Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6639897826033664

Fuzzer: libfuzzer_pdf_codec_gif_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Direct-leak
Crash Address: 
Crash State:
  FX_AllocOrDie
  gif_decode_extension
  gif_get_frame
  

Unminimized Testcase: https://cluster-fuzz.appspot.com/download/AMIfv97epq8ky-4KdLBW9668cNOTplSaFo_yRPwanNKP9rKL7iXSKIOpQo-DQaNl8cYOgeLRV9Ixi4GVpL2Xpo2yv_0kf9Vod1tyTVyx-LIDKmefkh98F_Y3vJzMihSbya7PR4y2m5-fZ4GCO1MTaOzGsMWpn8LJxA?testcase_id=6639897826033664


Filer: mmohammad

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

 Issue 628012  has been merged into this issue.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6610349726105600

Fuzzer: libfuzzer_pdf_codec_gif_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Direct-leak
Crash Address: 
Crash State:
  FX_AllocOrDie
  gif_decode_extension
  gif_get_frame
  

Unminimized Testcase: https://cluster-fuzz.appspot.com/download/AMIfv97eTbhyVI2T1t5N7p30kvFK5dtZpkGPjrz105dD-Pj7amZ-GDl-Q9liHThfmntPAg323Tp6xattqx5Cw2shwxNX94peJkKx8fTAaFk5OrqB7tMGh1Am74EjJ84BiIZRqRENCcmg_wKPyMdY1f01xrp6rZ82eg?testcase_id=6610349726105600


Filer: mmohammad

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

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5938509676544000

Fuzzer: libfuzzer_pdf_codec_gif_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Direct-leak
Crash Address: 
Crash State:
  FX_AllocOrDie
  gif_decode_extension
  gif_get_frame
  

Minimized Testcase (0.00 Kb): https://cluster-fuzz.appspot.com/download/AMIfv96fO5DaA5M87c6J8Q6oEJ4R292Ucd-fESTX54Uhx2CtbyCRvhZqtH7fdhkOeHbhQyMIFQjsLrhqJqgeXwlJbccF1DJuFwaCp6LKIhtsPGI4TiGxZ7AG5M5horMAngRJ0SQE6Grybo0hsU5s4T6wKZBzJAZfcg?testcase_id=5938509676544000

Filer: mmohammad

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

GIF version of  bug 633381 ?

I can't seem to repro this locally, but, all of the test file seem to be either empty or a space. It looks like there is GIF data by the output text, but not in the repo file?

ochang@, is this something weird clusterfuzz is doing?

could you try running this the ASAN_OPTIONS env var set to "detect_leaks=1" ?

i.e. ASAN_OPTIONS=detect_leaks=1 ./pdf_codec_gif_fuzzer ...

And make sure lsan is turned on in GN args.

Locally I have an ASAN/LSAN build:

use_goma = true
is_debug = false
pdf_use_skia = false
pdf_enable_xfa = true
pdf_enable_v8 = true
pdf_is_standalone = true
is_asan = true
is_lsan = true

ASAN_OPTIONS="detect_leaks=1 symbolize=1 external_symbolizer_path=/full/path/to/chrome.git/src/third_party/llvm-build/Release+Asserts/bin/llvm-symbolizer" ./out/lsan/pdfium_test /path/to/test.pdf

With the above gn settings ad the ASANO_OPTIONS I still don't get any leaks when running the example.

Is it expected that the repro file is empty? The text of the report looks like it references GIF data, but the files themselves are empty?

Oh, this is a bug on CF, thanks for pointing that out.

I'll close this bug as WontFix and delete the CF testcase so that it can be filed again properly once it's fixed.

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