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Re: wget2 | Crash: "free(): double free detected in tcache 2" when using
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From: |
@rockdaboot |
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Subject: |
Re: wget2 | Crash: "free(): double free detected in tcache 2" when using --load-cookies (#650) |
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Date: |
Sun, 07 Jan 2024 11:18:30 +0000 |
Tim Rühsen commented:
https://gitlab.com/gnuwget/wget2/-/issues/650#note_1717194969
Thanks for the report :thumbsup:
The bug has been fixed in c51cc7d7e2543183349b808aa68d9ecfecdb8345.
Interestingly, we have a fuzzer that should have caught this issue. I have to
review the fuzzer code, maybe it doesn't do the expected.
Indeed, at least the fuzz corpora from OSS-Fuzz doesn't cover the code blocks
that trigger this issue:
https://gnuwget.gitlab.io/wget2/fuzz-coverage/builds/gnuwget/wget2/libwget/cookie.c.gcov.html
(see the red lines in cookie_db_load()).
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