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irda: Correctly clean up self->ias_obj on irda_bind() failure. 

If irda_open_tsap() fails, the irda_bind() code tries to destroy
the ->ias_obj object by hand, but does so wrongly.

In particular, it fails to a) release the hashbin attached to the
object and b) reset the self->ias_obj pointer to NULL.

Fix both problems by using irias_delete_object() and explicitly
setting self->ias_obj to NULL, just as irda_release() does.

Reported-by: Tavis Ormandy <taviso@cmpxchg8b.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2010-08-30 18:35:24 -07:00
parent 7619b1b2e2
commit 628e300ccc
1 changed files with 2 additions and 2 deletions
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4
net/irda/af_irda.c
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@ -824,8 +824,8 @@ static int irda_bind(struct socket *sock, struct sockaddr *uaddr, int addr_len)
err = irda_open_tsap(self, addr->sir_lsap_sel, addr->sir_name);
if (err < 0) {
kfree(self->ias_obj->name);
kfree(self->ias_obj);
irias_delete_object(self->ias_obj);
self->ias_obj = NULL;
goto out;
}