This has been now been fixed in OpenBSD and reported upstream.
Thanks for including a reproducer, that made it a lot easier
to fix the problem.
- todd
CVSROOT:/cvs
Module name:src
Changes by: mill...@cvs.openbsd.org 2023/10/28 16:38:22
Modified files:
usr.bin/awk: ru
On Sat, 28 Oct 2023 10:33:09 -0600, "Todd C. Miller" wrote:
> Looks like an off-by-one introduced in the utf8 conversion.
> The following fixes the bug for me. I will file a PR upstream.
Unfortunately, things are not so simple. Below is a workaround
until I have a better fix.
- todd
Index: u
Looks like an off-by-one introduced in the utf8 conversion.
The following fixes the bug for me. I will file a PR upstream.
- todd
Index: usr.bin/awk/run.c
===
RCS file: /cvs/src/usr.bin/awk/run.c,v
retrieving revision 1.79
diff -u
Thanks, the crash is fairly easy to reproduce under memory sanitizer.
As a workaround, if you set LANG=C in the environment it will avoid
the bug.
- todd
>Synopsis: function substr causes random core dumps of awk
>Category: user
>Environment:
System : OpenBSD 7.4
Details : OpenBSD 7.4 (GENERIC.MP) #0: Sun Oct 22 12:13:42 MDT 2023
r...@syspatch-74-amd64.openbsd.org:/usr/src/sys/arch/amd64/c
