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Mitigate stack overflow when scanning very deep directory trees.

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Closes #2088.
This commit is contained in:
Victor M. Alvarez
2024-08-01 11:42:01 +02:00
parent be2212a29c
commit 2a9f61d484
1 changed files with 5 additions and 2 deletions
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cli/yara.c
+5 -2
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@@ -667,12 +667,14 @@ static int scan_dir(const char* dir, SCAN_OPTIONS* scan_opts)
{
struct dirent* de = readdir(dp);
char* full_path = calloc(YR_MAX_PATH, sizeof(char));
const size_t full_path_size = YR_MAX_PATH * sizeof(char);
while (de && result != ERROR_SCAN_TIMEOUT)
{
char full_path[YR_MAX_PATH];
struct stat st;
snprintf(full_path, sizeof(full_path), "%s/%s", dir, de->d_name);
snprintf(full_path, full_path_size, "%s/%s", dir, de->d_name);
int err = lstat(full_path, &st);
@@ -731,6 +733,7 @@ static int scan_dir(const char* dir, SCAN_OPTIONS* scan_opts)
de = readdir(dp);
}
free(full_path);
closedir(dp);
}