------------[ cut here ]------------
Trying to vfree() bad address (000000000000000b)
WARNING: CPU: 1 PID: 13032 at mm/vmalloc.c:2650 __vunmap+0xba6/0xe10 mm/vmalloc.c:2650
Modules linked in:
CPU: 1 PID: 13032 Comm: syz-executor.4 Not tainted 5.17.0-rc6-next-20220303-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__vunmap+0xba6/0xe10 mm/vmalloc.c:2650
Code: c0 31 d2 31 f6 48 c7 c7 ff ff ff ff e8 c3 35 ff ff e9 30 ff ff ff e8 09 67 c0 ff 48 89 ee 48 c7 c7 60 11 d8 89 e8 76 3f 60 07 <0f> 0b e9 a9 f5 ff ff 49 8d 47 20 c7 44 24 2c 00 00 00 00 48 c7 44
RSP: 0000:ffffc900155372c8 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 000000000000000b RCX: 0000000000000000
RDX: ffff888030d40000 RSI: ffffffff81602878 RDI: fffff52002aa6e4b
RBP: 000000000000000b R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815fd23e R11: 0000000000000000 R12: 0000000000000003
R13: fffffbfff1b6b558 R14: 0000607f4600f930 R15: ffffe8ffffc0f930
FS:  00007f7755ed8700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f974ff6c058 CR3: 000000001a557000 CR4: 00000000003506f0
Call Trace:
 <TASK>
 __vfree+0x3c/0xd0 mm/vmalloc.c:2725
 vfree+0x5a/0x90 mm/vmalloc.c:2756
 ipcomp_free_scratches+0xc4/0x160 net/xfrm/xfrm_ipcomp.c:203
 ipcomp_free_data net/xfrm/xfrm_ipcomp.c:312 [inline]
 ipcomp_init_state+0x74a/0xa60 net/xfrm/xfrm_ipcomp.c:364
 ipcomp6_init_state+0xc2/0x700 net/ipv6/ipcomp6.c:154
 __xfrm_init_state+0x995/0x15c0 net/xfrm/xfrm_state.c:2667
 xfrm_state_construct net/xfrm/xfrm_user.c:641 [inline]
 xfrm_add_sa+0x1f67/0x3680 net/xfrm/xfrm_user.c:698
 xfrm_user_rcv_msg+0x437/0xa30 net/xfrm/xfrm_user.c:2945
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 xfrm_netlink_rcv+0x6b/0x90 net/xfrm/xfrm_user.c:2967
 netlink_unicast_kernel net/netlink/af_netlink.c:1317 [inline]
 netlink_unicast+0x539/0x7e0 net/netlink/af_netlink.c:1343
 netlink_sendmsg+0x904/0xe00 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:725
 ____sys_sendmsg+0x6e8/0x810 net/socket.c:2413
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
 __sys_sendmsg+0xe5/0x1b0 net/socket.c:2496
 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: 0033:0x7f7754c89049
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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f7755ed8168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7754d9bf60 RCX: 00007f7754c89049
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007f7754ce308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff85c35a3f R14: 00007f7755ed8300 R15: 0000000000022000
 </TASK>