kasan: CONFIG_KASAN_INLINE enabled kasan: GPF could be caused by NULL-ptr deref or user memory access general protection fault: 0000 [#1] PREEMPT SMP KASAN Modules linked in: CPU: 0 PID: 7978 Comm: syz-executor906 Not tainted 4.14.202-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 task: ffff88809554e440 task.stack: ffff88809a4f8000 RIP: 0010:__read_once_size include/linux/compiler.h:183 [inline] RIP: 0010:compound_head include/linux/page-flags.h:147 [inline] RIP: 0010:put_page include/linux/mm.h:860 [inline] RIP: 0010:qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737 RSP: 0018:ffff88809a4ff888 EFLAGS: 00010202 RAX: 0000000000000004 RBX: ffff8880ac00b100 RCX: 1ffff11012aa9d9e RDX: 0000000000000000 RSI: fffffffffffffff2 RDI: 0000000000000020 RBP: 0000000000000000 R08: 0000000000000007 R09: 0000000000000001 R10: 0000000000000000 R11: ffff88809554e440 R12: dffffc0000000000 R13: 0000000000000000 R14: 0000000000000000 R15: fffffffffffffff2 FS: 0000000000c69880(0000) GS:ffff8880ba400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f34541f0018 CR3: 00000000aece2000 CR4: 00000000001406f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: qp_host_get_user_memory+0x235/0x470 drivers/misc/vmw_vmci/vmci_queue_pair.c:761 qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:804 [inline] qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1481 [inline] qp_broker_alloc+0xfee/0x19a0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1835 vmci_qp_broker_alloc+0x48/0x60 drivers/misc/vmw_vmci/vmci_queue_pair.c:2028 vmci_host_do_alloc_queuepair.constprop.0+0x16b/0x350 drivers/misc/vmw_vmci/vmci_host.c:495 vmci_host_unlocked_ioctl+0xd08/0x1980 drivers/misc/vmw_vmci/vmci_host.c:944 vfs_ioctl fs/ioctl.c:46 [inline] file_ioctl fs/ioctl.c:500 [inline] do_vfs_ioctl+0x75a/0xff0 fs/ioctl.c:684 SYSC_ioctl fs/ioctl.c:701 [inline] SyS_ioctl+0x7f/0xb0 fs/ioctl.c:692 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x4402f9 RSP: 002b:00007ffcdcf6be68 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00000000004002c8 RCX: 00000000004402f9 RDX: 0000000020000000 RSI: 00000000000007a8 RDI: 0000000000000003 RBP: 00000000006ca018 R08: 00000000004002c8 R09: 00000000004002c8 R10: 00000000004002c8 R11: 0000000000000246 R12: 0000000000401b00 R13: 0000000000401b90 R14: 0000000000000000 R15: 0000000000000000 Code: 89 3c 24 48 89 74 24 08 e8 6f 23 bc fd 4d 85 ff 0f 85 b1 00 00 00 e9 c6 01 00 00 e8 5c 23 bc fd 48 8d 7d 20 48 89 f8 48 c1 e8 03 <42> 80 3c 20 00 0f 85 be 01 00 00 4c 8b 7d 20 41 f6 c7 01 0f 85 RIP: __read_once_size include/linux/compiler.h:183 [inline] RSP: ffff88809a4ff888 RIP: compound_head include/linux/page-flags.h:147 [inline] RSP: ffff88809a4ff888 RIP: put_page include/linux/mm.h:860 [inline] RSP: ffff88809a4ff888 RIP: qp_release_pages+0x4f/0x280 drivers/misc/vmw_vmci/vmci_queue_pair.c:737 RSP: ffff88809a4ff888 ---[ end trace cb5d9770e6aac118 ]---