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path: root/src/core/SkValidatingReadBuffer.h
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* Refactor read and write buffers.Gravatar commit-bot@chromium.org2014-01-30
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Eliminates SkFlattenable{Read,Write}Buffer, promoting SkOrdered{Read,Write}Buffer a step each in the hierarchy. What used to be this: SkFlattenableWriteBuffer -> SkOrderedWriteBuffer SkFlattenableReadBuffer -> SkOrderedReadBuffer SkFlattenableReadBuffer -> SkValidatingReadBuffer is now SkWriteBuffer SkReadBuffer -> SkValidatingReadBuffer Benefits: - code is simpler, names are less wordy - the generic SkFlattenableFooBuffer code in SkPaint was incorrect; removed - write buffers are completely devirtualized, important for record speed This refactoring was mostly mechanical. You aren't going to find anything interesting in files with less than 10 lines changed. BUG=skia: R=reed@google.com, scroggo@google.com, djsollen@google.com, mtklein@google.com Author: mtklein@chromium.org Review URL: https://codereview.chromium.org/134163010 git-svn-id: http://skia.googlecode.com/svn/trunk@13245 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fixed more fuzzer issuesGravatar commit-bot@chromium.org2013-12-17
| | | | | | | | | | | | | | | | - Added the "isAvailable" function to check how much bytes are remaining in the stream before doing potentially large mallocs. That way, we can signal a bad stream instead of crashing. - Added data validation in SkImageInfo.cpp - Added NULL pointer check in displacement - Modified the fuzzer for randomized bitmap types BUG=328934,329254 R=senorblanco@google.com, senorblanco@chromium.org, reed@google.com, sugoi@google.com Author: sugoi@chromium.org Review URL: https://codereview.chromium.org/116773002 git-svn-id: http://skia.googlecode.com/svn/trunk@12723 2bbb7eff-a529-9590-31e7-b0007b416f81
* Fixed a few places where uninitialized memory could have been readGravatar commit-bot@chromium.org2013-12-06
| | | | | | | | | | | | | Also added early exit in SkImageFilter's constructor to avoid attempting to deserialize all inputs once a bad input has been found. This avoids hanging if a filter pretends to have 1 billion inputs when that's just an error on the number of inputs read by the filter. BUG=326206,326197,326229 R=senorblanco@chromium.org, senorblanco@google.com, reed@google.com, sugoi@google.com Author: sugoi@chromium.org Review URL: https://codereview.chromium.org/106943002 git-svn-id: http://skia.googlecode.com/svn/trunk@12544 2bbb7eff-a529-9590-31e7-b0007b416f81
* Adding error checks to SkRBufferGravatar commit-bot@chromium.org2013-11-08
| | | | | | | | | | | BUG= R=robertphillips@google.com, bsalomon@google.com, reed@google.com Author: sugoi@chromium.org Review URL: https://codereview.chromium.org/61913002 git-svn-id: http://skia.googlecode.com/svn/trunk@12202 2bbb7eff-a529-9590-31e7-b0007b416f81
* Adding size parameter to read array functionsGravatar commit-bot@chromium.org2013-10-31
| | | | | | | | | | | | | | | | | | | In some cases, the allocated array into which the data will be read is using getArrayCount() to allocate itself, which should be safe, but some cases use fixed length arrays or compute the array size before reading, which could overflow if the stream is compromised. To prevent that from happening, I added a check that will verify that the number of bytes to read will not exceed the capacity of the input buffer argument passed to all the read...Array() functions. I chose to use the byte array for this initial version, so that "size" represents the same value across all read...Array() functions, but I could also use the element count, if it is preferred. Note : readPointArray and writePointArray are unused, so I could also remove them BUG= R=reed@google.com, mtklein@google.com, senorblanco@chromium.org Author: sugoi@chromium.org Review URL: https://codereview.chromium.org/37803002 git-svn-id: http://skia.googlecode.com/svn/trunk@12058 2bbb7eff-a529-9590-31e7-b0007b416f81
* Initial error handling codeGravatar commit-bot@chromium.org2013-10-23
| | | | | | | | | | | | | | | | I made it as simple as possible. The impact seems minimal and it should do what's necessary to make this code secure. BUG= Committed: http://code.google.com/p/skia/source/detail?r=11247 R=reed@google.com, scroggo@google.com, djsollen@google.com, sugoi@google.com, bsalomon@google.com, mtklein@google.com, senorblanco@google.com, senorblanco@chromium.org Author: sugoi@chromium.org Review URL: https://codereview.chromium.org/23021015 git-svn-id: http://skia.googlecode.com/svn/trunk@11922 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert 11247, 11250, 11251, 11257, and 11279 to unblock DEPS roll ↵Gravatar robertphillips@google.com2013-09-16
| | | | | | | | | | | | | | (https://codereview.chromium.org/24159002/) 11279 Sanitizing source files in Housekeeper-Nightly - https://code.google.com/p/skia/source/detail?r=11279 11257 Canary build fix - https://codereview.chromium.org/23532068 11251 More warnings as errors fixes - https://code.google.com/p/skia/source/detail?r=11251 11250 Warnings as errors fix - https://code.google.com/p/skia/source/detail?r=11250 11247 Initial error handling code - https://chromiumcodereview.appspot.com/23021015 git-svn-id: http://skia.googlecode.com/svn/trunk@11288 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert the revert of 11247, 11250, 11251 and 11279 (Chrome already relies on ↵Gravatar robertphillips@google.com2013-09-16
| | | | | | changes in r11247) git-svn-id: http://skia.googlecode.com/svn/trunk@11287 2bbb7eff-a529-9590-31e7-b0007b416f81
* Revert 11247, 11250, 11251 and 11279 to unblock DEPS roll ↵Gravatar robertphillips@google.com2013-09-16
| | | | | | | | | | | | | (https://codereview.chromium.org/24159002/) 11279 Sanitizing source files in Housekeeper-Nightly - https://code.google.com/p/skia/source/detail?r=11279 11251 More warnings as errors fixes - https://code.google.com/p/skia/source/detail?r=11251 11250 Warnings as errors fix - https://code.google.com/p/skia/source/detail?r=11250 11247 Initial error handling code - https://chromiumcodereview.appspot.com/23021015 git-svn-id: http://skia.googlecode.com/svn/trunk@11285 2bbb7eff-a529-9590-31e7-b0007b416f81
* Initial error handling codeGravatar commit-bot@chromium.org2013-09-13
I made it as simple as possible. The impact seems minimal and it should do what's necessary to make this code secure. BUG= R=reed@google.com, scroggo@google.com, djsollen@google.com, sugoi@google.com, bsalomon@google.com, mtklein@google.com, senorblanco@google.com, senorblanco@chromium.org Author: sugoi@chromium.org Review URL: https://chromiumcodereview.appspot.com/23021015 git-svn-id: http://skia.googlecode.com/svn/trunk@11247 2bbb7eff-a529-9590-31e7-b0007b416f81