Created attachment 459103 [details] testcase Build identifier: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; en-US; rv:2.0b2pre) Gecko/20100718 Minefield/4.0b2pre I am testing something new. Currently I can't provide you guys with the exact values/tables. Load the provided html file.
7 years ago
Christoph, any idea what table/offsets you were fuzzing? It would really help tracking down the cause. I'm guessing somewhere in the glyf table but that probably needs to be verified. For OSX cases, could you note when a testcase also crashes in Safari? That helps raise the priority when reporting it to Apple.
John, it is the glyf table. I am currently trying to reduce the testcase. Yes, Safari is affected too.
Logged rdar://8233435 with Apple.
Created attachment 460307 [details] testcase testcase.zip includes: values.txt
This is fixed on trunk and 1.9.2 by the sanitizer blocking the fuzzed font.
Verified fixed in 18.104.22.168 with Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10.6; en-US; rv:22.214.171.124pre) Gecko/20101118 Namoroka/3.6.13pre using testcase. Test no longer crashes as it does in 126.96.36.199. (This was tested on OS X 10.6.5 but crash was verified first.)