GNU bug report logs - #52461
spontaneous crash with portable dumper

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Package: emacs;

Reported by: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>

Date: Mon, 13 Dec 2021 01:39:01 UTC

Severity: normal

Done: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>

Bug is archived. No further changes may be made.

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From: YAMAMOTO Mitsuharu <mituharu <at> math.s.chiba-u.ac.jp>
To: 52461 <at> debbugs.gnu.org
Subject: bug#52461: spontaneous crash with portable dumper
Date: Mon, 13 Dec 2021 10:44:04 +0900

On Mon, 13 Dec 2021 10:38:28 +0900,
YAMAMOTO Mitsuharu wrote:
> 
> Because cs_i >= charset_table_used, charset_table[cs_i] (i.e., *cs)
> contains uninitialized contents.  So writing to the area that
> cs->code_space_mask points to can cause crash or memory corruption.

Sorry, cs->code_space_mask was not the destination address but the
source address.  So it does not cause memory corruption, but still
crash can happen.

				     YAMAMOTO Mitsuharu
				mituharu <at> math.s.chiba-u.ac.jp
This bug report was last modified 3 years and 155 days ago.

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