From: Changqing Li <changqing...@windriver.com> The memory allocation function ACPI_ALLOCATE_ZEROED does not guarantee a successful allocation, but the subsequent code directly dereferences the pointer that receives it, which may lead to null pointer dereference. To fix this issue, a null pointer check should be added. If it is null, return exception code AE_NO_MEMORY.
Refer: https://nvd.nist.gov/vuln/detail/CVE-2024-24856 Signed-off-by: Changqing Li <changqing...@windriver.com> Signed-off-by: Steve Sakoman <st...@sakoman.com> --- .../acpica/acpica_20240322.bb | 3 +- .../acpica/files/CVE-2024-24856.patch | 31 +++++++++++++++++++ 2 files changed, 33 insertions(+), 1 deletion(-) create mode 100644 meta/recipes-extended/acpica/files/CVE-2024-24856.patch diff --git a/meta/recipes-extended/acpica/acpica_20240322.bb b/meta/recipes-extended/acpica/acpica_20240322.bb index 90e3599d32..1f93c0d435 100644 --- a/meta/recipes-extended/acpica/acpica_20240322.bb +++ b/meta/recipes-extended/acpica/acpica_20240322.bb @@ -16,7 +16,8 @@ COMPATIBLE_HOST = "(i.86|x86_64|arm|aarch64).*-linux" DEPENDS = "m4-native flex-native bison-native" -SRC_URI = "git://github.com/acpica/acpica;protocol=https;branch=master" +SRC_URI = "git://github.com/acpica/acpica;protocol=https;branch=master \ + file://CVE-2024-24856.patch" SRCREV = "170fc3076a86777077637f10b05c32ac21ac13aa" S = "${WORKDIR}/git" diff --git a/meta/recipes-extended/acpica/files/CVE-2024-24856.patch b/meta/recipes-extended/acpica/files/CVE-2024-24856.patch new file mode 100644 index 0000000000..c0c9c00d12 --- /dev/null +++ b/meta/recipes-extended/acpica/files/CVE-2024-24856.patch @@ -0,0 +1,31 @@ +From 4d4547cf13cca820ff7e0f859ba83e1a610b9fd0 Mon Sep 17 00:00:00 2001 +From: Huai-Yuan Liu <qq810974...@gmail.com> +Date: Tue, 9 Apr 2024 23:23:39 +0800 +Subject: [PATCH] check null return of ACPI_ALLOCATE_ZEROED in + AcpiDbConvertToPackage + +ACPI_ALLOCATE_ZEROED may fails, Elements might be null and will cause null pointer dereference later. + +Signed-off-by: Huai-Yuan Liu <qq810974...@gmail.com> + +CVE: CVE-2024-24856 +Upstream-Status: Backport [https://github.com/acpica/acpica/pull/946/commits/4d4547cf13cca820ff7e0f859ba83e1a610b9fd0] + +Signed-off-by: Changqing Li <changqing...@windriver.com> +--- + source/components/debugger/dbconvert.c | 2 ++ + 1 file changed, 2 insertions(+) + +diff --git a/source/components/debugger/dbconvert.c b/source/components/debugger/dbconvert.c +index 6a41000036..32ad5be179 100644 +--- a/source/components/debugger/dbconvert.c ++++ b/source/components/debugger/dbconvert.c +@@ -354,6 +354,8 @@ AcpiDbConvertToPackage ( + + Elements = ACPI_ALLOCATE_ZEROED ( + DB_DEFAULT_PKG_ELEMENTS * sizeof (ACPI_OBJECT)); ++ if (!Elements) ++ return (AE_NO_MEMORY); + + This = String; + for (i = 0; i < (DB_DEFAULT_PKG_ELEMENTS - 1); i++) -- 2.34.1
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