8021q: adding VLAN 0 to HW filter on device team0 8021q: adding VLAN 0 to HW filter on device team0 8021q: adding VLAN 0 to HW filter on device team0 bpfilter: read fail -512 kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] SMP KASAN CPU: 0 PID: 7060 Comm: syz-executor4 Not tainted 4.17.0+ #92 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:file_write_hint include/linux/fs.h:1934 [inline] RIP: 0010:init_sync_kiocb include/linux/fs.h:1953 [inline] RIP: 0010:new_sync_write fs/read_write.c:470 [inline] RIP: 0010:__vfs_write+0x49f/0x9d0 fs/read_write.c:487 Code: 48 c1 ea 03 80 3c 02 00 0f 85 17 05 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 20 49 8d bd c8 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 59 03 00 00 45 8b ad c8 00 00 RSP: 0018:ffff8801afa47878 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801cd881800 RCX: ffffffff81c0dc3a RDX: 0000000000000019 RSI: ffffffff81c0dc44 RDI: 00000000000000c8 RBP: ffff8801afa479f0 R08: ffff8801a9984580 R09: fffffbfff130c749 R10: ffff8801afa47a38 R11: ffffffff89863a4b R12: ffff8801afa479c8 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801afa47ab0 FS: 00007f758cf49700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcc6845efc CR3: 00000001c653f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __kernel_write+0x10c/0x380 fs/read_write.c:506 __bpfilter_process_sockopt+0x1d8/0x35b net/bpfilter/bpfilter_kern.c:66 bpfilter_mbox_request+0x4d/0xb0 net/ipv4/bpfilter/sockopt.c:25 bpfilter_ip_set_sockopt+0x33/0x40 net/ipv4/bpfilter/sockopt.c:31 ip_setsockopt+0x124/0x140 net/ipv4/ip_sockglue.c:1250 udp_setsockopt+0x62/0xa0 net/ipv4/udp.c:2502 ipv6_setsockopt+0x149/0x170 net/ipv6/ipv6_sockglue.c:917 udpv6_setsockopt+0x62/0xa0 net/ipv6/udp.c:1472 sock_common_setsockopt+0x9a/0xe0 net/core/sock.c:3053 __sys_setsockopt+0x1bd/0x390 net/socket.c:1935 __do_sys_setsockopt net/socket.c:1946 [inline] __se_sys_setsockopt net/socket.c:1943 [inline] __x64_sys_setsockopt+0xbe/0x150 net/socket.c:1943 do_syscall_64+0x1b1/0x800 arch/x86/entry/common.c:287 entry_SYSCALL_64_after_hwframe+0x49/0xbe RIP: 0033:0x4559f9 Code: 1d ba 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 eb b9 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f758cf48c68 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f758cf496d4 RCX: 00000000004559f9 RDX: 0000000000000040 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 000000000072bea0 R08: 0000000000000004 R09: 0000000000000000 R10: 0000000020000080 R11: 0000000000000246 R12: 00000000ffffffff R13: 00000000004c1377 R14: 00000000004d1360 R15: 0000000000000000 Modules linked in: Dumping ftrace buffer: (ftrace buffer empty) ---[ end trace ba806e224521ad96 ]--- RIP: 0010:file_write_hint include/linux/fs.h:1934 [inline] RIP: 0010:init_sync_kiocb include/linux/fs.h:1953 [inline] RIP: 0010:new_sync_write fs/read_write.c:470 [inline] RIP: 0010:__vfs_write+0x49f/0x9d0 fs/read_write.c:487 Code: 48 c1 ea 03 80 3c 02 00 0f 85 17 05 00 00 48 b8 00 00 00 00 00 fc ff df 4c 8b 6b 20 49 8d bd c8 00 00 00 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 59 03 00 00 45 8b ad c8 00 00 RSP: 0018:ffff8801afa47878 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8801cd881800 RCX: ffffffff81c0dc3a RDX: 0000000000000019 RSI: ffffffff81c0dc44 RDI: 00000000000000c8 RBP: ffff8801afa479f0 R08: ffff8801a9984580 R09: fffffbfff130c749 R10: ffff8801afa47a38 R11: ffffffff89863a4b R12: ffff8801afa479c8 R13: 0000000000000000 R14: 0000000000000000 R15: ffff8801afa47ab0 FS: 00007f758cf49700(0000) GS:ffff8801dae00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007ffcc6845efc CR3: 00000001c653f000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400