Arch Linux

Description:
calling dhcpcd on an interface dhcpcd crashes. It always worked till 5.5.4 version.

Additional info:
* version 5.5.5-1

*** glibc detected *** dhcpcd: double free or corruption (fasttop): 0x08980a20 ***
======= Backtrace: =========
/lib/libc.so.6(+0x73842)[0xb7587842]
dhcpcd[0x8054a54]
dhcpcd[0x8056395]
dhcpcd[0x8051000]
dhcpcd[0x8059a1b]
dhcpcd[0x80593e9]
dhcpcd[0x804f0a0]
dhcpcd[0x805259c]
dhcpcd[0x804a005]
/lib/libc.so.6(__libc_start_main+0xf3)[0xb752d483]
dhcpcd[0x804a501]
======= Memory map: ========
08048000-08061000 r-xp 00000000 fe:01 8980 /sbin/dhcpcd
08061000-08062000 r--p 00018000 fe:01 8980 /sbin/dhcpcd
08062000-08063000 rw-p 00019000 fe:01 8980 /sbin/dhcpcd
08063000-08064000 rw-p 00000000 00:00 0
0897d000-0899f000 rw-p 00000000 00:00 0 [heap]
b74ab000-b74c7000 r-xp 00000000 fe:01 19164 /usr/lib/libgcc_s.so.1
b74c7000-b74c8000 rw-p 0001b000 fe:01 19164 /usr/lib/libgcc_s.so.1
b74f7000-b74f9000 rw-p 00000000 00:00 0
b74f9000-b7510000 r-xp 00000000 fe:01 17822 /lib/libpthread-2.15.so
b7510000-b7511000 r--p 00016000 fe:01 17822 /lib/libpthread-2.15.so
b7511000-b7512000 rw-p 00017000 fe:01 17822 /lib/libpthread-2.15.so
b7512000-b7514000 rw-p 00000000 00:00 0
b7514000-b76b0000 r-xp 00000000 fe:01 17874 /lib/libc-2.15.so
b76b0000-b76b2000 r--p 0019c000 fe:01 17874 /lib/libc-2.15.so
b76b2000-b76b3000 rw-p 0019e000 fe:01 17874 /lib/libc-2.15.so
b76b3000-b76b6000 rw-p 00000000 00:00 0
b76b6000-b76bd000 r-xp 00000000 fe:01 17832 /lib/librt-2.15.so
b76bd000-b76be000 r--p 00006000 fe:01 17832 /lib/librt-2.15.so
b76be000-b76bf000 rw-p 00007000 fe:01 17832 /lib/librt-2.15.so
b76ed000-b76ef000 rw-p 00000000 00:00 0
b76ef000-b76f0000 r-xp 00000000 00:00 0 [vdso]
b76f0000-b7710000 r-xp 00000000 fe:01 17886 /lib/ld-2.15.so
b7710000-b7711000 r--p 0001f000 fe:01 17886 /lib/ld-2.15.so
b7711000-b7712000 rw-p 00020000 fe:01 17886 /lib/ld-2.15.so
bf960000-bf981000 rw-p 00000000 00:00 0 [stack]

Steps to reproduce:
just execute: dhcpcd eth0