diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2020-15469-4.patch')
-rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2020-15469-4.patch | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2020-15469-4.patch b/meta/recipes-devtools/qemu/qemu/CVE-2020-15469-4.patch new file mode 100644 index 0000000000..52fac8a051 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2020-15469-4.patch @@ -0,0 +1,53 @@ +From f867cebaedbc9c43189f102e4cdfdff05e88df7f Mon Sep 17 00:00:00 2001 +From: Prasad J Pandit <pjp@fedoraproject.org> +Date: Tue, 11 Aug 2020 17:11:28 +0530 +Subject: [PATCH] prep: add ppc-parity write method + +Add ppc-parity mmio write method to avoid NULL pointer dereference +issue. + +Reported-by: Lei Sun <slei.casper@gmail.com> +Acked-by: David Gibson <david@gibson.dropbear.id.au> +Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> +Reviewed-by: Li Qiang <liq3ea@gmail.com> +Message-Id: <20200811114133.672647-5-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-2020-15469-4.patch?h=ubuntu/focal-security Upstream commit https://github.com/qemu/qemu/commit/f867cebaedbc9c43189f102e4cdfdff05e88df7f] +Signed-off-by: Chee Yang Lee <chee.yang.lee@intel.com> +--- + hw/ppc/prep_systemio.c | 8 ++++++++ + 1 file changed, 8 insertions(+) + +diff --git a/hw/ppc/prep_systemio.c b/hw/ppc/prep_systemio.c +index 4e48ef2..b2bd783 100644 +--- a/hw/ppc/prep_systemio.c ++++ b/hw/ppc/prep_systemio.c +@@ -23,6 +23,7 @@ + */ + + #include "qemu/osdep.h" ++#include "qemu/log.h" + #include "hw/irq.h" + #include "hw/isa/isa.h" + #include "hw/qdev-properties.h" +@@ -235,8 +236,15 @@ static uint64_t ppc_parity_error_readl(void *opaque, hwaddr addr, + return val; + } + ++static void ppc_parity_error_writel(void *opaque, hwaddr addr, ++ uint64_t data, unsigned size) ++{ ++ qemu_log_mask(LOG_GUEST_ERROR, "%s: invalid access\n", __func__); ++} ++ + static const MemoryRegionOps ppc_parity_error_ops = { + .read = ppc_parity_error_readl, ++ .write = ppc_parity_error_writel, + .valid = { + .min_access_size = 4, + .max_access_size = 4, +-- +1.8.3.1 + |