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-rw-r--r--poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3750-2.patch65
1 files changed, 65 insertions, 0 deletions
diff --git a/poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3750-2.patch b/poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3750-2.patch
new file mode 100644
index 0000000000..f163b4fab3
--- /dev/null
+++ b/poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3750-2.patch
@@ -0,0 +1,65 @@
+From 58e74682baf4e1ad26b064d8c02e5bc99c75c5d9 Mon Sep 17 00:00:00 2001
+From: =?utf8?q?Philippe=20Mathieu-Daud=C3=A9?= <philmd@redhat.com>
+Date: Wed, 15 Dec 2021 19:24:20 +0100
+Subject: [PATCH] softmmu/physmem: Simplify flatview_write and
+ address_space_access_valid
+MIME-Version: 1.0
+Content-Type: text/plain; charset=utf8
+Content-Transfer-Encoding: 8bit
+
+Remove unuseful local 'result' variables.
+
+Reviewed-by: Peter Xu <peterx@redhat.com>
+Reviewed-by: David Hildenbrand <david@redhat.com>
+Reviewed-by: Alexander Bulekov <alxndr@bu.edu>
+Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
+Signed-off-by: Philippe Mathieu-DaudÃf© <philmd@redhat.com>
+Message-Id: <20211215182421.418374-3-philmd@redhat.com>
+Signed-off-by: Thomas Huth <thuth@redhat.com>
+Signed-off-by: Virendra Thakur <virendra.thakur@kpit.com>
+
+CVE: CVE-2021-3750
+
+Upstream-Status: Backport [https://git.qemu.org/?p=qemu.git;a=commit;h=58e74682baf4e1ad26b064d8c02e5bc99c75c5d9]
+---
+ softmmu/physmem.c | 11 +++--------
+ 1 file changed, 3 insertions(+), 8 deletions(-)
+
+diff --git a/softmmu/physmem.c b/softmmu/physmem.c
+index 43ae70f..3d968ca 100644
+--- a/softmmu/physmem.c
++++ b/softmmu/physmem.c
+@@ -2826,14 +2826,11 @@ static MemTxResult flatview_write(FlatVi
+ hwaddr l;
+ hwaddr addr1;
+ MemoryRegion *mr;
+- MemTxResult result = MEMTX_OK;
+
+ l = len;
+ mr = flatview_translate(fv, addr, &addr1, &l, true, attrs);
+- result = flatview_write_continue(fv, addr, attrs, buf, len,
+- addr1, l, mr);
+-
+- return result;
++ return flatview_write_continue(fv, addr, attrs, buf, len,
++ addr1, l, mr);
+ }
+
+ /* Called within RCU critical section. */
+@@ -3130,12 +3127,10 @@ bool address_space_access_valid(AddressS
+ MemTxAttrs attrs)
+ {
+ FlatView *fv;
+- bool result;
+
+ RCU_READ_LOCK_GUARD();
+ fv = address_space_to_flatview(as);
+- result = flatview_access_valid(fv, addr, len, is_write, attrs);
+- return result;
++ return flatview_access_valid(fv, addr, len, is_write, attrs);
+ }
+
+ static hwaddr
+--
+1.8.3.1
+