On Wed, Jan 8, 2020 at 5:04 PM syzbot <syzbot+19df0457b3f8383e02bd@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote: > > Hello, > > syzbot found the following crash on: > > HEAD commit: ae608821 Merge tag 'trace-v5.5-rc5' of git://git.kernel.or.. > git tree: upstream > console output: https://syzkaller.appspot.com/x/log.txt?x=17a8e885e00000 > kernel config: https://syzkaller.appspot.com/x/.config?x=18698c0c240ba616 > dashboard link: https://syzkaller.appspot.com/bug?extid=19df0457b3f8383e02bd > compiler: gcc (GCC) 9.0.0 20181231 (experimental) > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=11ccdf51e00000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=123dd5fee00000 > > IMPORTANT: if you fix the bug, please add the following tag to the commit: > Reported-by: syzbot+19df0457b3f8383e02bd@xxxxxxxxxxxxxxxxxxxxxxxxx #syz dup: general protection fault in hash_ipportnet4_uadt > kasan: CONFIG_KASAN_INLINE enabled > kasan: GPF could be caused by NULL-ptr deref or user memory access > general protection fault: 0000 [#1] PREEMPT SMP KASAN > CPU: 0 PID: 9515 Comm: syz-executor397 Not tainted 5.5.0-rc5-syzkaller #0 > Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS > Google 01/01/2011 > RIP: 0010:hash_ipportip6_uadt+0x226/0xa00 > net/netfilter/ipset/ip_set_hash_ipportip.c:285 > Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 14 07 00 00 4c 89 > ea 45 8b 76 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c > 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d9 > RSP: 0018:ffffc90001d07170 EFLAGS: 00010246 > RAX: dffffc0000000000 RBX: ffffc90001d07320 RCX: 0000000000000000 > RDX: 0000000000000000 RSI: ffffffff867d0153 RDI: ffff888094d55430 > RBP: ffffc90001d072b8 R08: 0000000000000000 R09: 0000000000000000 > R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a6f34c00 > R13: 0000000000000000 R14: 0000000004000000 R15: 0000000000000002 > FS: 0000000001348880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000000020000180 CR3: 00000000a2c54000 CR4: 00000000001406f0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > Call Trace: > ip_set_utest+0x55b/0x890 net/netfilter/ipset/ip_set_core.c:1867 > nfnetlink_rcv_msg+0xcf2/0xfb0 net/netfilter/nfnetlink.c:229 > netlink_rcv_skb+0x177/0x450 net/netlink/af_netlink.c:2477 > nfnetlink_rcv+0x1ba/0x460 net/netfilter/nfnetlink.c:563 > netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline] > netlink_unicast+0x58c/0x7d0 net/netlink/af_netlink.c:1328 > netlink_sendmsg+0x91c/0xea0 net/netlink/af_netlink.c:1917 > sock_sendmsg_nosec net/socket.c:639 [inline] > sock_sendmsg+0xd7/0x130 net/socket.c:659 > ____sys_sendmsg+0x753/0x880 net/socket.c:2330 > ___sys_sendmsg+0x100/0x170 net/socket.c:2384 > __sys_sendmsg+0x105/0x1d0 net/socket.c:2417 > __do_sys_sendmsg net/socket.c:2426 [inline] > __se_sys_sendmsg net/socket.c:2424 [inline] > __x64_sys_sendmsg+0x78/0xb0 net/socket.c:2424 > do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294 > entry_SYSCALL_64_after_hwframe+0x49/0xbe > RIP: 0033:0x441469 > Code: e8 fc ab 02 00 48 83 c4 18 c3 0f 1f 80 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 0f 83 9b 09 fc ff c3 66 2e 0f 1f 84 00 00 00 00 > RSP: 002b:00007ffe390fa778 EFLAGS: 00000246 ORIG_RAX: 000000000000002e > RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 0000000000441469 > RDX: 0000000000000000 RSI: 0000000020000180 RDI: 0000000000000003 > RBP: 00000000000166ea R08: 00000000004002c8 R09: 00000000004002c8 > R10: 0000000000000004 R11: 0000000000000246 R12: 0000000000402290 > R13: 0000000000402320 R14: 0000000000000000 R15: 0000000000000000 > Modules linked in: > ---[ end trace 12a892406cf2adb8 ]--- > RIP: 0010:hash_ipportip6_uadt+0x226/0xa00 > net/netfilter/ipset/ip_set_hash_ipportip.c:285 > Code: 48 89 f8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 14 07 00 00 4c 89 > ea 45 8b 76 04 48 b8 00 00 00 00 00 fc ff df 48 c1 ea 03 <0f> b6 14 02 4c > 89 e8 83 e0 07 83 c0 03 38 d0 7c 08 84 d2 0f 85 d9 > RSP: 0018:ffffc90001d07170 EFLAGS: 00010246 > RAX: dffffc0000000000 RBX: ffffc90001d07320 RCX: 0000000000000000 > RDX: 0000000000000000 RSI: ffffffff867d0153 RDI: ffff888094d55430 > RBP: ffffc90001d072b8 R08: 0000000000000000 R09: 0000000000000000 > R10: ffffed1015d0703c R11: ffff8880ae8381e3 R12: ffff8880a6f34c00 > R13: 0000000000000000 R14: 0000000004000000 R15: 0000000000000002 > FS: 0000000001348880(0000) GS:ffff8880ae800000(0000) knlGS:0000000000000000 > CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 > CR2: 0000000020000180 CR3: 00000000a2c54000 CR4: 00000000001406f0 > DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 > DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 > > > --- > This bug 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 bug report. See: > https://goo.gl/tpsmEJ#status for how to communicate with syzbot. > syzbot can test patches for this bug, for details see: > https://goo.gl/tpsmEJ#testing-patches > > -- > You received this message because you are subscribed to the Google Groups "syzkaller-bugs" group. > To unsubscribe from this group and stop receiving emails from it, send an email to syzkaller-bugs+unsubscribe@xxxxxxxxxxxxxxxx. > To view this discussion on the web visit https://groups.google.com/d/msgid/syzkaller-bugs/00000000000002902c059ba30b4b%40google.com.
