nautilus abnormal ressource usage reading some specific directory content

Binary package hint: nautilus

Running nautilus version "GNOME nautilus 2.20.0", nautilus RAM consumption grows and CPU usage is about 80 % reading this directory content:

# cd /srv/tmp/MU
# ls -l /srv/tmp/MU
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Angel Heart
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Apocalypto
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Cliff Martinez
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Collateral
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Come See The Paradise
-rw-r--r-- 1 root root 0 2008-01-13 18:40 Corner Stone Cues - Requiem For A Tower.mp3
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Crash
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Dimitri Tiomkin
-rw-r--r-- 1 root root 0 2008-01-13 18:40 Dumb & Dumber - Crash (by The Primitives).mp3
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Gustavo Santaolalla
-rw-r--r-- 1 root root 0 2008-01-13 18:40 Hannibal - Vide Cor Meum (by Patrick Cassidy).mp3
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Hans Zimmer
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Heat
-rw-r--r-- 1 root root 0 2008-01-13 18:40 Human Traffic - Kittens (by Underworld).mp3
-rw-r--r-- 1 root root 0 2008-01-13 18:40 Inside Man - Chaiyya Chaiyya Bollywood Joint.mp3
drwxr-xr-x 2 root root 48 2008-01-13 18:40 John Murphy
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Leviathan
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Lord of War
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Steve Jablonsky
-rw-r--r-- 1 root root 0 2008-01-13 18:40 Syriana.mp3
-rw-r--r-- 1 root root 0 2008-01-13 18:40 The Day After Tomorrow.mp3
-rw-r--r-- 1 root root 0 2008-01-13 18:40 The Flight Of The Phoenix - Heat Dream.mp3
drwxr-xr-x 2 root root 48 2008-01-13 18:40 The Last Of The Mohicans
drwxr-xr-x 2 root root 48 2008-01-13 18:40 The Wild Bunch
drwxr-xr-x 2 root root 48 2008-01-13 18:40 Traffic
-rw-r--r-- 1 root root 0 2008-01-13 18:40 Volver - Dos en la Furgoneta.mp3

$ nautilus /srv/tmp/MU &
Initializing gnome-mount extension
$ top -p $(pidof nautilus)
PID USER PR NI VIRT RES SHR S %CPU %MEM TIME+ COMMAND
13283 xxxxx 25 0 458m 302m 11m R 84.1 60.1 6:06.32 nautilus

Moving some files or directories from within /srv/tmp/MU does not trigger the bug.

# mv Steve\ Jablonsky/ ..
$ top -p $(pidof nautilus)
..
13386 xxxxx 16 0 60996 23m 14m S 0.0 4.7 0:01.21 nautilus

Renaming mp3 files does it too.
(# mv ../Steve* .)
# rename 's,mp3,mp3.jkl,g' *mp3
$ top -p $(pidof nautilus)
..
13437 xxxxx 15 0 57052 27m 14m S 0.0 5.4 0:01.26 nautilus

cpu model name : AMD Athlon(tm) XP 2000+
DISTRIB_CODENAME=gutsy

This looks like a memory leak on mp3 directory content reading. I suppose that this bug may happen on some other directory content.
This bug can be considered as a dos security issue since this directory content may be downloaded from any peer to peer network package file.

Note:

# strace nautilus /srv/tmp/MU |tee -a /home/ludovic/nautilus.bug.strace
[...]
socket(PF_FILE, SOCK_STREAM, 0) = 3
[...]
write(3, "\2\n\4\0]\1\340\0\2\0\0\0\377\377\377\0\f\0\7\0]\1\340"..., 16376) = 16376
write(3, "\2\n\4\0]\1\340\0\2\0\0\0\377\377\377\0\2\0\4\0\257\0\340"..., 16380) = 16380
write(3, "\f\n\7\0\\\1\340\0\17\0\0\0\0\0\0\0|\0\0\0\217\2\0\0\0"..., 16376) = 16376
write(3, "\2\n\4\0\257\0\340\0\2\0\0\0\347\353\357\0\2\0\4\0]\1\340"..., 16364) = 16364
write(3, "\f\n\7\0]\1\340\0\17\0\0\0\0\0\0\0\0\0\0\0\220\2\0\0\21"..., 16376) = 16376
write(3, "\2\n\4\0]\1\340\0\2\0\0\0\377\377\377\0\f\0\7\0]\1\340"..., 16376) = 16376
write(3, "\2\n\4\0]\1\340\0\2\0\0\0\377\377\377\0\2\0\4\0\257\0\340"..., 16380) = 16380
write(3, "\f\n\7\0\\\1\340\0\17\0\0\0\0\0\0\0|\0\0\0\217\2\0\0\0"..., 16376) = 16376
[...]
read(3, "\26\17\304$]\1\340\0]\1\340\0\0\0\0\0\0\0\0\0\236\2\21"..., 32) = 32
read(3, "\26\17\307$\\\1\340\0\\\1\340\0W\1\340\0\0\0|\0\217\2\0"..., 32) = 32
read(3, "\26\17\312$]\1\340\0]\1\340\0\0\0\0\0\0\0\0\0\220\2\21"..., 32) = 32
read(3, "\26\17\314$]\1\340\0]\1\340\0\0\0\0\0\0\0\0\0\217\2\0\2"..., 32) = 32
read(3, "\26\17\317$\\\1\340\0\\\1\340\0W\1\340\0\0\0|\0\236\2\0"..., 32) = 32
read(3, "\26\17\323$]\1\340\0]\1\340\0\0\0\0\0\0\0\0\0\236\2\0\2"..., 32) = 32
read(3, "\26\17\325$]\1\340\0]\1\340\0\0\0\0\0\0\0\0\0\236\2\21"..., 32) = 32
read(3, "\26\17\330$\\\1\340\0\\\1\340\0W\1\340\0\0\0|\0\217\2\0"..., 32) = 32
read(3, "\26\17\333$]\1\340\0]\1\340\0\0\0\0\0\0\0\0\0\220\2\21"..., 32) = 32
read(3, "\26\17\335$]\1\340\0]\1\340\0\0\0\0\0\0\0\0\0\217\2\0\2"..., 32) = 32
read(3, "\26\17\340$\\\1\340\0\\\1\340\0W\1\340\0\0\0|\0\236\2\0"..., 32) = 32
read(3, "\26\17\344$]\1\340\0]\1\340\0\0\0\0\0\0\0\0\0\236\2\0\2"..., 32) = 32

[indefinite socket reading ..]

# rename 's,mp3,mp3.jkl,g' *mp3
# strace nautilus /srv/tmp/MU |tee -a /home/ludovic/nautilus.strace
[no indefinite socket reading ..]

Sahabia.