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Descriptor leak
From: |
schwab |
Subject: |
Descriptor leak |
Date: |
Wed, 19 Nov 2008 17:34:31 +0100 (CET) |
Configuration Information [Automatically generated, do not change]:
Machine: ia64
OS: linux-gnu
Compiler: gcc -I/usr/src/packages/BUILD/bash-3.2
-L/usr/src/packages/BUILD/bash-3.2/../readline-5.2
Compilation CFLAGS: -DPROGRAM='bash' -DCONF_HOSTTYPE='ia64'
-DCONF_OSTYPE='linux-gnu' -DCONF_MACHTYPE='ia64-suse-linux-gnu'
-DCONF_VENDOR='suse' -DLOCALEDIR='/usr/share/locale' -DPACKAGE='bash' -DSHELL
-DHAVE_CONFIG_H -I. -I. -I./include -I./lib -fmessage-length=0 -O2 -Wall
-D_FORTIFY_SOURCE=2 -fstack-protector -funwind-tables
-fasynchronous-unwind-tables -g -D_GNU_SOURCE -DRECYCLES_PIDS -Wall -g
-std=gnu89 -Wextra -Wno-unprototyped-calls -Wno-switch-enum -pipe -fPIE
-fprofile-use
uname output: Linux sykes 2.6.27.4-2.1-default #1 SMP Thu Oct 30 13:17:42 UTC
2008 ia64 ia64 ia64 GNU/Linux
Machine Type: ia64-suse-linux-gnu
Bash Version: 3.2
Patch Level: 39
Release Status: release
Description:
Bash leaks a descriptor to its children when executing a brace
enclosed compound list with a redirection that closes a
non-standard descriptor.
Repeat-By:
$ exec 4>&1
$ { /bin/ls /proc/self/fd/*; } 4<&-
/bin/ls: cannot access /proc/self/fd/255: No such file or directory
/bin/ls: cannot access /proc/self/fd/3: No such file or directory
/proc/self/fd/0 /proc/self/fd/1 /proc/self/fd/10 /proc/self/fd/2
/proc/self/fd/10 should not be open in the child.
- Descriptor leak,
schwab <=