[U-Boot] [PATCH] Prevent malloc with size 0

In case malloc is invoked with requested size 0, this patch will prevent the execution of the allocation algorithm (because it corrupts the data structures) and will return 0 to the caller.

Signed-off-by: Nikolaos Kostaras nkost@intracomdefense.com

--- common/dlmalloc.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/common/dlmalloc.c b/common/dlmalloc.c index fce7a76..d9e3ea9 100644 --- a/common/dlmalloc.c +++ b/common/dlmalloc.c @@ -2182,7 +2182,7 @@ Void_t* mALLOc(bytes) size_t bytes; return 0; }

- if ((long)bytes < 0) return 0; + if ((long)bytes <= 0) return 0;

nb = request2size(bytes); /* padded request size; */

-- 1.6.4.4