Hello, syzbot found the following issue on: HEAD commit: f9be84db09d2 net: bonding: bond_alb: Remove the dependency.. git tree: net-next console output: https://syzkaller.appspot.com/x/log.txt?x=12755626300000 kernel config: https://syzkaller.appspot.com/x/.config?x=8075b2614f3db143 dashboard link: https://syzkaller.appspot.com/bug?extid=a1eb62c681423ee5c0d7 compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.1 syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1241d9d6300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=168e66e9300000 The issue was bisected to: commit 65038428b2c6c5be79d3f78a6b79c0cdc3a58a41 Author: Pablo Neira Ayuso <pablo@xxxxxxxxxxxxx> Date: Tue Mar 17 13:13:46 2020 +0000 netfilter: nf_tables: allow to specify stateful expression in set definition bisection log: https://syzkaller.appspot.com/x/bisect.txt?x=1683f1f1300000 final oops: https://syzkaller.appspot.com/x/report.txt?x=1583f1f1300000 console output: https://syzkaller.appspot.com/x/log.txt?x=1183f1f1300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+a1eb62c681423ee5c0d7@xxxxxxxxxxxxxxxxxxxxxxxxx Fixes: 65038428b2c6 ("netfilter: nf_tables: allow to specify stateful expression in set definition") ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8989 at net/netfilter/nf_conntrack_core.c:610 destroy_conntrack+0x232/0x2c0 net/netfilter/nf_conntrack_core.c:610 Modules linked in: CPU: 0 PID: 8989 Comm: syz-executor188 Not tainted 5.14.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:destroy_conntrack+0x232/0x2c0 net/netfilter/nf_conntrack_core.c:610 Code: da fc ff eb 90 e8 ae 27 19 fa 48 89 ef e8 c6 53 02 00 48 89 ef e8 ee 1c 5f fa 5b 5d 41 5c 41 5d e9 93 27 19 fa e8 8e 27 19 fa <0f> 0b e9 2f fe ff ff e8 82 27 19 fa 4c 8d a5 e8 00 00 00 48 b8 00 RSP: 0018:ffffc90002d7f080 EFLAGS: 00010293 RAX: 0000000000000000 RBX: 00000000ffffffff RCX: 0000000000000000 RDX: ffff88802eeb8000 RSI: ffffffff875c8632 RDI: 0000000000000003 RBP: ffff888147d35400 R08: 0000000000000000 R09: ffff888147d35403 R10: ffffffff875c8460 R11: 0000000000000000 R12: ffff888147d35400 R13: ffffffff8b31b880 R14: 0000000000000000 R15: 0000000000000001 FS: 00007fb18d49a700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f37c403d088 CR3: 00000000182c1000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: nf_conntrack_destroy+0xab/0x230 net/netfilter/core.c:677 nf_conntrack_put include/linux/netfilter/nf_conntrack_common.h:34 [inline] nf_ct_put include/net/netfilter/nf_conntrack.h:176 [inline] nft_ct_tmpl_put_pcpu+0x15e/0x1e0 net/netfilter/nft_ct.c:356 __nft_ct_set_destroy net/netfilter/nft_ct.c:529 [inline] __nft_ct_set_destroy net/netfilter/nft_ct.c:518 [inline] nft_ct_set_init+0x41e/0x750 net/netfilter/nft_ct.c:614 nf_tables_newexpr net/netfilter/nf_tables_api.c:2742 [inline] nft_expr_init+0x145/0x2d0 net/netfilter/nf_tables_api.c:2780 nft_set_elem_expr_alloc+0x27/0x280 net/netfilter/nf_tables_api.c:5284 nf_tables_newset+0x20cb/0x3340 net/netfilter/nf_tables_api.c:4389 nfnetlink_rcv_batch+0x1710/0x25f0 net/netfilter/nfnetlink.c:513 nfnetlink_rcv_skb_batch net/netfilter/nfnetlink.c:634 [inline] nfnetlink_rcv+0x3af/0x420 net/netfilter/nfnetlink.c:652 netlink_unicast_kernel net/netlink/af_netlink.c:1314 [inline] netlink_unicast+0x533/0x7d0 net/netlink/af_netlink.c:1340 netlink_sendmsg+0x86d/0xdb0 net/netlink/af_netlink.c:1929 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2403 ___sys_sendmsg+0xf3/0x170 net/socket.c:2457 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2486 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x4477b9 Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 01 16 00 00 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 73 01 c3 48 c7 c1 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007fb18d49a318 EFLAGS: 00000246 ORIG_RAX: 000000000000002e RAX: ffffffffffffffda RBX: 00000000004d2298 RCX: 00000000004477b9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003 RBP: 00000000004d2290 R08: 0000000000007463 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000246 R12: 00000000004d229c R13: 00007ffe3c4609ef R14: 00007fb18d49a400 R15: 0000000000022000 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@xxxxxxxxxxxxxxxx. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. For information about bisection process see: https://goo.gl/tpsmEJ#bisection syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches
