From: Lee Chee Yang <chee.yang....@intel.com> Signed-off-by: Lee Chee Yang <chee.yang....@intel.com> --- meta/recipes-devtools/qemu/qemu.inc | 1 + .../qemu/qemu/CVE-2020-25723.patch | 52 +++++++++++++++++++ 2 files changed, 53 insertions(+) create mode 100644 meta/recipes-devtools/qemu/qemu/CVE-2020-25723.patch
diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc index 067179fdeb..7a963ad57c 100644 --- a/meta/recipes-devtools/qemu/qemu.inc +++ b/meta/recipes-devtools/qemu/qemu.inc @@ -51,6 +51,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \ file://0001-target-mips-Increase-number-of-TLB-entries-on-the-34.patch \ file://CVE-2019-20175.patch \ file://CVE-2020-24352.patch \ + file://CVE-2020-25723.patch \ " UPSTREAM_CHECK_REGEX = "qemu-(?P<pver>\d+(\.\d+)+)\.tar" diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2020-25723.patch b/meta/recipes-devtools/qemu/qemu/CVE-2020-25723.patch new file mode 100644 index 0000000000..e6e0f5ec30 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2020-25723.patch @@ -0,0 +1,52 @@ +From 2fdb42d840400d58f2e706ecca82c142b97bcbd6 Mon Sep 17 00:00:00 2001 +From: Li Qiang <liq...@163.com> +Date: Wed, 12 Aug 2020 09:17:27 -0700 +Subject: [PATCH] hw: ehci: check return value of 'usb_packet_map' + +If 'usb_packet_map' fails, we should stop to process the usb +request. + +Signed-off-by: Li Qiang <liq...@163.com> +Message-Id: <20200812161727.29412-1-liq...@163.com> +Signed-off-by: Gerd Hoffmann <kra...@redhat.com> + + +Upstream-Status: Backport [https://git.qemu.org/?p=qemu.git;a=commit;h=2fdb42d840400d58f2e706ecca82c142b97bcbd6] +CVE: CVE-2020-25723 +Signed-off-by: Chee Yang Lee <chee.yang....@intel.com> + +--- + hw/usb/hcd-ehci.c | 10 ++++++++-- + 1 file changed, 8 insertions(+), 2 deletions(-) + +diff --git a/hw/usb/hcd-ehci.c b/hw/usb/hcd-ehci.c +index 58cceac..4da446d 100644 +--- a/hw/usb/hcd-ehci.c ++++ b/hw/usb/hcd-ehci.c +@@ -1373,7 +1373,10 @@ static int ehci_execute(EHCIPacket *p, const char *action) + spd = (p->pid == USB_TOKEN_IN && NLPTR_TBIT(p->qtd.altnext) == 0); + usb_packet_setup(&p->packet, p->pid, ep, 0, p->qtdaddr, spd, + (p->qtd.token & QTD_TOKEN_IOC) != 0); +- usb_packet_map(&p->packet, &p->sgl); ++ if (usb_packet_map(&p->packet, &p->sgl)) { ++ qemu_sglist_destroy(&p->sgl); ++ return -1; ++ } + p->async = EHCI_ASYNC_INITIALIZED; + } + +@@ -1453,7 +1456,10 @@ static int ehci_process_itd(EHCIState *ehci, + if (ep && ep->type == USB_ENDPOINT_XFER_ISOC) { + usb_packet_setup(&ehci->ipacket, pid, ep, 0, addr, false, + (itd->transact[i] & ITD_XACT_IOC) != 0); +- usb_packet_map(&ehci->ipacket, &ehci->isgl); ++ if (usb_packet_map(&ehci->ipacket, &ehci->isgl)) { ++ qemu_sglist_destroy(&ehci->isgl); ++ return -1; ++ } + usb_handle_packet(dev, &ehci->ipacket); + usb_packet_unmap(&ehci->ipacket, &ehci->isgl); + } else { +-- +1.8.3.1 + -- 2.17.1
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