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Issue 668857 link

Starred by 2 users

Issue metadata

Status: WontFix
Owner:
Closed: Nov 2016
Cc:
EstimatedDays: ----
NextAction: ----
OS: Linux
Pri: 1
Type: Bug



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Hang in angle_translator_fuzzer

Project Member Reported by ClusterFuzz, Nov 27 2016

Issue description

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5249780411531264

Fuzzer: libfuzzer_angle_translator_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Hang
Crash Address: 
Crash State:
  angle_translator_fuzzer
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan&range=420334:420440

Minimized Testcase (0.25 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv9746Ze9FDUtZ3nY5BjFA9MBOgI51vpB-SJ4xWTVy5GGojAwtUMkFgxEhlR2gLI2f3YJj_N3npQLJdvNSym6vPDZ6F-Gf7vCC4pEWUFm-UxvZ-Pc6R6MkM2sg1eAbY3s4trE0aH8FnxO20vh8RcoqWmXccX6og?testcase_id=5249780411531264
0�I� precision mediump float;
vary*ng mediump float c;
fZoat bC= vec4(5.5, 7, falsaryinvarying mediump vec3 v_coGL_NV_Eords;
struct T {
	mediump float	a;
};
struct S {
	T				b[16382];
};
uniform S s[254];
void main (void)
{
}



Issue filed automatically.

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reproducing.md for more information.
 

Comment 1 by ajha@chromium.org, Nov 27 2016

Labels: Build-Tools M-55
Cc: msrchandra@chromium.org
Labels: Test-Predator-Wrong-CLs
Owner: cwallez@chromium.org
Status: Assigned (was: Untriaged)
Find it did not provide any possible suspects, assigning to the concern owner from the regression range,
https://chromium.googlesource.com/chromium/src/+log/0b4708756ec96cae9a3770943158d519cdeb9fec..de9d174037a46f955c33513ac452e011c0520c27?pretty=fuller

Suspecting the Change list --
https://chromium.googlesource.com/chromium/src/+/98bea5472ae292ed699c3ecdb7512cee1de5904a

@cwallez -- Could you please look into the issue, kindly re-assign if it is not related to your changes.
Thank You.
Status: WontFix (was: Assigned)
Thanks for the heads up.

It makes sense that this takes a long time as ANGLE does work proportional to the size of the uniforms.

Closing as won't fix.
Cc: jmad...@chromium.org oetu...@nvidia.com cwallez@chromium.org
 Issue 675142  has been merged into this issue.

Comment 5 by oetu...@nvidia.com, Apr 13 2017

Corentin, do you think this kind of an issue could be mitigated by counting uniforms and checking them against some limit earlier in the parsing process?
Yes that would fix these issues.
 Issue 711719  has been merged into this issue.

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