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https://issues.oss-fuzz.com/issues/580268745

Reference Info: 580268745 binutils:fuzz_addr2line: Heap-buffer-overflow in
xtensa_insnbuf_from_chars
component:  Public Trackers > 1362134 > OSS Fuzz
status:  New
reporter:  [email protected]
cc:  [email protected], [email protected], [email protected], and 2 more
collaborators:  [email protected]
type:  Vulnerability
access level:  Limited visibility
priority:  P2
severity:  S2
hotlist:  Reproducible, Stability-LibFuzzer,
Stability-Memory-AddressSanitizer
retention:  Component default
Project:  binutils
Reported:  Oct 31, 2026

[email protected] added comment #1:
Detailed Report: https://oss-fuzz.com/testcase?key=6480110858076160

Project: binutils
Fuzzing Engine: honggfuzz
Fuzz Target: fuzz_addr2line
Job Type: honggfuzz_asan_binutils
Platform Id: linux

Crash Type: Heap-buffer-overflow READ 1
Crash Address: 0x7608a0ee0741
Crash State:
  xtensa_insnbuf_from_chars
  get_expanded_call_opcode
  elf_xtensa_do_asm_simplify

Sanitizer: address (ASAN)

Recommended Security Severity: Medium

Regressed:
https://oss-fuzz.com/revisions?job=honggfuzz_asan_binutils&range=202412181419:202412230607

Reproducer Testcase:
https://oss-fuzz.com/download?testcase_id=6480110858076160

Issue filed automatically.

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