general protection fault, probably for non-canonical address 0xdffffc0000000003: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000018-0x000000000000001f]
CPU: 0 PID: 3723 Comm: syz-executor.4 Not tainted 5.7.0-rc6-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:selinux_socket_recvmsg+0x1e/0x40 security/selinux/hooks.c:4841
Code: e8 77 f9 1e fe 48 89 ef 5d eb b1 90 53 48 89 fb e8 67 f9 1e fe 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 0f 48 8b 7b 18 be 02 00 00 00 5b e9 7d fc ff ff e8
RSP: 0018:ffffc90007d0fa58 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90011c07000
RDX: 0000000000000003 RSI: ffffffff83543bb9 RDI: 0000000000000018
RBP: dffffc0000000000 R08: ffff88809e4be5c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffc90007d0fd78 R14: 000000000000004e R15: 0000000000000000
FS:  00007f89ab7c4700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000043e260 CR3: 0000000087d40000 CR4: 00000000001406f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 security_socket_recvmsg+0x78/0xc0 security/security.c:2070
 sock_recvmsg+0x47/0x110 net/socket.c:902
 mptcp_recvmsg+0xb3b/0xd90 net/mptcp/protocol.c:891
 inet_recvmsg+0x121/0x5d0 net/ipv4/af_inet.c:838
 sock_recvmsg_nosec net/socket.c:886 [inline]
 sock_recvmsg net/socket.c:904 [inline]
 sock_recvmsg+0xca/0x110 net/socket.c:900
 __sys_recvfrom+0x1c5/0x2f0 net/socket.c:2057
 __do_sys_recvfrom net/socket.c:2075 [inline]
 __se_sys_recvfrom net/socket.c:2071 [inline]
 __x64_sys_recvfrom+0xdd/0x1b0 net/socket.c:2071
 do_syscall_64+0xf6/0x7d0 arch/x86/entry/common.c:295
 entry_SYSCALL_64_after_hwframe+0x49/0xb3
RIP: 0033:0x45ca29
Code: 0d b7 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007f89ab7c3c78 EFLAGS: 00000246 ORIG_RAX: 000000000000002d
RAX: ffffffffffffffda RBX: 00000000004fb380 RCX: 000000000045ca29
RDX: 000000000000004e RSI: 0000000020000000 RDI: 0000000000000003
RBP: 000000000078bf00 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000895 R14: 00000000004cb68c R15: 00007f89ab7c46d4
Modules linked in:
---[ end trace 33fe96ed4df212d7 ]---
RIP: 0010:selinux_socket_recvmsg+0x1e/0x40 security/selinux/hooks.c:4841
Code: e8 77 f9 1e fe 48 89 ef 5d eb b1 90 53 48 89 fb e8 67 f9 1e fe 48 8d 7b 18 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <80> 3c 02 00 75 0f 48 8b 7b 18 be 02 00 00 00 5b e9 7d fc ff ff e8
RSP: 0018:ffffc90007d0fa58 EFLAGS: 00010206
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90011c07000
RDX: 0000000000000003 RSI: ffffffff83543bb9 RDI: 0000000000000018
RBP: dffffc0000000000 R08: ffff88809e4be5c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: dffffc0000000000
R13: ffffc90007d0fd78 R14: 000000000000004e R15: 0000000000000000
FS:  00007f89ab7c4700(0000) GS:ffff8880ae700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f780b512020 CR3: 0000000087d40000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400