Trying to vfree() nonexistent vm area (ffffc90003faf000)
WARNING: CPU: 0 PID: 6056 at mm/vmalloc.c:2612 __vunmap+0x150/0xb70 mm/vmalloc.c:2612
Modules linked in:
CPU: 0 PID: 6056 Comm: syz-executor.1 Not tainted 5.16.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__vunmap+0x150/0xb70 mm/vmalloc.c:2612
Code: 85 78 ff ff ff e8 c0 a1 c3 ff 48 c7 c7 80 5e ca 8b e8 04 b1 97 07 e8 af a1 c3 ff 4c 89 e6 48 c7 c7 20 69 b7 89 e8 0d 19 51 07 <0f> 0b 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f e9 8b a1 c3 ff e8
RSP: 0018:ffffc90002c6f2d8 EFLAGS: 00010286

RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88807aadba00 RSI: ffffffff815eea08 RDI: fffff5200058de4d
RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000
R10: ffffffff815e87ae R11: 0000000000000000 R12: ffffc90003faf000
R13: ffff888074716600 R14: ffffc90004030000 R15: ffffe8ffffc7e9d8
FS:  00007ff7769ca700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000200c50c0 CR3: 0000000076dc3000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __vfree+0x3c/0xd0 mm/vmalloc.c:2680
 vfree+0x5a/0x90 mm/vmalloc.c:2711
 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:2670
 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:2941
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2494
 xfrm_netlink_rcv+0x6b/0x90 net/xfrm/xfrm_user.c:2963
 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: 0033:0x7ff7780b7fe9
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:00007ff7769ca168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007ff7781cb1d0 RCX: 00007ff7780b7fe9
RDX: 0000000000000000 RSI: 0000000020000140 RDI: 0000000000000003
RBP: 00007ff77811208d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fffd8989a8f R14: 00007ff7769ca300 R15: 0000000000022000
 </TASK>