https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87350
Jonathan Wakely <redi at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|UNCONFIRMED |NEW
Last reconfirmed| |2018-09-18
Ever confirmed|0 |1
--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Cheng Wen from comment #1)
> Created attachment 44714 [details]
> POC1
You've uploaded two complete HTML pages saved from github, but the mangled name
that crash are just:
_GLOBAL_$D$__tf30___0__
__thunk_0__0__$__H1
$ echo '_GLOBAL_$D$__tf30___0__' | /tmp/binutils/bin/c++filt
ASAN:DEADLYSIGNAL
=================================================================
==6977==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc
0x7f5fbbb47f31 bp 0x7fff4a202c20 sp 0x7fff4a202398 T0)
==6977==The signal is caused by a READ memory access.
==6977==Hint: address points to the zero page.
#0 0x7f5fbbb47f30 in __strlen_avx2 (/lib64/libc.so.6+0x155f30)
#1 0x7f5fbbffd27b (/lib64/libasan.so.4+0x5127b)
#2 0x497e34 in work_stuff_copy_to_from
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:1345
#3 0x49cdd8 in iterate_demangle_function
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:2731
#4 0x49d962 in demangle_prefix
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:2971
#5 0x49d962 in internal_cplus_demangle
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:1253
#6 0x498860 in cplus_demangle
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:918
#7 0x402ea5 in demangle_it (/tmp/binutils/bin/c++filt+0x402ea5)
#8 0x4037af in main (/tmp/binutils/bin/c++filt+0x4037af)
#9 0x7f5fbba12fe9 in __libc_start_main (/lib64/libc.so.6+0x20fe9)
#10 0x402d29 in _start (/tmp/binutils/bin/c++filt+0x402d29)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV (/lib64/libc.so.6+0x155f30) in __strlen_avx2
==6977==ABORTING
wraith:tmp$ echo '__thunk_0__0__$__H1' | /tmp/binutils/bin/c++filt
ASAN:DEADLYSIGNAL
=================================================================
==6981==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc
0x000000497f27 bp 0x7ffc897891e0 sp 0x7ffc89789170 T0)
==6981==The signal is caused by a READ memory access.
==6981==Hint: address points to the zero page.
#0 0x497f26 in work_stuff_copy_to_from
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:1358
#1 0x49cdd8 in iterate_demangle_function
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:2731
#2 0x49d962 in demangle_prefix
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:2971
#3 0x49d962 in internal_cplus_demangle
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:1253
#4 0x498860 in cplus_demangle
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:918
#5 0x402ea5 in demangle_it (/tmp/binutils/bin/c++filt+0x402ea5)
#6 0x4037af in main (/tmp/binutils/bin/c++filt+0x4037af)
#7 0x7ff5a9a18fe9 in __libc_start_main (/lib64/libc.so.6+0x20fe9)
#8 0x402d29 in _start (/tmp/binutils/bin/c++filt+0x402d29)
AddressSanitizer can not provide additional info.
SUMMARY: AddressSanitizer: SEGV
/home/jwakely/src/binutils-gdb/libiberty/cplus-dem.c:1358 in
work_stuff_copy_to_from
==6981==ABORTING
