freebsd-src/bin
Jilles Tjoelker 6bc7175f31 sh: Fix double INTON with vfork
The shell maintains a count of the number of times SIGINT processing has
been disabled via INTOFF, so SIGINT processing resumes when all disables
have enabled again (INTON).

If an error occurs in a vfork() child, the processing of the error enables
SIGINT processing again, and the INTON in vforkexecshell() causes the count
to become negative.

As a result, a later INTOFF may not actually disable SIGINT processing. This
might cause memory corruption if a SIGINT arrives at an inopportune time. As
of r360452, it causes the shell to abort when it would unsafely allocate or
free memory in certain ways.

Note that various places such as errors in non-special builtins
unconditionally reset the count to 0, so the problem might still not always
be visible.

PR:		246497
Reported by:	jbeich
MFC after:	2 weeks
2020-05-16 16:29:23 +00:00
..
cat Allow building bin/cat on non-FreeBSD systems 2020-01-16 14:15:00 +00:00
chflags Add an example to the chflags(1) man page. 2018-06-12 16:44:13 +00:00
chio
chmod Correct wording around '-' masks. 2019-03-09 00:30:13 +00:00
cp
csh Fix .depend files to work for build tools. 2019-06-15 17:08:13 +00:00
date Restore the -n flag parsing, but ignore it. 2019-04-24 05:24:10 +00:00
dd Add iflag=fullblock to dd 2019-09-30 22:00:48 +00:00
df Add a deprecation warning when using the feature which mounts devices 2018-02-10 00:22:25 +00:00
domainname
echo Convert cap_enter() < 0 && errno != ENOSYS to caph_enter() < 0. 2018-06-19 23:43:14 +00:00
ed Drop ed(1) "crypto" 2018-11-04 17:56:16 +00:00
expr expr(1): Fix overflow detection when operand is INTMAX_MIN 2018-04-14 04:35:10 +00:00
freebsd-version Convert freebsd-version to using -v 2019-05-23 17:19:00 +00:00
getfacl Avoid copying a struct stat for acl_from_stat() calls. 2018-11-01 17:45:29 +00:00
hostname
kenv
kill
ln
ls ls(1): Fix trivial SEGV due to NULL deref in OOM path 2020-05-05 18:06:32 +00:00
mkdir
mv
pax Add a note that the use of -B option does not guarantee a size of fragment 2018-12-29 23:08:59 +00:00
pkill Clarify that /dev/kmem is not used. 2018-12-03 20:01:51 +00:00
ps ps: extend the non-standard option -d (tree view) to work with -p 2020-05-07 16:56:18 +00:00
pwait Remove unused include. 2020-02-02 20:51:28 +00:00
pwd pwd: mark usage as dead 2018-06-17 05:14:50 +00:00
realpath
rm Remove include of stdint.h. It was added in r241014 for uintmax_t, 2020-04-23 03:46:41 +00:00
rmail
rmdir
setfacl Don't set NFSv4 ACL inheritance flags on non-directories. 2018-10-26 21:17:06 +00:00
sh sh: Fix double INTON with vfork 2020-05-16 16:29:23 +00:00
sleep Convert cap_enter() < 0 && errno != ENOSYS to caph_enter() < 0. 2018-06-19 23:43:14 +00:00
stty Some devices take undesired actions when RTS and DTR are 2019-06-12 18:07:04 +00:00
sync
test
tests
uuidgen pkgbase: Create a FreeBSD-utilities package and make it the default one 2019-09-05 14:15:47 +00:00
Makefile
Makefile.inc