------------[ cut here ]------------
AppArmor WARN aa_sock_msg_perm: ((!sock)): 
WARNING: CPU: 0 PID: 2501 at security/apparmor/lsm.c:933 aa_sock_msg_perm.isra.0+0xd1/0x160 security/apparmor/lsm.c:933
Kernel panic - not syncing: panic_on_warn set ...
CPU: 0 PID: 2501 Comm: syz-executor.0 Not tainted 5.7.0-rc4-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x188/0x20d lib/dump_stack.c:118
 panic+0x2e3/0x75c kernel/panic.c:221
 __warn.cold+0x2f/0x35 kernel/panic.c:582
 report_bug+0x27b/0x2f0 lib/bug.c:195
 fixup_bug arch/x86/kernel/traps.c:175 [inline]
 fixup_bug arch/x86/kernel/traps.c:170 [inline]
 do_error_trap+0x12b/0x220 arch/x86/kernel/traps.c:267
 do_invalid_op+0x32/0x40 arch/x86/kernel/traps.c:286
 invalid_op+0x23/0x30 arch/x86/entry/entry_64.S:1027
RIP: 0010:aa_sock_msg_perm.isra.0+0xd1/0x160 security/apparmor/lsm.c:933
Code: 89 ee 4c 89 e7 5b 5d 41 5c 41 5d 41 5e e9 d7 4d 03 00 e8 32 f6 0d fe 48 c7 c6 a0 ed 6c 88 48 c7 c7 e0 d7 6c 88 e8 07 31 df fd <0f> 0b e9 4a ff ff ff e8 13 f6 0d fe 48 c7 c6 a0 ed 6c 88 48 c7 c7
RSP: 0018:ffffc90016fdfa28 EFLAGS: 00010282
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 0000000000000000
RDX: 000000000000677b RSI: ffffffff815ce181 RDI: fffff52002dfbf37
RBP: ffffc90016fdfd68 R08: ffff88803d3461c0 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: ffffffff886cd7a0
R13: 0000000000000004 R14: 0000000000000094 R15: 0000000080010021
 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
 __compat_sys_recvfrom net/compat.c:701 [inline]
 __do_compat_sys_recvfrom net/compat.c:714 [inline]
 __se_compat_sys_recvfrom net/compat.c:710 [inline]
 __ia32_compat_sys_recvfrom+0xe1/0x1b0 net/compat.c:710
 do_syscall_32_irqs_on arch/x86/entry/common.c:337 [inline]
 do_fast_syscall_32+0x270/0xe90 arch/x86/entry/common.c:396
 entry_SYSENTER_compat+0x70/0x7f arch/x86/entry/entry_64_compat.S:139
Kernel Offset: disabled
Rebooting in 86400 seconds..