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Re: Bug Report: Uninitialized Memory Access During SSL Initialization

From: Patrick Schlangen via curl-library <curl-library_at_lists.haxx.se>
Date: Sat, 2 Nov 2024 20:07:15 +0000

> Am 02.11.2024 um 12:17 schrieb Charalampos Mitrodimas via curl-library <curl-library_at_lists.haxx.se>:
> ...
> Uninitialized bytes in __interceptor_fopen64 at offset 0 inside [0x70200000f820, 25)
> ==186400==WARNING: MemorySanitizer: use-of-uninitialized-value
> #0 0x7f8423d11a12 in BIO_new_file (/lib/x86_64-linux-gnu/libcrypto.so.3+0x111a12) (BuildId: 72c05a16f686d285265b1e1a135706b21e0fdf98)

Is your OpenSSL library instrumented as well? Otherwise this might be a false positive. See: https://clang.llvm.org/docs/MemorySanitizer.html#handling-external-code

Best,

Patrick
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Received on 2024-11-02