[dpdk-dev] [PATCH v2] vhost: fix possible null pointer dereferencing

Jens Freimann jfreimann at redhat.com
Tue Nov 27 11:30:28 CET 2018


On Tue, Nov 27, 2018 at 10:54:51AM +0100, Maxime Coquelin wrote:
>If mmap() call fails in vhost_user_set_mem_table, dev->mem
>is set to NULL. If later, qva_to_vva() is called, a segfault
>occurs.
>
>Fixes: 8f972312b8f4 ("vhost: support vhost-user")
>Cc: stable at dpdk.org
>
>Reviewed-by: Tiwei Bie <tiwei.bie at intel.com>
>Signed-off-by: Maxime Coquelin <maxime.coquelin at redhat.com>
>---
> lib/librte_vhost/vhost_user.c | 6 ++++++
> 1 file changed, 6 insertions(+)
>

Jumping to an out label would have worked as well, but it doesn't
really matter.

Reviewed-by: Jens Freimann <jfreimann at redhat.com>



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