kernel msg: ebtables bug: please report to author: Nentries wrong kernel msg: ebtables bug: please report to author: Nentries wrong BUG: GPF in non-whitelisted uaccess (non-canonical address?) kasan: CONFIG_KASAN_INLINE enabled IPVS: ftp: loaded support on port[0] = 21 kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN CPU: 1 PID: 31848 Comm: syz-executor1 Not tainted 4.20.0-rc1+ #109 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20 arch/x86/lib/copy_user_64.S:180 Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 83 kobject: 'lo' (00000000a6443dd1): kobject_add_internal: parent: 'net', set: 'devices' RSP: 0018:ffff8801d70af398 EFLAGS: 00010206 RAX: 0000000000000000 RBX: 00000000000000be RCX: 00000000000000be RDX: 00000000000000be RSI: 4caaadbf9db04a99 RDI: ffff8801bf63b2b8 RBP: ffff8801d70af3d0 R08: ffffed0037ec766f R09: ffffed0037ec766f R10: ffffed0037ec766e R11: ffff8801bf63b375 R12: 4caaadbf9db04b57 R13: 4caaadbf9db04a99 R14: ffff8801bf63b2b8 R15: ffffffffffffffff FS: 00007f0b59d0f700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000625208 CR3: 00000001b7e87000 CR4: 00000000001406e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'loop5' (00000000bad8892f): kobject_uevent_env DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: copy_from_user include/linux/uaccess.h:147 [inline] uhid_dev_create+0x20c/0xb40 drivers/hid/uhid.c:542 kobject: 'loop5' (00000000bad8892f): fill_kobj_path: path = '/devices/virtual/block/loop5' kernel msg: ebtables bug: please report to author: Nentries wrong uhid_char_write+0xc74/0xef0 drivers/hid/uhid.c:725 kernel msg: ebtables bug: please report to author: Nentries wrong __vfs_write+0x119/0x9f0 fs/read_write.c:485 kobject: 'loop4' (000000000f3fc2e6): kobject_uevent_env kobject: 'loop4' (000000000f3fc2e6): fill_kobj_path: path = '/devices/virtual/block/loop4' kobject: 'lo' (00000000a6443dd1): kobject_uevent_env __kernel_write+0x10c/0x370 fs/read_write.c:506 write_pipe_buf+0x180/0x240 fs/splice.c:797 kobject: 'lo' (00000000a6443dd1): fill_kobj_path: path = '/devices/virtual/net/lo' splice_from_pipe_feed fs/splice.c:503 [inline] __splice_from_pipe+0x38b/0x7c0 fs/splice.c:627 kobject: 'queues' (00000000cdfb81e7): kobject_add_internal: parent: 'lo', set: '' splice_from_pipe+0x1ec/0x340 fs/splice.c:662 kernel msg: ebtables bug: please report to author: Nentries wrong default_file_splice_write+0x3c/0x90 fs/splice.c:809 kernel msg: ebtables bug: please report to author: Nentries wrong do_splice_from fs/splice.c:851 [inline] direct_splice_actor+0x128/0x190 fs/splice.c:1018 splice_direct_to_actor+0x318/0x8f0 fs/splice.c:973 kobject: 'queues' (00000000cdfb81e7): kobject_uevent_env kobject: 'loop2' (00000000314877e3): kobject_uevent_env kobject: 'loop2' (00000000314877e3): fill_kobj_path: path = '/devices/virtual/block/loop2' do_splice_direct+0x2d4/0x420 fs/splice.c:1061 kobject: 'queues' (00000000cdfb81e7): kobject_uevent_env: filter function caused the event to drop! do_sendfile+0x62a/0xe20 fs/read_write.c:1439 kobject: 'rx-0' (0000000095d78570): kobject_add_internal: parent: 'queues', set: 'queues' __do_sys_sendfile64 fs/read_write.c:1494 [inline] __se_sys_sendfile64 fs/read_write.c:1486 [inline] __x64_sys_sendfile64+0x15d/0x250 fs/read_write.c:1486 do_syscall_64+0x1b9/0x820 arch/x86/entry/common.c:290 kobject: 'rx-0' (0000000095d78570): kobject_uevent_env kobject: 'rx-0' (0000000095d78570): fill_kobj_path: path = '/devices/virtual/net/lo/queues/rx-0' 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 kobject: 'tx-0' (0000000002ec5b19): kobject_add_internal: parent: 'queues', set: 'queues' RSP: 002b:00007f0b59d0ec78 EFLAGS: 00000246 ORIG_RAX: 0000000000000028 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000000457569 RDX: 0000000020d83ff8 RSI: 0000000000000004 RDI: 0000000000000003 RBP: 000000000072bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 00008000fffffffe R11: 0000000000000246 R12: 00007f0b59d0f6d4 R13: 00000000004c37cc R14: 00000000004d5958 R15: 00000000ffffffff kobject: 'tx-0' (0000000002ec5b19): kobject_uevent_env Modules linked in: ---[ end trace 05f5a052f649341e ]--- kobject: 'tx-0' (0000000002ec5b19): fill_kobj_path: path = '/devices/virtual/net/lo/queues/tx-0' RIP: 0010:copy_user_enhanced_fast_string+0xe/0x20 arch/x86/lib/copy_user_64.S:180 Code: 89 d1 c1 e9 03 83 e2 07 f3 48 a5 89 d1 f3 a4 31 c0 0f 1f 00 c3 0f 1f 80 00 00 00 00 0f 1f 00 83 fa 40 0f 82 70 ff ff ff 89 d1 a4 31 c0 0f 1f 00 c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 83 IPVS: ftp: loaded support on port[0] = 21 kobject: 'loop0' (00000000340bf24d): kobject_uevent_env kobject: 'rx-0' (00000000a3b2c01d): kobject_cleanup, parent 00000000717c1169 kobject: 'loop0' (00000000340bf24d): fill_kobj_path: path = '/devices/virtual/block/loop0' kobject: 'rx-0' (00000000a3b2c01d): auto cleanup 'remove' event RSP: 0018:ffff8801d70af398 EFLAGS: 00010206 RAX: 0000000000000000 RBX: 00000000000000be RCX: 00000000000000be kobject: 'rx-0' (00000000a3b2c01d): kobject_uevent_env kobject: 'loop5' (00000000bad8892f): kobject_uevent_env kobject: 'rx-0' (00000000a3b2c01d): fill_kobj_path: path = '/devices/virtual/net/syz_tun/queues/rx-0' RDX: 00000000000000be RSI: 4caaadbf9db04a99 RDI: ffff8801bf63b2b8 kobject: 'loop5' (00000000bad8892f): fill_kobj_path: path = '/devices/virtual/block/loop5' RBP: ffff8801d70af3d0 R08: ffffed0037ec766f R09: ffffed0037ec766f kobject: 'rx-0' (00000000a3b2c01d): auto cleanup kobject_del R10: ffffed0037ec766e R11: ffff8801bf63b375 R12: 4caaadbf9db04b57 R13: 4caaadbf9db04a99 R14: ffff8801bf63b2b8 R15: ffffffffffffffff kobject: 'rx-0' (00000000a3b2c01d): calling ktype release FS: 00007f0b59d0f700(0000) GS:ffff8801daf00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001cc6308 CR3: 00000001b7e87000 CR4: 00000000001406e0 kobject: 'rx-0': free name DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 kobject: 'tx-0' (00000000bb9c9857): kobject_cleanup, parent 00000000717c1169 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400