------------[ cut here ]------------ Trying to vfree() nonexistent vm area (ffffc90007759000) WARNING: CPU: 1 PID: 6708 at mm/vmalloc.c:2641 __vunmap+0x154/0xd30 mm/vmalloc.c:2641 Modules linked in: CPU: 0 PID: 6708 Comm: syz-executor.5 Not tainted 5.18.0-rc6-next-20220516-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__vunmap+0x154/0xd30 mm/vmalloc.c:2641 Code: 85 75 ff ff ff e8 3c ce bf ff 48 c7 c7 40 8d eb 8b e8 30 ee c0 07 e8 2b ce bf ff 48 89 ee 48 c7 c7 80 96 d8 89 e8 72 22 79 07 <0f> 0b 48 83 c4 40 5b 5d 41 5c 41 5d 41 5e 41 5f e9 07 ce bf ff e8 RSP: 0018:ffffc9000669f478 EFLAGS: 00010282 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: ffff888051279d40 RSI: ffffffff81610d48 RDI: fffff52000cd3e81 RBP: ffffc90007759000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff8160a089 R11: 0000000000000000 R12: dffffc0000000000 R13: ffff88802063e7e0 R14: ffffc90007759000 R15: ffffe8ffffc10078 FS: 00007fe0b1808700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00000000201e3000 CR3: 0000000077a01000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __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_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+0x448/0x840 net/key/af_key.c:3676 sock_sendmsg_nosec net/socket.c:714 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:734 ____sys_sendmsg+0x334/0x810 net/socket.c:2492 ___sys_sendmsg+0xf3/0x170 net/socket.c:2546 __sys_sendmmsg+0x195/0x470 net/socket.c:2632 __do_sys_sendmmsg net/socket.c:2661 [inline] __se_sys_sendmmsg net/socket.c:2658 [inline] __x64_sys_sendmmsg+0x99/0x100 net/socket.c:2658 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: 0033:0x7fe0b06890e9 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:00007fe0b1808168 EFLAGS: 00000246 ORIG_RAX: 0000000000000133 RAX: ffffffffffffffda RBX: 00007fe0b079bf60 RCX: 00007fe0b06890e9 RDX: 032bc45944b084a6 RSI: 0000000020000180 RDI: 0000000000000003 RBP: 00007fe0b06e308d R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007fffd8d5fa4f R14: 00007fe0b1808300 R15: 0000000000022000