general protection fault, probably for non-canonical address 0xdffffc0000000070: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000380-0x0000000000000387] CPU: 0 PID: 4058 Comm: syz-executor312 Not tainted 5.17.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:llc_ui_connect+0x393/0xb30 net/llc/af_llc.c:500 Code: 80 3c 02 00 0f 85 de 06 00 00 4d 8b a7 38 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 80 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 7b 06 00 00 49 8b b4 24 80 03 00 00 4c 89 ca 4c RSP: 0018:ffffc9000456fcf8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880738bc800 RCX: 0000000000000000 RDX: 0000000000000070 RSI: ffffc9000456fe3e RDI: 0000000000000380 RBP: 1ffff920008adfa6 R08: 0000000000000001 R09: ffffc9000456fe38 R10: ffffed1003a842a6 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801d421012 R14: ffffc9000456fe30 R15: ffff88801d421000 FS: 0000555555b19300(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000280 CR3: 0000000017532000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __sys_connect+0xf5/0x120 net/socket.c:1917 __do_sys_connect net/socket.c:1927 [inline] __se_sys_connect net/socket.c:1924 [inline] __x64_sys_connect+0x6a/0xb0 net/socket.c:1924 do_syscall_x64 arch/x86/entry/common.c:50 [inline] do_syscall_64+0x35/0xb0 arch/x86/entry/common.c:80 entry_SYSCALL_64_after_hwframe+0x44/0xae RIP: 0033:0x7f7a079e5bd9 Code: 28 c3 e8 2a 14 00 00 66 2e 0f 1f 84 00 00 00 00 00 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 73 01 c3 48 c7 c1 c0 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007ffe4762ab18 EFLAGS: 00000246 ORIG_RAX: 000000000000002a RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f7a079e5bd9 RDX: 0000000000000010 RSI: 0000000020000140 RDI: 0000000000000003 RBP: 00007f7a079a9d80 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 00007f7a079a9e10 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:llc_ui_connect+0x393/0xb30 net/llc/af_llc.c:500 Code: 80 3c 02 00 0f 85 de 06 00 00 4d 8b a7 38 05 00 00 48 b8 00 00 00 00 00 fc ff df 49 8d bc 24 80 03 00 00 48 89 fa 48 c1 ea 03 <80> 3c 02 00 0f 85 7b 06 00 00 49 8b b4 24 80 03 00 00 4c 89 ca 4c RSP: 0018:ffffc9000456fcf8 EFLAGS: 00010202 RAX: dffffc0000000000 RBX: ffff8880738bc800 RCX: 0000000000000000 RDX: 0000000000000070 RSI: ffffc9000456fe3e RDI: 0000000000000380 RBP: 1ffff920008adfa6 R08: 0000000000000001 R09: ffffc9000456fe38 R10: ffffed1003a842a6 R11: 0000000000000000 R12: 0000000000000000 R13: ffff88801d421012 R14: ffffc9000456fe30 R15: ffff88801d421000 FS: 0000555555b19300(0000) GS:ffff8880b9e00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000280 CR3: 0000000017532000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 4: 0f 85 de 06 00 00 jne 0x6e8 a: 4d 8b a7 38 05 00 00 mov 0x538(%r15),%r12 11: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 18: fc ff df 1b: 49 8d bc 24 80 03 00 lea 0x380(%r12),%rdi 22: 00 23: 48 89 fa mov %rdi,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 7b 06 00 00 jne 0x6af 34: 49 8b b4 24 80 03 00 mov 0x380(%r12),%rsi 3b: 00 3c: 4c 89 ca mov %r9,%rdx 3f: 4c rex.WR