Hi Gary, Agree to generate a formal patch. You can attach the reviewed-by tag at the same time.
Can you help to file one Bugzilla for this issue? BTW, Do you need us commit the patch or by yourself? Thanks, Jiaxin > -----Original Message----- > From: Heyi Guo [mailto:heyi....@linaro.org] > Sent: Thursday, December 7, 2017 8:23 PM > To: Wu, Jiaxin <jiaxin...@intel.com>; linaro-u...@lists.linaro.org; edk2- > de...@lists.01.org; Fu, Siyuan <siyuan...@intel.com> > Cc: Junbiao Hong <hongjunb...@huawei.com>; Zeng, Star > <star.z...@intel.com>; Dong, Eric <eric.d...@intel.com>; Ni, Ruiyu > <ruiyu...@intel.com> > Subject: Re: [RFC] MdeModulePkg/Ip4Dxe: fix ICMP echo reply memory leak > > Hi Siyuan and Jiaxin, > > Thanks for your review; shall I generate a formal patch and post it > again, as well as making some commit message refinement? > > Regards, > > > Gary (Heyi Guo) > > > 在 12/7/2017 3:01 PM, Wu, Jiaxin 写道: > > It's is good to me. > > > > Reviewed-by: Jiaxin Wu <jiaxin...@intel.com> > > > > Thanks, > > Jiaxin > > > > > >> -----Original Message----- > >> From: Heyi Guo [mailto:heyi....@linaro.org] > >> Sent: Thursday, December 7, 2017 10:22 AM > >> To: linaro-u...@lists.linaro.org; edk2-devel@lists.01.org > >> Cc: Heyi Guo <heyi....@linaro.org>; Junbiao Hong > >> <hongjunb...@huawei.com>; Zeng, Star <star.z...@intel.com>; Dong, > Eric > >> <eric.d...@intel.com>; Ni, Ruiyu <ruiyu...@intel.com>; Fu, Siyuan > >> <siyuan...@intel.com>; Wu, Jiaxin <jiaxin...@intel.com> > >> Subject: [RFC] MdeModulePkg/Ip4Dxe: fix ICMP echo reply memory leak > >> > >> When UEFI receives IPMP echo packets it will enter Ip4IcmpReplyEcho > >> function, and then call Ip4Output. However, if Ip4Output gets some > >> error and exits early, e.g. fails to find the route entry, memory > >> buffer of "Data" gets no chance to be freed and memory leak will be > >> caused. If there is such an attacker in the network, we will see UEFI > >> runs out of memory and system hangs. > >> > >> Network stack code is so complicated that this is just a RFC to fix > >> this issue. Please provide your comments about this. > >> > >> Contributed-under: TianoCore Contribution Agreement 1.1 > >> Signed-off-by: Junbiao Hong <hongjunb...@huawei.com> > >> Signed-off-by: Heyi Guo <heyi....@linaro.org> > >> Cc: Star Zeng <star.z...@intel.com> > >> Cc: Eric Dong <eric.d...@intel.com> > >> Cc: Ruiyu Ni <ruiyu...@intel.com> > >> Cc: Siyuan Fu <siyuan...@intel.com> > >> Cc: Jiaxin Wu <jiaxin...@intel.com> > >> --- > >> MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Icmp.c | 3 +++ > >> 1 file changed, 3 insertions(+) > >> > >> diff --git a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Icmp.c > >> b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Icmp.c > >> index b4b0864..ed6bdbe 100644 > >> --- a/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Icmp.c > >> +++ b/MdeModulePkg/Universal/Network/Ip4Dxe/Ip4Icmp.c > >> @@ -267,6 +267,9 @@ Ip4IcmpReplyEcho ( > >> Ip4SysPacketSent, > >> NULL > >> ); > >> + if (EFI_ERROR (Status)) { > >> + NetbufFree (Data); > >> + } > >> > >> ON_EXIT: > >> NetbufFree (Packet); > >> -- > >> 2.7.4 _______________________________________________ edk2-devel mailing list edk2-devel@lists.01.org https://lists.01.org/mailman/listinfo/edk2-devel
