Trying to vfree() nonexistent vm area (ffffc90003b99000)
WARNING: CPU: 1 PID: 32183 at mm/vmalloc.c:2641 __vunmap+0x154/0xd30 mm/vmalloc.c:2641
Modules linked in:
CPU: 1 PID: 32183 Comm: syz-executor.1 Not tainted 5.19.0-rc4-syzkaller-00044-g1a0e93df1e10 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/18/2022
RIP: 0010:__vunmap+0x154/0xd30 mm/vmalloc.c:2641
Code: 85 75 ff ff ff e8 6c 0c c0 ff 48 c7 c7 80 2e eb 8b e8 a0 54 c0 07 e8 5b 0c c0 ff 48 89 ee 48 c7 c7 20 67 d8 89 e8 0d 3e 78 07 <0f> 0b 48 83 c4 40 5b 5d 41 5c 41 5d 41 5e 41 5f e9 37 0c c0 ff e8
RSP: 0018:ffffc90004f4f2d0 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: ffff88802cbe0240 RSI: ffffffff815ffb18 RDI: fffff520009e9e4c
RBP: ffffc90003b99000 R08: 0000000000000005 R09: 0000000000000000
R10: 0000000080000000 R11: 0000000000000001 R12: dffffc0000000000
R13: ffff888016aa4d80 R14: ffffc90003b89000 R15: ffffe8ffffcbf850
FS:  00007f7a70745700(0000) GS:ffff8880b9a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f87f036c058 CR3: 00000000257ef000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __vfree+0x3c/0xd0 mm/vmalloc.c:2713
 vfree+0x5a/0x90 mm/vmalloc.c:2744
 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
 ipcomp4_init_state+0xc2/0x8e0 net/ipv4/ipcomp.c:135
 __xfrm_init_state+0x995/0x15c0 net/xfrm/xfrm_state.c:2667
 xfrm_state_construct net/xfrm/xfrm_user.c:636 [inline]
 xfrm_add_sa+0x1f57/0x3670 net/xfrm/xfrm_user.c:693
 xfrm_user_rcv_msg+0x437/0xa30 net/xfrm/xfrm_user.c:2924
 netlink_rcv_skb+0x153/0x420 net/netlink/af_netlink.c:2501
 xfrm_netlink_rcv+0x6b/0x90 net/xfrm/xfrm_user.c:2946
 netlink_unicast_kernel net/netlink/af_netlink.c:1319 [inline]
 netlink_unicast+0x543/0x7f0 net/netlink/af_netlink.c:1345
 netlink_sendmsg+0x917/0xe10 net/netlink/af_netlink.c:1921
 sock_sendmsg_nosec net/socket.c:714 [inline]
 sock_sendmsg+0xcf/0x120 net/socket.c:734
 ____sys_sendmsg+0x6eb/0x810 net/socket.c:2492
 ___sys_sendmsg+0xf3/0x170 net/socket.c:2546
 __sys_sendmsg net/socket.c:2575 [inline]
 __do_sys_sendmsg net/socket.c:2584 [inline]
 __se_sys_sendmsg net/socket.c:2582 [inline]
 __x64_sys_sendmsg+0x132/0x220 net/socket.c:2582
 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+0x46/0xb0
RIP: 0033:0x7f7a6f689109
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:00007f7a70745168 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 00007f7a6f79c030 RCX: 00007f7a6f689109
RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000006
RBP: 00007f7a6f6e305d R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff46fd167f R14: 00007f7a70745300 R15: 0000000000022000
 </TASK>