diff options
Diffstat (limited to 'poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3750-2.patch')
-rw-r--r-- | poky/meta/recipes-devtools/qemu/qemu/CVE-2021-3750-2.patch | 65 |
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 + |