Momoko Shiraishi <[email protected]> writes:
> ### poc file
> ```yacc
> %poc p[
>
> %%
> ```
> ## Output
> ### ASanLog
>
> ```
> =================================================================
> ==8983==ERROR: AddressSanitizer: SEGV on unknown address 0x000000000000 (pc
> 0x575f010633b5 bp 0x7ffc35704cf0 sp 0x7ffc35704ba0 T0)
> ==8983==The signal is caused by a READ memory access.
> ==8983==Hint: address points to the zero page.
> #0 0x575f010633b5 in quotearg_buffer_restyled lib/quotearg.c:393
> #1 0x575f01064175 in quotearg_n_options lib/quotearg.c:899
> #2 0x575f010645f1 in quotearg_n_style lib/quotearg.c:950
> #3 0x575f00f89bd6 in boundary_print src/location.c:149
> #4 0x575f00f89dcd in location_print src/location.c:164
> #5 0x575f00fc6b35 in yy_symbol_print src/parse-gram.c:1390
> #6 0x575f00fcfcf3 in gram_parse src/parse-gram.c:3099
> #7 0x575f00fe9753 in reader src/reader.c:766
> #8 0x575f00f92b6a in main src/main.c:118
> #9 0x702b6e1c0d8f in __libc_start_call_main
> ../sysdeps/nptl/libc_start_call_main.h:58
> #10 0x702b6e1c0e3f in __libc_start_main_impl ../csu/libc-start.c:392
> #11 0x575f00f47594 in _start (/usr/local/bin/bison+0x36594)
>
> AddressSanitizer can not provide additional info.
> SUMMARY: AddressSanitizer: SEGV lib/quotearg.c:393 in quotearg_buffer_restyled
> ==8983==ABORTING
> ```
This doesn't occur for me from the git repository or bison-3.8.2. I see
the following, using your './configure' invocation:
$ ./src/bison ~/input
/home/collin/input:1.1-4: error: invalid directive: ‘%poc’
1 | %poc p[
| ^~~~
/home/collin/input:3.1-2: error: invalid characters in bracketed name: ‘%%’
3 | %%
| ^~
/home/collin/input:1.7-4.0: error: missing ‘]’ at end of file
1 | %poc p[
| ^
/home/collin/input:4: error: invalid character: ‘]’
Is this another AI report like the previous ones [1][2]? The formatting
looks suspiciously similar...
Collin
[1] https://lists.gnu.org/archive/html/bug-bison/2025-07/msg00009.html
[2] https://lists.gnu.org/archive/html/bug-bison/2025-07/msg00008.html
