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59cd0cbc75
linux/fs/proc
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Darrick J. Wong 59cd0cbc75 Fix race between proc_readdir and remove_proc_entry 
Fix the following race:

proc_readdir				remove_proc_entry
============				=================

spin_lock(&proc_subdir_lock);
[choose PDE to start filldir from]
spin_unlock(&proc_subdir_lock);
					spin_lock(&proc_subdir_lock);
					[find PDE]
					[free PDE, refcount is 0]
					spin_unlock(&proc_subdir_lock);
		    /* boom */
if (filldir(dirent, de->name, ...

[de_put on error path --adobriyan]
Signed-off-by: Darrick J. Wong <djwong@us.ibm.com>
Signed-off-by: Alexey Dobriyan <adobriyan@sw.ru>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-05-08 11:15:02 -07:00
..
array.c reduce size of task_struct on 64-bit machines 2007-05-08 11:14:58 -07:00
base.c Allow access to /proc/$PID/fd after setuid() 2007-05-08 11:14:58 -07:00
generic.c Fix race between proc_readdir and remove_proc_entry 2007-05-08 11:15:02 -07:00
inode-alloc.txt Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
inode.c Fix race between proc_get_inode() and remove_proc_entry() 2007-05-08 11:15:01 -07:00
internal.h [PATCH] proc: fix linkage with CONFIG_SYSCTL=y, CONFIG_PROC_SYSCTL=n 2007-04-02 10:06:08 -07:00
kcore.c [PATCH] elf: fix kcore note size calculation 2006-12-07 08:39:38 -08:00
kmsg.c [PATCH] Make most file operations structs in fs/ const 2006-03-28 09:16:06 -08:00
Makefile [PATCH] Fix kernel build with EMBEDDED & PROC_FS & !PROC_SYSCTL 2007-03-27 09:05:16 -07:00
mmu.c [PATCH] fix impossible VmallocChunk 2005-05-17 07:59:10 -07:00
nommu.c [PATCH] mark struct file_operations const 6 2007-02-12 09:48:45 -08:00
proc_devtree.c [POWERPC] Make struct property's value a void * 2007-04-13 03:55:18 +10:00
proc_misc.c mm/slab.c: proper prototypes 2007-05-07 12:12:52 -07:00
proc_sysctl.c [PATCH] sysctl: hide the sysctl proc inodes from selinux 2007-02-14 08:10:00 -08:00
proc_tty.c [PATCH] mark struct file_operations const 6 2007-02-12 09:48:45 -08:00
root.c [PATCH] proc: fix linkage with CONFIG_SYSCTL=y, CONFIG_PROC_SYSCTL=n 2007-04-02 10:06:08 -07:00
task_mmu.c smaps: add clear_refs file to clear reference 2007-05-07 12:12:52 -07:00
task_nommu.c [PATCH] mark struct file_operations const 6 2007-02-12 09:48:45 -08:00
vmcore.c [PATCH] i386: Allow i386 crash kernels to handle x86_64 dumps 2007-05-02 19:27:09 +02:00