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linux-2.6/fs
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Eric Sandeen f44ec6f3f8 limit minixfs printks on corrupted dir i_size 
This attempts to address CVE-2006-6058
http://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2006-6058

first reported at http://projects.info-pull.com/mokb/MOKB-17-11-2006.html

Essentially a corrupted minix dir inode reporting a very large
i_size will loop for a very long time in minix_readdir, minix_find_entry,
etc, because on EIO they just move on to try the next page.  This is
under the BKL, printk-storming as well.  This can lock up the machine
for a very long time.  Simply ratelimiting the printks gets things back
under control.  Make the message a bit more informative while we're here.

Signed-off-by: Eric Sandeen <sandeen@redhat.com>
Cc: Bodo Eggert <7eggert@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17 08:42:53 -07:00
..
9p 9PFS: clean up explicit check for mandatory locks 2007-10-09 18:32:46 -04:00
adfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
affs fs: mark nibblemap const 2007-10-17 08:42:47 -07:00
afs fs/afs/: possible cleanups 2007-10-17 08:42:50 -07:00
autofs
autofs4 fs/autofs4/inode.c: kmalloc + memset conversion to kzalloc 2007-10-17 08:42:50 -07:00
befs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
bfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
cifs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
coda Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
configfs mm: bdi init hooks 2007-10-17 08:42:45 -07:00
cramfs cramfs: error message about endianess 2007-10-17 08:42:53 -07:00
debugfs docbook: fix filesystems content 2007-10-15 17:56:36 -07:00
devpts
dlm Merge master.kernel.org:/pub/scm/linux/kernel/git/gregkh/driver-2.6 2007-10-12 15:49:37 -07:00
ecryptfs Clean up duplicate includes in fs/ecryptfs/ 2007-10-17 08:42:48 -07:00
efs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
exportfs
ext2 ext2/4: use is_power_of_2() 2007-10-17 08:42:53 -07:00
ext3 ext2/ext3/ext4: add block bitmap validation 2007-10-17 08:42:52 -07:00
ext4 ext2/4: use is_power_of_2() 2007-10-17 08:42:53 -07:00
fat Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
freevxfs
fuse Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
gfs2 Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
hfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
hfsplus Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
hostfs uml: fix hostfs style 2007-10-16 09:43:07 -07:00
hpfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
hppfs
hugetlbfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
isofs zisofs use mutex instead of semaphore 2007-10-17 08:42:47 -07:00
jbd Group short-lived and reclaimable kernel allocations 2007-10-16 09:43:00 -07:00
jbd2
jffs2 Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
jfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
lockd NFS/SUNRPC: use transport protocol naming 2007-10-09 17:17:53 -04:00
minix limit minixfs printks on corrupted dir i_size 2007-10-17 08:42:53 -07:00
msdos
ncpfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
nfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
nfs_common
nfsd fs/nfsd/export.c: make 3 functions static 2007-10-16 09:43:10 -07:00
nls
ntfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
ocfs2 Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
openpromfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
partitions fs/partitions/sun.c endianness annotations 2007-10-14 12:41:51 -07:00
proc report the per-irq statistics on all arches 2007-10-17 08:42:49 -07:00
qnx4 Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
ramfs mm: bdi init hooks 2007-10-17 08:42:45 -07:00
reiserfs fs/reiserfs/: cleanups 2007-10-17 08:42:46 -07:00
romfs fs/romfs/inode.c: trivial improvements 2007-10-17 08:42:47 -07:00
smbfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
sysfs mm: bdi init hooks 2007-10-17 08:42:45 -07:00
sysv Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
udf Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
ufs ufs: Fix mount check in ufs_fill_super() 2007-10-17 08:42:51 -07:00
vfat
xfs Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
aio.c AIO: fix cleanup in io_submit_one(...) 2007-10-08 12:58:14 -07:00
anon_inodes.c
attr.c
bad_inode.c
binfmt_aout.c core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe 2007-10-17 08:42:50 -07:00
binfmt_elf.c Add MMF_DUMP_ELF_HEADERS 2007-10-17 08:42:52 -07:00
binfmt_elf_fdpic.c core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe 2007-10-17 08:42:50 -07:00
binfmt_em86.c
binfmt_flat.c core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe 2007-10-17 08:42:50 -07:00
binfmt_misc.c
binfmt_script.c
binfmt_som.c core_pattern: ignore RLIMIT_CORE if core_pattern is a pipe 2007-10-17 08:42:50 -07:00
bio.c bio: make freeing of ->bi_io_vec conditional in bio_free() 2007-10-16 11:03:52 +02:00
block_dev.c Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
buffer.c mm: count reclaimable pages per BDI 2007-10-17 08:42:45 -07:00
char_dev.c mm: bdi init hooks 2007-10-17 08:42:45 -07:00
compat.c
compat_ioctl.c Clean up duplicate includes in fs/ 2007-10-17 08:42:48 -07:00
dcache.c clean out unused code in dentry pruning 2007-10-17 08:42:52 -07:00
dcookies.c
direct-io.c remove ZERO_PAGE 2007-10-16 09:42:53 -07:00
dnotify.c
dquot.c
drop_caches.c
eventfd.c
eventpoll.c
exec.c exec: remove unnecessary check for MNT_NOEXEC 2007-10-17 08:42:52 -07:00
fcntl.c
fifo.c
file.c
file_table.c fs: use kmem_cache_zalloc instead 2007-10-17 08:42:48 -07:00
filesystems.c
fs-writeback.c Fix warnings with !CONFIG_BLOCK 2007-10-10 09:25:57 +02:00
generic_acl.c
inode.c fs: remove the unused mempages parameter 2007-10-17 08:42:49 -07:00
inotify.c
inotify_user.c
internal.h
ioctl.c
ioprio.c
Kconfig Merge git://git.linux-nfs.org/pub/linux/nfs-2.6 2007-10-15 10:47:35 -07:00
Kconfig.binfmt
libfs.c fs: introduce write_begin, write_end, and perform_write aops 2007-10-16 09:42:55 -07:00
locks.c Slab API: remove useless ctor parameter and reorder parameters 2007-10-17 08:42:45 -07:00
Makefile
mbcache.c
mpage.c mm: buffered write cleanup 2007-10-16 09:42:54 -07:00
namei.c fix execute checking in permission() 2007-10-17 08:42:52 -07:00
namespace.c fs: remove the unused mempages parameter 2007-10-17 08:42:49 -07:00
nfsctl.c
no-block.c
open.c SELinux: Improve read/write performance 2007-10-17 08:59:31 +10:00
pipe.c sched: affine sync wakeups 2007-10-15 17:00:19 +02:00
pnode.c
pnode.h
posix_acl.c
quota.c
quota_v1.c
quota_v2.c
read_write.c Cleanup macros for distinguishing mandatory locks 2007-10-09 18:32:46 -04:00
read_write.h
readdir.c
select.c do_poll: return -EINTR when signalled 2007-10-17 08:42:48 -07:00
seq_file.c [FS] seq_file: Introduce the seq_open_private() 2007-10-10 16:55:33 -07:00
signalfd.c signalfd simplification 2007-09-20 13:19:59 -07:00
splice.c Merge branch 'for-linus' of git://git.kernel.dk/data/git/linux-2.6-block 2007-10-16 10:09:16 -07:00
stack.c
stat.c
super.c
sync.c
timerfd.c
utimes.c VFS: check nanoseconds in utimensat 2007-10-17 08:42:52 -07:00
xattr.c
xattr_acl.c