D33903.diff
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D33903.diff
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	diff --git a/lib/libc/stdio/fread.c b/lib/libc/stdio/fread.c
	--- a/lib/libc/stdio/fread.c
	+++ b/lib/libc/stdio/fread.c
	@@ -129,11 +129,13 @@
	}

	while (resid > (r = fp->_r)) {
	- (void)memcpy((void )p, (void )fp->_p, (size_t)r);
	- fp->_p += r;
	- /* fp->_r = 0 ... done in __srefill */
	- p += r;
	- resid -= r;
	+ if (r != 0) {
	+ (void)memcpy((void )p, (void )fp->_p, (size_t)r);
	+ fp->_p += r;
	+ /* fp->_r = 0 ... done in __srefill */
	+ p += r;
	+ resid -= r;
	+ }
	if (__srefill(fp)) {
	/* no more input: return partial result */
	return ((total - resid) / size);