syzbot


WARNING: kmalloc bug in hash_netnet_create

Status: closed as dup on 2021/09/15 05:09
Subsystems: netfilter
[Documentation on labels]
Reported-by: syzbot+239ed9ea6f8b1d834627@syzkaller.appspotmail.com
First crash: 961d, last: 938d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING: kmalloc bug in hash_net_create netfilter C done 283 938d 965d

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 1 PID: 25754 at mm/util.c:597 kvmalloc_node+0x111/0x120 mm/util.c:597
Modules linked in:
CPU: 1 PID: 25754 Comm: syz-executor.0 Not tainted 5.15.0-rc2-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 8d 18 0d 00 49 89 c5 e9 69 ff ff ff e8 30 8c d0 ff 41 89 ed 41 81 cd 00 20 01 00 eb 95 e8 1f 8c d0 ff <0f> 0b e9 4c ff ff ff 0f 1f 84 00 00 00 00 00 55 48 89 fd 53 e8 06
RSP: 0018:ffffc9000b2ff288 EFLAGS: 00010212
RAX: 0000000000000492 RBX: ffffc9000b2ff3a0 RCX: ffffc90002db1000
RDX: 0000000000040000 RSI: ffffffff81a57f71 RDI: 0000000000000003
RBP: 0000000000400dc0 R08: 000000007fffffff R09: ffff8880b9d32a0b
R10: ffffffff81a57f2e R11: 000000000000001f R12: 0000000400000018
R13: 0000000000000000 R14: 00000000ffffffff R15: ffff888071e64000
FS:  00007f5679ab1700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000555556489708 CR3: 000000007f69a000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 hash_netnet_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
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2409
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2492
 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: 0033:0x7f567c53a8d9
Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 bc ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f5679ab1188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f567c63ef60 RCX: 00007f567c53a8d9
RDX: 0000000000000000 RSI: 0000000020000040 RDI: 0000000000000004
RBP: 00007f567c594cb4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff6c4bc08f R14: 00007f5679ab1300 R15: 0000000000022000

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/30 21:28 net-next-old 69508d43334e 1d849ab4 .config console log report info ci-upstream-net-kasan-gce WARNING: kmalloc bug in hash_netnet_create
2021/09/07 09:35 net-next-old 27151f177827 6ca60148 .config console log report info ci-upstream-net-kasan-gce WARNING: kmalloc bug in hash_netnet_create
* Struck through repros no longer work on HEAD.