general protection fault, probably for non-canonical address 0xdffffc000000000a: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000050-0x0000000000000057] CPU: 2 PID: 11411 Comm: syz-executor.1 Not tainted 5.10.0-rc7-syzkaller #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.12.0-59-gc9ba5276e321-prebuilt.qemu.org 04/01/2014 RIP: 0010:sco_sock_getsockopt+0x314/0x960 net/bluetooth/sco.c:1006 Code: 48 c1 ea 03 80 3c 02 00 0f 85 9f 05 00 00 49 8b 9e 00 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 50 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 87 05 00 00 8b 43 50 48 8b 4c RSP: 0018:ffffc90001e87d80 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000f644000 RDX: 000000000000000a RSI: ffffffff87edb8c6 RDI: 0000000000000050 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 1ffff920003d0fb2 R13: 0000000000000000 R14: ffff8880227d4000 R15: ffff8880231be558 FS: 00007fcc853b7700(0000) GS:ffff88802cc00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000001c57c48 CR3: 000000006ff56000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __sys_getsockopt+0x219/0x4c0 net/socket.c:2173 __do_sys_getsockopt net/socket.c:2188 [inline] __se_sys_getsockopt net/socket.c:2185 [inline] __x64_sys_getsockopt+0xba/0x150 net/socket.c:2185 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45dcd9 Code: bd b1 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 8b b1 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007fcc853b6c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000037 RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 000000000045dcd9 RDX: 000000000000000c RSI: 0000000000000112 RDI: 0000000000000004 RBP: 00000000004aae00 R08: 0000000020000040 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000075bf40 R13: 00007ffc6d4a37ff R14: 00007fcc85397000 R15: 0000000000000003 Modules linked in: ---[ end trace a163dfefa4bc7c03 ]--- RIP: 0010:sco_sock_getsockopt+0x314/0x960 net/bluetooth/sco.c:1006 Code: 48 c1 ea 03 80 3c 02 00 0f 85 9f 05 00 00 49 8b 9e 00 05 00 00 48 b8 00 00 00 00 00 fc ff df 48 8d 7b 50 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e 87 05 00 00 8b 43 50 48 8b 4c RSP: 0018:ffffc90001e87d80 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc9000f644000 RDX: 000000000000000a RSI: ffffffff87edb8c6 RDI: 0000000000000050 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000001 R11: 0000000000000000 R12: 1ffff920003d0fb2 R13: 0000000000000000 R14: ffff8880227d4000 R15: ffff8880231be558 FS: 00007fcc853b7700(0000) GS:ffff88802cd00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fcc85395db8 CR3: 000000006ff56000 CR4: 0000000000350ee0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400