From: Ivan Ilchenko <[email protected]>
Bitmap initialization function is allowed to memset
caller-provided buffer with number of bytes exceeded
this buffer size. This happens due to wrong comparision
sign between buffer size and number of bytes required
to initialize bitmap.
Fixes: 602c9ca33a4 ("sched: bitmap is now dynamically allocated")
Cc: [email protected]
Reported-by: Andy Moreton <[email protected]>
Signed-off-by: Ivan Ilchenko <[email protected]>
Signed-off-by: Andrew Rybchenko <[email protected]>
Reviewed-by: Andy Moreton <[email protected]>
---
lib/eal/include/rte_bitmap.h | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/lib/eal/include/rte_bitmap.h b/lib/eal/include/rte_bitmap.h
index 9e2b8f2cbf..870aecc594 100644
--- a/lib/eal/include/rte_bitmap.h
+++ b/lib/eal/include/rte_bitmap.h
@@ -185,7 +185,7 @@ rte_bitmap_init(uint32_t n_bits, uint8_t *mem, uint32_t
mem_size)
size = __rte_bitmap_get_memory_footprint(n_bits,
&array1_byte_offset, &array1_slabs,
&array2_byte_offset, &array2_slabs);
- if (size < mem_size) {
+ if (size > mem_size) {
return NULL;
}
--
2.30.2
