diff mbox series

[v2] net/ixgbe: fix using heap pointer after free

Message ID 20210709031459.864943-1-dapengx.yu@intel.com (mailing list archive)
State Accepted, archived
Delegated to: Qi Zhang
Headers show
Series [v2] net/ixgbe: fix using heap pointer after free | expand

Checks

Context Check Description
ci/Intel-compilation warning apply issues
ci/iol-testing success Testing PASS
ci/iol-abi-testing warning Testing issues
ci/iol-intel-Functional success Functional Testing PASS
ci/iol-intel-Performance success Performance Testing PASS
ci/github-robot success github build: passed
ci/checkpatch success coding style OK

Commit Message

Yu, DapengX July 9, 2021, 3:14 a.m. UTC 
From: Dapeng Yu <dapengx.yu@intel.com>

The original code use a heap pointer after it is freed.
This patch fix it.

Fixes: a14de8b498d1 ("net/ixgbe: destroy consistent filter")
Cc: stable@dpdk.org

Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
---
V2:
* Simplify the patch according to maintainer's comment:
  only one "pmd_flow" in the list, so just "break;" is fine.
---
 drivers/net/ixgbe/ixgbe_flow.c | 1 +
 1 file changed, 1 insertion(+)

Comments

Wang, Haiyue July 9, 2021, 4:35 a.m. UTC | #1 
> -----Original Message-----
> From: Yu, DapengX <dapengx.yu@intel.com>
> Sent: Friday, July 9, 2021 11:15
> To: Wang, Haiyue <haiyue.wang@intel.com>
> Cc: dev@dpdk.org; Yu, DapengX <dapengx.yu@intel.com>; stable@dpdk.org
> Subject: [PATCH v2] net/ixgbe: fix using heap pointer after free
> 
> From: Dapeng Yu <dapengx.yu@intel.com>
> 
> The original code use a heap pointer after it is freed.
> This patch fix it.
> 
> Fixes: a14de8b498d1 ("net/ixgbe: destroy consistent filter")
> Cc: stable@dpdk.org
> 
> Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
> ---
> V2:
> * Simplify the patch according to maintainer's comment:
>   only one "pmd_flow" in the list, so just "break;" is fine.
> ---
>  drivers/net/ixgbe/ixgbe_flow.c | 1 +
>  1 file changed, 1 insertion(+)
> 

Good catch, thanks!

Reviewed-by: Haiyue Wang <haiyue.wang@intel.com>


> --
> 2.27.0
Zhang, Qi Z July 9, 2021, 7:29 a.m. UTC | #2 
> -----Original Message-----
> From: dev <dev-bounces@dpdk.org> On Behalf Of Wang, Haiyue
> Sent: Friday, July 9, 2021 12:35 PM
> To: Yu, DapengX <dapengx.yu@intel.com>
> Cc: dev@dpdk.org; stable@dpdk.org
> Subject: Re: [dpdk-dev] [PATCH v2] net/ixgbe: fix using heap pointer after free
> 
> > -----Original Message-----
> > From: Yu, DapengX <dapengx.yu@intel.com>
> > Sent: Friday, July 9, 2021 11:15
> > To: Wang, Haiyue <haiyue.wang@intel.com>
> > Cc: dev@dpdk.org; Yu, DapengX <dapengx.yu@intel.com>; stable@dpdk.org
> > Subject: [PATCH v2] net/ixgbe: fix using heap pointer after free
> >
> > From: Dapeng Yu <dapengx.yu@intel.com>
> >
> > The original code use a heap pointer after it is freed.
> > This patch fix it.
> >
> > Fixes: a14de8b498d1 ("net/ixgbe: destroy consistent filter")
> > Cc: stable@dpdk.org
> >
> > Signed-off-by: Dapeng Yu <dapengx.yu@intel.com>
> > ---
> > V2:
> > * Simplify the patch according to maintainer's comment:
> >   only one "pmd_flow" in the list, so just "break;" is fine.
> > ---
> >  drivers/net/ixgbe/ixgbe_flow.c | 1 +
> >  1 file changed, 1 insertion(+)
> >
> 
> Good catch, thanks!
> 
> Reviewed-by: Haiyue Wang <haiyue.wang@intel.com>

Applied to dpdk-next-net-intel.

Thanks
Qi
> 
> 
> > --
> > 2.27.0
diff mbox series

Patch

diff --git a/drivers/net/ixgbe/ixgbe_flow.c b/drivers/net/ixgbe/ixgbe_flow.c
index 0b10e91a9b..511b612f7f 100644
--- a/drivers/net/ixgbe/ixgbe_flow.c
+++ b/drivers/net/ixgbe/ixgbe_flow.c
@@ -3437,6 +3437,7 @@  ixgbe_flow_destroy(struct rte_eth_dev *dev,
 			TAILQ_REMOVE(&ixgbe_flow_list,
 				ixgbe_flow_mem_ptr, entries);
 			rte_free(ixgbe_flow_mem_ptr);
+			break;
 		}
 	}
 	rte_free(flow);