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Reference Info: 490291763 binutils:fuzz_as: Use-of-uninitialized-value in subseg_set_rest 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-Memory-MemorySanitizer retention: Component default Project: binutils Reported: Mar 6, 2026 [email protected] added comment #1: Detailed Report: https://oss-fuzz.com/testcase?key=4571825899372544 Project: binutils Fuzzing Engine: libFuzzer Fuzz Target: fuzz_as Job Type: libfuzzer_msan_binutils Platform Id: linux Crash Type: Use-of-uninitialized-value Crash Address: Crash State: subseg_set_rest subseg_new gas_init Sanitizer: memory (MSAN) Recommended Security Severity: Medium Regressed: https://oss-fuzz.com/revisions?job=libfuzzer_msan_binutils&range=202603040620:202603050637 Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4571825899372544 Issue filed automatically. See https://google.github.io/oss-fuzz/advanced-topics/reproducing for instructions to reproduce this bug locally. When you fix this bug, please * mention the fix revision(s). * state whether the bug was a short-lived regression or an old bug in any stable releases. * add any other useful information. This information can help downstream consumers. If you need to contact the OSS-Fuzz team with a question, concern, or any other feedback, please file an issue at https://github.com/google/oss-fuzz/issues. Comments on individual Monorail issues are not monitored. 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. Generated by Google IssueTracker notification system.
