https://gcc.gnu.org/bugzilla/show_bug.cgi?id=71445
--- Comment #8 from Adhemerval Zanella <adhemerval.zanella at linaro dot org> --- Indeed I did not take in consideration the versioned issue with interposed wrapper mainly because the idea of the patch was to fix the static compile asserts against newer glibc. I see the runtime issue as separated issue. However regarding the kernel interface, kernel accepts 64-bit msg_iovlen, msg_controllen and cmsg_len; so it is a matter if libsanitizer also want to enforce the POSIX compliance in the syscalls for Linux. One solution is as Jakub suggested is limit the check to 32-bits values, another might be to remove the compiler asserts and use the kernel interface instead of defined POSIX one. I am not sure which is better option.
