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Fix short malloc & memory leak in union_relookup() (per Naofumi Honda; PR#3000).

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This commit is contained in:
pk 1996-12-07 11:02:47 +00:00
parent 781cd59dd4
commit 3127b0c5e2
1 changed files with 6 additions and 2 deletions
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8
sys/miscfs/union/union_subr.c
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@ -1,4 +1,4 @@
/* $NetBSD: union_subr.c,v 1.21 1996/10/25 21:58:05 cgd Exp $ */
/* $NetBSD: union_subr.c,v 1.22 1996/12/07 11:02:47 pk Exp $ */
/*
* Copyright (c) 1994 Jan-Simon Pendry
@ -741,6 +741,10 @@ union_relookup(um, dvp, vpp, cnp, cn, path, pathlen)
error = relookup(dvp, vpp, cn);
if (!error)
vrele(dvp);
else {
free(cn->cn_pnbuf, M_NAMEI);
cn->cn_pnbuf = 0;
}
return (error);
}
@ -883,7 +887,7 @@ union_vn_create(vpp, un, p)
* copied in the first place).
*/
cn.cn_namelen = strlen(un->un_path);
cn.cn_pnbuf = (caddr_t) malloc(cn.cn_namelen, M_NAMEI, M_WAITOK);
cn.cn_pnbuf = (caddr_t) malloc(cn.cn_namelen+1, M_NAMEI, M_WAITOK);
bcopy(un->un_path, cn.cn_pnbuf, cn.cn_namelen+1);
cn.cn_nameiop = CREATE;
cn.cn_flags = (LOCKPARENT|HASBUF|SAVENAME|SAVESTART|ISLASTCN);