1 files changed, 53 insertions, 0 deletions

diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2020-15469-5.patch b/meta/recipes-devtools/qemu/qemu/CVE-2020-15469-5.patch
new file mode 100644
index 0000000000..49c6c5e3e2
--- /dev/null
+++ b/meta/recipes-devtools/qemu/qemu/CVE-2020-15469-5.patch
@@ -0,0 +1,53 @@
+From b5bf601f364e1a14ca4c3276f88dfec024acf613 Mon Sep 17 00:00:00 2001
+From: Prasad J Pandit <pjp@fedoraproject.org>
+Date: Tue, 11 Aug 2020 17:11:29 +0530
+Subject: [PATCH] nvram: add nrf51_soc flash read method
+
+Add nrf51_soc mmio read method to avoid NULL pointer dereference
+issue.
+
+Reported-by: Lei Sun <slei.casper@gmail.com>
+Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
+Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org>
+Reviewed-by: Li Qiang <liq3ea@gmail.com>
+Message-Id: <20200811114133.672647-6-ppandit@redhat.com>
+Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
+
+CVE: CVE-2020-15469
+Upstream-Status: Backport [import from ubuntu https://git.launchpad.net/ubuntu/+source/qemu/tree/debian/patches/CVE-2020-15469-5.patch?h=ubuntu/focal-security Upstream commit https://github.com/qemu/qemu/commit/b5bf601f364e1a14ca4c3276f88dfec024acf613 ]
+Signed-off-by: Chee Yang Lee <chee.yang.lee@intel.com>
+---
+ hw/nvram/nrf51_nvm.c | 10 ++++++++++
+ 1 file changed, 10 insertions(+)
+
+diff --git a/hw/nvram/nrf51_nvm.c b/hw/nvram/nrf51_nvm.c
+index f2283c1..7b3460d 100644
+--- a/hw/nvram/nrf51_nvm.c
++++ b/hw/nvram/nrf51_nvm.c
+@@ -273,6 +273,15 @@ static const MemoryRegionOps io_ops = {
+         .endianness = DEVICE_LITTLE_ENDIAN,
+ };
+ 
++static uint64_t flash_read(void *opaque, hwaddr offset, unsigned size)
++{
++    /*
++     * This is a rom_device MemoryRegion which is always in
++     * romd_mode (we never put it in MMIO mode), so reads always
++     * go directly to RAM and never come here.
++     */
++    g_assert_not_reached();
++}
+ 
+ static void flash_write(void *opaque, hwaddr offset, uint64_t value,
+         unsigned int size)
+@@ -300,6 +309,7 @@ static void flash_write(void *opaque, hwaddr offset, uint64_t value,
+ 
+ 
+ static const MemoryRegionOps flash_ops = {
++    .read = flash_read,
+     .write = flash_write,
+     .valid.min_access_size = 4,
+     .valid.max_access_size = 4,
+-- 
+1.8.3.1
+