syzbot


WARNING: kmalloc bug in hash_netiface_create

Status: closed as dup on 2021/09/15 05:10
Subsystems: netfilter
[Documentation on labels]
Reported-by: syzbot+f0cf917aa0586134c075@syzkaller.appspotmail.com
First crash: 972d, last: 963d
Duplicate of
Title Repro Cause bisect Fix bisect Count Last Reported
WARNING: kmalloc bug in hash_net_create netfilter C done 283 945d 972d

Sample crash report:
------------[ cut here ]------------
WARNING: CPU: 0 PID: 29682 at mm/util.c:597 kvmalloc_node+0x111/0x120 mm/util.c:597
Modules linked in:
CPU: 1 PID: 29682 Comm: syz-executor.4 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 4d 17 0d 00 49 89 c5 e9 69 ff ff ff e8 30 3e d1 ff 41 89 ed 41 81 cd 00 20 01 00 eb 95 e8 1f 3e d1 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:ffffc90001a97288 EFLAGS: 00010216
RAX: 0000000000000473 RBX: ffffc90001a973a0 RCX: ffffc900120ef000
RDX: 0000000000040000 RSI: ffffffff81a41371 RDI: 0000000000000003
RBP: 0000000000400dc0 R08: 000000007fffffff R09: 000000000000001c
R10: ffffffff81a4132e R11: 000000000000001f R12: 0000000080000018
R13: 0000000000000000 R14: 00000000ffffffff R15: ffff8880533b6000
FS:  00007fe40ae18700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000970004 CR3: 0000000090cfa000 CR4: 00000000001526e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 hash_netiface_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: 0033:0x4665f9
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:00007fe40ae18188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056bf80 RCX: 00000000004665f9
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000003
RBP: 00000000004bfcc4 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056bf80
R13: 00007ffc52ea6e4f R14: 00007fe40ae18300 R15: 0000000000022000

Crashes (2):
Time Kernel Commit Syzkaller Config Log Report Syz repro C repro VM info Assets (help?) Manager Title
2021/09/04 03:02 upstream 7cca308cfdc0 d236a457 .config console log report info ci-upstream-kasan-gce-selinux-root WARNING: kmalloc bug in hash_netiface_create
2021/09/13 01:38 net-old f11ee2ad25b2 5ae8508a .config console log report info ci-upstream-net-this-kasan-gce WARNING: kmalloc bug in hash_netiface_create
* Struck through repros no longer work on HEAD.