RHBA-2015:1380 - Bug Fix Advisory

Topic

Updated initscripts packages that fix several bugs are now available for Red Hat
Enterprise Linux 6.

Description

The initscripts packages contain basic system scripts to boot the system, change
runlevels, activate and deactivate most network interfaces, and shut down the
system cleanly.

Bugs:

• Due to a race condition, the multicast_snooping bridging option failed to be

applied before creating a bridge device. With this update, multicast_snooping is
applied after the bridge is up, and the option now works as intended.
(BZ#1129624)

• Previously, the rc.sysinit script only set affinity for PID 1 (init), which

caused that processes that were run from sysinit did not inherit this setting.
This update sets affinity also for the script itself, and thus initscripts
correctly set affinity for all running processes. (BZ#957706)

• The net.bridge.bridge-nf-call-ip6tables key was previously applied on all

systems. Consequently, when a kernel module was missing, harmless but
unnecessary messages were returned. The rules have been relocated from
sysctl.conf, which ensures that they are applied only if needed. (BZ#919472)

• When a shutdown was attempted while an NFS Client machine had I/O in progress

on an NFS mount, the system became unresponsive during shutdown. This update
applies a lazy mount, within which all processes that have open File Descriptors
(FDs) are found and killed, and hangs thus no longer occur in this situation.
(BZ#1101546)

• Previously, the netconsole starting priority was set to 50, which caused that

netconsole was started late during the system boot. This update lowers the
priority so that netconsole starts right after the network is up. (BZ#1136863)

• If resolv.conf.save was present, resolv.conf was overwritten by the content of

resolv.conf.save. As a consequence, unexpected changes could occur to
resolve.conf. Now, the content of resolv.conf is replaced only when the device
is dynamically configured or contains DNS options in its ifcfg file.
(BZ#1157816)

• Previously, the broadcast address was not computed correctly due to the ipcalc

utility not being aware of RFC 3021. With this update, ipcalc correctly
recognizes RFC 3021, thus fixing this bug. (BZ#997271)

• Previously, network aliases did not inherit the ARPCHECK variable from their

parents, which caused that parents where not checked for duplicate IP addresses
but their aliases did check them. With this update, alias devices inherit
ARPCHECK. (BZ#1109588)

• Previously, a syntax error occurred when using the tcsh shell along with the

grep utility, returning the following error after logging:

grep: character class syntax is [[:space:]], not [:space:]

The lang.csh code has been fixed, and error messages are no longer returned in
this scenario. (BZ#1164902)

• Prior to this update, if the system became unresponsive during boot, the

administrator was not able to determine the cause. This update adds more
informative messages returned by rc.sysinit. In addition, a new rc.debug option
for the kernel command line has been added, so that the administrator receives
proper debugging information. (BZ#1168664)

• Due to a syntax error in the install_bonding_driver() function, the following

error message was returned:

/sys/class/net/bonding/slaves: No such file or directory

The syntax error has been fixed, and the aforementioned error message is no
longer returned. (BZ#1176999)

• Previously, network initscripts silently failed if the root was on the network

file system and did not perform any action, which was confusing. Now, network
initscripts print the following message to inform the system administrator:

rootfs is on network filesystem, leaving network up

(BZ#1189337)

• Previously, the "ip addr flush" command was called with global scope, which is

incorrect for loopback addresses. Consequently, the system could become
unresponsive. With this update, the scope host for loopback is used, and the
flush operation works as expected. (BZ#1072967)

Users of initscripts are advised to upgrade to these updated packages, which fix
these bugs.

Solution

Before applying this update, make sure all previously released errata
relevant to your system have been applied.

For details on how to apply this update, refer to:

https://access.redhat.com/articles/11258

Affected Products

• Red Hat Enterprise Linux Server 6 x86_64
• Red Hat Enterprise Linux Server 6 i386
• Red Hat Enterprise Linux Workstation 6 x86_64
• Red Hat Enterprise Linux Workstation 6 i386
• Red Hat Enterprise Linux Desktop 6 i386
• Red Hat Enterprise Linux for IBM z Systems 6 s390x
• Red Hat Enterprise Linux for Power, big endian 6 ppc64
• Red Hat Enterprise Linux for Scientific Computing 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 x86_64
• Red Hat Enterprise Linux Server from RHUI 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support 6 i386
• Red Hat Enterprise Linux Desktop 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support (for IBM z Systems) 6 s390x
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 x86_64
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension 6 i386
• Red Hat Enterprise Linux Server - Extended Life Cycle Support Extension (for IBM z Systems) 6 s390x

Fixes

• BZ - 883856 - lsb-defined pidofproc function has false positives
• BZ - 994323 - Delay needed after upsdrvctl shutdown
• BZ - 997271 - ipcalc does not understand RFC3021
• BZ - 1072967 - server hangup on shutdown when using NIS and oracle
• BZ - 1109588 - Determining if ipaddress is already in use
• BZ - 1136337 - Creation of bonds with similar names fails
• BZ - 1157816 - resolv.conf is overwritten if resolv.conf.save exists
• BZ - 1164902 - grep: character class syntax is [[:space:]], not [:space:]" printed for every tcsh shell
• BZ - 1168664 - rc.sysinit needs to be more verbose

CVEs

(none)

References

(none)