walkero
/
openjpeg
1
0
Fork 0
Code Issues Pull Requests Projects Releases 1 Wiki Activity

Merge pull request #1296 from rouault/workaround_1294 

opj_t2_encode_packet(): avoid out of bound access of #1294, but likely not the proper fix
This commit is contained in:
Even Rouault 2020-12-02 10:05:31 +01:00 committed by GitHub
parent 61ff143ad6 fbd30b064f
commit 630b485f86
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 9 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

9
src/lib/openjp2/t2.c
View File

@ -739,6 +739,15 @@ static OPJ_BOOL opj_t2_encode_packet(OPJ_UINT32 tileno,
continue; continue;
} }
/* Avoid out of bounds access of https://github.com/uclouvain/openjpeg/issues/1294 */
/* but likely not a proper fix. */
if (precno >= res->pw * res->ph) {
opj_event_msg(p_manager, EVT_ERROR,
"opj_t2_encode_packet(): accessing precno=%u >= %u\n",
precno, res->pw * res->ph);
return OPJ_FALSE;
}
prc = &band->precincts[precno]; prc = &band->precincts[precno];
opj_tgt_reset(prc->incltree); opj_tgt_reset(prc->incltree);
opj_tgt_reset(prc->imsbtree); opj_tgt_reset(prc->imsbtree);