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: 8764 Comm: syz-executor778 Not tainted 5.5.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:strlen+0x27/0x60 lib/string.c:527
Code: 00 00 00 55 48 89 e5 41 57 41 56 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df 48 89 fb 0f 1f 80 00 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 0b 80 3b 00 48 8d 5b 01 75 e7 eb 13 89 d9
RSP: 0018:ffffc900020670b8 EFLAGS: 00010207
RAX: 0000000000000042 RBX: 0000000000000214 RCX: ffff888094fb61c0
RDX: 0000000000000000 RSI: ffff8880a019e118 RDI: 0000000000000214
RBP: ffffc900020670d0 R08: ffffffff86adaefd R09: ffffed1014033c23
R10: ffffed1014033c23 R11: 0000000000000000 R12: ffff88809f80b800
R13: ffff8880a019e118 R14: 0000000000000214 R15: dffffc0000000000
FS:  0000000000cc0940(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000300 CR3: 00000000a20be000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ip_set_comment_free+0x54/0xd0 net/netfilter/ipset/ip_set_core.c:402
 ip_set_ext_destroy include/linux/netfilter/ipset/ip_set.h:275 [inline]
 hash_net4_add+0x11cb/0x2c90 net/netfilter/ipset/ip_set_hash_gen.h:766
 hash_net4_uadt+0x72e/0x990 net/netfilter/ipset/ip_set_hash_net.c:195
 call_ad+0x10a/0x5b0 net/netfilter/ipset/ip_set_core.c:1716
 ip_set_ad+0x6a9/0x860 net/netfilter/ipset/ip_set_core.c:1804
 ip_set_uadd+0x37/0x50 net/netfilter/ipset/ip_set_core.c:1829
 nfnetlink_rcv_msg+0x9ae/0xcd0 net/netfilter/nfnetlink.c:229
 netlink_rcv_skb+0x19e/0x3e0 net/netlink/af_netlink.c:2477
 nfnetlink_rcv+0x1e0/0x1e50 net/netfilter/nfnetlink.c:563
 netlink_unicast_kernel net/netlink/af_netlink.c:1302 [inline]
 netlink_unicast+0x767/0x920 net/netlink/af_netlink.c:1328
 netlink_sendmsg+0xa2c/0xd50 net/netlink/af_netlink.c:1917
 sock_sendmsg_nosec net/socket.c:639 [inline]
 sock_sendmsg net/socket.c:659 [inline]
 ____sys_sendmsg+0x4f7/0x7f0 net/socket.c:2330
 ___sys_sendmsg net/socket.c:2384 [inline]
 __sys_sendmsg+0x1ed/0x290 net/socket.c:2417
 __do_sys_sendmsg net/socket.c:2426 [inline]
 __se_sys_sendmsg net/socket.c:2424 [inline]
 __x64_sys_sendmsg+0x7f/0x90 net/socket.c:2424
 do_syscall_64+0xf7/0x1c0 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x4429a9
Code: e8 ac e8 ff ff 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 eb 08 fc ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007ffe73499dd8 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00000000004429a9
RDX: 0000000000000000 RSI: 0000000020000d00 RDI: 0000000000000004
RBP: 0000000000000000 R08: 00000000004037b0 R09: 00000000004037b0
R10: 00000000004037b0 R11: 0000000000000246 R12: 0000000000403720
R13: 00000000004037b0 R14: 0000000000000000 R15: 0000000000000000
Modules linked in:
---[ end trace 001cd1d707cc96c7 ]---
RIP: 0010:strlen+0x27/0x60 lib/string.c:527
Code: 00 00 00 55 48 89 e5 41 57 41 56 53 49 89 fe 49 bf 00 00 00 00 00 fc ff df 48 89 fb 0f 1f 80 00 00 00 00 48 89 d8 48 c1 e8 03 <42> 0f b6 04 38 84 c0 75 0b 80 3b 00 48 8d 5b 01 75 e7 eb 13 89 d9
RSP: 0018:ffffc900020670b8 EFLAGS: 00010207
RAX: 0000000000000042 RBX: 0000000000000214 RCX: ffff888094fb61c0
RDX: 0000000000000000 RSI: ffff8880a019e118 RDI: 0000000000000214
RBP: ffffc900020670d0 R08: ffffffff86adaefd R09: ffffed1014033c23
R10: ffffed1014033c23 R11: 0000000000000000 R12: ffff88809f80b800
R13: ffff8880a019e118 R14: 0000000000000214 R15: dffffc0000000000
FS:  0000000000cc0940(0000) GS:ffff8880aec00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000020000300 CR3: 00000000a20be000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400