general protection fault, probably for non-canonical address 0xdffffc0000000000: 0000 [#1] PREEMPT SMP KASAN
KASAN: null-ptr-deref in range [0x0000000000000000-0x0000000000000007]
CPU: 1 PID: 28334 Comm: syz-executor.1 Not tainted 5.6.0-rc2-next-20200217-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:l2cap_sock_getsockopt+0x7d3/0x1200 net/bluetooth/l2cap_sock.c:613
Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 a0 09 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 1f 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 75 09 00 00 48 8b 3b e8 cb be f6 ff be 67 02 00
RSP: 0018:ffffc900055e7d20 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900045e9000
RDX: 0000000000000000 RSI: ffffffff87253f44 RDI: 0000000000000001
RBP: ffffc900055e7e00 R08: ffff888053934600 R09: fffffbfff16a3f80
R10: fffffbfff16a3f7f R11: ffffffff8b51fbff R12: 0000000000000000
R13: 1ffff92000abcfa7 R14: ffff888090ae9000 R15: ffff888052e04000
FS:  00007efedae18700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30e23000 CR3: 000000009f9cf000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __sys_getsockopt+0x16d/0x310 net/socket.c:2175
 __do_sys_getsockopt net/socket.c:2190 [inline]
 __se_sys_getsockopt net/socket.c:2187 [inline]
 __x64_sys_getsockopt+0xbe/0x150 net/socket.c:2187
 do_syscall_64+0xfa/0x790 arch/x86/entry/common.c:294
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x45c6c9
Code: ad b6 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 7b b6 fb ff c3 66 2e 0f 1f 84 00 00 00 00
RSP: 002b:00007efedae17c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000037
RAX: ffffffffffffffda RBX: 00007efedae186d4 RCX: 000000000045c6c9
RDX: 000000000000000e RSI: 0000000000000112 RDI: 0000000000000007
RBP: 000000000076bf20 R08: 0000000020000140 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 00000000ffffffff
R13: 0000000000000154 R14: 00000000004c3bf6 R15: 000000000076bf2c
Modules linked in:
---[ end trace 0db5bc82d2e59054 ]---
RIP: 0010:l2cap_sock_getsockopt+0x7d3/0x1200 net/bluetooth/l2cap_sock.c:613
Code: 00 00 00 00 00 fc ff df 48 c1 ea 03 80 3c 02 00 0f 85 a0 09 00 00 48 b8 00 00 00 00 00 fc ff df 49 8b 1f 48 89 da 48 c1 ea 03 <80> 3c 02 00 0f 85 75 09 00 00 48 8b 3b e8 cb be f6 ff be 67 02 00
RSP: 0018:ffffc900055e7d20 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc900045e9000
RDX: 0000000000000000 RSI: ffffffff87253f44 RDI: 0000000000000001
RBP: ffffc900055e7e00 R08: ffff888053934600 R09: fffffbfff16a3f80
R10: fffffbfff16a3f7f R11: ffffffff8b51fbff R12: 0000000000000000
R13: 1ffff92000abcfa7 R14: ffff888090ae9000 R15: ffff888052e04000
FS:  00007efedae18700(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b30e23000 CR3: 000000009f9cf000 CR4: 00000000001426e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400