[Touch-packages] [Bug 1769301] Re: resetting /proc/thread-self/attr/fscreate results in 'Invalid Argument'
I'm sorry but I have no access to the system any longer, therefore I
cannot the command.
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to libselinux in Ubuntu.
https://bugs.launchpad.net/bugs/1769301
Title:
resetting /proc/thread-self/attr/fscreate results in 'Invalid
Argument'
Status in libselinux package in Ubuntu:
Confirmed
Status in linux package in Ubuntu:
Incomplete
Bug description:
root@ubuntu:~# useradd -g 100 tst003
useradd: failure while writing changes to /etc/passwd
root@ubuntu:~# sestatus
SELinux status: enabled
SELinuxfs mount:/sys/fs/selinux
SELinux root directory: /etc/selinux
Loaded policy name: default
Current mode: permissive
Mode from config file: permissive
Policy MLS status: enabled
Policy deny_unknown status: allowed
Memory protection checking: requested (insecure)
Max kernel policy version: 31
The problem does not occur when SELinux is complete disabled.
Please note that a very similar problem occurs using groupadd:
root@ubuntu:~# groupadd tstgrp001
groupadd: failure while writing changes to /etc/group
= journal =
(Please note that there is *no* AVC!)
May 05 05:11:44 ubuntu useradd[756]: new user: name=tst003, UID=1004,
GID=100, home=/home/tst003, shell=/bin/sh
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
id=1004 exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=success'
May 05 05:11:44 ubuntu useradd[756]: failure while writing changes to
/etc/passwd
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
acct="tst003" exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=failed'
May 05 05:11:44 ubuntu useradd[756]: failed adding user 'tst003', data deleted
= ltrace =
[pid 1074] SYS_write(12, "root:x:"..., 1360) = 1360
[pid 1074] <... fflush resumed> )= 0
[pid 1074] fileno(0x5595b21c6200)= 12
[pid 1074] fsync(12, 0x5595b21c62e0, 0, 0x7ff933d5c154
[pid 1074] SYS_fsync(12) = 0
[pid 1074] <... fsync resumed> ) = 0
[pid 1074] fclose(0x5595b21c6200
[pid 1074] SYS_close(12) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] utime(0x7ffee34207e0, 0x7ffee34206b0, 0x5595b21af010, 1
[pid 1074] SYS_utime("/etc/passwd-", 0x7ffee34206b0) = 0
[pid 1074] <... utime resumed> ) = 0
[pid 1074] fclose(0x5595b21af2a0
[pid 1074] SYS_close(5) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] setfscreatecon(0, 0x5595b21af118, 1, 2
[pid 1074] SYS_openat(0xff9c, 0x5595b21cebc0, 0x80002, 0) = 5
[pid 1074] SYS_write(5, nil, 0) = -22
[pid 1074] SYS_close(5) = 0
[pid 1074] <... setfscreatecon resumed> )= 0x
[pid 1074] free(0x5595b21b9dc0) =
[pid 1074] free(0x5595b21b8a00) =
[pid 1074] strlen("x") = 1
[pid 1074] memset(0x5595b21b7560, '\0', 1) = 0x5595b21b7560
[pid 1074] free(0x5595b21b7560) =
[pid 1074] free(0x5595b21b94e0) =
[pid 1074] free(0x5595b21b9000) =
[pid 1074] free(0x5595b21b8fc0) =
= strace =
write(12, "root:x:"..., 1360) = 1360
fsync(12) = 0
close(12) = 0
utime("/etc/passwd-", {actime=1525497034 /* 2018-05-05T05:10:34+ */,
modtime=1525496803 /* 2018-05-05T05:06:43+ */}) = 0
close(5)= 0
openat(AT_FDCWD, "/proc/thread-self/attr/fscreate", O_RDWR|O_CLOEXEC) = 5
write(5, NULL, 0) = -1 EINVAL (Invalid argument)
close(5)= 0
= Version Information =
root@ubuntu:~# lsb_release -rd
Description: Ubuntu 18.04 LTS
Release: 18.04
root@ubuntu:~# dpkg -l | grep passwd | grep -v base-pa
ii passwd1:4.5-1ubuntu1
amd64change and administer password and group data
root@ubuntu:~# dpkg -l | grep selinux
ii libselinux1:amd64 2.7-2build2
amd64SELinux runtime shared libraries
ii python3-selinux 2.7-2build2
amd64Python3 bindings to SELinux shared libraries
ii selinux-basics0.5.6
all SELinux basic support
ii selinux-policy-default2:2.20180114-1
all
[Touch-packages] [Bug 1769301] Re: resetting /proc/thread-self/attr/fscreate results in 'Invalid Argument'
** Also affects: linux (Ubuntu)
Importance: Undecided
Status: New
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to libselinux in Ubuntu.
https://bugs.launchpad.net/bugs/1769301
Title:
resetting /proc/thread-self/attr/fscreate results in 'Invalid
Argument'
Status in libselinux package in Ubuntu:
Confirmed
Status in linux package in Ubuntu:
New
Bug description:
root@ubuntu:~# useradd -g 100 tst003
useradd: failure while writing changes to /etc/passwd
root@ubuntu:~# sestatus
SELinux status: enabled
SELinuxfs mount:/sys/fs/selinux
SELinux root directory: /etc/selinux
Loaded policy name: default
Current mode: permissive
Mode from config file: permissive
Policy MLS status: enabled
Policy deny_unknown status: allowed
Memory protection checking: requested (insecure)
Max kernel policy version: 31
The problem does not occur when SELinux is complete disabled.
Please note that a very similar problem occurs using groupadd:
root@ubuntu:~# groupadd tstgrp001
groupadd: failure while writing changes to /etc/group
= journal =
(Please note that there is *no* AVC!)
May 05 05:11:44 ubuntu useradd[756]: new user: name=tst003, UID=1004,
GID=100, home=/home/tst003, shell=/bin/sh
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
id=1004 exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=success'
May 05 05:11:44 ubuntu useradd[756]: failure while writing changes to
/etc/passwd
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
acct="tst003" exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=failed'
May 05 05:11:44 ubuntu useradd[756]: failed adding user 'tst003', data deleted
= ltrace =
[pid 1074] SYS_write(12, "root:x:"..., 1360) = 1360
[pid 1074] <... fflush resumed> )= 0
[pid 1074] fileno(0x5595b21c6200)= 12
[pid 1074] fsync(12, 0x5595b21c62e0, 0, 0x7ff933d5c154
[pid 1074] SYS_fsync(12) = 0
[pid 1074] <... fsync resumed> ) = 0
[pid 1074] fclose(0x5595b21c6200
[pid 1074] SYS_close(12) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] utime(0x7ffee34207e0, 0x7ffee34206b0, 0x5595b21af010, 1
[pid 1074] SYS_utime("/etc/passwd-", 0x7ffee34206b0) = 0
[pid 1074] <... utime resumed> ) = 0
[pid 1074] fclose(0x5595b21af2a0
[pid 1074] SYS_close(5) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] setfscreatecon(0, 0x5595b21af118, 1, 2
[pid 1074] SYS_openat(0xff9c, 0x5595b21cebc0, 0x80002, 0) = 5
[pid 1074] SYS_write(5, nil, 0) = -22
[pid 1074] SYS_close(5) = 0
[pid 1074] <... setfscreatecon resumed> )= 0x
[pid 1074] free(0x5595b21b9dc0) =
[pid 1074] free(0x5595b21b8a00) =
[pid 1074] strlen("x") = 1
[pid 1074] memset(0x5595b21b7560, '\0', 1) = 0x5595b21b7560
[pid 1074] free(0x5595b21b7560) =
[pid 1074] free(0x5595b21b94e0) =
[pid 1074] free(0x5595b21b9000) =
[pid 1074] free(0x5595b21b8fc0) =
= strace =
write(12, "root:x:"..., 1360) = 1360
fsync(12) = 0
close(12) = 0
utime("/etc/passwd-", {actime=1525497034 /* 2018-05-05T05:10:34+ */,
modtime=1525496803 /* 2018-05-05T05:06:43+ */}) = 0
close(5)= 0
openat(AT_FDCWD, "/proc/thread-self/attr/fscreate", O_RDWR|O_CLOEXEC) = 5
write(5, NULL, 0) = -1 EINVAL (Invalid argument)
close(5)= 0
= Version Information =
root@ubuntu:~# lsb_release -rd
Description: Ubuntu 18.04 LTS
Release: 18.04
root@ubuntu:~# dpkg -l | grep passwd | grep -v base-pa
ii passwd1:4.5-1ubuntu1
amd64change and administer password and group data
root@ubuntu:~# dpkg -l | grep selinux
ii libselinux1:amd64 2.7-2build2
amd64SELinux runtime shared libraries
ii python3-selinux 2.7-2build2
amd64Python3 bindings to SELinux shared libraries
ii selinux-basics0.5.6
all SELinux basic support
ii selinux-policy-default2:2.20180114-1
all Strict and
[Touch-packages] [Bug 1769301] Re: resetting /proc/thread-self/attr/fscreate results in 'Invalid Argument'
I've asked a question on stackexchange.com, but still no answer. There is a
detailed description and some logs.
https://unix.stackexchange.com/questions/458853/useradd-groupadd-fails-failure-while-writing-changes-to-etc-passwd-and-etc-gr
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to libselinux in Ubuntu.
https://bugs.launchpad.net/bugs/1769301
Title:
resetting /proc/thread-self/attr/fscreate results in 'Invalid
Argument'
Status in libselinux package in Ubuntu:
Confirmed
Bug description:
root@ubuntu:~# useradd -g 100 tst003
useradd: failure while writing changes to /etc/passwd
root@ubuntu:~# sestatus
SELinux status: enabled
SELinuxfs mount:/sys/fs/selinux
SELinux root directory: /etc/selinux
Loaded policy name: default
Current mode: permissive
Mode from config file: permissive
Policy MLS status: enabled
Policy deny_unknown status: allowed
Memory protection checking: requested (insecure)
Max kernel policy version: 31
The problem does not occur when SELinux is complete disabled.
Please note that a very similar problem occurs using groupadd:
root@ubuntu:~# groupadd tstgrp001
groupadd: failure while writing changes to /etc/group
= journal =
(Please note that there is *no* AVC!)
May 05 05:11:44 ubuntu useradd[756]: new user: name=tst003, UID=1004,
GID=100, home=/home/tst003, shell=/bin/sh
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
id=1004 exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=success'
May 05 05:11:44 ubuntu useradd[756]: failure while writing changes to
/etc/passwd
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
acct="tst003" exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=failed'
May 05 05:11:44 ubuntu useradd[756]: failed adding user 'tst003', data deleted
= ltrace =
[pid 1074] SYS_write(12, "root:x:"..., 1360) = 1360
[pid 1074] <... fflush resumed> )= 0
[pid 1074] fileno(0x5595b21c6200)= 12
[pid 1074] fsync(12, 0x5595b21c62e0, 0, 0x7ff933d5c154
[pid 1074] SYS_fsync(12) = 0
[pid 1074] <... fsync resumed> ) = 0
[pid 1074] fclose(0x5595b21c6200
[pid 1074] SYS_close(12) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] utime(0x7ffee34207e0, 0x7ffee34206b0, 0x5595b21af010, 1
[pid 1074] SYS_utime("/etc/passwd-", 0x7ffee34206b0) = 0
[pid 1074] <... utime resumed> ) = 0
[pid 1074] fclose(0x5595b21af2a0
[pid 1074] SYS_close(5) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] setfscreatecon(0, 0x5595b21af118, 1, 2
[pid 1074] SYS_openat(0xff9c, 0x5595b21cebc0, 0x80002, 0) = 5
[pid 1074] SYS_write(5, nil, 0) = -22
[pid 1074] SYS_close(5) = 0
[pid 1074] <... setfscreatecon resumed> )= 0x
[pid 1074] free(0x5595b21b9dc0) =
[pid 1074] free(0x5595b21b8a00) =
[pid 1074] strlen("x") = 1
[pid 1074] memset(0x5595b21b7560, '\0', 1) = 0x5595b21b7560
[pid 1074] free(0x5595b21b7560) =
[pid 1074] free(0x5595b21b94e0) =
[pid 1074] free(0x5595b21b9000) =
[pid 1074] free(0x5595b21b8fc0) =
= strace =
write(12, "root:x:"..., 1360) = 1360
fsync(12) = 0
close(12) = 0
utime("/etc/passwd-", {actime=1525497034 /* 2018-05-05T05:10:34+ */,
modtime=1525496803 /* 2018-05-05T05:06:43+ */}) = 0
close(5)= 0
openat(AT_FDCWD, "/proc/thread-self/attr/fscreate", O_RDWR|O_CLOEXEC) = 5
write(5, NULL, 0) = -1 EINVAL (Invalid argument)
close(5)= 0
= Version Information =
root@ubuntu:~# lsb_release -rd
Description: Ubuntu 18.04 LTS
Release: 18.04
root@ubuntu:~# dpkg -l | grep passwd | grep -v base-pa
ii passwd1:4.5-1ubuntu1
amd64change and administer password and group data
root@ubuntu:~# dpkg -l | grep selinux
ii libselinux1:amd64 2.7-2build2
amd64SELinux runtime shared libraries
ii python3-selinux 2.7-2build2
amd64Python3 bindings to SELinux shared libraries
ii selinux-basics0.5.6
all
[Touch-packages] [Bug 1769301] Re: resetting /proc/thread-self/attr/fscreate results in 'Invalid Argument'
Status changed to 'Confirmed' because the bug affects multiple users.
** Changed in: libselinux (Ubuntu)
Status: New => Confirmed
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to libselinux in Ubuntu.
https://bugs.launchpad.net/bugs/1769301
Title:
resetting /proc/thread-self/attr/fscreate results in 'Invalid
Argument'
Status in libselinux package in Ubuntu:
Confirmed
Bug description:
root@ubuntu:~# useradd -g 100 tst003
useradd: failure while writing changes to /etc/passwd
root@ubuntu:~# sestatus
SELinux status: enabled
SELinuxfs mount:/sys/fs/selinux
SELinux root directory: /etc/selinux
Loaded policy name: default
Current mode: permissive
Mode from config file: permissive
Policy MLS status: enabled
Policy deny_unknown status: allowed
Memory protection checking: requested (insecure)
Max kernel policy version: 31
The problem does not occur when SELinux is complete disabled.
Please note that a very similar problem occurs using groupadd:
root@ubuntu:~# groupadd tstgrp001
groupadd: failure while writing changes to /etc/group
= journal =
(Please note that there is *no* AVC!)
May 05 05:11:44 ubuntu useradd[756]: new user: name=tst003, UID=1004,
GID=100, home=/home/tst003, shell=/bin/sh
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
id=1004 exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=success'
May 05 05:11:44 ubuntu useradd[756]: failure while writing changes to
/etc/passwd
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
acct="tst003" exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=failed'
May 05 05:11:44 ubuntu useradd[756]: failed adding user 'tst003', data deleted
= ltrace =
[pid 1074] SYS_write(12, "root:x:"..., 1360) = 1360
[pid 1074] <... fflush resumed> )= 0
[pid 1074] fileno(0x5595b21c6200)= 12
[pid 1074] fsync(12, 0x5595b21c62e0, 0, 0x7ff933d5c154
[pid 1074] SYS_fsync(12) = 0
[pid 1074] <... fsync resumed> ) = 0
[pid 1074] fclose(0x5595b21c6200
[pid 1074] SYS_close(12) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] utime(0x7ffee34207e0, 0x7ffee34206b0, 0x5595b21af010, 1
[pid 1074] SYS_utime("/etc/passwd-", 0x7ffee34206b0) = 0
[pid 1074] <... utime resumed> ) = 0
[pid 1074] fclose(0x5595b21af2a0
[pid 1074] SYS_close(5) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] setfscreatecon(0, 0x5595b21af118, 1, 2
[pid 1074] SYS_openat(0xff9c, 0x5595b21cebc0, 0x80002, 0) = 5
[pid 1074] SYS_write(5, nil, 0) = -22
[pid 1074] SYS_close(5) = 0
[pid 1074] <... setfscreatecon resumed> )= 0x
[pid 1074] free(0x5595b21b9dc0) =
[pid 1074] free(0x5595b21b8a00) =
[pid 1074] strlen("x") = 1
[pid 1074] memset(0x5595b21b7560, '\0', 1) = 0x5595b21b7560
[pid 1074] free(0x5595b21b7560) =
[pid 1074] free(0x5595b21b94e0) =
[pid 1074] free(0x5595b21b9000) =
[pid 1074] free(0x5595b21b8fc0) =
= strace =
write(12, "root:x:"..., 1360) = 1360
fsync(12) = 0
close(12) = 0
utime("/etc/passwd-", {actime=1525497034 /* 2018-05-05T05:10:34+ */,
modtime=1525496803 /* 2018-05-05T05:06:43+ */}) = 0
close(5)= 0
openat(AT_FDCWD, "/proc/thread-self/attr/fscreate", O_RDWR|O_CLOEXEC) = 5
write(5, NULL, 0) = -1 EINVAL (Invalid argument)
close(5)= 0
= Version Information =
root@ubuntu:~# lsb_release -rd
Description: Ubuntu 18.04 LTS
Release: 18.04
root@ubuntu:~# dpkg -l | grep passwd | grep -v base-pa
ii passwd1:4.5-1ubuntu1
amd64change and administer password and group data
root@ubuntu:~# dpkg -l | grep selinux
ii libselinux1:amd64 2.7-2build2
amd64SELinux runtime shared libraries
ii python3-selinux 2.7-2build2
amd64Python3 bindings to SELinux shared libraries
ii selinux-basics0.5.6
all SELinux basic support
ii selinux-policy-default2:2.20180114-1
[Touch-packages] [Bug 1769301] Re: resetting /proc/thread-self/attr/fscreate results in 'Invalid Argument'
Got the same problem. It looks like the problem is in the kernel 4.15
with Canonical patches. Vanilla 4.15, built from source, has no problem
with useradd. Ubuntu 16.04 LTS kernel 4.13 generic, built from source,
is also ok. I've spent plenty of time trying to make it work.
--
You received this bug notification because you are a member of Ubuntu
Touch seeded packages, which is subscribed to libselinux in Ubuntu.
https://bugs.launchpad.net/bugs/1769301
Title:
resetting /proc/thread-self/attr/fscreate results in 'Invalid
Argument'
Status in libselinux package in Ubuntu:
New
Bug description:
root@ubuntu:~# useradd -g 100 tst003
useradd: failure while writing changes to /etc/passwd
root@ubuntu:~# sestatus
SELinux status: enabled
SELinuxfs mount:/sys/fs/selinux
SELinux root directory: /etc/selinux
Loaded policy name: default
Current mode: permissive
Mode from config file: permissive
Policy MLS status: enabled
Policy deny_unknown status: allowed
Memory protection checking: requested (insecure)
Max kernel policy version: 31
The problem does not occur when SELinux is complete disabled.
Please note that a very similar problem occurs using groupadd:
root@ubuntu:~# groupadd tstgrp001
groupadd: failure while writing changes to /etc/group
= journal =
(Please note that there is *no* AVC!)
May 05 05:11:44 ubuntu useradd[756]: new user: name=tst003, UID=1004,
GID=100, home=/home/tst003, shell=/bin/sh
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
id=1004 exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=success'
May 05 05:11:44 ubuntu useradd[756]: failure while writing changes to
/etc/passwd
May 05 05:11:44 ubuntu audit[756]: ADD_USER pid=756 uid=0 auid=1002 ses=1
subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 msg='op=adding user
acct="tst003" exe="/usr/sbin/useradd" hostname=ubuntu addr=? terminal=pts/0
res=failed'
May 05 05:11:44 ubuntu useradd[756]: failed adding user 'tst003', data deleted
= ltrace =
[pid 1074] SYS_write(12, "root:x:"..., 1360) = 1360
[pid 1074] <... fflush resumed> )= 0
[pid 1074] fileno(0x5595b21c6200)= 12
[pid 1074] fsync(12, 0x5595b21c62e0, 0, 0x7ff933d5c154
[pid 1074] SYS_fsync(12) = 0
[pid 1074] <... fsync resumed> ) = 0
[pid 1074] fclose(0x5595b21c6200
[pid 1074] SYS_close(12) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] utime(0x7ffee34207e0, 0x7ffee34206b0, 0x5595b21af010, 1
[pid 1074] SYS_utime("/etc/passwd-", 0x7ffee34206b0) = 0
[pid 1074] <... utime resumed> ) = 0
[pid 1074] fclose(0x5595b21af2a0
[pid 1074] SYS_close(5) = 0
[pid 1074] <... fclose resumed> )= 0
[pid 1074] setfscreatecon(0, 0x5595b21af118, 1, 2
[pid 1074] SYS_openat(0xff9c, 0x5595b21cebc0, 0x80002, 0) = 5
[pid 1074] SYS_write(5, nil, 0) = -22
[pid 1074] SYS_close(5) = 0
[pid 1074] <... setfscreatecon resumed> )= 0x
[pid 1074] free(0x5595b21b9dc0) =
[pid 1074] free(0x5595b21b8a00) =
[pid 1074] strlen("x") = 1
[pid 1074] memset(0x5595b21b7560, '\0', 1) = 0x5595b21b7560
[pid 1074] free(0x5595b21b7560) =
[pid 1074] free(0x5595b21b94e0) =
[pid 1074] free(0x5595b21b9000) =
[pid 1074] free(0x5595b21b8fc0) =
= strace =
write(12, "root:x:"..., 1360) = 1360
fsync(12) = 0
close(12) = 0
utime("/etc/passwd-", {actime=1525497034 /* 2018-05-05T05:10:34+ */,
modtime=1525496803 /* 2018-05-05T05:06:43+ */}) = 0
close(5)= 0
openat(AT_FDCWD, "/proc/thread-self/attr/fscreate", O_RDWR|O_CLOEXEC) = 5
write(5, NULL, 0) = -1 EINVAL (Invalid argument)
close(5)= 0
= Version Information =
root@ubuntu:~# lsb_release -rd
Description: Ubuntu 18.04 LTS
Release: 18.04
root@ubuntu:~# dpkg -l | grep passwd | grep -v base-pa
ii passwd1:4.5-1ubuntu1
amd64change and administer password and group data
root@ubuntu:~# dpkg -l | grep selinux
ii libselinux1:amd64 2.7-2build2
amd64SELinux runtime shared libraries
ii python3-selinux 2.7-2build2
amd64Python3 bindings to SELinux shared libraries
ii selinux-basics0.5.6
