[Bug 1376274] [NEW] unscd segfaults regularly

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[Impact]

 * It's causing a crash.

[Test Case]

 * detailed instructions how to reproduce the bug

[Regression Potential]

 * The fix just checks for one NULL pointer, and it's been in 16.04 and
above since release, per comment #3.


Original Report:
kern.log:Oct  1 11:34:51 camel kernel: [1715974.313870] nscd[11501]: segfault at 0 ip 0000000000403b71 sp 00007fff8ba4def0 error 4 in nscd[400000+8000]

unscd is getting died after a not very long time.

ProblemType: Bug
DistroRelease: Ubuntu 14.04
Package: unscd 0.51-1build2
ProcVersionSignature: Ubuntu 3.13.0-35.62-generic 3.13.11.6
Uname: Linux 3.13.0-35-generic x86_64
NonfreeKernelModules: vhost_net vhost macvtap macvlan ipt_MASQUERADE iptable_nat nf_nat_ipv4 nf_nat nf_conntrack_ipv4 nf_defrag_ipv4 xt_conntrack nf_conntrack ipt_REJECT xt_CHECKSUM iptable_mangle xt_tcpudp ip6table_filter ip6_tables iptable_filter ip_tables x_tables veth bridge stp llc gpio_ich x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm crct10dif_pclmul crc32_pclmul ghash_clmulni_intel aesni_intel aes_x86_64 lrw gf128mul glue_helper ablk_helper cryptd sb_edac joydev edac_core mei_me mei lpc_ich ipmi_si wmi ioatdma mac_hid lp parport zfs zunicode zavl zcommon znvpair spl btrfs libcrc32c raid10 raid456 async_raid6_recov async_memcpy async_pq async_xor async_tx xor igb raid6_pq i2c_algo_bit raid1 isci mpt2sas hid_generic dca raid0 libsas usbhid raid_class ptp ahci multipath hid libahci scsi_transport_sas pps_core linear
ApportVersion: 2.14.1-0ubuntu3.4
Architecture: amd64
Date: Wed Oct  1 15:49:48 2014
Dependencies:
 gcc-4.9-base 4.9.1-0ubuntu1
 libc6 2.19-0ubuntu6.3
 libgcc1 1:4.9.1-0ubuntu1
 multiarch-support 2.19-0ubuntu6.3
SourcePackage: unscd
UpgradeStatus: Upgraded to trusty on 2014-06-04 (119 days ago)

** Affects: unscd (Ubuntu)
     Importance: Undecided
     Assignee: Bryan Quigley (bryanquigley)
         Status: Confirmed


** Tags: amd64 apport-bug patch trusty
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unscd segfaults regularly
https://bugs.launchpad.net/bugs/1376274
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