ref: 43ad9018a505c98e6cd408313d17dc22ace28494
parent: 997c75bc9698306afac99208f76f049bdd25f873
author: Ori Bernstein <[email protected]>
date: Wed Aug 9 15:02:38 EDT 2023
hjfs: use smaller fixed buffer size again, avoiding arbitrary size stack allocation when using bio with libthread
--- a/sys/src/cmd/hjfs/auth.c
+++ b/sys/src/cmd/hjfs/auth.c
@@ -200,6 +200,7 @@
User *u, *v;
int nu, i;
char ubuf[USERLEN], *uname;
+ uchar bbuf[RBLOCK];
Biobuf buf;
rlock(&fs->udatal);
@@ -210,7 +211,7 @@
}else
nu = fs->nudata;
- Binit(&buf, 2, OWRITE);
+ Binits(&buf, 2, OWRITE, bbuf, sizeof(bbuf));
if(ch != nil)
Biofn(&buf, Bchanwrite);
buf.aux = ch;