general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 0 PID: 3325 Comm: syz-executor.4 Not tainted 5.16.0-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:sk_prot_mem_limits include/net/sock.h:1523 [inline] RIP: 0010:sock_reserve_memory net/core/sock.c:1000 [inline] RIP: 0010:sock_setsockopt+0x23e0/0x2cb0 net/core/sock.c:1446 Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 3c 05 00 00 48 8b 83 20 01 00 00 ba ff ff 37 00 48 c1 e2 2a 48 8d 78 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 11 08 00 00 48 8b 40 08 48 8b b5 90 fe ff ff 48 RSP: 0018:ffffc9000b24fc70 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffffffff8c409660 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 0000000000000008 RBP: ffffc9000b24fde8 R08: 0000000000000001 R09: ffffffff906a13a7 R10: fffffbfff20d4274 R11: 0000000000000000 R12: ffff88801d14d234 R13: ffff88801d14d4a0 R14: 0000000000000002 R15: ffff88801d14d000 FS: 00007f81db4cd700(0000) GS:ffff8880b9c00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f81a3f94718 CR3: 000000001c3db000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __sys_setsockopt+0x4f8/0x610 net/socket.c:2176 __do_sys_setsockopt net/socket.c:2191 [inline] __se_sys_setsockopt net/socket.c:2188 [inline] __x64_sys_setsockopt+0xba/0x150 net/socket.c:2188 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: 0033:0x7f81dcb58059 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 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 b8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f81db4cd168 EFLAGS: 00000246 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 00007f81dcc6af60 RCX: 00007f81dcb58059 RDX: 0000000000000049 RSI: 0000000000000001 RDI: 0000000000000003 RBP: 00007f81dcbb208d R08: 0000000000000004 R09: 0000000000000000 R10: 00000000200000c0 R11: 0000000000000246 R12: 0000000000000000 R13: 00007ffe233b66ff R14: 00007f81db4cd300 R15: 0000000000022000 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:sk_prot_mem_limits include/net/sock.h:1523 [inline] RIP: 0010:sock_reserve_memory net/core/sock.c:1000 [inline] RIP: 0010:sock_setsockopt+0x23e0/0x2cb0 net/core/sock.c:1446 Code: fa 48 c1 ea 03 80 3c 02 00 0f 85 3c 05 00 00 48 8b 83 20 01 00 00 ba ff ff 37 00 48 c1 e2 2a 48 8d 78 08 48 89 f9 48 c1 e9 03 <80> 3c 11 00 0f 85 11 08 00 00 48 8b 40 08 48 8b b5 90 fe ff ff 48 RSP: 0018:ffffc9000b24fc70 EFLAGS: 00010202 RAX: 0000000000000000 RBX: ffffffff8c409660 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: 0000000000000008 RDI: 0000000000000008 RBP: ffffc9000b24fde8 R08: 0000000000000001 R09: ffffffff906a13a7 R10: fffffbfff20d4274 R11: 0000000000000000 R12: ffff88801d14d234 R13: ffff88801d14d4a0 R14: 0000000000000002 R15: ffff88801d14d000 FS: 00007f81db4cd700(0000) GS:ffff8880b9d00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f5b91ada1b8 CR3: 000000001c3db000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: fa cli 1: 48 c1 ea 03 shr $0x3,%rdx 5: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) 9: 0f 85 3c 05 00 00 jne 0x54b f: 48 8b 83 20 01 00 00 mov 0x120(%rbx),%rax 16: ba ff ff 37 00 mov $0x37ffff,%edx 1b: 48 c1 e2 2a shl $0x2a,%rdx 1f: 48 8d 78 08 lea 0x8(%rax),%rdi 23: 48 89 f9 mov %rdi,%rcx 26: 48 c1 e9 03 shr $0x3,%rcx * 2a: 80 3c 11 00 cmpb $0x0,(%rcx,%rdx,1) <-- trapping instruction 2e: 0f 85 11 08 00 00 jne 0x845 34: 48 8b 40 08 mov 0x8(%rax),%rax 38: 48 8b b5 90 fe ff ff mov -0x170(%rbp),%rsi 3f: 48 rex.W