Why does sudo crashes with "sudo[ ]: segfault at 8 ip 00007fc7ebf23db2 sp 00007fffbcc0d290 error 4 in sudoers.so" in Red Hat Enterprise Linux 6?
Issue
-
While running the
sudocommand with the-gcommand, it exits with a segmentation fault on Red Hat Enterprise Linux (RHEL)6.5 and Red Hat Enterprise Linux (RHEL)6.7 -
Segmentation fault seen with this command:
# sudo -u xsrun -g xsight /bin/ls /
- Issue is not observed if
-g xsightoption is not used.
Environment
- Red Hat Enterprise Linux 6.7
- sudo-1.8.6p3-15.el6.x86_64
- Following commands were executed to set up a users:
# /usr/sbin/groupadd --gid 1000 xsight
# /usr/sbin/useradd --home /home/xsight --comment "xSIGHT user" --gid 1000 -m --password '$1$434343$343234.' --shell /bin/bash --uid 1000 xsight
# /usr/sbin/useradd --home /home/xsrun --comment "xSIGHT xsrun user" --gid 1000 -m --password '*' --shell /sbin/nologin --uid 1002 xsrun
# sed -i "s/xsight:x:1000:$/xsight:x:1000:xsight,xsrun/" /etc/group
- The
/etc/sudoers.d/01-xpsfile contents:
%xsight ALL = (xsrun:xsight) NOPASSWD: ALL
Subscriber exclusive content
A Red Hat subscription provides unlimited access to our knowledgebase, tools, and much more.
