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On 10.11.19 18:33, Orlando Arias wrote: > Greetings, > > On 11/10/19 5:54 AM, Tim Rühsen wrote: >> Yes, I can confirm. Thanks for review ! > > Thank you for checking. Please note that I am not a binutils maintainer > [or reviewer for that matter]. I am just an interested party. Having > said that > >> Returning early on an empty 'name' also fixes another read overflow in >> >> #ifdef HAVE_DOS_BASED_FILE_SYSTEM >> if (name[1] == ':' && IS_DIR_SEPARATOR (name[2])) >> { >> p += 3; >> num_dirs++; >> } >> #endif /* HAVE_DOS_BASED_FILE_SYSTEM */ >> >> Patch v2 appended. >> > > I believe you also need to do something about the ptr_num_dirs that the > caller may work with at some point. It would also be good to check how > this function is called within binutils [and other projects that use > libiberty]. > > Thank you for your time and efforts. Thank you for looking into it :-) The callers of split_directories() check for the return value. If NULL, they 'goto bailout' (cleanup and return), and ptr_num_dirs is definitely not used. Regards, Tim
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