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 @@ | |||
1 | From 7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986 Mon Sep 17 00:00:00 2001 | ||
2 | From: Gerd Hoffmann <kraxel@redhat.com> | ||
3 | Date: Mon, 3 May 2021 15:29:12 +0200 | ||
4 | Subject: [PATCH] usb/redir: avoid dynamic stack allocation (CVE-2021-3527) | ||
5 | MIME-Version: 1.0 | ||
6 | Content-Type: text/plain; charset=UTF-8 | ||
7 | Content-Transfer-Encoding: 8bit | ||
8 | |||
9 | Use autofree heap allocation instead. | ||
10 | |||
11 | Fixes: 4f4321c11ff ("usb: use iovecs in USBPacket") | ||
12 | Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> | ||
13 | Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> | ||
14 | Tested-by: Philippe Mathieu-Daudé <philmd@redhat.com> | ||
15 | Message-Id: <20210503132915.2335822-3-kraxel@redhat.com> | ||
16 | |||
17 | Upstream-Status: Backport | ||
18 | https://gitlab.com/qemu-project/qemu/-/commit/7ec54f9eb62b5d177e30eb8b1cad795a5f8d8986 | ||
19 | CVE: CVE-2021-3527 | ||
20 | Signed-off-by: Chee Yang Lee <chee.yang.lee@intel.com> | ||
21 | |||
22 | --- | ||
23 | hw/usb/redirect.c | 6 +++--- | ||
24 | 1 file changed, 3 insertions(+), 3 deletions(-) | ||
25 | |||
26 | diff --git a/hw/usb/redirect.c b/hw/usb/redirect.c | ||
27 | index 17f06f3417..6a75b0dc4a 100644 | ||
28 | --- a/hw/usb/redirect.c | ||
29 | +++ b/hw/usb/redirect.c | ||
30 | @@ -620,7 +620,7 @@ static void usbredir_handle_iso_data(USBRedirDevice *dev, USBPacket *p, | ||
31 | .endpoint = ep, | ||
32 | .length = p->iov.size | ||
33 | }; | ||
34 | - uint8_t buf[p->iov.size]; | ||
35 | + g_autofree uint8_t *buf = g_malloc(p->iov.size); | ||
36 | /* No id, we look at the ep when receiving a status back */ | ||
37 | usb_packet_copy(p, buf, p->iov.size); | ||
38 | usbredirparser_send_iso_packet(dev->parser, 0, &iso_packet, | ||
39 | @@ -818,7 +818,7 @@ static void usbredir_handle_bulk_data(USBRedirDevice *dev, USBPacket *p, | ||
40 | usbredirparser_send_bulk_packet(dev->parser, p->id, | ||
41 | &bulk_packet, NULL, 0); | ||
42 | } else { | ||
43 | - uint8_t buf[size]; | ||
44 | + g_autofree uint8_t *buf = g_malloc(size); | ||
45 | usb_packet_copy(p, buf, size); | ||
46 | usbredir_log_data(dev, "bulk data out:", buf, size); | ||
47 | usbredirparser_send_bulk_packet(dev->parser, p->id, | ||
48 | @@ -923,7 +923,7 @@ static void usbredir_handle_interrupt_out_data(USBRedirDevice *dev, | ||
49 | USBPacket *p, uint8_t ep) | ||
50 | { | ||
51 | struct usb_redir_interrupt_packet_header interrupt_packet; | ||
52 | - uint8_t buf[p->iov.size]; | ||
53 | + g_autofree uint8_t *buf = g_malloc(p->iov.size); | ||
54 | |||
55 | DPRINTF("interrupt-out ep %02X len %zd id %"PRIu64"\n", ep, | ||
56 | p->iov.size, p->id); | ||
57 | -- | ||
58 | GitLab | ||
59 | |||