ALS spec:
11.6.3.1.1 Quantization and encoding of parcor coefficients
...
In all cases the resulting quantized values ak are restricted to the range [-64,63].
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
(cherry picked from commit 5b051ec3bd)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Values that fail this check will cause failure of decode_rice()
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
(cherry picked from commit 23aae62c2c)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Our decoder does not support changing w/h.
Fixes CVE-2012-2777 and CVE-2012-2784.
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit c20a696306)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This prevents writing into a too small array if some parameters changed
without the tile being reallocated.
Fixes CVE-2012-2794
CC:libav-stable@libav.org
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 2d09cdbaf2)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This prevents writing into a too small array if some parameters changed
without the tile being reallocated.
Based on a patch by Michael Niedermayer <michaelni@gmx.at>
Fixes CVE-2012-2800
CC:libav-stable@libav.org
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
(cherry picked from commit ae3da0ae55)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Protects from overreads.
Signed-off-by: Paul B Mahol <onemda@gmail.com>
Signed-off-by: Ronald S. Bultje <rsbultje@gmail.com>
(cherry picked from commit 29b0d94b43)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
The decode function assumes that the video will have those dimensions.
Fixes CVE-2012-2801
CC:libav-stable@libav.org
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 85f477935c)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
If there is an error during frame parsing, but AVCodecContext.channels was
changed and AC3DecodeContext.out_channels was set previously, the two may not
match.
Fixes CVE-2012-2802
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
CC: libav-stable@libav.org
(cherry picked from commit 56b6a43056)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Duplicate values in this vector are explicitly banned by the Vorbis I spec
and cause divide-by-zero crashes later on.
(cherry picked from commit ecf79c4d3e)
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
This fixes a double-free crash if lists are the same due to the two
merge_ref() calls at the end of the (useless) merging that happens.
Signed-off-by: Anton Khirnov <anton@khirnov.net>
(cherry picked from commit 11b6a82412)
Conflicts:
libavfilter/formats.c
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
Correct handling of errors to prevent hags or crashes is very complex
otherwise.
The frame initializing is also moved from decode_slice() to
decode_frame() for clarity.
(cherry picked from commit 73ad4471a4)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit e96b4a53df)
Conflicts:
libavcodec/4xm.c
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Fixes out of array write in quant_cof.
Also make sure no invalid opt_order stays in the context.
Fixes CVE-2012-2775
Found-by: Mateusz "j00ru" Jurczyk and Gynvael Coldwind
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Signed-off-by: Justin Ruggles <justin.ruggles@gmail.com>
(cherry picked from commit 9853e41aa0)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Fixes infinite loop in FLAC decoding in case of a truncated bitstream due to
the safe bitstream reader returning 0's at the end.
Fixes Bug 310.
CC:libav-stable@libav.org
(cherry picked from commit 4795362660)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
This can easily happen when the caller is using a custom AVIOContext.
Behave as if the filename was an empty string in this case.
CC: libav-stable@libav.org
(cherry picked from commit a5db8e4a1a)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Using ff_mspel_motion assumes that s (a MpegEncContext
poiinter) really is a Wmv2Context.
This fixes crashes in error resilience on vc1/wmv3 videos.
CC: libav-stable@libav.org
Signed-off-by: Martin Storsjö <martin@martin.st>
(cherry picked from commit 18f2d5cb9c)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
The check is bogus since the nuv frameheader is already skipped
and the (decompressed) RTjpeg header is checked.
This reverts commit f6afacdb3b.
CC: libav-stable@libav.org
(cherry picked from commit 110d015ad4)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Gray8 is not considered to be paletted, so this would cause an invalid
write.
Fixes bug 367.
CC: libav-stable@libav.org
(cherry picked from commit 8b78c2969a)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Not all applications (e.g. MPlayer) set block_align, and
when using a different demuxer it might not even be
easily available.
So fall back to selecting mode based on bit rate as before
if block_align has not useful value.
It can't be worse than failing to decode completely.
(cherry picked from commit 1d0d63052b)
CC: libav-stable@libav.org
Signed-off-by: Reinhard Tartler <siretart@tauware.de>
(cherry picked from commit c54e00610f)
Signed-off-by: Anton Khirnov <anton@khirnov.net>
Thilo Borgmann
Mans Rullgard
Michael Niedermayer
Anton Khirnov
Janne Grunau
Kostya Shishkov
Paul B Mahol
Justin Ruggles
Martin Storsjö
Alex Converse
Mina Nagy Zaki
Max Lazarov
Reimar Döffinger