[Bug gdb/30639] AddressSanitizer: dynamic-stack-buffer-overflow /home/root/sp/Dataset/Binutils/binutils_aflpp/gdb/ada-lang.c:1388:16 in ada_decode[abi:cxx11](char const*, bool, bool)

["sihan2021 at iscas dot ac.cn" <sourceware-bugzilla@sourceware.org>]

https://sourceware.org/bugzilla/show_bug.cgi?id=30639

--- Comment #3 from 熊吉思汗 <sihan2021 at iscas dot ac.cn> ---
(In reply to Keith Seitz from comment #2)
> The supplied executable does not segfault gdb in the reported location:
> 
> $ ./gdb -nx -q --data-directory data-directory UAF_2
> Reading symbols from UAF_2...
> 
> 
> Fatal signal: Segmentation fault
> ----- Backtrace -----
> 0x599064 gdb_internal_backtrace_1
> 	../../src/gdb/bt-utils.c:122
> 0x599107 _Z22gdb_internal_backtracev
> 	../../src/gdb/bt-utils.c:168
> 0x782fd4 handle_fatal_signal
> 	../../src/gdb/event-top.c:889
> 0x783140 handle_sigsegv
> 	../../src/gdb/event-top.c:962
> 0x7fe5a7d7eb6f ???
> 0x6107a5 process_coff_symbol
> 	../../src/gdb/coffread.c:1572
> 0x60f847 coff_symtab_read
> 	../../src/gdb/coffread.c:1190
> 0x60e0dd coff_read_minsyms
> 	../../src/gdb/coffread.c:549
> 0x60e629 coff_symfile_read
> 	../../src/gdb/coffread.c:698
> 0xbd975e read_symbols
> 	../../src/gdb/symfile.c:772
> 0xbd9e0b syms_from_objfile_1
> 	../../src/gdb/symfile.c:966
> 0xbd9ecf syms_from_objfile
> 	../../src/gdb/symfile.c:983
> 0xbda3aa symbol_file_add_with_addrs
> 	../../src/gdb/symfile.c:1086
> 0xbda6eb
> _Z24symbol_file_add_from_bfdRKN3gdb7ref_ptrI3bfd18gdb_bfd_ref_policyEEPKc10en
> um_flagsI16symfile_add_flagEPSt6vectorI14other_sectionsSaISC_EES8_I12objfile_
> flagEP7objfile
> 	../../src/gdb/symfile.c:1166
> 0xbda73a
> _Z15symbol_file_addPKc10enum_flagsI16symfile_add_flagEPSt6vectorI14other_sect
> ionsSaIS5_EES1_I12objfile_flagE
> 	../../src/gdb/symfile.c:1179
> 0xbda7ff symbol_file_add_main_1
> 	../../src/gdb/symfile.c:1203
> 0xbda7a6 _Z20symbol_file_add_mainPKc10enum_flagsI16symfile_add_flagE
> 	../../src/gdb/symfile.c:1194
> 0x90b1d7 symbol_file_add_main_adapter
> 	../../src/gdb/main.c:549
> 0x90b0ed catch_command_errors
> 	../../src/gdb/main.c:518
> 0x90c20e captured_main_1
> 	../../src/gdb/main.c:1203
> 0x90c820 captured_main
> 	../../src/gdb/main.c:1310
> 0x90c8bf _Z8gdb_mainP18captured_main_args
> 	../../src/gdb/main.c:1339
> 0x418c3c main
> 	../../src/gdb/gdb.c:32
> ---------------------
> A fatal error internal to GDB has been detected, further
> debugging is not possible.  GDB will now terminate.
> 
> This is a bug, please report it.  For instructions, see:
> <https://www.gnu.org/software/gdb/bugs/>.
> 
> Segmentation fault (core dumped)
> 
> Did you attach the correct binary to this bug?

To reproduce this bug, please use the following command: gdb -x command.gdb
UAF_2. The necessary files for this command are as follows: command.gdb
(attachment_14968) and UAF_2 (attachment_14967). You can find command.gdb
attached to the first comment, and UAF_2 attached as attachment_14967. If you
encounter any issues during the reproduction process, please feel free to let
me know.

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