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Trying to vfree() nonexistent vm area (000000009b44cc4d)
WARNING: CPU: 0 PID: 25828 at mm/vmalloc.c:2268 __vunmap+0x13f/0xa60 mm/vmalloc.c:2267
Modules linked in:
CPU: 0 PID: 25828 Comm: syz-executor.3 Not tainted 5.11.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:__vunmap+0x13f/0xa60 mm/vmalloc.c:2267
Code: 2b e8 75 3c c7 ff eb 05 e8 6e 3c c7 ff 48 c7 c7 40 93 7c 8c e8 62 4a 9a 07 48 c7 c7 a0 f8 ba 89 4c 89 f6 31 c0 e8 11 af 96 ff <0f> 0b 48 83 c4 58 5b 41 5c 41 5d 41 5e 41 5f 5d c3 48 c7 c7 40 93
RSP: 0018:ffffc9000aa47620 EFLAGS: 00010246
RAX: a21d6b71b0f29700 RBX: ffffc9000aa69000 RCX: ffff88803ef69bc0
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 0000000000000000 R08: ffffffff815fb522 R09: ffffed10173860b8
R10: ffffed10173860b8 R11: 0000000000000000 R12: 1ffffffff1b672bd
R13: dffffc0000000000 R14: ffffc9000aa69000 R15: ffff88803fa23480
FS:  00007f8ee8344700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f07fda66000 CR3: 000000003d25c000 CR4: 00000000001506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ipcomp_free_scratches net/xfrm/xfrm_ipcomp.c:212 [inline]
 ipcomp_free_data+0x13f/0x1f0 net/xfrm/xfrm_ipcomp.c:321
 ipcomp_init_state+0x825/0x910 net/xfrm/xfrm_ipcomp.c:373
 ipcomp4_init_state+0xb4/0xa60 net/ipv4/ipcomp.c:134
 __xfrm_init_state+0x71c/0xb60 net/xfrm/xfrm_state.c:2607
 xfrm_state_construct net/xfrm/xfrm_user.c:627 [inline]
 xfrm_add_sa+0x234e/0x3ab0 net/xfrm/xfrm_user.c:684
 xfrm_user_rcv_msg+0x5fd/0x7f0 net/xfrm/xfrm_user.c:2812
 netlink_rcv_skb+0x190/0x3a0 net/netlink/af_netlink.c:2494
 xfrm_netlink_rcv+0x70/0x80 net/xfrm/xfrm_user.c:2824
 netlink_unicast_kernel net/netlink/af_netlink.c:1304 [inline]
 netlink_unicast+0x786/0x940 net/netlink/af_netlink.c:1330
 netlink_sendmsg+0x9ae/0xd50 net/netlink/af_netlink.c:1919
 sock_sendmsg_nosec net/socket.c:652 [inline]
 sock_sendmsg net/socket.c:672 [inline]
 ____sys_sendmsg+0x519/0x800 net/socket.c:2345
 ___sys_sendmsg net/socket.c:2399 [inline]
 __sys_sendmsg+0x2bf/0x370 net/socket.c:2432
 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x465d99
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:00007f8ee8344188 EFLAGS: 00000246 ORIG_RAX: 000000000000002e
RAX: ffffffffffffffda RBX: 000000000056c008 RCX: 0000000000465d99
RDX: 0000000000000000 RSI: 0000000020000100 RDI: 0000000000000003
RBP: 00000000004bcf27 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 000000000056c008
R13: 00007ffdaaeeab9f R14: 00007f8ee8344300 R15: 0000000000022000