general protection fault, probably for non-canonical address 0xdffffc0000000001: 0000 [#1] PREEMPT SMP KASAN KASAN: null-ptr-deref in range [0x0000000000000008-0x000000000000000f] CPU: 1 PID: 23767 Comm: syz-executor.1 Not tainted 5.9.0-rc8-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011 RIP: 0010:compound_head include/linux/page-flags.h:182 [inline] RIP: 0010:put_page include/linux/mm.h:1172 [inline] RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:635 Code: 5c ad d1 fc 4d 85 f6 c7 44 24 04 00 00 00 00 0f 85 0f 01 00 00 e9 27 02 00 00 e8 c1 b0 d1 fc 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 62 02 00 00 48 8b 45 08 31 ff 49 89 c4 48 89 RSP: 0018:ffffc9001607f948 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff88809d8b78d0 RCX: ffffc9000ac9a000 RDX: 0000000000040000 RSI: ffffffff84a48e4f RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880a1cec7ff R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffffd R13: dffffc0000000000 R14: fffffffffffffff2 R15: 0000000000000000 FS: 00007f0b12f09700(0000) GS:ffff8880ae500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000001b31222000 CR3: 0000000047b80000 CR4: 00000000001526e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: qp_host_get_user_memory+0x249/0x3e0 drivers/misc/vmw_vmci/vmci_queue_pair.c:660 qp_host_register_user_memory drivers/misc/vmw_vmci/vmci_queue_pair.c:704 [inline] qp_broker_create drivers/misc/vmw_vmci/vmci_queue_pair.c:1383 [inline] qp_broker_alloc+0x10f9/0x1bf0 drivers/misc/vmw_vmci/vmci_queue_pair.c:1737 vmci_qp_broker_alloc+0x48/0x60 drivers/misc/vmw_vmci/vmci_queue_pair.c:1930 vmci_host_do_alloc_queuepair.constprop.0+0x1b4/0x400 drivers/misc/vmw_vmci/vmci_host.c:488 vmci_host_unlocked_ioctl+0x13cc/0x1e60 drivers/misc/vmw_vmci/vmci_host.c:927 vfs_ioctl fs/ioctl.c:48 [inline] __do_sys_ioctl fs/ioctl.c:753 [inline] __se_sys_ioctl fs/ioctl.c:739 [inline] __x64_sys_ioctl+0x193/0x200 fs/ioctl.c:739 do_syscall_64+0x2d/0x70 arch/x86/entry/common.c:46 entry_SYSCALL_64_after_hwframe+0x44/0xa9 RIP: 0033:0x45de59 Code: 0d b4 fb ff c3 66 2e 0f 1f 84 00 00 00 00 00 66 90 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 0f 83 db b3 fb ff c3 66 2e 0f 1f 84 00 00 00 00 RSP: 002b:00007f0b12f08c78 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 0000000000010300 RCX: 000000000045de59 RDX: 0000000020000100 RSI: 00000000000007a8 RDI: 0000000000000003 RBP: 000000000118bf60 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 000000000118bf2c R13: 000000000169fb7f R14: 00007f0b12f099c0 R15: 000000000118bf2c Modules linked in: ---[ end trace b647790e0377cda2 ]--- RIP: 0010:compound_head include/linux/page-flags.h:182 [inline] RIP: 0010:put_page include/linux/mm.h:1172 [inline] RIP: 0010:qp_release_pages+0x5a/0x310 drivers/misc/vmw_vmci/vmci_queue_pair.c:635 Code: 5c ad d1 fc 4d 85 f6 c7 44 24 04 00 00 00 00 0f 85 0f 01 00 00 e9 27 02 00 00 e8 c1 b0 d1 fc 48 8d 7d 08 48 89 f8 48 c1 e8 03 <42> 80 3c 28 00 0f 85 62 02 00 00 48 8b 45 08 31 ff 49 89 c4 48 89 RSP: 0018:ffffc9001607f948 EFLAGS: 00010202 RAX: 0000000000000001 RBX: ffff88809d8b78d0 RCX: ffffc9000ac9a000 RDX: 0000000000040000 RSI: ffffffff84a48e4f RDI: 0000000000000008 RBP: 0000000000000000 R08: 0000000000000001 R09: ffff8880a1cec7ff R10: 0000000000000000 R11: 0000000000000000 R12: 00000000fffffffd R13: dffffc0000000000 R14: fffffffffffffff2 R15: 0000000000000000 FS: 00007f0b12f09700(0000) GS:ffff8880ae400000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fd238060010 CR3: 0000000047b80000 CR4: 00000000001526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400