diff options
Diffstat (limited to 'meta/recipes-devtools/qemu/qemu/CVE-2021-3527-2.patch')
| -rw-r--r-- | meta/recipes-devtools/qemu/qemu/CVE-2021-3527-2.patch | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/meta/recipes-devtools/qemu/qemu/CVE-2021-3527-2.patch b/meta/recipes-devtools/qemu/qemu/CVE-2021-3527-2.patch new file mode 100644 index 0000000000..6371aced12 --- /dev/null +++ b/meta/recipes-devtools/qemu/qemu/CVE-2021-3527-2.patch @@ -0,0 +1,59 @@ +From 7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986 Mon Sep 17 00:00:00 2001 +From: Gerd Hoffmann <kraxel@redhat.com> +Date: Mon, 3 May 2021 15:29:12 +0200 +Subject: [PATCH] usb/redir: avoid dynamic stack allocation (CVE-2021-3527) +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +Use autofree heap allocation instead. + +Fixes: 4f4321c11ff ("usb: use iovecs in USBPacket") +Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> +Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> +Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> +Message-Id: <20210503132915.2335822-3-kraxel@redhat.com> + +Upstream-Status: Backport +https://gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986 +CVE: CVE-2021-3527 +Signed-off-by: Chee Yang Lee <chee.yang.lee@intel.com> + +--- + hw/usb/redirect.c | 6 +++--- + 1 file changed, 3 insertions(+), 3 deletions(-) + +diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c +index 17f06f3417..6a75b0dc4a 100644 +--- a/hw/usb/redirect.c ++++ b/hw/usb/redirect.c +@@ -620,7 +620,7 @@ static void usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, + .endpoint = ep, + .length = p->iov.size + }; +- uint8_t buf[p->iov.size]; ++ g_autofree uint8_t *buf = g_malloc(p->iov.size); + /* No id, we look at the ep when receiving a status back */ + usb_packet_copy(p, buf, p->iov.size); + usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet, +@@ -818,7 +818,7 @@ static void usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, + usbredirparser_send_bulk_packet(dev->parser, p->id, + &bulk_packet, NULL, 0); + } else { +- uint8_t buf[size]; ++ g_autofree uint8_t *buf = g_malloc(size); + usb_packet_copy(p, buf, size); + usbredir_log_data(dev, "bulk data out:", buf, size); + usbredirparser_send_bulk_packet(dev->parser, p->id, +@@ -923,7 +923,7 @@ static void usbredir_handle_interrupt_out_data(USBRedirDevice *dev, + USBPacket *p, uint8_t ep) + { + struct usb_redir_interrupt_packet_header interrupt_packet; +- uint8_t buf[p->iov.size]; ++ g_autofree uint8_t *buf = g_malloc(p->iov.size); + + DPRINTF("interrupt-out ep %02X len %zd id %"PRIu64"\n", ep, + p->iov.size, p->id); +-- +GitLab + |