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Issue 52037 in oss-fuzz: gpsd:FuzzJson: Use-after-poison in json_interna


From: ClusterFuzz-External via monorail
Subject: Issue 52037 in oss-fuzz: gpsd:FuzzJson: Use-after-poison in json_internal_read_object
Date: Sat, 01 Oct 2022 08:39:12 -0700

Status: New
Owner: ----
CC: gpsd-...@nongnu.org, ajsin...@gmail.com, g...@rellim.com
Labels: Restrict-View-Commit ClusterFuzz Stability-Memory-AddressSanitizer Reproducible Stability-AFL OS-Linux Engine-afl Security_Severity-High Reported-2022-10-01 Proj-gpsd
Type: Bug-Security

New issue 52037 by ClusterFuzz-External: gpsd:FuzzJson: Use-after-poison in json_internal_read_object
https://bugs.chromium.org/p/oss-fuzz/issues/detail?id=52037

Detailed Report: https://oss-fuzz.com/testcase?key=4919267284090880

Project: gpsd
Fuzzing Engine: afl
Fuzz Target: FuzzJson
Job Type: afl_asan_gpsd
Platform Id: linux

Crash Type: Use-after-poison READ 1
Crash Address: 0x7f4cc55fd01b
Crash State:
json_internal_read_object
json_error_read
libgps_json_unpack

Sanitizer: address (ASAN)

Recommended Security Severity: High

Crash Revision: https://oss-fuzz.com/revisions?job=afl_asan_gpsd&revision=202210010601

Reproducer Testcase: https://oss-fuzz.com/download?testcase_id=4919267284090880

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.

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