Ming Lei 991f76f837 sysfs: fix race between readdir and lseek ...

While readdir() is running, lseek() may set filp->f_pos as zero,
then may leave filp->private_data pointing to one sysfs_dirent
object without holding its reference counter, so the sysfs_dirent
object may be used after free in next readdir().

This patch holds inode->i_mutex to avoid the problem since
the lock is always held in readdir path.

Reported-by: Dave Jones <davej@redhat.com>
Tested-by: Sasha Levin <levinsasha928@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Ming Lei <ming.lei@canonical.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2013-03-20 16:53:42 -07:00

..

9p

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

adfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

affs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

afs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

autofs4

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

befs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

bfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

btrfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mason/linux-btrfs

2013-03-17 11:04:14 -07:00

cachefiles

…

ceph

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

cifs

fs: Limit sys_mount to only request filesystem modules. (Part 3)

2013-03-11 07:09:48 -07:00

coda

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

configfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

cramfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

debugfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

devpts

fs: Limit sys_mount to only request filesystem modules (Part 2).

2013-03-07 01:08:55 -08:00

dlm

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ecryptfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2013-03-09 16:51:13 -08:00

efs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

exofs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

exportfs

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ext2

ext2: Fix BUG_ON in evict() on inode deletion

2013-03-13 15:23:44 +01:00

ext3

ext3: Fix format string issues

2013-03-11 22:05:56 +01:00

ext4

fs: Readd the fs module aliases.

2013-03-12 18:55:21 -07:00

f2fs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

fat

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

freevxfs

fs: Readd the fs module aliases.

2013-03-12 18:55:21 -07:00

fscache

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

fuse

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

gfs2

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

hfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

hfsplus

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

hostfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace

2013-03-13 15:47:50 -07:00

hpfs

fs: Limit sys_mount to only request filesystem modules. (Part 3)

2013-03-11 07:09:48 -07:00

hppfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

hugetlbfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

isofs

fs: Readd the fs module aliases.

2013-03-12 18:55:21 -07:00

jbd

…

jbd2

jbd2: fix ERR_PTR dereference in jbd2__journal_start

2013-03-02 17:08:46 -05:00

jffs2

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

jfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

lockd

Merge branch 'for-3.9' of git://linux-nfs.org/~bfields/linux

2013-02-28 18:02:55 -08:00

logfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

minix

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

ncpfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

nfs

fs: Readd the fs module aliases.

2013-03-12 18:55:21 -07:00

nfs_common

nfs_common: Update the translation between nfsv3 acls linux posix acls

2013-02-13 06:15:14 -08:00

nfsd

nfsd: convert to idr_alloc()

2013-03-13 15:21:45 -07:00

nilfs2

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

nls

…

notify

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

ntfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

ocfs2

fs: Limit sys_mount to only request filesystem modules (Part 2).

2013-03-07 01:08:55 -08:00

omfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

openpromfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

proc

proc: Use nd_jump_link in proc_ns_follow_link

2013-03-09 00:14:45 -08:00

pstore

A few fixes to reduce places where pstore might hang

2013-02-21 09:38:18 -08:00

qnx4

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

qnx6

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

quota

quota: add missing use of dq_data_lock in __dquot_initialize

2013-03-11 22:05:56 +01:00

ramfs

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-02-26 20:16:07 -08:00

reiserfs

reiserfs: Use kstrdup instead of kmalloc/strcpy

2013-03-11 22:05:57 +01:00

romfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

squashfs

fs: Limit sys_mount to only request filesystem modules. (Part 3)

2013-03-11 07:09:48 -07:00

sysfs

sysfs: fix race between readdir and lseek

2013-03-20 16:53:42 -07:00

sysv

fs: Readd the fs module aliases.

2013-03-12 18:55:21 -07:00

ubifs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

udf

fs: Limit sys_mount to only request filesystem modules. (Part 3)

2013-03-11 07:09:48 -07:00

ufs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

xfs

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

aio.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

anon_inodes.c

get_empty_filp()/alloc_file() leave both ->f_pos and ->f_version zero

2013-02-26 02:46:11 -05:00

attr.c

…

bad_inode.c

…

binfmt_aout.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

binfmt_elf_fdpic.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-02-26 20:16:07 -08:00

binfmt_elf.c

ImgTec Meta architecture changes for v3.9-rc1

2013-03-03 12:06:09 -08:00

binfmt_em86.c

…

binfmt_flat.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

binfmt_misc.c

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

binfmt_script.c

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binfmt_som.c

…

bio-integrity.c

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bio.c

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block_dev.c

Merge branch 'for-3.9/core' of git://git.kernel.dk/linux-block

2013-02-28 12:52:24 -08:00

buffer.c

Merge branch 'for-3.9/core' of git://git.kernel.dk/linux-block

2013-02-28 12:52:24 -08:00

char_dev.c

…

compat_binfmt_elf.c

…

compat_ioctl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

compat.c

Fix: compat_rw_copy_check_uvector() misuse in aio, readv, writev, and security keys

2013-03-12 11:05:45 -07:00

coredump.c

coredump: remove redundant defines for dumpable states

2013-02-27 19:10:11 -08:00

coredump.h

…

dcache.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

dcookies.c

…

direct-io.c

fs: Fix possible use-after-free with AIO

2013-02-22 23:31:36 -05:00

drop_caches.c

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eventfd.c

…

eventpoll.c

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exec.c

coredump: remove redundant defines for dumpable states

2013-02-27 19:10:11 -08:00

fcntl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

fhandle.c

…

fifo.c

…

file_table.c

cache the value of file_inode() in struct file

2013-03-01 19:48:30 -05:00

file.c

locking: Various static lock initializer fixes

2013-02-19 08:42:45 +01:00

filesystems.c

fs: Limit sys_mount to only request filesystem modules.

2013-03-03 19:36:31 -08:00

fs_struct.c

constify path_get/path_put and fs_struct.c stuff

2013-03-01 23:51:07 -05:00

fs-writeback.c

2 writeback fixes

2013-02-28 13:21:44 -08:00

generic_acl.c

…

inode.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

internal.h

constify path_get/path_put and fs_struct.c stuff

2013-03-01 23:51:07 -05:00

ioctl.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

ioprio.c

…

Kconfig

…

Kconfig.binfmt

…

libfs.c

…

locks.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

Makefile

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mbcache.c

…

mount.h

…

mpage.c

…

namei.c

vfs: don't BUG_ON() if following a /proc fd pseudo-symlink results in a symlink

2013-03-08 09:03:07 -08:00

namespace.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

no-block.c

…

open.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-03-03 13:23:03 -08:00

pipe.c

vfs: fix pipe counter breakage

2013-03-12 08:29:17 -07:00

pnode.c

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pnode.h

…

posix_acl.c

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proc_namespace.c

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read_write.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/signal

2013-03-02 08:34:06 -08:00

read_write.h

…

readdir.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

select.c

sched/rt: Move rt specific bits into new header file

2013-02-07 20:51:08 +01:00

seq_file.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

2013-03-03 13:23:03 -08:00

signalfd.c

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splice.c

export kernel_write(), convert open-coded instances

2013-02-26 02:46:11 -05:00

stack.c

…

stat.c

switch vfs_getattr() to struct path

2013-02-26 02:46:08 -05:00

statfs.c

…

super.c

hlist: drop the node parameter from iterators

2013-02-27 19:10:24 -08:00

sync.c

new helper: file_inode(file)

2013-02-22 23:31:31 -05:00

timerfd.c

compat: restore timerfd settime and gettime compat syscalls

2013-03-02 09:35:13 -05:00

utimes.c

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xattr_acl.c

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xattr.c

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