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Fix a potential memory leak in the NFS over TLS handling code.

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For the TLS case where there is a "user@domain" name specified in the
X.509 v3 certificate presented by the client in the otherName component
of subjectAltName, a gid list is allocated via mem_alloc().
This needs to be free'd. Otherwise xp_gidp == NULL and free() handles that.
(The size argument to mem_free() is not used by FreeBSD, so it can be 0.)

This leak would not have occurred for any other case than NFS over TLS
with the "user@domain" in the client's certificate.
This commit is contained in:
Rick Macklem 2020-09-05 00:50:52 +00:00
parent 90802d88a5
commit 22f085c43b
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=365355
1 changed files with 2 additions and 0 deletions
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2
sys/rpc/svc.c
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@ -902,6 +902,8 @@ svc_xprt_free(SVCXPRT *xprt)
{
mem_free(xprt->xp_p3, sizeof(SVCXPRT_EXT));
/* The size argument is ignored, so 0 is ok. */
mem_free(xprt->xp_gidp, 0);
mem_free(xprt, sizeof(SVCXPRT));
}