[R-sig-Fedora] Cannot Run On The Command Line

[virgo]

$ R
/usr/bin/R: line 238: /usr/lib64/R/etc/ldpaths: Permission denied

$ rpm -q R
R-3.2.3-2.fc23.x86_64

That /usr/bin/R#L238 is:
. "${R_HOME}/etc${R_ARCH}/ldpaths"

I noticed the error began bursting shortly after I ran dnf update.
An excerpt from dnf's transaction logs:
$ dnf history info <ID>
Upgraded setroubleshoot-3.3.5-2.fc23.x86_64         @updates
Upgrade                 3.3.5-3.fc23.x86_64         @updates
Upgraded setroubleshoot-server-3.3.5-2.fc23.x86_64  @updates
Upgrade                        3.3.5-3.fc23.x86_64  @updates

The missing part in the above logs is about a kernel update. May
the_"Permission denied"_ error be related to SELinux ? Here're the
contexts for R and ldpaths:
$ ls -lhZ /usr/bin/R /usr/lib64/R/etc/ldpaths
system_u:object_r:bin_t:s0     8.6K /usr/bin/R
unconfined_u:object_r:lib_t:s0  574 /usr/lib64/R/etc/ldpaths

Something weird is that RStudio keeps running as it used to do earlier
when R on the command line was still _allowed_ to run. The root's
shell gives no error, too.
# R --version
R version 3.2.3 (2015-12-10) -- "Wooden Christmas-Tree"

The only R-related environment variable that is set is R_LIBS.

I'd appreciate any help on this one.