Bug: Issue 53925 in oss-fuzz: assimp:assimp_fuzzer: Floating-point-exception in Assimp::MDLImporter::InternReadFile_Quake1

Status: New
Owner: ----
CC: kim.k...@[googlemail.com](http://googlemail.com/)
Labels: Restrict-View-Commit ClusterFuzz Stability-Memory-AddressSanitizer Reproducible Engine-libfuzzer OS-Linux Proj-assimp Reported-2022-12-02
Type: Bug

New issue 53925 by ClusterFuzz-External: assimp:assimp_fuzzer: Floating-point-exception in Assimp::MDLImporter::InternReadFile_Quake1
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=53925

Detailed Report: https://oss-fuzz.com/testcase?key=4988099354820608

Project: assimp
Fuzzing Engine: libFuzzer
Fuzz Target: assimp_fuzzer
Job Type: libfuzzer_asan_assimp
Platform Id: linux

Crash Type: Floating-point-exception
Crash Address:
Crash State:
Assimp::MDLImporter::InternReadFile_Quake1
Assimp::MDLImporter::InternReadFile
Assimp::BaseImporter::ReadFile

Sanitizer: address (ASAN)

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_asan_assimp&range=202211220607:202211230614

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4988099354820608

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for instructions to reproduce this bug locally.
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* mention the fix revision(s).
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This bug is subject to a 90 day disclosure deadline. If 90 days elapse
without an upstream patch, then the bug report will automatically
become visible to the public.

Download testcase 4988099354820608 and follow the OSS-Fuzz reproduction instructions first. Trace the crash from Assimp::MDLImporter::InternReadFile_Quake1 through the importer entry points, then verify that the testcase no longer produces a floating-point exception and that the reported regression is resolved.

Written by the indexing model from the issue text.