From: Dan Carpenter <dan.carpenter@oracle.com>
Date: Tue, 24 Feb 2015 15:34:01 +0000 (+0300)
Subject: sunrpc: integer underflow in rsc_parse()
X-Git-Tag: omap-for-v4.1/wl12xx-dt~67^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=76cb4be993c03bf9ec65a58b13f12c679bb041e4;p=pandora-kernel.git

sunrpc: integer underflow in rsc_parse()

If we call groups_alloc() with invalid values then it's might lead to
memory corruption.  For example, with a negative value then we might not
allocate enough for sizeof(struct group_info).

(We're doing this in the caller for consistency with other callers of
groups_alloc().  The other alternative might be to move the check out of
all the callers into groups_alloc().)

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Simo Sorce <simo@redhat.com>
Signed-off-by: J. Bruce Fields <bfields@redhat.com>
---

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