nixpkgs/pkgs/os-specific/linux/ftop/ftop-fix_buffer_overflow.patch

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--- src/ftop.c.orig 2010-06-15 21:42:15.000000000 +0200
+++ src/ftop.c 2010-06-15 21:45:38.000000000 +0200
@@ -935,7 +935,7 @@
{
if (bar_used > 0)
{
- snprintf(rate_buf, bar_used + 1, "%s", tmp_buf);
+ snprintf(rate_buf, bar_used >= sizeof(rate_buf) ? sizeof(rate_buf) : bar_used + 1, "%s", tmp_buf);
p_attron(p, A_REVERSE);
p_printf(p, "%s", rate_buf);
if (bar_used > bytes)