diff options
Diffstat (limited to 'sha1_file.c')
| -rw-r--r-- | sha1_file.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/sha1_file.c b/sha1_file.c index 7628ee9..f2b1ae0 100644 --- a/sha1_file.c +++ b/sha1_file.c @@ -510,7 +510,10 @@ static int check_packed_git_idx(const char *path, struct packed_git *p) * for offsets larger than 2^31. */ unsigned long min_size = 8 + 4*256 + nr*(20 + 4 + 4) + 20 + 20; - if (idx_size < min_size || idx_size > min_size + (nr - 1)*8) { + unsigned long max_size = min_size; + if (nr) + max_size += (nr - 1)*8; + if (idx_size < min_size || idx_size > max_size) { munmap(idx_map, idx_size); return error("wrong index file size in %s", path); } |