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From: | GNU bug Tracking System |
Subject: | bug#56369: closed (29.0.50; abort-redisplay: Crash after 'recenter') |
Date: | Sun, 03 Jul 2022 16:12:02 +0000 |
Your message dated Sun, 03 Jul 2022 19:11:09 +0300 with message-id <83czem9nxe.fsf@gnu.org> and subject line Re: bug#56369: 29.0.50; abort-redisplay: Crash after 'recenter' has caused the debbugs.gnu.org bug report #56369, regarding 29.0.50; abort-redisplay: Crash after 'recenter' to be marked as done. (If you believe you have received this mail in error, please contact help-debbugs@gnu.org.) -- 56369: https://debbugs.gnu.org/cgi/bugreport.cgi?bug=56369 GNU Bug Tracking System Contact help-debbugs@gnu.org with problems
--- Begin Message ---Subject: 29.0.50; abort-redisplay: Crash after 'recenter' Date: Sun, 03 Jul 2022 17:55:50 +0200 User-agent: Evolution 3.44.2 Tags: patch I get a crash caused by a failed free() [see attached backtrace] when running vterm [1] which calls 'recenter' from a loaded module. With gdb, in 'safe_free' I see that the address of the to-be-freed arguments array (allocated in 'module_funcall') is off by one word. I don't know the details of the specpdl stack but I assume that there is a missing 'ubind_to' in 'recenter' before an early return. When I add it (see the attached patch) the problem is gone. [1] https://github.com/akermu/emacs-libvtermbacktrace.txt
Description: Text document0001-abort-redisplay-Add-missing-unbind_to-in-recenter.patch
Description: Text Data
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--- Begin Message ---Subject: Re: bug#56369: 29.0.50; abort-redisplay: Crash after 'recenter' Date: Sun, 03 Jul 2022 19:11:09 +0300 Closing.
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