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(parent: 445b3b9) | patch
xen/xenbus: Fix a double free in xenbus_map_ring_pv()
authorDan Carpenter <dan.carpenter@oracle.com>
Fri, 10 Jul 2020 11:36:10 +0000 (14:36 +0300)
committerBoris Ostrovsky <boris.ostrovsky@oracle.com>
Fri, 10 Jul 2020 12:20:43 +0000 (07:20 -0500)
commit176eb21d2c4df1df552535309b57fd2bfcb4af9d
tree72a1ee9e90ff23e74fb7ae6d5ff38897a8b383eftree | snapshot
parent445b3b942c83e537c2a748dc5d8c83c97476cefdcommit | diff
xen/xenbus: Fix a double free in xenbus_map_ring_pv()

When there is an error the caller frees "info->node" so the free here
will result in a double free.  We should just delete first kfree().

Fixes: c4ffa3e982bb ("xen/xenbus: avoid large structs and arrays on the stack")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: https://lore.kernel.org/r/20200710113610.GA92345@mwanda
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Boris Ostrovsky <boris.ostrovsky@oracle.com>
drivers/xen/xenbus/xenbus_client.c diff | blob | history
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