Branch: refs/heads/blead
Home: https://github.com/Perl/perl5
Commit: f4cc8ab9dba9f2cfac19bbb2194eff6266ccde70
https://github.com/Perl/perl5/commit/f4cc8ab9dba9f2cfac19bbb2194eff6266ccde70
Author: David Mitchell <da...@iabyn.com>
Date: 2022-07-09 (Sat, 09 Jul 2022)
Changed paths:
M pp_ctl.c
M t/op/goto.t
Log Message:
-----------
avoid SEGVs on goto &xs_sub
GH #19936
When the sub which is being left gets freed, like:
sub foo { *foo = sub {}; goto &xs_sub }
it can leave PL_op as a NULL pointer while the XS sub is being executed.
My recent commit v5.37.1-83-g58cf04199f, which fixed the value of
GIMME_V in such XS subs, made the problem more noticeable, since it
caused PL_op to always be accessed.
The fix is to defer the freeing of the old sub when goto'ing an XS sub.
Commit: 8a4b911d06671a03e21054142ab2c27b15d5fd3e
https://github.com/Perl/perl5/commit/8a4b911d06671a03e21054142ab2c27b15d5fd3e
Author: David Mitchell <da...@iabyn.com>
Date: 2022-07-09 (Sat, 09 Jul 2022)
Changed paths:
M pod/perldelta.pod
Log Message:
-----------
perldelta: add entry for 2 goto &xs_sub fixes
Compare: https://github.com/Perl/perl5/compare/a7304a688ff2...8a4b911d0667
