diff options
| author | Mark Johnston <markj@FreeBSD.org> | 2025-10-28 20:15:13 +0000 |
|---|---|---|
| committer | Mark Johnston <markj@FreeBSD.org> | 2025-10-28 20:15:13 +0000 |
| commit | 20a38e847251076b12c173d7aa0b37eef261fd32 (patch) | |
| tree | bbb2093444efe3860f86e0f2758994e8e7218caf /sys/dev/vmm | |
| parent | 924c0c60d4aeaa474fb028118ca82d505166b4ab (diff) | |
Diffstat (limited to 'sys/dev/vmm')
| -rw-r--r-- | sys/dev/vmm/vmm_mem.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/sys/dev/vmm/vmm_mem.c b/sys/dev/vmm/vmm_mem.c index 9df31c9ba133..5ae944713c81 100644 --- a/sys/dev/vmm/vmm_mem.c +++ b/sys/dev/vmm/vmm_mem.c @@ -279,8 +279,10 @@ vm_mmap_memseg(struct vm *vm, vm_paddr_t gpa, int segid, vm_ooffset_t first, if (seg->object == NULL) return (EINVAL); + if (first + len < first || gpa + len < gpa) + return (EINVAL); last = first + len; - if (first < 0 || first >= last || last > seg->len) + if (first >= last || last > seg->len) return (EINVAL); if ((gpa | first | last) & PAGE_MASK) @@ -298,11 +300,12 @@ vm_mmap_memseg(struct vm *vm, vm_paddr_t gpa, int segid, vm_ooffset_t first, return (ENOSPC); vmmap = &mem->mem_vmspace->vm_map; - error = vm_map_find(vmmap, seg->object, first, &gpa, len, 0, - VMFS_NO_SPACE, prot, prot, 0); + vm_map_lock(vmmap); + error = vm_map_insert(vmmap, seg->object, first, gpa, gpa + len, + prot, prot, 0); + vm_map_unlock(vmmap); if (error != KERN_SUCCESS) - return (EFAULT); - + return (vm_mmap_to_errno(error)); vm_object_reference(seg->object); if (flags & VM_MEMMAP_F_WIRED) { |