https://sourceware.org/bugzilla/show_bug.cgi?id=28720
--- Comment #14 from Mark Wielaard <mark at klomp dot org> --- (In reply to Evgeny Vereshchagin from comment #3) > $ UBSAN_OPTIONS=print_stacktrace=1:print_summary=1:halt_on_error=1 > LD_LIBRARY_PATH="./libdw;./libelf" ./src/stack --core > SIGABRT.PC.7fffe4f4e84c.STACK.1976b2f3ff.CODE.-6.ADDR.0.INSTR.mov____%eax, > %ebp.fuzz > gelf_xlate.h:48:1: runtime error: member access within misaligned address > 0x7f0817719077 for type 'struct Elf32_Dyn', which requires 4 byte alignment > 0x7f0817719077: note: pointer points here > 00 10 00 00 00 00 00 00 00 00 02 01 00 00 00 00 00 00 7f 45 46 4c 46 00 > 00 01 01 00 01 00 08 00 > ^ > #0 0x7f0822689542 in Elf32_cvt_Dyn > /home/vagrant/elfutils/libelf/gelf_xlate.h:48 > #1 0x7f082268835e in elf32_xlatetom > /home/vagrant/elfutils/libelf/elf32_xlatetom.c:104 > #2 0x7f0819563307 in dwfl_segment_report_module > /home/vagrant/elfutils/libdwfl/dwfl_segment_report_module.c:848 > #3 0x7f081956c06c in _new.dwfl_core_file_report > /home/vagrant/elfutils/libdwfl/core-file.c:563 > #4 0x4053f7 in parse_opt /home/vagrant/elfutils/src/stack.c:595 > #5 0x7f0818721471 in argp_parse (/lib64/libc.so.6+0x11e471) > #6 0x404b39 in main /home/vagrant/elfutils/src/stack.c:695 > #7 0x7f081863055f in __libc_start_call_main (/lib64/libc.so.6+0x2d55f) > #8 0x7f081863060b in __libc_start_main_impl (/lib64/libc.so.6+0x2d60b) > #9 0x404fa4 in _start (/home/vagrant/elfutils/src/stack+0x404fa4) > > SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior gelf_xlate.h:48:1 in > ``` Proposed patch for this issue: https://sourceware.org/pipermail/elfutils-devel/2022q1/004635.html -- You are receiving this mail because: You are on the CC list for the bug.
