untrusted comment: verify with openbsd-67-base.pub
RWRmkIA877Io3urz2Ey2QlLpS3IVHlGKyhQMriqt11jLNoKSkNk9fm0XAW/xXuZ/gOdZUpzuWHYSDnTEISckgxK4t4TAV0L6GwM=
OpenBSD 6.7 errata 033, December 24, 2020:
smtpd's filter state machine can prematurely release resources
leading to a crash.
Apply by doing:
signify -Vep /etc/signify/openbsd-67-base.pub -x 033_smtpd.patch.sig \
-m - | (cd /usr/src && patch -p0)
And then rebuild and install smtpd:
cd /usr/src/usr.sbin/smtpd
make obj
make
make install
Index: usr.sbin/smtpd/lka_filter.c
===================================================================
RCS file: /cvs/src/usr.sbin/smtpd/lka_filter.c,v
diff -u -p -u -p -r1.62 lka_filter.c
--- usr.sbin/smtpd/lka_filter.c 24 Apr 2020 11:34:07 -0000 1.62
+++ usr.sbin/smtpd/lka_filter.c 23 Dec 2020 12:58:41 -0000
@@ -597,11 +597,6 @@ filter_session_io(struct io *io, int evt
filter_data(fs->id, line);
goto nextline;
-
- case IO_DISCONNECTED:
- io_free(fs->io);
- fs->io = NULL;
- break;
}
}
