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-rw-r--r--sys/vm/vm_map.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/sys/vm/vm_map.c b/sys/vm/vm_map.c
index d042c65..f3ee930 100644
--- a/sys/vm/vm_map.c
+++ b/sys/vm/vm_map.c
@@ -2712,7 +2712,9 @@ vm_map_stack(vm_map_t map, vm_offset_t addrbos, vm_size_t max_ssize,
cow &= ~orient;
KASSERT(orient != 0, ("No stack grow direction"));
- if (addrbos < vm_map_min(map) || addrbos > map->max_offset)
+ if (addrbos < vm_map_min(map) ||
+ addrbos > vm_map_max(map) ||
+ addrbos + max_ssize < addrbos)
return (KERN_NO_SPACE);
init_ssize = (max_ssize < sgrowsiz) ? max_ssize : sgrowsiz;
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