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authorJunio C Hamano <gitster@pobox.com>2016-02-26 13:37:16 -0800
committerJunio C Hamano <gitster@pobox.com>2016-02-26 13:37:16 -0800
commit11529ecec914d2f0d7575e6d443c2d5a6ff75424 (patch)
treef91bf9915ab0499913b8ee0e941a642183b7da67 /wrapper.c
parent3ed26a44b3415f5761bdab21f823d964c20a2824 (diff)
parent08c95df8faa25ab4c9ad3da45bc12abb9274d343 (diff)
downloadgit-11529ecec914d2f0d7575e6d443c2d5a6ff75424.tar.gz
Merge branch 'jk/tighten-alloc'
Update various codepaths to avoid manually-counted malloc(). * jk/tighten-alloc: (22 commits) ewah: convert to REALLOC_ARRAY, etc convert ewah/bitmap code to use xmalloc diff_populate_gitlink: use a strbuf transport_anonymize_url: use xstrfmt git-compat-util: drop mempcpy compat code sequencer: simplify memory allocation of get_message test-path-utils: fix normalize_path_copy output buffer size fetch-pack: simplify add_sought_entry fast-import: simplify allocation in start_packfile write_untracked_extension: use FLEX_ALLOC helper prepare_{git,shell}_cmd: use argv_array use st_add and st_mult for allocation size computation convert trivial cases to FLEX_ARRAY macros use xmallocz to avoid size arithmetic convert trivial cases to ALLOC_ARRAY convert manual allocations to argv_array argv-array: add detach function add helpers for allocating flex-array structs harden REALLOC_ARRAY and xcalloc against size_t overflow tree-diff: catch integer overflow in combine_diff_path allocation ...
Diffstat (limited to 'wrapper.c')
-rw-r--r--wrapper.c3
1 files changed, 3 insertions, 0 deletions
diff --git a/wrapper.c b/wrapper.c
index 29a45d2654..9afc1a021c 100644
--- a/wrapper.c
+++ b/wrapper.c
@@ -152,6 +152,9 @@ void *xcalloc(size_t nmemb, size_t size)
{
void *ret;
+ if (unsigned_mult_overflows(nmemb, size))
+ die("data too large to fit into virtual memory space");
+
memory_limit_check(size * nmemb, 0);
ret = calloc(nmemb, size);
if (!ret && (!nmemb || !size))