hddtemp falling foul of new kernel protection

[Gareth Bult]

#/usr/sbin/hddtemp /dev/sdb

*** stack smashing detected ***: /usr/sbin/hddtemp terminated
======= Backtrace: =========
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x37)[0x7f36902d3007]
/lib/x86_64-linux-gnu/libc.so.6(__fortify_fail+0x0)[0x7f36902d2fd0]
/usr/sbin/hddtemp[0x4027ef]
======= Memory map: ========
00400000-00407000 r-xp 00000000 08:01 20392 /usr/sbin/hddtemp
00607000-00608000 r--p 00007000 08:01 20392 /usr/sbin/hddtemp
00608000-00609000 rw-p 00008000 08:01 20392 /usr/sbin/hddtemp
00609000-0060a000 rw-p 00000000 00:00 0
01ccc000-01d0e000 rw-p 00000000 00:00 0 [heap]
7f368fce8000-7f368fcfd000 r-xp 00000000 08:01 260758 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f368fcfd000-7f368fefc000 ---p 00015000 08:01 260758 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f368fefc000-7f368fefd000 r--p 00014000 08:01 260758 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f368fefd000-7f368fefe000 rw-p 00015000 08:01 260758 /lib/x86_64-linux-gnu/libgcc_s.so.1
7f368fefe000-7f36901ca000 r--p 00000000 08:01 879 /usr/lib/locale/locale-archive
7f36901ca000-7f369037c000 r-xp 00000000 08:01 269500 /lib/x86_64-linux-gnu/libc-2.15.so
7f369037c000-7f369057c000 ---p 001b2000 08:01 269500 /lib/x86_64-linux-gnu/libc-2.15.so
7f369057c000-7f3690580000 r--p 001b2000 08:01 269500 /lib/x86_64-linux-gnu/libc-2.15.so
7f3690580000-7f3690582000 rw-p 001b6000 08:01 269500 /lib/x86_64-linux-gnu/libc-2.15.so
7f3690582000-7f3690587000 rw-p 00000000 00:00 0
7f3690587000-7f36905a9000 r-xp 00000000 08:01 269502 /lib/x86_64-linux-gnu/ld-2.15.so
7f369079b000-7f369079e000 rw-p 00000000 00:00 0
7f369079f000-7f36907a0000 rw-p 00000000 00:00 0
7f36907a0000-7f36907a7000 r--s 00000000 08:01 8682 /usr/lib/x86_64-linux-gnu/gconv/gconv-modules.cache
7f36907a7000-7f36907a9000 rw-p 00000000 00:00 0
7f36907a9000-7f36907aa000 r--p 00022000 08:01 269502 /lib/x86_64-linux-gnu/ld-2.15.so
7f36907aa000-7f36907ac000 rw-p 00023000 08:01 269502 /lib/x86_64-linux-gnu/ld-2.15.so
7ffff88cc000-7ffff88ed000 rw-p 00000000 00:00 0 [stack]
7ffff8966000-7ffff8967000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
Aborted (core dumped)

Description: Ubuntu precise (development branch)
Release: 12.04

hddtemp:
  Installed: 0.3-beta15-51
  Candidate: 0.3-beta15-51
  Version table:
 *** 0.3-beta15-51 0
        500 http://gb.archive.ubuntu.com/ubuntu/ precise/universe amd64 Packages
        100 /var/lib/dpkg/status

[Gareth Bult (2-gareth)]

Just to expand a little, if I download the same source and compile with "-fno-stack-protector", the stack smashing issue vanishes but instead the program dies with a core dump.

..

7fea5a9d0000-7fea5a9d2000 rw-p 00023000 08:01 269502 /lib/x86_64-linux-gnu/ld-2.15.so
7fff18d5f000-7fff18d80000 rw-p 00000000 00:) = 1024
read(5, "00 0 [s"..., 1024) = 202
write(4, "00 0 [s"..., 20200 0 [stack]
7fff18dff000-7fff18e00000 r-xp 00000000 00:00 0 [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0 [vsyscall]
) = 202
read(5, "", 1024) = 0
close(5) = 0
rt_sigprocmask(SIG_UNBLOCK, [ABRT], NULL, 8) = 0
gettid() = 31311
tgkill(31311, 31311, SIGABRT) = 0
--- SIGABRT (Aborted) @ 0 (0) ---
+++ killed by SIGABRT (core dumped) +++
Aborted (core dumped)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.