CVSROOT: /cvs
Module name: src
Changes by: mart...@cvs.openbsd.org 2021/08/11 09:13:46
Modified files:
lib/libedit : read.c
Log message:
Only enter the sig_no switch if we actually return from read(2) with
errno == EINTR. There was a race here where read(2) can return with a
different errno, but the signal handler enters between the read return and
the switch, which could result in handling a signal, while we should be
handling the error.
This fix assumes that signal handlers don't clobber our errno, but doing
that would open a whole other can of worms.
OK schwarze@, millert@
