nixpkgs/pkgs/tools/archivers/zip/buffer-overflow-on-utf8-rh-bug-2165653.patch
Jan Kundrát dc0f09a49f zip: fix buffer overflow on Unicode path names
When creating ZIP files with non-ASCII names (such as some European
accent chars), something was detecting a buffer overflow and bailing
out. It turns out that this has been already fixed earlier this year in
Fedora, so let's reuse their patch as-is.

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=2165653
2023-10-12 16:56:04 +02:00

13 lines
549 B
Diff

diff -urp zip30/fileio.c zip30/fileio.c
--- zip30/fileio.c 2008-05-29 03:13:24.000000000 +0300
+++ zip30/fileio.c 2023-05-02 12:19:50.488314853 +0300
@@ -3502,7 +3502,7 @@ zwchar *local_to_wide_string(local_strin
if ((wc_string = (wchar_t *)malloc((wsize + 1) * sizeof(wchar_t))) == NULL) {
ZIPERR(ZE_MEM, "local_to_wide_string");
}
- wsize = mbstowcs(wc_string, local_string, strlen(local_string) + 1);
+ wsize = mbstowcs(wc_string, local_string, wsize + 1);
wc_string[wsize] = (wchar_t) 0;
/* in case wchar_t is not zwchar */