Issue 46094 in oss-fuzz: elfutils:fuzz-libdwfl: Use-of-uninitialized-value in elf_compress_gnu

Issue 46094 in oss-fuzz: elfutils:fuzz-libdwfl: Use-of-uninitialized-value in elf_compress_gnu

[ClusterFuzz-External via monorail]

Status: New
Owner: ----
CC: elfut...@sourceware.org, da...@adalogics.com, evv...@gmail.com, izzeem@google.com 
Labels: ClusterFuzz Reproducible Stability-Memory-MemorySanitizer Engine-libfuzzer OS-Linux Security_Severity-Medium Proj-elfutils Reported-2022-03-28
Type: Bug-Security

New issue 46094 by ClusterFuzz-External: elfutils:fuzz-libdwfl: Use-of-uninitialized-value in elf_compress_gnu
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46094

Detailed Report: https://oss-fuzz.com/testcase?key=4725021634854912

Project: elfutils
Fuzzing Engine: libFuzzer
Fuzz Target: fuzz-libdwfl
Job Type: libfuzzer_msan_elfutils
Platform Id: linux

Crash Type: Use-of-uninitialized-value
Crash Address: 
Crash State:
  elf_compress_gnu
  check_section
  dwarf_begin_elf
  
Sanitizer: memory (MSAN)

Recommended Security Severity: Medium

Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_elfutils&range=202203161800:202203170000

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4725021634854912

Issue filed automatically.

See https://google.github.io/oss-fuzz/advanced-topics/reproducing for instructions to reproduce this bug locally.
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Issue 46094 in oss-fuzz: elfutils:fuzz-libdwfl: Use-of-uninitialized-value in elf_compress_gnu

[evv… via monorail]

Comment #1 on issue 46094 by evv...@gmail.com: elfutils:fuzz-libdwfl: Use-of-uninitialized-value in elf_compress_gnu
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46094#c1

It was reported in https://sourceware.org/bugzilla/show_bug.cgi?id=29000

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Issue 46094 in oss-fuzz: elfutils:fuzz-libdwfl: Use-of-uninitialized-value in elf_compress_gnu

[ClusterFuzz-External via monorail]

Updates:
	Labels: ClusterFuzz-Verified
	Status: Verified

Comment #2 on issue 46094 by ClusterFuzz-External: elfutils:fuzz-libdwfl: Use-of-uninitialized-value in elf_compress_gnu
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=46094#c2

ClusterFuzz testcase 4725021634854912 is verified as fixed in https://oss-fuzz.com/revisions?job=libfuzzer_msan_elfutils&range=202203300608:202203301200

If this is incorrect, please file a bug on https://github.com/google/oss-fuzz/issues/new

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