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Fri, 03 Sep 2021 17:01:29 -0700 (PDT) Date: Fri, 03 Sep 2021 17:01:29 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <0000000000003166f105cb201ea6@google.com> Subject: [syzbot] WARNING: kmalloc bug in hash_netport_create From: syzbot To: coreteam@netfilter.org, davem@davemloft.net, fw@strlen.de, kadlec@netfilter.org, kuba@kernel.org, linux-kernel@vger.kernel.org, netdev@vger.kernel.org, netfilter-devel@vger.kernel.org, pablo@netfilter.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org Hello, syzbot found the following issue on: HEAD commit: a9c9a6f741cd Merge tag 'scsi-misc' of git://git.kernel.org.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=12a90fb1300000 kernel config: https://syzkaller.appspot.com/x/.config?x=1ac29107aeb2a552 dashboard link: https://syzkaller.appspot.com/bug?extid=3f5904753c2388727c6c 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=14581b33300000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=13579a69300000 IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3f5904753c2388727c6c@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 1 PID: 8430 at mm/util.c:597 kvmalloc_node+0x111/0x120 mm/util.c:597 Modules linked in: CPU: 1 PID: 8430 Comm: syz-executor891 Not tainted 5.14.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:kvmalloc_node+0x111/0x120 mm/util.c:597 Code: 01 00 00 00 4c 89 e7 e8 ed 11 0d 00 49 89 c5 e9 69 ff ff ff e8 90 55 d1 ff 41 89 ed 41 81 cd 00 20 01 00 eb 95 e8 7f 55 d1 ff <0f> 0b e9 4c ff ff ff 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 e8 66 RSP: 0018:ffffc900010a7078 EFLAGS: 00010293 RAX: 0000000000000000 RBX: ffffc900010a7190 RCX: 0000000000000000 RDX: ffff88801d93e300 RSI: ffffffff81a3f651 RDI: 0000000000000003 RBP: 0000000000400dc0 R08: 000000007fffffff R09: 000000000000001f R10: ffffffff81a3f60e R11: 000000000000001f R12: 0000000400000018 R13: 0000000000000000 R14: 00000000ffffffff R15: ffff88803040e000 FS: 0000000002161300(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000080 CR3: 000000003ea95000 CR4: 00000000001506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: hash_netport_create+0x3dd/0x1220 net/netfilter/ipset/ip_set_hash_gen.h:1524 ip_set_create+0x782/0x15a0 net/netfilter/ipset/ip_set_core.c:1100 nfnetlink_rcv_msg+0xbc9/0x13f0 net/netfilter/nfnetlink.c:296 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2504 nfnetlink_rcv+0x1ac/0x420 net/netfilter/nfnetlink.c:654 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 sock_no_sendpage+0xf3/0x130 net/core/sock.c:2980 kernel_sendpage.part.0+0x1a0/0x340 net/socket.c:3504 kernel_sendpage net/socket.c:3501 [inline] sock_sendpage+0xe5/0x140 net/socket.c:1003 pipe_to_sendpage+0x2ad/0x380 fs/splice.c:364 splice_from_pipe_feed fs/splice.c:418 [inline] __splice_from_pipe+0x43e/0x8a0 fs/splice.c:562 splice_from_pipe fs/splice.c:597 [inline] generic_splice_sendpage+0xd4/0x140 fs/splice.c:746 do_splice_from fs/splice.c:767 [inline] do_splice+0xb7e/0x1960 fs/splice.c:1079 __do_splice+0x134/0x250 fs/splice.c:1144 __do_sys_splice fs/splice.c:1350 [inline] __se_sys_splice fs/splice.c:1332 [inline] __x64_sys_splice+0x198/0x250 fs/splice.c:1332 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: 0033:0x43efb9 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffd3f03c028 EFLAGS: 00000246 ORIG_RAX: 0000000000000113 RAX: ffffffffffffffda RBX: 0000000000400488 RCX: 000000000043efb9 RDX: 0000000000000004 RSI: 0000000000000000 RDI: 0000000000000003 RBP: 0000000000402fa0 R08: 0000000100000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000403030 R13: 0000000000000000 R14: 00000000004ac018 R15: 0000000000400488 --- 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@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. syzbot can test patches for this issue, for details see: https://goo.gl/tpsmEJ#testing-patches