[OE-core] [PATCH 4/5] libav: upgrade to 9.18

Martin Jansa martin.jansa at gmail.com
Thu May 28 08:47:06 UTC 2015


On Thu, May 28, 2015 at 04:18:24PM +0800, Kang Kai wrote:
> On 2015年05月28日 15:14, Jussi Kukkonen wrote:
> > On 28 May 2015 at 04:26, Kai Kang <kai.kang at windriver.com> wrote:
> >> Upgrade libav from version 9.16 to 9.18. Remove unused var INC_PR and
> >> backport patch to fix CVE-2014-9676.
> > I'm sorry I didn't ask this in the original discussion but... Is there
> > a good reason for keeping 9.x in oe-core if we're bringing in 11.x
> > (instead of either dropping 9.x or moving it to meta-oe)?
> >
> > I haven't found the API changes between 9 and 11 to be so large that
> > they would warrant keeping two versions. Admittedly I'm not working
> > with libav on daily basis so I might have missed things.
> 
> The original thought is just in case someone may want libav 9. According 
> to release log, series 11
> is
> 
> "Libav 11 is API-, but not ABI-compatible with the previous major
> release."
> 
> So it is ok for us to use libav 11 as default. libav 9 recipe could be removed if no one opposes.
> 
> Ref:
> https://libav.org/releases/libav-11.3.release

Does libav-11 show the same textrel issues? If it's fixed there I'm in favor of dropping libav-9.

from last world build:
gstreamer1.0-libav-1.4.5: ELF binary '/tmp/work/armv5e-oe-linux-gnueabi/gstreamer1.0-libav/1.4.5-r0/packages-split/gstreamer1.0-libav/usr/lib/gstreamer-1.0/libgstlibav.so' has relocations in .text [textrel]
gstreamer1.0-libav-1.4.5: ELF binary '/tmp/work/i586-oe-linux/gstreamer1.0-libav/1.4.5-r0/packages-split/gstreamer1.0-libav/usr/lib/gstreamer-1.0/libgstlibav.so' has relocations in .text [textrel]
libav-9.16: ELF binary '/tmp/work/armv5e-oe-linux-gnueabi/libav/9.16-r0/packages-split/libavcodec/usr/lib/libavcodec.so.54.35.0' has relocations in .text [textrel]
libav-9.16: ELF binary '/tmp/work/i586-oe-linux/libav/9.16-r0/packages-split/libavcodec/usr/lib/libavcodec.so.54.35.0' has relocations in .text [textrel]
libav-9.16: ELF binary '/tmp/work/i586-oe-linux/libav/9.16-r0/packages-split/libavdevice/usr/lib/libavdevice.so.53.2.0' has relocations in .text [textrel]
libav-9.16: ELF binary '/tmp/work/i586-oe-linux/libav/9.16-r0/packages-split/libavfilter/usr/lib/libavfilter.so.3.3.0' has relocations in .text [textrel]
libav-9.16: ELF binary '/tmp/work/i586-oe-linux/libav/9.16-r0/packages-split/libavformat/usr/lib/libavformat.so.54.20.4' has relocations in .text [textrel]
libav-9.16: ELF binary '/tmp/work/i586-oe-linux/libav/9.16-r0/packages-split/libavresample/usr/lib/libavresample.so.1.0.1' has relocations in .text [textrel]
libav-9.16: ELF binary '/tmp/work/i586-oe-linux/libav/9.16-r0/packages-split/libavutil/usr/lib/libavutil.so.52.3.0' has relocations in .text [textrel]
libav-9.16: ELF binary '/tmp/work/i586-oe-linux/libav/9.16-r0/packages-split/libswscale/usr/lib/libswscale.so.2.1.1' has relocations in .text [textrel]
libpostproc-52.3.0+gitAUTOINC+811db3b957: ELF binary '/tmp/work/armv5te-oe-linux-gnueabi/libpostproc/52.3.0+gitAUTOINC+811db3b957-r0/packages-split/libpostproc/usr/lib/libpostproc.so.52.3.0' has relocations in .text [textrel]
libpostproc-52.3.0+gitAUTOINC+811db3b957: ELF binary '/tmp/work/i586-oe-linux/libpostproc/52.3.0+gitAUTOINC+811db3b957-r0/packages-split/libpostproc/usr/lib/libpostproc.so.52.3.0' has relocations in .text [textrel]

> >> Signed-off-by: Kai Kang <kai.kang at windriver.com>
> >> ---
> >>   meta/recipes-multimedia/libav/libav.inc            |  2 -
> >>   .../libav/libav/libav-fix-CVE-2014-9676.patch      | 98 ++++++++++++++++++++++
> >>   meta/recipes-multimedia/libav/libav_9.16.bb        |  4 -
> >>   meta/recipes-multimedia/libav/libav_9.18.bb        |  6 ++
> >>   4 files changed, 104 insertions(+), 6 deletions(-)
> >>   create mode 100644 meta/recipes-multimedia/libav/libav/libav-fix-CVE-2014-9676.patch
> >>   delete mode 100644 meta/recipes-multimedia/libav/libav_9.16.bb
> >>   create mode 100644 meta/recipes-multimedia/libav/libav_9.18.bb
> >>
> >> diff --git a/meta/recipes-multimedia/libav/libav.inc b/meta/recipes-multimedia/libav/libav.inc
> >> index cac836f..6ef273b 100644
> >> --- a/meta/recipes-multimedia/libav/libav.inc
> >> +++ b/meta/recipes-multimedia/libav/libav.inc
> >> @@ -24,8 +24,6 @@ ARM_INSTRUCTION_SET = "arm"
> >>
> >>   DEPENDS = "alsa-lib zlib libogg yasm-native"
> >>
> >> -INC_PR = "r8"
> >> -
> >>   inherit autotools pkgconfig
> >>
> >>   B = "${S}/build.${HOST_SYS}.${TARGET_SYS}"
> >> diff --git a/meta/recipes-multimedia/libav/libav/libav-fix-CVE-2014-9676.patch b/meta/recipes-multimedia/libav/libav/libav-fix-CVE-2014-9676.patch
> >> new file mode 100644
> >> index 0000000..1e31caa
> >> --- /dev/null
> >> +++ b/meta/recipes-multimedia/libav/libav/libav-fix-CVE-2014-9676.patch
> >> @@ -0,0 +1,98 @@
> >> +Upstream-Status: Backport
> >> +
> >> +Backport patch to fix CVE-2014-9676.
> >> +
> >> +https://security-tracker.debian.org/tracker/CVE-2014-9676
> >> +https://git.libav.org/?p=libav.git;a=commit;h=b3f04657368a32a9903406395f865e230b1de348
> >> +
> >> +Signed-off-by: Kai Kang <kai.kang at windriver.com>
> >> +---
> >> +From b3f04657368a32a9903406395f865e230b1de348 Mon Sep 17 00:00:00 2001
> >> +From: Luca Barbato <lu_zero at gentoo.org>
> >> +Date: Mon, 5 Jan 2015 10:40:41 +0100
> >> +Subject: [PATCH] segment: Fix the failure paths
> >> +
> >> +A failure in segment_end() or segment_start() would lead to freeing
> >> +a dangling pointer and in general further calls to seg_write_packet()
> >> +or to seg_write_trailer() would have the same faulty behaviour.
> >> +
> >> +CC: libav-stable at libav.org
> >> +Reported-By: luodalongde at gmail.com
> >> +---
> >> + libavformat/segment.c | 32 ++++++++++++++++++++------------
> >> + 1 file changed, 20 insertions(+), 12 deletions(-)
> >> +
> >> +diff --git a/libavformat/segment.c b/libavformat/segment.c
> >> +index 52da6b9..bcfd1f9 100644
> >> +--- a/libavformat/segment.c
> >> ++++ b/libavformat/segment.c
> >> +@@ -184,6 +184,13 @@ static void close_null_ctx(AVIOContext *pb)
> >> +     av_free(pb);
> >> + }
> >> +
> >> ++static void seg_free_context(SegmentContext *seg)
> >> ++{
> >> ++    avio_closep(&seg->pb);
> >> ++    avformat_free_context(seg->avf);
> >> ++    seg->avf = NULL;
> >> ++}
> >> ++
> >> + static int seg_write_header(AVFormatContext *s)
> >> + {
> >> +     SegmentContext *seg = s->priv_data;
> >> +@@ -265,12 +272,9 @@ static int seg_write_header(AVFormatContext *s)
> >> +     }
> >> +
> >> + fail:
> >> +-    if (ret) {
> >> +-        if (seg->list)
> >> +-            avio_close(seg->pb);
> >> +-        if (seg->avf)
> >> +-            avformat_free_context(seg->avf);
> >> +-    }
> >> ++    if (ret < 0)
> >> ++        seg_free_context(seg);
> >> ++
> >> +     return ret;
> >> + }
> >> +
> >> +@@ -282,6 +286,9 @@ static int seg_write_packet(AVFormatContext *s, AVPacket *pkt)
> >> +     int64_t end_pts = seg->recording_time * seg->number;
> >> +     int ret, can_split = 1;
> >> +
> >> ++    if (!oc)
> >> ++        return AVERROR(EINVAL);
> >> ++
> >> +     if (seg->has_video) {
> >> +         can_split = st->codec->codec_type == AVMEDIA_TYPE_VIDEO &&
> >> +                     pkt->flags & AV_PKT_FLAG_KEY;
> >> +@@ -322,11 +329,8 @@ static int seg_write_packet(AVFormatContext *s, AVPacket *pkt)
> >> +     ret = ff_write_chained(oc, pkt->stream_index, pkt, s);
> >> +
> >> + fail:
> >> +-    if (ret < 0) {
> >> +-        if (seg->list)
> >> +-            avio_close(seg->pb);
> >> +-        avformat_free_context(oc);
> >> +-    }
> >> ++    if (ret < 0)
> >> ++        seg_free_context(seg);
> >> +
> >> +     return ret;
> >> + }
> >> +@@ -335,7 +339,11 @@ static int seg_write_trailer(struct AVFormatContext *s)
> >> + {
> >> +     SegmentContext *seg = s->priv_data;
> >> +     AVFormatContext *oc = seg->avf;
> >> +-    int ret;
> >> ++    int ret = 0;
> >> ++
> >> ++    if (!oc)
> >> ++        goto fail;
> >> ++
> >> +     if (!seg->write_header_trailer) {
> >> +         if ((ret = segment_end(oc, 0)) < 0)
> >> +             goto fail;
> >> +--
> >> +2.4.1.314.g9532ead
> >> +
> >> diff --git a/meta/recipes-multimedia/libav/libav_9.16.bb b/meta/recipes-multimedia/libav/libav_9.16.bb
> >> deleted file mode 100644
> >> index 79ff3f8..0000000
> >> --- a/meta/recipes-multimedia/libav/libav_9.16.bb
> >> +++ /dev/null
> >> @@ -1,4 +0,0 @@
> >> -require libav.inc
> >> -
> >> -SRC_URI[md5sum] = "7b44b75cec24b8e7545e5029e76917e0"
> >> -SRC_URI[sha256sum] = "ca846473b0b8ed8e3404c52e5e92df6d35cb5fa487eec498525de3ffda4367a0"
> >> diff --git a/meta/recipes-multimedia/libav/libav_9.18.bb b/meta/recipes-multimedia/libav/libav_9.18.bb
> >> new file mode 100644
> >> index 0000000..210a649
> >> --- /dev/null
> >> +++ b/meta/recipes-multimedia/libav/libav_9.18.bb
> >> @@ -0,0 +1,6 @@
> >> +require libav.inc
> >> +
> >> +SRC_URI[md5sum] = "75e838068a75fb88e1b4ea0546bc16f0"
> >> +SRC_URI[sha256sum] = "0875e835da683eef1a7bac75e1884634194149d7479d1538ba9fbe1614d066d7"
> >> +
> >> +SRC_URI += "file://libav-fix-CVE-2014-9676.patch"
> >> --
> >> 1.9.1
> >>
> >> --
> >> _______________________________________________
> >> Openembedded-core mailing list
> >> Openembedded-core at lists.openembedded.org
> >> http://lists.openembedded.org/mailman/listinfo/openembedded-core
> >
> 
> 
> -- 
> Regards,
> Neil | Kai Kang
> 
> -- 
> _______________________________________________
> Openembedded-core mailing list
> Openembedded-core at lists.openembedded.org
> http://lists.openembedded.org/mailman/listinfo/openembedded-core

-- 
Martin 'JaMa' Jansa     jabber: Martin.Jansa at gmail.com



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