Re: more ctype(3) lossage - firefox and imgur

[Thomas Klausner <wiz%gatalith.at@localhost>]

On Sat, Jul 26, 2025 at 07:07:26PM +1000, Matthew Green wrote:
> trying to load imgur.com for me crashes that tab with a ctype error:
> 
>    ctype(3) isalnum: invalid input: -8
> 
> i built a firefox with "debug-info" option, but i've failed to get it
> or GDB to give me anything useful yet.  it only crashes the tab and
> none of the threads i can find are the crashed thread (seems gone.)
> 
> anyone else seeing this?  it isn't 100% but usually stays for a while
> when it happens..

I can reproduce this on 10.99.14/x86_64 with firefox-140.0.4

The bracktrace is not very useful:
...
#3  0x000070d5dab5bc53 in ctype_check (c=<optimized out>, func=0x70d5dab89188 <__func__.27> "isalnum") at /usr/src/lib/libc/gen/isctype.c:73
#4  isalnum (c=<optimized out>) at /usr/src/lib/libc/gen/isctype.c:92
#5  0x000070d5d0498f16 in ?? () from /usr/pkg/lib/firefox/libxul.so
...
 Thomas