Hi, On Wed, Mar 16, 2022 at 02:58:26PM -0700, ClusterFuzz-External via monorail via Elfutils-devel wrote: > Status: New > Owner: ---- > CC: elfut...@sourceware.org, evv...@gmail.com, izz...@google.com > Labels: ClusterFuzz Reproducible Stability-UndefinedBehaviorSanitizer > Engine-libfuzzer OS-Linux Proj-elfutils Reported-2022-03-16 > Type: Bug > > New issue 45619 by ClusterFuzz-External: elfutils:fuzz-elf-get-sections: > Misaligned-address in elf_cvt_Verdef > https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=45619 > > Detailed Report: https://oss-fuzz.com/testcase?key=5857986591981568
Anyone any idea how to replicate this? The detailed report appears to require some kind of login. > Project: elfutils > Fuzzing Engine: libFuzzer > Fuzz Target: fuzz-elf-get-sections > Job Type: libfuzzer_ubsan_elfutils > Platform Id: linux Where does this "fuzz-elf-get-sections" target come from? > Crash Type: Misaligned-address > Crash Address: > Crash State: > elf_cvt_Verdef > __libelf_set_data_list_rdlock > __elf_getdata_rdlock > > Sanitizer: undefined (UBSAN) > > Regressed: > https://oss-fuzz.com/revisions?job=libfuzzer_ubsan_elfutils&range=202203160607:202203161200 > > Reproducer Testcase: > https://oss-fuzz.com/download?testcase_id=5857986591981568 This testcase seems to have no section headers, so it is unclear how to get to the above crash state. Cheers, Mark
