Integer-overflow in blink::ShapeResult::insertRun |
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Issue descriptionDetailed report: https://cluster-fuzz.appspot.com/testcase?key=6268481226145792 Fuzzer: miaubiz_svg_fuzzer Job Type: linux_ubsan_chrome Platform Id: linux Crash Type: Integer-overflow Crash Address: Crash State: blink::ShapeResult::insertRun blink::HarfBuzzShaper::extractShapeResults blink::HarfBuzzShaper::shapeResult Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=379622:379730 Minimized Testcase (2.94 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94MSD4wVDkYaAHe9-jJnjIwXYph8804-iMmZZykbuhvx1_uE2d4HqAh8yA5nJe4sdKkrYXM-2WG7R4mslibiSF3zTZnR5o7f_Oib8gSKtCn45np5Ob_LzNDUqOP05yS6uEmquKWUP2l8qjMoPXWh4cx_dX9MQ?testcase_id=6268481226145792 Filer: brajkumar See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.
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Jul 24 2016
It's not about spacing, but I can have a look. It looks like this is just overflowing in an extreme case and isn't as critical as pri 1 to me.
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Jul 26 2016
The following revision refers to this bug: https://chromium.googlesource.com/chromium/src.git/+/17fe9abaa3e964184be9940b0b8630940785a788 commit 17fe9abaa3e964184be9940b0b8630940785a788 Author: kojii <kojii@chromium.org> Date: Tue Jul 26 09:11:51 2016 Avoid integer-overflow in hb_glyph_position_t.y_advance This patch avoids integer-overflow when hb_glyph_position_t.y_advance is LONG_MIN. BUG= 630227 Review-Url: https://codereview.chromium.org/2176053002 Cr-Commit-Position: refs/heads/master@{#407744} [modify] https://crrev.com/17fe9abaa3e964184be9940b0b8630940785a788/third_party/WebKit/Source/platform/fonts/shaping/ShapeResult.cpp
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Aug 3 2016
ClusterFuzz has detected this issue as fixed in range 407167:409418. Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6268481226145792 Fuzzer: miaubiz_svg_fuzzer Job Type: linux_ubsan_chrome Platform Id: linux Crash Type: Integer-overflow Crash Address: Crash State: blink::ShapeResult::insertRun blink::HarfBuzzShaper::extractShapeResults blink::HarfBuzzShaper::shapeResult Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=379622:379730 Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=407167:409418 Minimized Testcase (2.94 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94MSD4wVDkYaAHe9-jJnjIwXYph8804-iMmZZykbuhvx1_uE2d4HqAh8yA5nJe4sdKkrYXM-2WG7R4mslibiSF3zTZnR5o7f_Oib8gSKtCn45np5Ob_LzNDUqOP05yS6uEmquKWUP2l8qjMoPXWh4cx_dX9MQ?testcase_id=6268481226145792 See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information. If you suspect that the result above is incorrect, try re-doing that job on the test case report page.
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Aug 3 2016
ClusterFuzz testcase is verified as fixed, closing issue. If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.
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Nov 22 2016
Removing EditIssue view restrictions from ClusterFuzz filed bugs. If you believe that this issue should still be restricted, please reapply the label. For more details visit https://www.chromium.org/issue-tracking/autotriage - Your friendly Sheriffbot |
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Comment 1 by brajkumar@chromium.org
, Jul 21 2016Owner: kojii@chromium.org
Status: Assigned (was: Untriaged)