Re: [PATCH] _rl_isearch_cleanup: avoid nested execution

[Chet Ramey]

On 8/20/25 1:45 PM, penguin p wrote:

> https://cgit.git.savannah.gnu.org/cgit/bash.git/?h=devel <https:// cgit.git.savannah.gnu.org/cgit/bash.git/?h=devel>

I pressed so hard I got this error
```
This is workbench@ArchLinux: ~/works/bash
$ ^C
This is workbench@ArchLinux: ~/works/bash
$ ^C
This is workbench@ArchLinux: ~/works/bash

Sorry, I am not able to build using the Mac, so I go into arch linux then build and tested over there.

What's the exact key sequence you're inputting, and are you still sending
ESC after ^C from your keyboard config? (And why do you do that?)

I assume you're typing ^R^C and your keyboard is sending ^R^C^[, right?

=================================================================

WRITE of size 4 at 0x7c315f7e217c thread T0

==1078506==ERROR: AddressSanitizer: heap-use-after-free on address 0x7c315f7e217c at pc 0x55bc1d03b545 bp 0x7ffdbdb3c920 sp 0x7ffdbdb3c910     #0 0x55bc1d03b544 in _rl_search_getchar /home/arch/works/bash/lib/ readline/isearch.c:322

This is probably the same issue Grisha identified initially: handling
SIGINT in rl_read_key ends up invalidating the search context, and then
rl_read_key returns -1, which _rl_search_getchar tries to assign to
cxt->c_lastc. But I'd like to be able to reproduce it.

./parse.y:501.23-27: symbol YYEOF is used, but is not defined as a token and has no rules

This means your bison is too old. configure should have told you.

Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    c...@case.edu    http://tiswww.cwru.edu/~chet/

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