WARNING: CPU: 0 PID: 11332 at mm/vmalloc.c:2267 __vunmap+0x150/0xb60 mm/vmalloc.c:2267 Modules linked in: CPU: 0 PID: 11332 Comm: syz-executor.4 Not tainted 5.12.0-rc7-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:__vunmap+0x150/0xb60 mm/vmalloc.c:2267 Code: 85 78 ff ff ff e8 f0 60 c6 ff 48 c7 c7 a0 87 08 8c e8 74 08 58 07 e8 df 60 c6 ff 4c 89 e6 48 c7 c7 40 3f 76 89 e8 d9 b7 14 07 <0f> 0b 48 83 c4 38 5b 5d 41 5c 41 5d 41 5e 41 5f e9 bb 60 c6 ff e8 RSP: 0018:ffffc900017bf468 EFLAGS: 00010286 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000 RDX: 0000000000040000 RSI: ffffffff815c4d25 RDI: fffff520002f7e7f RBP: dffffc0000000000 R08: 0000000000000000 R09: 0000000000000000 R10: ffffffff815bdabe R11: 0000000000000000 R12: ffffc900018cd000 R13: ffff88801502b180 R14: ffffc900018e8000 R15: ffffe8ffffc352a0 FS: 0000000000000000(0000) GS:ffff8880b9c00000(0063) knlGS:00000000f5553b40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000080abcf0 CR3: 00000000247cb000 CR4: 00000000001506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __vfree+0x3c/0xd0 mm/vmalloc.c:2333 vfree+0x5a/0x90 mm/vmalloc.c:2364 ipcomp_free_scratches+0xc4/0x160 net/xfrm/xfrm_ipcomp.c:212 ipcomp_free_data net/xfrm/xfrm_ipcomp.c:321 [inline] ipcomp_init_state+0x77c/0xa40 net/xfrm/xfrm_ipcomp.c:373 ipcomp6_init_state+0xc2/0x700 net/ipv6/ipcomp6.c:154 __xfrm_init_state+0x9ca/0x15b0 net/xfrm/xfrm_state.c:2606 xfrm_init_state+0x1a/0x70 net/xfrm/xfrm_state.c:2633 pfkey_msg2xfrm_state net/key/af_key.c:1291 [inline] pfkey_add+0x1a64/0x2cd0 net/key/af_key.c:1508 pfkey_process+0x685/0x7e0 net/key/af_key.c:2841 pfkey_sendmsg+0x42d/0x800 net/key/af_key.c:3680 sock_sendmsg_nosec net/socket.c:654 [inline] sock_sendmsg+0xcf/0x120 net/socket.c:674 ____sys_sendmsg+0x331/0x810 net/socket.c:2350 ___sys_sendmsg+0xf3/0x170 net/socket.c:2404 __sys_sendmmsg+0x297/0x470 net/socket.c:2483 __compat_sys_sendmmsg net/compat.c:361 [inline] __do_compat_sys_sendmmsg net/compat.c:368 [inline] __se_compat_sys_sendmmsg net/compat.c:365 [inline] __ia32_compat_sys_sendmmsg+0x9b/0x100 net/compat.c:365 do_syscall_32_irqs_on arch/x86/entry/common.c:77 [inline] __do_fast_syscall_32+0x56/0x90 arch/x86/entry/common.c:140 do_fast_syscall_32+0x2f/0x70 arch/x86/entry/common.c:165 entry_SYSENTER_compat_after_hwframe+0x4d/0x5c RIP: 0023:0xf7f59549 Code: 03 74 c0 01 10 05 03 74 b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f55535fc EFLAGS: 00000296 ORIG_RAX: 0000000000000159 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 0000000020000180 RDX: 0000000000000393 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000