------------[ cut here ]------------ Trying to vfree() nonexistent vm area (ffffc9000399d000) WARNING: CPU: 1 PID: 20885 at mm/vmalloc.c:2612 __vunmap+0x150/0xb70 mm/vmalloc.c:2612 Modules linked in: CPU: 1 PID: 20885 Comm: syz-executor.2 Not tainted 5.16.0-rc3-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 20 47 c4 ff 48 c7 c7 e0 33 ca 8b e8 64 a8 93 07 e8 0f 47 c4 ff 4c 89 e6 48 c7 c7 80 3b b7 89 e8 af 3c 4d 07 <0f> 0b 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f e9 eb 46 c4 ff e8 RSP: 0018:ffffc90002a7f480 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815f1d88 RDI: fffff5200054fe82 RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815ebb2e R11: 0000000000000000 R12: ffffc9000399d000 R13: ffff88807f95eb40 R14: ffffc9000399d000 R15: ffffe8ffffc61208 FS: 00007fb27b72e700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f063e9800a3 CR3: 0000000077319000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __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:2648 xfrm_init_state+0x1a/0x70 net/xfrm/xfrm_state.c:2675 pfkey_msg2xfrm_state net/key/af_key.c:1287 [inline] pfkey_add+0x1a69/0x2ce0 net/key/af_key.c:1504 pfkey_process+0x685/0x7e0 net/key/af_key.c:2837 pfkey_sendmsg+0x43a/0x820 net/key/af_key.c:3676 sock_sendmsg_nosec net/socket.c:704 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:724 ____sys_sendmsg+0x331/0x810 net/socket.c:2409 ___sys_sendmsg+0xf3/0x170 net/socket.c:2463 __sys_sendmmsg+0x195/0x470 net/socket.c:2549 __do_sys_sendmmsg net/socket.c:2578 [inline] __se_sys_sendmmsg net/socket.c:2575 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2575 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: 0033:0x7fb27c7d9ae9 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:00007fb27b72e188 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fb27c8ed028 RCX: 00007fb27c7d9ae9 RDX: 000000000400008a RSI: 0000000020000180 RDI: 0000000000000003 RBP: 00007fb27c833ff7 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffc0c9d341f R14: 00007fb27b72e300 R15: 0000000000022000