------------[ cut here ]------------ WARNING: CPU: 1 PID: 10493 at mm/gup.c:1173 __get_user_pages+0xd49/0x1080 mm/gup.c:1173 Modules linked in: CPU: 1 PID: 10493 Comm: syz-executor.5 Not tainted 6.4.0-syzkaller-08881-g533925cb7604 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/27/2023 RIP: 0010:__get_user_pages+0xd49/0x1080 mm/gup.c:1173 Code: 89 f8 48 c1 e8 03 80 3c 08 00 0f 85 bc 02 00 00 48 8b 44 24 20 48 8b 80 c0 00 00 00 48 8d 1c e8 e9 ad f7 ff ff e8 17 31 c3 ff <0f> 0b e9 32 f6 ff ff e8 0b 31 c3 ff 0f 0b e8 04 31 c3 ff 44 89 ed RSP: 0018:ffffc90006327478 EFLAGS: 00010216 RAX: 0000000000001ee3 RBX: 0000000000000100 RCX: ffffc9000c0d1000 RDX: 0000000000040000 RSI: ffffffff81c18719 RDI: 0000000000000007 RBP: 00000000fdfdf000 R08: 0000000000000007 R09: 0000000000000000 R10: 0000000000000100 R11: 0000000000000001 R12: ffff8880300cee00 R13: 0000000000210003 R14: ffff888026c96880 R15: 0000000000000000 FS: 0000000000000000(0000) GS:ffff8880b9900000(0063) knlGS:00000000f7fbeb40 CS: 0010 DS: 002b ES: 002b CR0: 0000000080050033 CR2: 00000000f72bbec8 CR3: 000000004c0a3000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: __get_user_pages_locked mm/gup.c:1456 [inline] __gup_longterm_locked+0x6f9/0x23e0 mm/gup.c:2150 internal_get_user_pages_fast+0x16e6/0x32f0 mm/gup.c:3148 get_user_pages_fast+0xa8/0xf0 mm/gup.c:3226 qp_host_get_user_memory+0xa5/0x4c0 drivers/misc/vmw_vmci/vmci_queue_pair.c:658 qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:711 [inline] qp_broker_attach drivers/misc/vmw_vmci/vmci_queue_pair.c:1638 [inline] qp_broker_alloc+0x856/0x1d00 drivers/misc/vmw_vmci/vmci_queue_pair.c:1752 vmci_qp_broker_alloc+0x9a/0xc0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1942 vmci_host_do_alloc_queuepair.constprop.0+0x1a5/0x3a0 drivers/misc/vmw_vmci/vmci_host.c:496 vmci_host_unlocked_ioctl+0x529/0x1f60 drivers/misc/vmw_vmci/vmci_host.c:935 compat_ptr_ioctl+0x71/0xa0 fs/ioctl.c:906 __do_compat_sys_ioctl+0x25b/0x2b0 fs/ioctl.c:968 do_syscall_32_irqs_on arch/x86/entry/common.c:112 [inline] __do_fast_syscall_32+0x65/0xf0 arch/x86/entry/common.c:178 do_fast_syscall_32+0x33/0x70 arch/x86/entry/common.c:203 entry_SYSENTER_compat_after_hwframe+0x70/0x82 RIP: 0023:0xf7fc3579 Code: b8 01 10 06 03 74 b4 01 10 07 03 74 b0 01 10 08 03 74 d8 01 00 00 00 00 00 00 00 00 00 00 00 00 00 51 52 55 89 e5 0f 34 cd 80 <5d> 5a 59 c3 90 90 90 90 8d b4 26 00 00 00 00 8d b4 26 00 00 00 00 RSP: 002b:00000000f7fbe5cc EFLAGS: 00000296 ORIG_RAX: 0000000000000036 RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00000000000007a8 RDX: 0000000020000640 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 ---------------- Code disassembly (best guess), 2 bytes skipped: 0: 10 06 adc %al,(%rsi) 2: 03 74 b4 01 add 0x1(%rsp,%rsi,4),%esi 6: 10 07 adc %al,(%rdi) 8: 03 74 b0 01 add 0x1(%rax,%rsi,4),%esi c: 10 08 adc %cl,(%rax) e: 03 74 d8 01 add 0x1(%rax,%rbx,8),%esi 1e: 00 51 52 add %dl,0x52(%rcx) 21: 55 push %rbp 22: 89 e5 mov %esp,%ebp 24: 0f 34 sysenter 26: cd 80 int $0x80 * 28: 5d pop %rbp <-- trapping instruction 29: 5a pop %rdx 2a: 59 pop %rcx 2b: c3 retq 2c: 90 nop 2d: 90 nop 2e: 90 nop 2f: 90 nop 30: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi 37: 8d b4 26 00 00 00 00 lea 0x0(%rsi,%riz,1),%esi