mmenke @ could you please look into this.please feel free to re-assigned back if needed. thanks in advance !

I can't reproduce this locally, on a fresh checkout - that input seems to run fine.  args.gn contains the following:

is_debug = true
use_libfuzzer = true
is_asan = true
enable_nacl = false
proprietary_codecs = true
ffmpeg_branding = "ChromeOS"
use_goma = true

Running with:  ./out/afl/net_http_proxy_client_socket_fuzzer ../fuzz-3-net_http_proxy_client_socket_fuzzer -runs=1000

Tried just 1 run as well.  Am I missing something?  If not, I think I'm going to need more to go one.  The report claims it's a debug build, so maybe a symbolized call stack?

Nevermind, turned out I had a local change that broke it (Thought I reverted relevant changes, but had more than I thought)

[asanka]:  Mind taking this?  I don't understand the DCHECK that's failing (the "DCHECK(identity_.invalid || credentials.Empty())" in "HttpAuthController::ResetAuth()")

ClusterFuzz has detected this issue as fixed in range 433648:433747.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5557756334702592

Fuzzer: libfuzzer_net_http_proxy_client_socket_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

Crash Type: UNKNOWN
Crash Address: 0x03e9000041fc
Crash State:
  base::debug::DebugBreak
  net::HttpAuthController::ResetAuth
  _start
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan_debug&range=395717:395804
Fixed: https://cluster-fuzz.appspot.com/revisions?job=libfuzzer_chrome_asan_debug&range=433648:433747

Minimized Testcase (0.23 Kb):
Download: https://cluster-fuzz.appspot.com/download/AMIfv96ejVD61aXSBrL2fFwHcCAY9J971SQp7yX7C7bkw0bAZJETuB7sFs2NwoKsfq1sOCZ8UFxm8YEjQTMrfhQGeFMtl3_f0HPDlI-GzoKHqGjxddXkbvjMQoZBAjL4KCnDpOY9p6zZekcs9eMGoK7Qqd0PUtE4-w?testcase_id=5557756334702592
HTTP/5.0 407
Proxy-�uthentihatHTTP 407
Proxy-Authenticate:Digest nonce=0C(Basic
Content-Length:00

 HTHTTP 407
Proxy-Authenticate:Digest stale=true,"H*HTTP/407
Proxy-Authenticate:Digest noNce=��!0die:K/g

 401*HTTP/ 407
Conteit-LeN


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