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[ovs-dev] datapath-windows: Fix possible null dereference in ipfragment

Message ID 20170517135450.6336-1-aserdean@cloudbasesolutions.com
State Accepted
Headers show

Commit Message

Alin Serdean May 17, 2017, 1:54 p.m. UTC
Found using static analysis tools.

Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
---
 datapath-windows/ovsext/IpFragment.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Anand Kumar May 17, 2017, 6:33 p.m. UTC | #1
Thanks for identifying and fixing this. 

Acked-by: Anand Kumar <kumaranand@vmware.com>

Regards,
Anand Kumar

On 5/17/17, 6:54 AM, "ovs-dev-bounces@openvswitch.org on behalf of Alin Serdean" <ovs-dev-bounces@openvswitch.org on behalf of aserdean@cloudbasesolutions.com> wrote:

    Found using static analysis tools.
    
    Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
    ---
     datapath-windows/ovsext/IpFragment.c | 2 +-
     1 file changed, 1 insertion(+), 1 deletion(-)
    
    diff --git a/datapath-windows/ovsext/IpFragment.c b/datapath-windows/ovsext/IpFragment.c
    index 675c32e..0874cb9 100644
    --- a/datapath-windows/ovsext/IpFragment.c
    +++ b/datapath-windows/ovsext/IpFragment.c
    @@ -343,7 +343,7 @@ OvsProcessIpv4Fragment(POVS_SWITCH_CONTEXT switchContext,
             }
             POVS_FRAGMENT_LIST next = entry->head;
             POVS_FRAGMENT_LIST prev = entry->tail;
    -        if (prev != NULL || prev->offset < offset) {
    +        if (prev != NULL && prev->offset < offset) {
                 next = NULL;
                 goto found;
             }
    -- 
    2.10.2.windows.1
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Gurucharan Shetty May 23, 2017, 10:30 p.m. UTC | #2
On 17 May 2017 at 06:54, Alin Serdean <aserdean@cloudbasesolutions.com>
wrote:

> Found using static analysis tools.
>
> Signed-off-by: Alin Gabriel Serdean <aserdean@cloudbasesolutions.com>
>
Applied, thanks!


> ---
>  datapath-windows/ovsext/IpFragment.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/datapath-windows/ovsext/IpFragment.c
> b/datapath-windows/ovsext/IpFragment.c
> index 675c32e..0874cb9 100644
> --- a/datapath-windows/ovsext/IpFragment.c
> +++ b/datapath-windows/ovsext/IpFragment.c
> @@ -343,7 +343,7 @@ OvsProcessIpv4Fragment(POVS_SWITCH_CONTEXT
> switchContext,
>          }
>          POVS_FRAGMENT_LIST next = entry->head;
>          POVS_FRAGMENT_LIST prev = entry->tail;
> -        if (prev != NULL || prev->offset < offset) {
> +        if (prev != NULL && prev->offset < offset) {
>              next = NULL;
>              goto found;
>          }
> --
> 2.10.2.windows.1
> _______________________________________________
> dev mailing list
> dev@openvswitch.org
> https://mail.openvswitch.org/mailman/listinfo/ovs-dev
>
diff mbox

Patch

diff --git a/datapath-windows/ovsext/IpFragment.c b/datapath-windows/ovsext/IpFragment.c
index 675c32e..0874cb9 100644
--- a/datapath-windows/ovsext/IpFragment.c
+++ b/datapath-windows/ovsext/IpFragment.c
@@ -343,7 +343,7 @@  OvsProcessIpv4Fragment(POVS_SWITCH_CONTEXT switchContext,
         }
         POVS_FRAGMENT_LIST next = entry->head;
         POVS_FRAGMENT_LIST prev = entry->tail;
-        if (prev != NULL || prev->offset < offset) {
+        if (prev != NULL && prev->offset < offset) {
             next = NULL;
             goto found;
         }