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485c26ec70
linux/fs/ext4
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Theodore Ts'o 485c26ec70 ext4: Fix softlockup caused by illegal i_file_acl value in on-disk inode 
If the block containing external extended attributes (which is stored
in i_file_acl and i_file_acl_high) is larger than the on-disk
filesystem, the process which tried to access the extended attributes
will endlessly issue kernel printks complaining that
"__find_get_block_slow() failed", locking up that CPU until the system
is forcibly rebooted.

So when we read in the inode, make sure the i_file_acl value is legal,
and if not, flag the filesystem as being corrupted.

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
2009-04-24 13:43:20 -04:00
..
acl.c New helper - current_umask() 2009-03-31 23:00:26 -04:00
acl.h ext4: Rename ext4dev to ext4 2008-10-10 20:02:48 -04:00
balloc.c ext4: Use lowercase names of quota functions 2009-03-26 02:18:36 +01:00
bitmap.c ext4: Change unsigned long to unsigned int 2008-11-05 00:14:04 -05:00
dir.c ext4: New rec_len encoding for very large blocksizes 2009-02-14 23:01:36 -05:00
ext4_extents.h ext4: Validate extent details only when read from the disk 2009-03-27 16:39:58 -04:00
ext4_i.h ext4: New inode/block allocation algorithms for flex_bg filesystems 2009-03-12 12:18:34 -04:00
ext4_jbd2.c ext4: Allow ext4 to run without a journal 2009-01-07 00:06:22 -05:00
ext4_jbd2.h ext4: Remove "extents" mount option 2009-01-06 14:53:16 -05:00
ext4_sb.h ext4: Add sysfs support 2009-03-31 09:10:09 -04:00
ext4.h Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2009-04-01 10:57:49 -07:00
extents.c Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4 2009-04-24 08:37:40 -07:00
file.c ext4: Fix discard of inode prealloc space with delayed allocation. 2009-03-27 22:36:43 -04:00
fsync.c ext4: Add debugging markers that can be used by systemtap 2008-10-05 20:50:06 -04:00
group.h ext4: Rename read_block_bitmap() to ext4_read_block_bitmap() 2008-07-11 19:27:31 -04:00
hash.c ext4: Add support for non-native signed/unsigned htree hash algorithms 2008-10-28 13:21:44 -04:00
ialloc.c ext4: Fix potential inode allocation soft lockup in Orlov allocator 2009-04-22 21:00:36 -04:00
inode.c ext4: Fix softlockup caused by illegal i_file_acl value in on-disk inode 2009-04-24 13:43:20 -04:00
ioctl.c ext4: add EXT4_IOC_ALLOC_DA_BLKS ioctl 2009-02-26 01:04:07 -05:00
Kconfig trivial: fix typos/grammar errors in Kconfig texts 2009-03-30 15:22:01 +02:00
Makefile ext4: Rename ext4dev to ext4 2008-10-10 20:02:48 -04:00
mballoc.c ext4: fix locking typo in mballoc which could cause soft lockup hangs 2009-03-27 19:43:21 -04:00
mballoc.h ext4: Rename pa_linear to pa_type 2009-03-27 17:16:58 -04:00
migrate.c ext4: Fix NULL dereference in ext4_ext_migrate()'s error handling 2009-02-15 20:02:19 -05:00
namei.c ext4: Use lowercase names of quota functions 2009-03-26 02:18:36 +01:00
namei.h
resize.c ext4: Use atomic_t's in struct flex_groups 2009-03-04 19:09:10 -05:00
super.c ext4: check block device size on mount 2009-04-07 14:07:47 -04:00
symlink.c ext4: Rename ext4dev to ext4 2008-10-10 20:02:48 -04:00
xattr_security.c
xattr_trusted.c ext4: remove double definitions of xattr macros 2008-07-11 19:27:31 -04:00
xattr_user.c ext4: remove double definitions of xattr macros 2008-07-11 19:27:31 -04:00
xattr.c ext4: Use lowercase names of quota functions 2009-03-26 02:18:36 +01:00
xattr.h ext4: Rename ext4dev to ext4 2008-10-10 20:02:48 -04:00