From: Daniel Mendler <mail@daniel-mendler.de>
To: Michael Heerdegen <michael_heerdegen@web.de>
Cc: Stefan Monnier <monnier@iro.umontreal.ca>, 62009@debbugs.gnu.org
Subject: bug#62009: 29.0.60; Emacs crashes on setf symbol-name
Date: Tue, 7 Mar 2023 18:08:43 +0100 [thread overview]
Message-ID: <9fcf05e8-506c-6566-e214-2ecf3194b85e@daniel-mendler.de> (raw)
In-Reply-To: <871qm01s6n.fsf@web.de>
On 3/7/23 16:45, Michael Heerdegen wrote:
> Daniel Mendler <mail@daniel-mendler.de> writes:
>
>> Execute the following in the scratch buffer:
>>
>> (setf (aref (symbol-name 'car) 1) ?o)
>>
>> Emacs crashes with a segmentation fault. Is this a well-known issue? I
>> could reproduce the problem on Emacs 27 and 29. Should there be some
>> mechanism to protect the strings of symbols?
>
> Maybe the outcome was something like that we can't protect everybody in
> every case from shooting in the own foot, I don't recall.
Maybe it would be possible to introduce a flag which marks strings as
"frozen"? Then we could ensure that no mutations of such frozen string
happen. Freezing strings (vectors or pairs) may be generally useful
beyond preventing such issues.
Daniel
next prev parent reply other threads:[~2023-03-07 17:08 UTC|newest]
Thread overview: 48+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-03-06 19:26 bug#62009: 29.0.60; Emacs crashes on setf symbol-name Daniel Mendler
2023-03-07 4:40 ` Ruijie Yu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-03-07 15:45 ` Michael Heerdegen
2023-03-07 17:08 ` Daniel Mendler [this message]
2023-03-07 17:39 ` Eli Zaretskii
2023-03-09 21:11 ` Philip Kaludercic
2023-03-10 7:11 ` Eli Zaretskii
2023-03-10 8:45 ` Augusto Stoffel
2023-03-10 8:47 ` Augusto Stoffel
2023-03-10 11:50 ` Eli Zaretskii
2023-03-10 12:00 ` Daniel Mendler
2023-03-10 12:35 ` Eli Zaretskii
2023-03-10 12:45 ` Daniel Mendler
2023-03-10 12:57 ` Eli Zaretskii
2023-03-10 13:08 ` Daniel Mendler
2023-03-10 15:02 ` Eli Zaretskii
2023-03-11 15:16 ` Gregory Heytings
2023-03-11 15:37 ` Eli Zaretskii
2023-03-18 22:46 ` Gregory Heytings
2023-03-19 6:03 ` Eli Zaretskii
2023-03-19 21:20 ` Gregory Heytings
2023-03-10 11:49 ` Eli Zaretskii
2023-03-10 9:40 ` Gregory Heytings
2023-03-10 10:31 ` Daniel Mendler
2023-03-10 10:59 ` Gregory Heytings
2023-03-10 11:09 ` Daniel Mendler
2023-03-10 11:23 ` Augusto Stoffel
2023-03-10 12:09 ` Eli Zaretskii
2023-03-10 11:30 ` Robert Pluim
2023-03-10 11:36 ` Daniel Mendler
2023-03-10 12:13 ` Eli Zaretskii
2023-03-10 12:24 ` Daniel Mendler
2023-03-10 22:01 ` Dmitry Gutov
2023-03-10 11:57 ` Gregory Heytings
2023-03-10 12:12 ` Eli Zaretskii
2023-03-10 13:19 ` Robert Pluim
2023-03-11 7:07 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-03-13 8:07 ` Robert Pluim
2023-03-13 8:28 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-03-13 11:47 ` Eli Zaretskii
2023-03-13 11:50 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-03-13 11:46 ` Eli Zaretskii
2023-03-10 11:59 ` Eli Zaretskii
2023-03-10 11:53 ` Eli Zaretskii
2023-03-10 11:59 ` Gregory Heytings
2023-03-11 7:07 ` Po Lu via Bug reports for GNU Emacs, the Swiss army knife of text editors
2023-03-11 7:47 ` Eli Zaretskii
2023-03-10 18:56 ` Philip Kaludercic
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