diff options
| -rw-r--r-- | src/lib/memrange.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/src/lib/memrange.c b/src/lib/memrange.c index b68b86e2f8..9ae3e3e541 100644 --- a/src/lib/memrange.c +++ b/src/lib/memrange.c @@ -427,11 +427,12 @@ bool memranges_steal(struct memranges *ranges, resource_t limit, resource_t size return false; if (from_top) { + limit = MIN(limit, r->end); /* Ensure we're within the range, even aligned down. Proof is simple: If ALIGN_UP(r->begin) would be higher, the stolen range wouldn't fit.*/ - assert(r->begin <= ALIGN_DOWN(range_entry_end(r) - size, POWER_OF_2(align))); - *stolen_base = ALIGN_DOWN(range_entry_end(r) - size, POWER_OF_2(align)); + assert(r->begin <= ALIGN_DOWN(limit - size + 1, POWER_OF_2(align))); + *stolen_base = ALIGN_DOWN(limit - size + 1, POWER_OF_2(align)); } else { *stolen_base = ALIGN_UP(r->begin, POWER_OF_2(align)); } |