Created attachment 116661 [details] reproducer With the attached code, we observe the following: [root@rawhide32 tmp]# gcc -O0 -ggdb -std=c99 test.c -o test [root@rawhide32 tmp]# valgrind ./test ==16919== Memcheck, a memory error detector ==16919== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==16919== Using Valgrind-3.13.0 and LibVEX; rerun with -h for copyright info ==16919== Command: ./test ==16919== ==16919== ==16919== Process terminating with default action of signal 11 (SIGSEGV): dumping core ==16919== General Protection Fault ==16919== at 0x80485B4: main (test.c:23) ==16919== ==16919== HEAP SUMMARY: ==16919== in use at exit: 0 bytes in 0 blocks ==16919== total heap usage: 0 allocs, 0 frees, 0 bytes allocated ==16919== ==16919== All heap blocks were freed -- no leaks are possible ==16919== ==16919== For counts of detected and suppressed errors, rerun with: -v ==16919== ERROR SUMMARY: 0 errors from 0 contexts (suppressed: 0 from 0) Violación de segmento [root@rawhide32 tmp]# rpm -qv glibc gcc glibc-2.27.9000-10.fc29.i686 gcc-8.0.1-0.18.fc29.i686 [root@rawhide32 tmp]# This bug was initially reported downstream to Fedora at https://bugzilla.redhat.com/show_bug.cgi?id=1558107