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contact devel+owner@edk2.groups.io Reply-To: devel@edk2.groups.io,michael.d.kinney@intel.com List-Unsubscribe-Post: List-Unsubscribe=One-Click List-Unsubscribe: X-Gm-Message-State: 4A59vFCefqyuM2zyXhw3As0jx7686176AA= Content-Language: en-US Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: quoted-printable X-GND-Status: LEGIT Authentication-Results: spool.mail.gandi.net; dkim=pass header.d=groups.io header.s=20140610 header.b=MaVDMNgs; dmarc=fail reason="SPF not aligned (relaxed), DKIM not aligned (relaxed)" header.from=intel.com (policy=none); spf=pass (spool.mail.gandi.net: domain of bounce@groups.io designates 66.175.222.108 as permitted sender) smtp.mailfrom=bounce@groups.io; arc=reject ("signature check failed: fail, {[1] = sig:microsoft.com:reject}") Hi Kumar, Can you provide a link to a branch with this change. I am having issues apply the patch. Thanks, Mike > -----Original Message----- > From: Santhosh Kumar V > Sent: Saturday, February 3, 2024 2:11 AM > To: devel@edk2.groups.io; Santhosh Kumar V > Cc: Sivaraman Nainar ; Raj V Akilan > ; Kinney, Michael D ; > Kasbekar, Saloni ; Mathews, John > ; Clark-williams, Zachary williams@intel.com> > Subject: [PATCH] NetworkPkg Update Security Patch >=20 > Update Security patch for Bug 4541 (Predictable TCP ISNs) >=20 > Cc: Saloni Kasbekar > Cc: Zachary Clark-williams >=20 > Signed-off-by: SanthoshKumar > --- > NetworkPkg/Library/DxeNetLib/DxeNetLib.c | 21 ++++++++++++++------- > NetworkPkg/Library/DxeNetLib/DxeNetLib.inf | 2 +- > NetworkPkg/TcpDxe/TcpDxe.inf | 1 + > NetworkPkg/TcpDxe/TcpMain.h | 1 + > NetworkPkg/TcpDxe/TcpMisc.c | 7 ++++++- > NetworkPkg/TcpDxe/TcpTimer.c | 8 +++++--- > 6 files changed, 28 insertions(+), 12 deletions(-) >=20 > diff --git a/NetworkPkg/Library/DxeNetLib/DxeNetLib.c > b/NetworkPkg/Library/DxeNetLib/DxeNetLib.c > index fd4a9e15a8..d3cc8a59d4 100644 > --- a/NetworkPkg/Library/DxeNetLib/DxeNetLib.c > +++ b/NetworkPkg/Library/DxeNetLib/DxeNetLib.c > @@ -31,6 +31,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent > #include >=20 > #include >=20 > #include >=20 > +#include >=20 >=20 >=20 > #define NIC_ITEM_CONFIG_SIZE (sizeof (NIC_IP4_CONFIG_INFO) + sizeof > (EFI_IP4_ROUTE_TABLE) * MAX_IP4_CONFIG_IN_VARIABLE) >=20 > #define DEFAULT_ZERO_START ((UINTN) ~0) >=20 > @@ -902,14 +903,20 @@ NetRandomInitSeed ( > EFI_TIME Time; >=20 > UINT32 Seed; >=20 > UINT64 MonotonicCount; >=20 > + UINT32 RandomVal; >=20 > + >=20 > + if ( TRUE =3D=3D GetRandomNumber32(&RandomVal)) >=20 > + Seed =3D RandomVal; >=20 > + else >=20 > + { >=20 > + gRT->GetTime (&Time, NULL); >=20 > + Seed =3D (Time.Hour << 24 | Time.Day << 16 | Time.Minute << 8 | > Time.Second); >=20 > + Seed ^=3D Time.Nanosecond; >=20 > + Seed ^=3D Time.Year << 7; >=20 >=20 >=20 > - gRT->GetTime (&Time, NULL); >=20 > - Seed =3D (Time.Hour << 24 | Time.Day << 16 | Time.Minute << 8 | > Time.Second); >=20 > - Seed ^=3D Time.Nanosecond; >=20 > - Seed ^=3D Time.Year << 7; >=20 > - >=20 > - gBS->GetNextMonotonicCount (&MonotonicCount); >=20 > - Seed +=3D (UINT32)MonotonicCount; >=20 > + gBS->GetNextMonotonicCount (&MonotonicCount); >=20 > + Seed +=3D (UINT32)MonotonicCount; >=20 > + } >=20 >=20 >=20 > return Seed; >=20 > } >=20 > diff --git a/NetworkPkg/Library/DxeNetLib/DxeNetLib.inf > b/NetworkPkg/Library/DxeNetLib/DxeNetLib.inf > index 8145d256ec..2c800b7c00 100644 > --- a/NetworkPkg/Library/DxeNetLib/DxeNetLib.inf > +++ b/NetworkPkg/Library/DxeNetLib/DxeNetLib.inf > @@ -43,7 +43,7 @@ > MemoryAllocationLib >=20 > DevicePathLib >=20 > PrintLib >=20 > - >=20 > + RngLib >=20 >=20 >=20 > [Guids] >=20 > gEfiSmbiosTableGuid ## SOMETIMES_CONSUMES > ## SystemTable >=20 > diff --git a/NetworkPkg/TcpDxe/TcpDxe.inf > b/NetworkPkg/TcpDxe/TcpDxe.inf > index c0acbdca57..99c093600f 100644 > --- a/NetworkPkg/TcpDxe/TcpDxe.inf > +++ b/NetworkPkg/TcpDxe/TcpDxe.inf > @@ -67,6 +67,7 @@ > DpcLib >=20 > NetLib >=20 > IpIoLib >=20 > + RngLib >=20 >=20 >=20 >=20 >=20 > [Protocols] >=20 > diff --git a/NetworkPkg/TcpDxe/TcpMain.h b/NetworkPkg/TcpDxe/TcpMain.h > index c0c9b7f46e..f94598b6ba 100644 > --- a/NetworkPkg/TcpDxe/TcpMain.h > +++ b/NetworkPkg/TcpDxe/TcpMain.h > @@ -16,6 +16,7 @@ > #include >=20 > #include >=20 > #include >=20 > +#include >=20 >=20 >=20 > #include "Socket.h" >=20 > #include "TcpProto.h" >=20 > diff --git a/NetworkPkg/TcpDxe/TcpMisc.c b/NetworkPkg/TcpDxe/TcpMisc.c > index c93212d47d..4d33dd6ad6 100644 > --- a/NetworkPkg/TcpDxe/TcpMisc.c > +++ b/NetworkPkg/TcpDxe/TcpMisc.c > @@ -516,7 +516,12 @@ TcpGetIss ( > VOID >=20 > ) >=20 > { >=20 > - mTcpGlobalIss +=3D TCP_ISS_INCREMENT_1; >=20 > + UINT32 RandomVal; >=20 > + if ( TRUE =3D=3D GetRandomNumber32(&RandomVal)) >=20 > + mTcpGlobalIss +=3D RandomVal; >=20 > + else >=20 > + mTcpGlobalIss +=3D TCP_ISS_INCREMENT_1; >=20 > + >=20 > return mTcpGlobalIss; >=20 > } >=20 >=20 >=20 > diff --git a/NetworkPkg/TcpDxe/TcpTimer.c > b/NetworkPkg/TcpDxe/TcpTimer.c > index 5d2e124977..3370e6b264 100644 > --- a/NetworkPkg/TcpDxe/TcpTimer.c > +++ b/NetworkPkg/TcpDxe/TcpTimer.c > @@ -481,10 +481,12 @@ TcpTickingDpc ( > LIST_ENTRY *Next; >=20 > TCP_CB *Tcb; >=20 > INT16 Index; >=20 > - >=20 > + UINT32 RandomVal; >=20 > mTcpTick++; >=20 > - mTcpGlobalIss +=3D TCP_ISS_INCREMENT_2; >=20 > - >=20 > + if ( TRUE =3D=3D GetRandomNumber32(&RandomVal)) >=20 > + mTcpGlobalIss +=3D RandomVal >=20 > + else >=20 > + mTcpGlobalIss +=3D TCP_ISS_INCREMENT_2; >=20 > // >=20 > // Don't use LIST_FOR_EACH, which isn't delete safe. >=20 > // >=20 > -- > 2.42.0.windows.2 > -The information contained in this message may be confidential and > proprietary to American Megatrends (AMI). This communication is > intended to be read only by the individual or entity to whom it is > addressed or by their designee. If the reader of this message is not > the intended recipient, you are on notice that any distribution of this > message, in any form, is strictly prohibited. Please promptly notify > the sender by reply e-mail or by telephone at 770-246-8600, and then > delete or destroy all copies of the transmission. -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#115260): https://edk2.groups.io/g/devel/message/115260 Mute This Topic: https://groups.io/mt/104167647/7686176 Group Owner: devel+owner@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [rebecca@openfw.io] -=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-=3D-