rsync/rsync-3.0.7-buf-overflow.patch

40 lines
1.1 KiB
Diff

index 7139b10..fef15aa 100644
--- a/flist.c
+++ b/flist.c
@@ -1640,21 +1640,29 @@ static void send_directory(int f, struct file_list *flist, char *fbuf, int len,
}
p = fbuf + len;
- if (len != 1 || *fbuf != '/')
+ if (len == 1 && *fbuf == '/')
+ remainder = MAXPATHLEN - 1;
+ else if (len < MAXPATHLEN-1) {
*p++ = '/';
- *p = '\0';
- remainder = MAXPATHLEN - (p - fbuf);
+ *p = '\0';
+ remainder = MAXPATHLEN - (len + 1);
+ } else
+ remainder = 0;
for (errno = 0, di = readdir(d); di; errno = 0, di = readdir(d)) {
char *dname = d_name(di);
if (dname[0] == '.' && (dname[1] == '\0'
|| (dname[1] == '.' && dname[2] == '\0')))
continue;
- if (strlcpy(p, dname, remainder) >= remainder) {
+ unsigned name_len = strlcpy(p, dname, remainder);
+ if (name_len >= remainder) {
+ char save = fbuf[len];
+ fbuf[len] = '\0';
io_error |= IOERR_GENERAL;
rprintf(FERROR_XFER,
- "cannot send long-named file %s\n",
- full_fname(fbuf));
+ "filename overflows max-path len by %u: %s/%s\n",
+ name_len - remainder + 1, fbuf, dname);
+ fbuf[len] = save;
continue;
}
if (dname[0] == '\0') {