libceph: NULL deref on crush_decode() error path

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If there is not enough space then ceph_decode_32_safe() does a goto bad.
We need to return an error code in that situation.  The current code
returns ERR_PTR(0) which is NULL.  The callers are not expecting that
and it results in a NULL dereference.

Fixes: f24e9980eb ("ceph: OSD client")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>

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Dan Carpenter 2017-05-23 17:25:10 +03:00 • committed by Ilya Dryomov

parent b51456a609

commit 293dffaad8

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net/ceph/osdmap.c

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