From: Sakib Sajal <sakib.sa...@windriver.com> Source: https://git.yoctoproject.org/git/poky MR: 112369 Type: Security Fix Disposition: Backport from http://git.yoctoproject.org/cgit/cgit.cgi/poky/commit/meta/recipes-devtools/qemu?id=48960ce56265e9ec7ec352c0d0fcde6ed44569be ChangeID: 799afc7adf3f2c915751744b618e38cccb01d854 Description:
(From OE-Core rev: e16cd155c5ef7cfe8b4d3a94485cb7b13fd95036) Signed-off-by: Sakib Sajal <sakib.sa...@windriver.com> Signed-off-by: Richard Purdie <richard.pur...@linuxfoundation.org> (cherry picked from commit 48960ce56265e9ec7ec352c0d0fcde6ed44569be) Signed-off-by: Armin Kuster <akus...@mvista.com> --- meta/recipes-devtools/qemu/qemu.inc | 1 + .../qemu/qemu/CVE-2021-3682.patch | 41 +++++++++++++++++++ 2 files changed, 42 insertions(+) create mode 100644 meta/recipes-devtools/qemu/qemu/CVE-2021-3682.patch diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc index 211c03e57b..ef9bc3f64a 100644 --- a/meta/recipes-devtools/qemu/qemu.inc +++ b/meta/recipes-devtools/qemu/qemu.inc @@ -91,6 +91,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \ file://CVE-2020-12829_5.patch \ file://CVE-2020-27617.patch \ file://CVE-2020-28916.patch \ + file://CVE-2021-3682.patch \ " UPSTREAM_CHECK_REGEX = "qemu-(?P<pver>\d+(\.\d+)+)\.tar" diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3682.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3682.patch new file mode 100644 index 0000000000..50a49233d3 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3682.patch @@ -0,0 +1,41 @@ +From 5e796671e6b8d5de4b0b423dce1b3eba144a92c9 Mon Sep 17 00:00:00 2001 +From: Gerd Hoffmann <kra...@redhat.com> +Date: Thu, 22 Jul 2021 09:27:56 +0200 +Subject: [PATCH] usbredir: fix free call +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +data might point into the middle of a larger buffer, there is a separate +free_on_destroy pointer passed into bufp_alloc() to handle that. It is +only used in the normal workflow though, not when dropping packets due +to the queue being full. Fix that. + +Resolves: https://gitlab.com/qemu-project/qemu/-/issues/491 +Signed-off-by: Gerd Hoffmann <kra...@redhat.com> +Reviewed-by: Marc-André Lureau <marcandre.lur...@redhat.com> +Message-Id: <20210722072756.647673-1-kra...@redhat.com> + +CVE: CVE-2021-3682 +Upstream-Status: Backport [5e796671e6b8d5de4b0b423dce1b3eba144a92c9] +Signed-off-by: Sakib Sajal <sakib.sa...@windriver.com> +--- + hw/usb/redirect.c | 2 +- + 1 file changed, 1 insertion(+), 1 deletion(-) + +diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c +index 4ec9326e05..1ec909a63a 100644 +--- a/hw/usb/redirect.c ++++ b/hw/usb/redirect.c +@@ -476,7 +476,7 @@ static int bufp_alloc(USBRedirDevice *dev, uint8_t *data, uint16_t len, + if (dev->endpoint[EP2I(ep)].bufpq_dropping_packets) { + if (dev->endpoint[EP2I(ep)].bufpq_size > + dev->endpoint[EP2I(ep)].bufpq_target_size) { +- free(data); ++ free(free_on_destroy); + return -1; + } + dev->endpoint[EP2I(ep)].bufpq_dropping_packets = 0; +-- +2.25.1 + -- 2.25.1
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