop5' (00000000225209cb): kobject_uevent_env ____fput+0x15/0x20 fs/file_table.c:312 kobject: 'loop5' (00000000225209cb): fill_kobj_path: path = '/devices/virtual/block/loop5' 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:00007ffee72fc4f0 EFLAGS: 00000293 ORIG_RAX: 0000000000000003 RAX: 0000000000000000 RBX: 0000000000000005 RCX: 0000000000411021 RDX: 0000000000000000 RSI: 00000000007313e8 RDI: 0000000000000004 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 00007ffee72fc420 R11: 0000000000000293 R12: 0000000000000000 R13: 0000000000000001 R14: 0000000000000299 R15: 0000000000000002 Modules linked in: kobject: 'loop3' (000000002c4b8df4): kobject_uevent_env kobject: 'loop3' (000000002c4b8df4): fill_kobj_path: path = '/devices/virtual/block/loop3' kobject: 'loop0' (00000000cc6ffac8): kobject_uevent_env ---[ end trace 93d4fb1f65f2faab ]--- kobject: 'loop0' (00000000cc6ffac8): fill_kobj_path: path = '/devices/virtual/block/loop0' 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 kobject: 'loop1' (00000000e17844d3): kobject_uevent_env kernel msg: ebtables bug: please report to author: Total nentries is wrong kobject: 'loop1' (00000000e17844d3): fill_kobj_path: path = '/devices/virtual/block/loop1' kobject: 'loop5' (00000000225209cb): kobject_uevent_env kobject: 'loop5' (00000000225209cb): fill_kobj_path: path = '/devices/virtual/block/loop5' RSP: 0018:ffff8801bfd37880 EFLAGS: 00010202 kobject: 'loop4' (00000000beadb16f): kobject_uevent_env RAX: dffffc0000000000 RBX: 0000000041b58ab3 RCX: ffffffff81ed555d kobject: 'loop4' (00000000beadb16f): fill_kobj_path: path = '/devices/virtual/block/loop4' RDX: 000000000836b157 RSI: ffffffff81ed5c71 RDI: 0000000041b58abb kernel msg: ebtables bug: please report to author: Total nentries is wrong RBP: ffff8801bfd37a60 R08: ffff88018599a5c0 R09: ffffed003b5e5b67 R10: ffffed003b5e5b67 R11: ffff8801daf2db3b R12: ffff8801ba587340 kobject: 'loop0' (00000000cc6ffac8): kobject_uevent_env R13: ffff8801bfd378f8 R14: 1ffff10037fa6f13 R15: dffffc0000000000 kobject: 'loop0' (00000000cc6ffac8): fill_kobj_path: path = '/devices/virtual/block/loop0' FS: 0000000001cfd940(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000002602978 CR3: 00000001c8210000 CR4: 00000000001406f0 kobject: 'loop0' (00000000cc6ffac8): kobject_uevent_env