[Bug libdw/28720] UBSan: member access within misaligned address 0x7f6e8d80f142 for type 'struct Elf32_Phdr', which requires 4 byte alignment

[evvers at ya dot ru]

https://sourceware.org/bugzilla/show_bug.cgi?id=28720

--- Comment #16 from Evgeny Vereshchagin <evvers at ya dot ru> ---
I tested both patches with CFLite, AFL++ and hongfuzz for about ten minutes
under ASan/UBSan with the reproducer testcases included in the "seed" corpus. I
also unleashed the latest corpus provided by OSS-Fuzz on the fuzzer and it
found nothing. Looks like both issues are gone for good. Thanks!

FWIW I recently posted patch v4 where AFL/AFL++ is supported as well. I think
with both `--enable-honggfuzz` and `--enable-afl` it should be possible to
integrate it into buildboot smoothly. The patch can be found at
https://patchwork.sourceware.org/project/elfutils/patch/20211226160323.2450838-1-evvers@ya.ru/

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