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block/nfs: fix NULL pointer dereference in URI parsing

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parse_uint_full wants to put the parsed value into the
variable passed via its second argument which is NULL.

Fixes: 94d6a7a76e
Cc: qemu-stable@nongnu.org
Signed-off-by: Peter Lieven <pl@kamp.de>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1485942829-10756-2-git-send-email-pl@kamp.de
Signed-off-by: Max Reitz <mreitz@redhat.com>
This commit is contained in:
Peter Lieven 2017-02-01 10:53:48 +01:00 committed by Max Reitz
parent 16e977d506
commit 8d20abe87a
1 changed files with 2 additions and 1 deletions
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block/nfs.c
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@ -108,12 +108,13 @@ static int nfs_parse_uri(const char *filename, QDict *options, Error **errp)
qdict_put(options, "path", qstring_from_str(uri->path));
for (i = 0; i < qp->n; i++) {
unsigned long long val;
if (!qp->p[i].value) {
error_setg(errp, "Value for NFS parameter expected: %s",
qp->p[i].name);
goto out;
}
if (parse_uint_full(qp->p[i].value, NULL, 0)) {
if (parse_uint_full(qp->p[i].value, &val, 0)) {
error_setg(errp, "Illegal value for NFS parameter: %s",
qp->p[i].name);
goto out;