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| author |   Davide Gardenal <davidegarde2000@gmail.com> | 2022-03-24 12:31:25 +0100 |
|---|---|---|
| committer |   Steve Sakoman <steve@sakoman.com> | 2022-03-24 04:09:33 -1000 |
| commit | 6d4e6302fa21b1c663b94b05088ecf9b9d544c0a (patch) | |
| tree | f6660eafffb1a7830efc05401bdcb3aa95b83af6 | |
| parent | d966a07d1f04aa76a4970d4af141f817197be0d2 (diff) | |
| download | openembedded-core-contrib-6d4e6302fa21b1c663b94b05088ecf9b9d544c0a.tar.gz | |
qemu: backport patch fix for CVE-2020-13791
Upstream patch:
https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00979.html
CVE: CVE-2020-13791
Signed-off-by: Davide Gardenal <davide.gardenal@huawei.com>
Signed-off-by: Steve Sakoman <steve@sakoman.com>
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu.inc | 1 | ||||
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2020-13791.patch | 44 |
2 files changed, 45 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu.inc b/meta/recipes-devtools/qemu/qemu.inc index 0bdc917783..25c2cdef3a 100644 --- a/meta/recipes-devtools/qemu/qemu.inc +++ b/meta/recipes-devtools/qemu/qemu.inc @@ -97,6 +97,7 @@ SRC_URI = "https://download.qemu.org/${BPN}-${PV}.tar.xz \ file://CVE-2020-13253_3.patch \ file://CVE-2020-13253_4.patch \ file://CVE-2020-13253_5.patch \ + file://CVE-2020-13791.patch \ " UPSTREAM_CHECK_REGEX = "qemu-(?P<pver>\d+(\.\d+)+)\.tar" diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2020-13791.patch b/meta/recipes-devtools/qemu/qemu/CVE-2020-13791.patch new file mode 100644 index 0000000000..1e8278f7b7 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2020-13791.patch @@ -0,0 +1,44 @@ +Date: Thu, 4 Jun 2020 16:25:24 +0530 +From: Prasad J Pandit <pjp@fedoraproject.org> +Subject: [PATCH v3] ati-vga: check address before reading configuration bytes (CVE-2020-13791) + +While reading PCI configuration bytes, a guest may send an +address towards the end of the configuration space. It may lead +to an OOB access issue. Add check to ensure 'address + size' is +within PCI configuration space. + +CVE: CVE-2020-13791 + +Upstream-Status: Submitted +https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00979.html + +Reported-by: Ren Ding <rding@gatech.edu> +Reported-by: Hanqing Zhao <hanqing@gatech.edu> +Reported-by: Yi Ren <c4tren@gmail.com> +Suggested-by: BALATON Zoltan <balaton@eik.bme.hu> +Signed-off-by: Prasad J Pandit <pjp@fedoraproject.org> +Signed-off-by: Davide Gardenal <davide.gardenal@huawei.com> +--- + hw/display/ati.c | 4 +++- + 1 file changed, 3 insertions(+), 1 deletion(-) + +Update v3: avoid modifying 'addr' variable + -> https://lists.gnu.org/archive/html/qemu-devel/2020-06/msg00834.html + +diff --git a/hw/display/ati.c b/hw/display/ati.c +index 67604e68de..b4d0fd88b7 100644 +--- a/hw/display/ati.c ++++ b/hw/display/ati.c +@@ -387,7 +387,9 @@ static uint64_t ati_mm_read(void *opaque, hwaddr addr, unsigned int size) + val = s->regs.crtc_pitch; + break; + case 0xf00 ... 0xfff: +- val = pci_default_read_config(&s->dev, addr - 0xf00, size); ++ if ((addr - 0xf00) + size <= pci_config_size(&s->dev)) { ++ val = pci_default_read_config(&s->dev, addr - 0xf00, size); ++ } + break; + case CUR_OFFSET: + val = s->regs.cur_offset; +-- +2.26.2 |