Bug#659593: coreutils: *** glibc detected *** tac: double free or corruption (top): 0x000000000061b030 ***

2012-02-12 Thread Segfault in
Package: coreutils
Version: 8.5-1
Severity: important

$ tac */dev/null
*** glibc detected *** tac: double free or corruption (top): 0x0061b030 
***
=== Backtrace: =
/lib/libc.so.6(+0x71bd6)[0x7fb3b04d9bd6]
/lib/libc.so.6(cfree+0x6c)[0x7fb3b04de94c]
tac[0x402660]
/lib/libc.so.6(__libc_start_main+0xfd)[0x7fb3b0486c8d]
tac[0x401999]
=== Memory map: 
0040-00417000 r-xp  08:01 49671  
/usr/bin/tac
00617000-00618000 rw-p 00017000 08:01 49671  
/usr/bin/tac
00618000-0063b000 rw-p  00:00 0  [heap]
7fb3abdea000-7fb3abe0 r-xp  08:01 114705 
/lib/libgcc_s.so.1
7fb3abe0-7fb3abfff000 ---p 00016000 08:01 114705 
/lib/libgcc_s.so.1
7fb3abfff000-7fb3ac00 rw-p 00015000 08:01 114705 
/lib/libgcc_s.so.1
7fb3ac00-7fb3ac021000 rw-p  00:00 0 
7fb3ac021000-7fb3b000 ---p  00:00 0 
7fb3b01d6000-7fb3b0468000 r--p  08:01 49303  
/usr/lib/locale/locale-archive
7fb3b0468000-7fb3b05c1000 r-xp  08:01 114732 
/lib/libc-2.11.3.so
7fb3b05c1000-7fb3b07c ---p 00159000 08:01 114732 
/lib/libc-2.11.3.so
7fb3b07c-7fb3b07c4000 r--p 00158000 08:01 114732 
/lib/libc-2.11.3.so
7fb3b07c4000-7fb3b07c5000 rw-p 0015c000 08:01 114732 
/lib/libc-2.11.3.so
7fb3b07c5000-7fb3b07ca000 rw-p  00:00 0 
7fb3b07ca000-7fb3b07e8000 r-xp  08:01 114722 
/lib/ld-2.11.3.so
7fb3b0979000-7fb3b09ba000 rw-p  00:00 0 
7fb3b09db000-7fb3b09de000 rw-p  00:00 0 
7fb3b09e4000-7fb3b09e7000 rw-p  00:00 0 
7fb3b09e7000-7fb3b09e8000 r--p 0001d000 08:01 114722 
/lib/ld-2.11.3.so
7fb3b09e8000-7fb3b09e9000 rw-p 0001e000 08:01 114722 
/lib/ld-2.11.3.so
7fb3b09e9000-7fb3b09ea000 rw-p  00:00 0 
7fffe5fe3000-7fffe5ff7000 rw-p  00:00 0  [stack]
7fffe5fff000-7fffe600 r-xp  00:00 0  [vdso]
ff60-ff601000 r-xp  00:00 0  
[vsyscall]
Аварийный останов


-- System Information:
Debian Release: 6.0.4
  APT prefers stable
  APT policy: (990, 'stable'), (500, 'oldstable')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.32.36-228-scalaxy (SMP w/16 CPU cores)
Locale: LANG=ru_RU.UTF-8, LC_CTYPE=ru_RU.UTF-8 (charmap=UTF-8)
Shell: /bin/sh linked to /bin/dash

Versions of packages coreutils depends on:
ii  libacl1   2.2.49-4   Access control list shared library
ii  libattr1  1:2.4.44-2 Extended attribute shared library
ii  libc6 2.11.3-2   Embedded GNU C Library: Shared lib
ii  libselinux1   2.0.96-1   SELinux runtime shared libraries

coreutils recommends no packages.

coreutils suggests no packages.

-- no debconf information



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Bug#659593: coreutils: *** glibc detected *** tac: double free or corruption (top): 0x000000000061b030 ***

2012-02-12 Thread Jim Meyering
Segfault in wrote:

 Package: coreutils
 Version: 8.5-1
 Severity: important

 $ tac */dev/null
 *** glibc detected *** tac: double free or corruption (top):
 0x0061b030 ***

Thanks for the report.
That was fixed upstream in coreutils-8.6 (latest is 8.15):

* Noteworthy changes in release 8.6 (2010-10-15) [stable]
...
  tac would perform a double-free when given an input line longer than 
16KiB.
  [bug introduced in coreutils-8.3]



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