https://gcc.gnu.org/bugzilla/show_bug.cgi?id=87333
Bug ID: 87333
Summary: A stack overflow problem for c++filt
Product: gcc
Version: unknown
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: c++
Assignee: unassigned at gcc dot gnu.org
Reporter: wcventure at 126 dot com
Target Milestone: ---
Created attachment 44704
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=44704&action=edit
c++filt < POC
We have found some stack overflow in c++filt of the latest binutils code base.
Here are the POC files with different kinds of stack overflow.
Please use the “c++filt < POC ” to reproduce the bug.
Please check it and debug it.
Thank you very much.
ASAN output:
(1)binutils-2.31/build/bin$ ./c++filt < POC1
ASAN:DEADLYSIGNAL
=================================================================
==7555==ERROR: AddressSanitizer: stack-overflow on address 0x7fffefbe1f48 (pc
0x0000009566e8 bp 0x7fffefbe2140 sp 0x7fffefbe1f48 T0)
#0 0x9566e7 (/mnt/d/Project/binutils-2.31/build/bin/c++filt+0x9566e7)
#1 0xcccf00 (/mnt/d/Project/binutils-2.31/build/bin/c++filt+0xcccf00)
SUMMARY: AddressSanitizer: stack-overflow
(/mnt/d/Project/binutils-2.31/build/bin/c++filt+0x9566e7)
==7555==ABORTING
Aborted (core dumped)
(2)binutils-2.31/build/bin$ ./c++filt < POC2
ASAN:DEADLYSIGNAL
=================================================================
==14325==ERROR: AddressSanitizer: stack-overflow on address 0x7fffdbe5dff8 (pc
0x7f9d75b4364f bp 0x000000000018 sp 0x7fffdbe5dfe0 T0)
#0 0x7f9d75b4364e (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x10364e)
#1 0x7f9d75b43137 (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x103137)
#2 0x7f9d75a682b1 (/usr/lib/x86_64-linux-gnu/libasan.so.4+0x282b1)
#3 0x7f9d75b1eb5a in __interceptor_malloc
(/usr/lib/x86_64-linux-gnu/libasan.so.4+0xdeb5a)
#4 0x9cad7c in xmalloc xmalloc.c:147
#5 0x8f22e0 in do_arg cplus-dem.c:4330
#6 0x8f2d70 in demangle_args cplus-dem.c:4659
#7 0x8d9039 in demangle_nested_args cplus-dem.c:4713
#8 0x8d9039 in do_type cplus-dem.c:3719
#9 0x8f1d39 in do_arg cplus-dem.c:4332
#10 0x8f2d70 in demangle_args cplus-dem.c:4659
#11 0x8d9039 in demangle_nested_args cplus-dem.c:4713
#12 0x8d9039 in do_type cplus-dem.c:3719
#13 0x8f1d39 in do_arg cplus-dem.c:4332
#14 0x8f2d70 in demangle_args cplus-dem.c:4659
#15 0x8d9039 in demangle_nested_args cplus-dem.c:4713
#16 0x8d9039 in do_type cplus-dem.c:3719
#17 0x8f1d39 in do_arg cplus-dem.c:4332
#18 0x8f2d70 in demangle_args cplus-dem.c:4659
#19 0x8d9039 in demangle_nested_args cplus-dem.c:4713
#20 0x8d9039 in do_type cplus-dem.c:3719
