1341: [PATCH] Fix potential null pointer dereference in ccmain/paragraphs.cpp #8
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Closed
|
Fixed in commit d8a55d7 |
stweil
referenced
this pull request
in stweil/tesseract
May 20, 2018
The following code caused a crash when Tesseract was compiled with -ftrapv: 1259 int width = right - left; #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007ffff665c231 in __GI_abort () at abort.c:79 #2 0x00007ffff69e34d8 in __subvsi3 () from /lib/x86_64-linux-gnu/libgcc_s.so.1 #3 0x000055555560c1c5 in tesseract::ColPartitionGrid::FindVPartitionPartners (this=0x55555717e3c0, to_the_left=true, part=0x5555571fa380) at ../../../src/textord/colpartitiongrid.cpp:1259 #4 0x000055555560bda0 in tesseract::ColPartitionGrid::FindPartitionPartners (this=0x55555717e3c0) at ../../../src/textord/colpartitiongrid.cpp:1196 #5 0x00005555555f52b6 in tesseract::ColumnFinder::FindBlocks (this=0x55555717e280, pageseg_mode=tesseract::PSM_AUTO, scaled_color=0x0, scaled_factor=-1, input_block=0x555555f91390, photo_mask_pix=0x555555f73300, thresholds_pix=0x555555f76290, grey_pix=0x555555f762e0, pixa_debug=0x7ffff7fc88d8, blocks=0x7fffffffd250, diacritic_blobs=0x7fffffffd330, to_blocks=0x7fffffffd328) at ../../../src/textord/colfind.cpp:431 #6 0x00005555555c240d in tesseract::Tesseract::AutoPageSeg (this=0x7ffff7fa5010, pageseg_mode=tesseract::PSM_AUTO, blocks=0x555555f761d0, to_blocks=0x7fffffffd328, diacritic_blobs=0x7fffffffd330, osd_tess=0x0, osr=0x7fffffffd6d0) at ../../../src/ccmain/pagesegmain.cpp:229 #7 0x00005555555c1ffd in tesseract::Tesseract::SegmentPage (this=0x7ffff7fa5010, input_file=0x555555f7bd90, blocks=0x555555f761d0, osd_tess=0x0, osr=0x7fffffffd6d0) at ../../../src/ccmain/pagesegmain.cpp:141 #8 0x0000555555582540 in tesseract::TessBaseAPI::FindLines (this=0x555555a9a580 <main::api>) at ../../../src/api/baseapi.cpp:2291 #9 0x000055555557ce42 in tesseract::TessBaseAPI::Recognize (this=0x555555a9a580 <main::api>, monitor=0x0) at ../../../src/api/baseapi.cpp:802 Signed-off-by: Stefan Weil <[email protected]>
noahmetzger
pushed a commit
to noahmetzger/tesseract
that referenced
this pull request
Jul 31, 2018
The following code caused a crash when Tesseract was compiled with -ftrapv: 1259 int width = right - left; #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 tesseract-ocr#1 0x00007ffff665c231 in __GI_abort () at abort.c:79 tesseract-ocr#2 0x00007ffff69e34d8 in __subvsi3 () from /lib/x86_64-linux-gnu/libgcc_s.so.1 tesseract-ocr#3 0x000055555560c1c5 in tesseract::ColPartitionGrid::FindVPartitionPartners (this=0x55555717e3c0, to_the_left=true, part=0x5555571fa380) at ../../../src/textord/colpartitiongrid.cpp:1259 tesseract-ocr#4 0x000055555560bda0 in tesseract::ColPartitionGrid::FindPartitionPartners (this=0x55555717e3c0) at ../../../src/textord/colpartitiongrid.cpp:1196 tesseract-ocr#5 0x00005555555f52b6 in tesseract::ColumnFinder::FindBlocks (this=0x55555717e280, pageseg_mode=tesseract::PSM_AUTO, scaled_color=0x0, scaled_factor=-1, input_block=0x555555f91390, photo_mask_pix=0x555555f73300, thresholds_pix=0x555555f76290, grey_pix=0x555555f762e0, pixa_debug=0x7ffff7fc88d8, blocks=0x7fffffffd250, diacritic_blobs=0x7fffffffd330, to_blocks=0x7fffffffd328) at ../../../src/textord/colfind.cpp:431 tesseract-ocr#6 0x00005555555c240d in tesseract::Tesseract::AutoPageSeg (this=0x7ffff7fa5010, pageseg_mode=tesseract::PSM_AUTO, blocks=0x555555f761d0, to_blocks=0x7fffffffd328, diacritic_blobs=0x7fffffffd330, osd_tess=0x0, osr=0x7fffffffd6d0) at ../../../src/ccmain/pagesegmain.cpp:229 tesseract-ocr#7 0x00005555555c1ffd in tesseract::Tesseract::SegmentPage (this=0x7ffff7fa5010, input_file=0x555555f7bd90, blocks=0x555555f761d0, osd_tess=0x0, osr=0x7fffffffd6d0) at ../../../src/ccmain/pagesegmain.cpp:141 tesseract-ocr#8 0x0000555555582540 in tesseract::TessBaseAPI::FindLines (this=0x555555a9a580 <main::api>) at ../../../src/api/baseapi.cpp:2291 tesseract-ocr#9 0x000055555557ce42 in tesseract::TessBaseAPI::Recognize (this=0x555555a9a580 <main::api>, monitor=0x0) at ../../../src/api/baseapi.cpp:802 Signed-off-by: Stefan Weil <[email protected]>
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
https://code.google.com/p/tesseract-ocr/issues/detail?id=1341 (http://web.archive.org/web/20150413012149/https://code.google.com/p/tesseract-ocr/issues/detail?id=1341)