Signed-off-by: Sakib Sajal <[email protected]> --- meta/recipes-devtools/qemu/qemu.inc | 1 + .../qemu/qemu/CVE-2021-3582.patch | 47 +++++++++++++++++++ 2 files changed, 48 insertions(+) create mode 100644 meta/recipes-devtools/qemu/qemu/CVE-2021-3582.patch
diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc index 0a0893d6ae..c64bbe66f2 100644 --- a/meta/recipes-devtools/qemu/qemu.inc +++ b/meta/recipes-devtools/qemu/qemu.inc @@ -66,6 +66,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \ file://CVE-2021-3544_5.patch \ file://CVE-2021-3544_6.patch \ file://CVE-2021-3544_7.patch \ + file://CVE-2021-3582.patch \ " UPSTREAM_CHECK_REGEX = "qemu-(?P<pver>\d+(\.\d+)+)\.tar" diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3582.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3582.patch new file mode 100644 index 0000000000..7a88e29384 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3582.patch @@ -0,0 +1,47 @@ +From 284f191b4abad213aed04cb0458e1600fd18d7c4 Mon Sep 17 00:00:00 2001 +From: Marcel Apfelbaum <[email protected]> +Date: Wed, 16 Jun 2021 14:06:00 +0300 +Subject: [PATCH] hw/rdma: Fix possible mremap overflow in the pvrdma device + (CVE-2021-3582) + +Ensure mremap boundaries not trusting the guest kernel to +pass the correct buffer length. + +Fixes: CVE-2021-3582 +Reported-by: VictorV (Kunlun Lab) <[email protected]> +Tested-by: VictorV (Kunlun Lab) <[email protected]> +Signed-off-by: Marcel Apfelbaum <[email protected]> +Message-Id: <[email protected]> +Reviewed-by: Yuval Shaia <[email protected]> +Tested-by: Yuval Shaia <[email protected]> +Reviewed-by: Prasad J Pandit <[email protected]> +Signed-off-by: Marcel Apfelbaum <[email protected]> + +CVE: CVE-2021-3582 +Upstream-Status: Backport [284f191b4abad213aed04cb0458e1600fd18d7c4] +Signed-off-by: Sakib Sajal <[email protected]> +--- + hw/rdma/vmw/pvrdma_cmd.c | 7 +++++++ + 1 file changed, 7 insertions(+) + +diff --git a/hw/rdma/vmw/pvrdma_cmd.c b/hw/rdma/vmw/pvrdma_cmd.c +index f59879e257..da7ddfa548 100644 +--- a/hw/rdma/vmw/pvrdma_cmd.c ++++ b/hw/rdma/vmw/pvrdma_cmd.c +@@ -38,6 +38,13 @@ static void *pvrdma_map_to_pdir(PCIDevice *pdev, uint64_t pdir_dma, + return NULL; + } + ++ length = ROUND_UP(length, TARGET_PAGE_SIZE); ++ if (nchunks * TARGET_PAGE_SIZE != length) { ++ rdma_error_report("Invalid nchunks/length (%u, %lu)", nchunks, ++ (unsigned long)length); ++ return NULL; ++ } ++ + dir = rdma_pci_dma_map(pdev, pdir_dma, TARGET_PAGE_SIZE); + if (!dir) { + rdma_error_report("Failed to map to page directory"); +-- +2.25.1 + -- 2.32.0
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