4.19-stable patches

added patches:
	media-uvcvideo-skip-parsing-frames-of-type-uvc_vs_undefined-in-uvc_parse_format.patch

diff --git a/queue-4.19/media-uvcvideo-skip-parsing-frames-of-type-uvc_vs_undefined-in-uvc_parse_format.patch b/queue-4.19/media-uvcvideo-skip-parsing-frames-of-type-uvc_vs_undefined-in-uvc_parse_format.patch
new file mode 100644 (file)
index 0000000..729b630
--- /dev/null
+++ b/queue-4.19/media-uvcvideo-skip-parsing-frames-of-type-uvc_vs_undefined-in-uvc_parse_format.patch
@@ -0,0 +1,35 @@
+From ecf2b43018da9579842c774b7f35dbe11b5c38dd Mon Sep 17 00:00:00 2001
+From: Benoit Sevens <bsevens@google.com>
+Date: Thu, 7 Nov 2024 14:22:02 +0000
+Subject: media: uvcvideo: Skip parsing frames of type UVC_VS_UNDEFINED in uvc_parse_format
+
+From: Benoit Sevens <bsevens@google.com>
+
+commit ecf2b43018da9579842c774b7f35dbe11b5c38dd upstream.
+
+This can lead to out of bounds writes since frames of this type were not
+taken into account when calculating the size of the frames buffer in
+uvc_parse_streaming.
+
+Fixes: c0efd232929c ("V4L/DVB (8145a): USB Video Class driver")
+Signed-off-by: Benoit Sevens <bsevens@google.com>
+Cc: stable@vger.kernel.org
+Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
+Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/media/usb/uvc/uvc_driver.c |    2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+--- a/drivers/media/usb/uvc/uvc_driver.c
++++ b/drivers/media/usb/uvc/uvc_driver.c
+@@ -575,7 +575,7 @@ static int uvc_parse_format(struct uvc_d
+       /* Parse the frame descriptors. Only uncompressed, MJPEG and frame
+        * based formats have frame descriptors.
+        */
+-      while (buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE &&
++      while (ftype && buflen > 2 && buffer[1] == USB_DT_CS_INTERFACE &&
+              buffer[2] == ftype) {
+               frame = &format->frame[format->nframes];
+               if (ftype != UVC_VS_FRAME_FRAME_BASED)

diff --git a/queue-4.19/series b/queue-4.19/series
index 187c1c672b548a1435b2626bee2d2b8f8f763880..bbbbf0aae63cdd8bf29a7967850e3c04d79cbc4d 100644 (file)
--- a/queue-4.19/series
+++ b/queue-4.19/series
@@ -26,3 +26,4 @@ nfs-fix-kmsan-warning-in-decode_getfattr_attrs.patch
 btrfs-reinitialize-delayed-ref-list-after-deleting-it-from-the-list.patch
 bonding-gcc13-synchronize-bond_-a-t-lb_xmit-types.patch
 net-bridge-xmit-make-sure-we-have-at-least-eth-header-len-bytes.patch
+media-uvcvideo-skip-parsing-frames-of-type-uvc_vs_undefined-in-uvc_parse_format.patch