commit 0144f87dc6c7f2f6becbd55519e433a9b36a466f
from: Xiao-Yong Jin <xjin@anl.gov>
via: Dan Cross <crossd@gmail.com>
date: Fri Jan 29 11:32:41 2021 UTC

htmlroff: fix array bounds

commit - 4e6bb208eb96baae65fd6b1bf99aaa1115b9a9ba
commit + 0144f87dc6c7f2f6becbd55519e433a9b36a466f
blob - 34b794be7227bb43d8c72a245901d92dd43b83bd
blob + f52e07343a038966f2874cf4ca0e91ff21387655
--- src/cmd/htmlroff/roff.c
+++ src/cmd/htmlroff/roff.c
@@ -257,7 +257,7 @@ copyarg(void)
 	int c;
 	Rune *r;
 
-	if(_readx(buf, sizeof buf, ArgMode, 0) < 0)
+	if(_readx(buf, MaxLine, ArgMode, 0) < 0)
 		return nil;
 	r = runestrstr(buf, L("\\\""));
 	if(r){
@@ -280,7 +280,7 @@ readline(int m)
 	static Rune buf[MaxLine];
 	Rune *r;
 
-	if(_readx(buf, sizeof buf, m, 1) < 0)
+	if(_readx(buf, MaxLine, m, 1) < 0)
 		return nil;
 	r = erunestrdup(buf);
 	return r;