--- /dev/null
+From 24551a99d1f765c891a4dc21a36f18ccbf56e612 Mon Sep 17 00:00:00 2001
+From: Steve Sakoman <steve@sakoman.com>
+Date: Tue, 10 Jan 2023 06:15:00 -1000
+Subject: [PATCH] BaseTools: fix gcc12 warning
+
+Sdk/C/LzmaEnc.c: In function ?LzmaEnc_CodeOneMemBlock?:
+Sdk/C/LzmaEnc.c:2828:19: error: storing the address of local variable ?outStream? in ?*p.rc.outStream? [-Werror=dangling-pointer=]
+ 2828 | p->rc.outStream = &outStream.vt;
+ | ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
+Sdk/C/LzmaEnc.c:2811:28: note: ?outStream? declared here
+ 2811 | CLzmaEnc_SeqOutStreamBuf outStream;
+ | ^~~~~~~~~
+Sdk/C/LzmaEnc.c:2811:28: note: ?pp? declared here
+Sdk/C/LzmaEnc.c:2828:19: error: storing the address of local variable ?outStream? in ?*(CLzmaEnc *)pp.rc.outStream? [-Werror=dangling-pointer=]
+ 2828 | p->rc.outStream = &outStream.vt;
+ | ~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~
+Sdk/C/LzmaEnc.c:2811:28: note: ?outStream? declared here
+ 2811 | CLzmaEnc_SeqOutStreamBuf outStream;
+ | ^~~~~~~~~
+Sdk/C/LzmaEnc.c:2811:28: note: ?pp? declared here
+cc1: all warnings being treated as errors
+
+Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
+Reviewed-by: Bob Feng <bob.c.feng@intel.com>
+
+Upstream-Status: Backport [https://github.com/tianocore/edk2/commit/85021f8cf22d1bd4114803c6c610dea5ef0059f1]
+Signed-off-by: Steve Sakoman <steve@sakoman.com>
+---
+ BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c | 3 ++-
+ 1 file changed, 2 insertions(+), 1 deletion(-)
+
+diff --git a/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c b/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
+index e281716fee..b575c4f888 100644
+--- a/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
++++ b/BaseTools/Source/C/LzmaCompress/Sdk/C/LzmaEnc.c
+@@ -2638,12 +2638,13 @@ SRes LzmaEnc_CodeOneMemBlock(CLzmaEncHandle pp, Bool reInit,
+ \r
+ nowPos64 = p->nowPos64;\r
+ RangeEnc_Init(&p->rc);\r
+- p->rc.outStream = &outStream.vt;\r
+ \r
+ if (desiredPackSize == 0)\r
+ return SZ_ERROR_OUTPUT_EOF;\r
+ \r
++ p->rc.outStream = &outStream.vt;\r
+ res = LzmaEnc_CodeOneBlock(p, desiredPackSize, *unpackSize);\r
++ p->rc.outStream = NULL;\r
+ \r
+ *unpackSize = (UInt32)(p->nowPos64 - nowPos64);\r
+ *destLen -= outStream.rem;\r
+--
+2.25.1
+