diff options
Diffstat (limited to 'app-arch/pigz/files/pigz-2.7-memcpy-ub.patch')
| -rw-r--r-- | app-arch/pigz/files/pigz-2.7-memcpy-ub.patch | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/app-arch/pigz/files/pigz-2.7-memcpy-ub.patch b/app-arch/pigz/files/pigz-2.7-memcpy-ub.patch new file mode 100644 index 000000000000..db53660748b4 --- /dev/null +++ b/app-arch/pigz/files/pigz-2.7-memcpy-ub.patch @@ -0,0 +1,26 @@ +https://github.com/madler/pigz/commit/e1ed230a1599a3cb64c8f5c003cced60e10e3314 +https://github.com/madler/pigz/issues/107 + +From e1ed230a1599a3cb64c8f5c003cced60e10e3314 Mon Sep 17 00:00:00 2001 +From: Mark Adler <madler@alumni.caltech.edu> +Date: Sat, 31 Dec 2022 21:28:26 -0800 +Subject: [PATCH] Avoid calling memcpy() with a NULL pointer. + +This is not permitted by the C99 standard even when the length is +zero. Go figure. +--- a/pigz.c ++++ b/pigz.c +@@ -3414,8 +3414,10 @@ local int outb(void *desc, unsigned char *buf, unsigned len) { + + // copy the output and alert the worker bees + out_len = len; +- g.out_tot += len; +- memcpy(out_copy, buf, len); ++ if (len) { ++ g.out_tot += len; ++ memcpy(out_copy, buf, len); ++ } + twist(outb_write_more, TO, 1); + twist(outb_check_more, TO, 1); + + |