Message ID | 20230607073434.69790-1-etemesicaleb@gmail.com |
---|---|
State | Accepted |
Commit | 043a9d09cbcd34c5afdb4c2ff92c06ed8c5d8054 |
Headers | show |
Series | [FFmpeg-devel] avcodec/jpeg2000htdec: Check for invalid magref length. | expand |
Context | Check | Description |
---|---|---|
yinshiyou/make_loongarch64 | success | Make finished |
yinshiyou/make_fate_loongarch64 | success | Make fate finished |
andriy/make_x86 | success | Make finished |
andriy/make_fate_x86 | success | Make fate finished |
Ping on this? On Wed, Jun 7, 2023 at 10:35 AM <etemesicaleb@gmail.com> wrote: > From: caleb <etemesicaleb@gmail.com> > > --- > libavcodec/jpeg2000htdec.c | 18 +++++++++++++----- > 1 file changed, 13 insertions(+), 5 deletions(-) > > diff --git a/libavcodec/jpeg2000htdec.c b/libavcodec/jpeg2000htdec.c > index 51cd96e0f1..4c4e54710d 100644 > --- a/libavcodec/jpeg2000htdec.c > +++ b/libavcodec/jpeg2000htdec.c > @@ -1101,8 +1101,9 @@ static void > jpeg2000_decode_sigprop_segment(Jpeg2000Cblk *cblk, uint16_t width, > * See procedure decodeSigPropMag at Rec. ITU-T T.814, 7.5. > */ > static int > -jpeg2000_decode_magref_segment(Jpeg2000Cblk *cblk, uint16_t width, > uint16_t block_height, uint8_t *magref_segment, > - uint32_t magref_length, uint8_t pLSB, int32_t > *sample_buf, uint8_t *block_states) > +jpeg2000_decode_magref_segment( uint16_t width, uint16_t block_height, > + uint8_t *magref_segment,uint32_t > magref_length, > + uint8_t pLSB, int32_t *sample_buf, > uint8_t *block_states) > { > > StateVars mag_ref = { 0 }; > @@ -1260,10 +1261,17 @@ ff_jpeg2000_decode_htj2k(const > Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c > jpeg2000_decode_sigprop_segment(cblk, width, height, Dref, Lref, > pLSB - 1, sample_buf, block_states); > > - if (cblk->npasses > 2) > - if ((ret = jpeg2000_decode_magref_segment(cblk, width, height, > Dref, Lref, > - pLSB - 1, sample_buf, > block_states)) < 0) > + if (cblk->npasses > 2) { > + > + if (Lref < 2){ > + av_log(s->avctx,AV_LOG_ERROR,"Invalid magnitude refinement > length\n"); > + ret = AVERROR_INVALIDDATA; > + goto free; > + } > + if ((ret = jpeg2000_decode_magref_segment(width, height, Dref, > Lref, > + pLSB - 1, sample_buf, > block_states)) < 0) > goto free; > + } > > pLSB = 31 - M_b; > > -- > 2.40.1 > >
On Mon, Jun 19, 2023 at 06:47:16PM +0300, Caleb Etemesi wrote:
> Ping on this?
will apply
sorry for not looking sooner, i thought someone else would
thx
[...]
diff --git a/libavcodec/jpeg2000htdec.c b/libavcodec/jpeg2000htdec.c index 51cd96e0f1..4c4e54710d 100644 --- a/libavcodec/jpeg2000htdec.c +++ b/libavcodec/jpeg2000htdec.c @@ -1101,8 +1101,9 @@ static void jpeg2000_decode_sigprop_segment(Jpeg2000Cblk *cblk, uint16_t width, * See procedure decodeSigPropMag at Rec. ITU-T T.814, 7.5. */ static int -jpeg2000_decode_magref_segment(Jpeg2000Cblk *cblk, uint16_t width, uint16_t block_height, uint8_t *magref_segment, - uint32_t magref_length, uint8_t pLSB, int32_t *sample_buf, uint8_t *block_states) +jpeg2000_decode_magref_segment( uint16_t width, uint16_t block_height, + uint8_t *magref_segment,uint32_t magref_length, + uint8_t pLSB, int32_t *sample_buf, uint8_t *block_states) { StateVars mag_ref = { 0 }; @@ -1260,10 +1261,17 @@ ff_jpeg2000_decode_htj2k(const Jpeg2000DecoderContext *s, Jpeg2000CodingStyle *c jpeg2000_decode_sigprop_segment(cblk, width, height, Dref, Lref, pLSB - 1, sample_buf, block_states); - if (cblk->npasses > 2) - if ((ret = jpeg2000_decode_magref_segment(cblk, width, height, Dref, Lref, - pLSB - 1, sample_buf, block_states)) < 0) + if (cblk->npasses > 2) { + + if (Lref < 2){ + av_log(s->avctx,AV_LOG_ERROR,"Invalid magnitude refinement length\n"); + ret = AVERROR_INVALIDDATA; + goto free; + } + if ((ret = jpeg2000_decode_magref_segment(width, height, Dref, Lref, + pLSB - 1, sample_buf, block_states)) < 0) goto free; + } pLSB = 31 - M_b;
From: caleb <etemesicaleb@gmail.com> --- libavcodec/jpeg2000htdec.c | 18 +++++++++++++----- 1 file changed, 13 insertions(+), 5 deletions(-)