WARNING in warn_bad

Title	Replies (including bot)	Last reply
[PATCH 5.7 000/244] 5.7.10-rc1 review	256 (256)	2020/07/27 17:31
[PATCH net] mptcp: fix DSS map generation on fin retransmission	2 (2)	2020/07/07 22:28
WARNING in warn_bad_map	0 (1)	2020/06/22 09:30

------------[ cut here ]------------ Bad mapping: ssn=2478501 map_seq=0 map_data_len=32748 WARNING: CPU: 0 PID: 20706 at net/mptcp/subflow.c:581 warn_bad_map.isra.0.part.0+0x7d/0xb0 net/mptcp/subflow.c:581 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 20706 Comm: syz-executor.2 Not tainted 5.7.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 Call Trace: __dump_stack lib/dump_stack.c:77 [inline] dump_stack+0x188/0x20d lib/dump_stack.c:118 panic+0x2e3/0x75c kernel/panic.c:221 __warn.cold+0x2f/0x35 kernel/panic.c:582 report_bug+0x27b/0x2f0 lib/bug.c:195 fixup_bug arch/x86/kernel/traps.c:105 [inline] fixup_bug arch/x86/kernel/traps.c:100 [inline] do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:197 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:216 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027 RIP: 0010:warn_bad_map.isra.0.part.0+0x7d/0xb0 net/mptcp/subflow.c:581 Code: 48 c1 ea 03 0f b6 14 02 48 89 d8 83 e0 07 83 c0 03 38 d0 7c 04 84 d2 75 1c 8b 13 44 89 e6 48 c7 c7 20 5c fe 88 e8 4b 2e 6b f9 <0f> 0b 48 83 c4 08 5b 5d 41 5c c3 48 89 df 89 4c 24 04 e8 7c 3f d9 RSP: 0018:ffffc90006f2f420 EFLAGS: 00010286 RAX: 0000000000000000 RBX: ffff88809e4fe43c RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815d5ba7 RDI: fffff52000de5e76 RBP: ffff88809e4fe444 R08: ffff8880850aa580 R09: 0000000000000001 R10: ffffffff8c347a27 R11: fffffbfff1868f44 R12: 000000000025d1a5 R13: ffff88809e4fe400 R14: ffff88809e4fe444 R15: ffff88809e4fe43c warn_bad_map net/mptcp/subflow.c:613 [inline] validate_mapping net/mptcp/subflow.c:613 [inline] get_mapping_status net/mptcp/subflow.c:728 [inline] subflow_check_data_avail net/mptcp/subflow.c:766 [inline] mptcp_subflow_data_available+0x145b/0x1aa0 net/mptcp/subflow.c:862 subflow_data_ready+0x10b/0x170 net/mptcp/subflow.c:903 tcp_data_ready+0xe8/0x230 net/ipv4/tcp_input.c:4776 tcp_data_queue+0x1161/0x4760 net/ipv4/tcp_input.c:4842 tcp_rcv_established+0x905/0x1d90 net/ipv4/tcp_input.c:5735 tcp_v4_do_rcv+0x605/0x8b0 net/ipv4/tcp_ipv4.c:1629 sk_backlog_rcv include/net/sock.h:996 [inline] __release_sock+0x134/0x3a0 net/core/sock.c:2548 release_sock+0x54/0x1b0 net/core/sock.c:3064 mptcp_sendmsg+0x11f9/0x17f0 net/mptcp/protocol.c:872 inet_sendmsg+0x99/0xe0 net/ipv4/af_inet.c:814 sock_sendmsg_nosec net/socket.c:652 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:672 sock_write_iter+0x288/0x3c0 net/socket.c:999 call_write_iter include/linux/fs.h:1917 [inline] do_iter_readv_writev+0x51e/0x790 fs/read_write.c:694 do_iter_write fs/read_write.c:999 [inline] do_iter_write+0x18b/0x600 fs/read_write.c:980 vfs_writev+0x1b3/0x2f0 fs/read_write.c:1072 do_writev+0x27f/0x300 fs/read_write.c:1115 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295 entry_SYSCALL_64_after_hwframe+0x49/0xb3 RIP: 0033:0x45ca59 Code: 0d b7 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 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f5887229c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000014 RAX: ffffffffffffffda RBX: 000000000050e320 RCX: 000000000045ca59 RDX: 0000000000000001 RSI: 0000000020000200 RDI: 0000000000000004 RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff R13: 0000000000000d43 R14: 00000000004cb67f R15: 00007f588722a6d4 Kernel Offset: disabled Rebooting in 86400 seconds..