------------[ cut here ]------------
Trying to vfree() nonexistent vm area (ffffc90003271000)
WARNING: CPU: 1 PID: 10075 at mm/vmalloc.c:2656 __vunmap+0x154/0xe10 mm/vmalloc.c:2656
Modules linked in:
CPU: 1 PID: 10075 Comm: syz-executor.0 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+0x154/0xe10 mm/vmalloc.c:2656
Code: 85 75 ff ff ff e8 6c 71 c0 ff 48 c7 c7 60 da ea 8b e8 a0 96 a7 07 e8 5b 71 c0 ff 48 89 ee 48 c7 c7 c0 11 d8 89 e8 c8 49 60 07 <0f> 0b 48 83 c4 48 5b 5d 41 5c 41 5d 41 5e 41 5f e9 37 71 c0 ff e8
RSP: 0018:ffffc900033ef470 EFLAGS: 00010286
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88801c761d40 RSI: ffffffff81602878 RDI: fffff5200067de80
RBP: ffffc90003271000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815fd23e R11: 0000000000000000 R12: dffffc0000000000
R13: ffff888020849780 R14: ffffc90003358000 R15: ffffe8ffffc38358
FS:  00007f01ffd80700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe7eb8e2faf CR3: 0000000022f55000 CR4: 00000000003506e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
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_init_state+0x1a/0x70 net/xfrm/xfrm_state.c:2694
 pfkey_msg2xfrm_state net/key/af_key.c:1287 [inline]
 pfkey_add+0x1a6c/0x2ce0 net/key/af_key.c:1504
 pfkey_process+0x685/0x7e0 net/key/af_key.c:2837
 pfkey_sendmsg+0x43c/0x830 net/key/af_key.c:3676
 sock_sendmsg_nosec net/socket.c:705 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:725
 ____sys_sendmsg+0x331/0x810 net/socket.c:2413
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2467
 __sys_sendmmsg+0x195/0x470 net/socket.c:2553
 __do_sys_sendmmsg net/socket.c:2582 [inline]
 __se_sys_sendmmsg net/socket.c:2579 [inline]
 __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2579
 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: 0033:0x7f01fec89049
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:00007f01ffd80168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133
RAX: ffffffffffffffda RBX: 00007f01fed9bf60 RCX: 00007f01fec89049
RDX: 0000000000000393 RSI: 0000000020000180 RDI: 0000000000000003
RBP: 00007f01fece308d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007ffd1895777f R14: 00007f01ffd80300 R15: 0000000000022000
 </TASK>