general protection fault, probably for non-canonical address 0xdffffc0000000012: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000090-0x0000000000000097] CPU: 0 PID: 24562 Comm: syz-executor.1 Not tainted 5.8.0-rc4-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:vsock_poll+0x75a/0x8e0 net/vmw_vsock/af_vsock.c:1038 Code: 84 ed 0f 85 c4 00 00 00 e8 13 3d 99 f9 48 8d bb 90 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa c6 44 24 30 00 48 c1 ea 03 <80> 3c 02 00 0f 85 3f 01 00 00 48 8d 54 24 30 be 01 00 00 00 48 89 RSP: 0018:ffffc9000199f650 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004365000 RDX: 0000000000000012 RSI: ffffffff87da7ced RDI: 0000000000000090 RBP: ffff8880a906b000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880a906b42a R15: 0000000000000001 FS: 00007fd926d0d700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000000 CR3: 0000000069509000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: sock_poll+0x159/0x460 net/socket.c:1266 vfs_poll include/linux/poll.h:90 [inline] do_select+0x8dc/0x1630 fs/select.c:534 core_sys_select+0x3ba/0x8e0 fs/select.c:677 do_pselect.constprop.0+0x17b/0x1c0 fs/select.c:759 __do_sys_pselect6 fs/select.c:800 [inline] __se_sys_pselect6 fs/select.c:791 [inline] __x64_sys_pselect6+0x1ea/0x2e0 fs/select.c:791 do_syscall_64+0x60/0xe0 arch/x86/entry/common.c:384 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45c1d9 Code: Bad RIP value. RSP: 002b:00007fd926d0cc78 EFLAGS: 00000246 ORIG_RAX: 000000000000010e RAX: ffffffffffffffda RBX: 0000000000023b80 RCX: 000000000045c1d9 RDX: 0000000000000000 RSI: 00000000200000c0 RDI: 0000000000000040 RBP: 000000000078bff8 R08: 0000000020000200 R09: 0000000000000000 R10: 0000000020000140 R11: 0000000000000246 R12: 000000000078bfac R13: 00007ffc1249530f R14: 00007fd926d0d9c0 R15: 000000000078bfac Modules linked in: ---[ end trace d0c991e7cf7e706e ]--- RIP: 0010:vsock_poll+0x75a/0x8e0 net/vmw_vsock/af_vsock.c:1038 Code: 84 ed 0f 85 c4 00 00 00 e8 13 3d 99 f9 48 8d bb 90 00 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa c6 44 24 30 00 48 c1 ea 03 <80> 3c 02 00 0f 85 3f 01 00 00 48 8d 54 24 30 be 01 00 00 00 48 89 RSP: 0018:ffffc9000199f650 EFLAGS: 00010206 RAX: dffffc0000000000 RBX: 0000000000000000 RCX: ffffc90004365000 RDX: 0000000000000012 RSI: ffffffff87da7ced RDI: 0000000000000090 RBP: ffff8880a906b000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000 R13: 0000000000000000 R14: ffff8880a906b42a R15: 0000000000000001 FS: 00007fd926d0d700(0000) GS:ffff8880ae600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000002100003f CR3: 0000000069509000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400