https://sourceware.org/bugzilla/show_bug.cgi?id=27628
--- Comment #6 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> --- The master branch has been updated by Nick Alcock <n...@sourceware.org>: https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=86f64bf43f70ecefa9232f5b8621b179dfff52fd commit 86f64bf43f70ecefa9232f5b8621b179dfff52fd Author: Nick Alcock <nick.alc...@oracle.com> Date: Thu Mar 25 16:32:46 2021 +0000 libctf, serialize: functions with no args have a NULL dtd_vlen Every place that accesses a function's dtd_vlen accesses it only if the number of args is nonzero, except the serializer, which always tries to memcpy it. The number of bytes it memcpys in this case is zero, but it is still undefined behaviour to copy zero bytes from a null pointer. So check for this case explicitly. libctf/ChangeLog 2021-03-25 Nick Alcock <nick.alc...@oracle.com> PR libctf/27628 * ctf-serialize.c (ctf_emit_type_sect): Allow for a NULL vlen in CTF_K_FUNCTION types. -- You are receiving this mail because: You are on the CC list for the bug.
