Theodore Ts'o 503358ae01 ext4: avoid divide by zero when trying to mount a corrupted file system ...

If s_log_groups_per_flex is greater than 31, then groups_per_flex will
will overflow and cause a divide by zero error.  This can cause kernel
BUG if such a file system is mounted.

Thanks to Nageswara R Sastry for analyzing the failure and providing
an initial patch.

http://bugzilla.kernel.org/show_bug.cgi?id=14287

Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@kernel.org

2009-11-23 07:24:46 -05:00

..

acl.c

ext[234]: move over to 'check_acl' permission model

2009-09-08 11:09:04 -07:00

acl.h

ext[234]: move over to 'check_acl' permission model

2009-09-08 11:09:04 -07:00

balloc.c

ext4: open-code ext4_mb_update_group_info

2009-08-17 23:51:29 -04:00

bitmap.c

ext4: Change unsigned long to unsigned int

2008-11-05 00:14:04 -05:00

block_validity.c

ext4: Add a comprehensive block validity check to ext4_get_blocks()

2009-05-17 15:38:01 -04:00

dir.c

ext4: Define a new set of flags for ext4_get_blocks()

2009-05-14 00:58:52 -04:00

ext4_extents.h

ext4: Split uninitialized extents for direct I/O

2009-09-28 15:49:08 -04:00

ext4_jbd2.c

ext4: Assure that metadata blocks are written during fsync in no journal mode

2009-09-12 13:41:55 -04:00

ext4_jbd2.h

ext4: Handle nested ext4_journal_start/stop calls without a journal

2009-09-29 11:01:03 -04:00

ext4.h

ext4: skip conversion of uninit extents after direct IO if there isn't any

2009-11-10 10:48:04 -05:00

extents.c

ext4: Fix return value of ext4_split_unwritten_extents() to fix direct I/O

2009-11-06 04:01:23 -05:00

file.c

const: mark struct vm_struct_operations

2009-09-27 11:39:25 -07:00

fsync.c

ext4: async direct IO for holes and fallocate support

2009-09-28 15:48:29 -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 build warning when EXT4FS_DEBUG is on

2009-07-27 21:44:40 -04:00

inode.c

ext4: skip conversion of uninit extents after direct IO if there isn't any

2009-11-10 10:48:04 -05:00

ioctl.c

ext4: Return exchanged blocks count to user space in failure

2009-09-05 22:46:29 -04:00

Kconfig

ext4: drop ext4dev compat

2009-10-01 02:21:07 -04:00

Makefile

ext4: online defrag -- Add EXT4_IOC_MOVE_EXT ioctl

2009-06-17 19:24:03 -04:00

mballoc.c

ext4: Use tracepoints for mb_history trace file

2009-09-30 00:32:42 -04:00

mballoc.h

ext4: Use tracepoints for mb_history trace file

2009-09-30 00:32:42 -04:00

migrate.c

ext4: Split uninitialized extents for direct I/O

2009-09-28 15:49:08 -04:00

move_extent.c

ext4: EXT4_IOC_MOVE_EXT: Check for different original and donor inodes first

2009-09-28 15:58:29 -04:00

namei.c

ext4: fix potential buffer head leak when add_dirent_to_buf() returns ENOSPC

2009-11-23 07:25:49 -05:00

resize.c

ext4: Clarify the locking details in mballoc

2009-09-09 23:50:17 -04:00

super.c

ext4: avoid divide by zero when trying to mount a corrupted file system

2009-11-23 07:24:46 -05:00

symlink.c

ext4: Rename ext4dev to ext4

2008-10-10 20:02:48 -04:00

xattr_security.c

ext4: move headers out of include/linux

2008-04-29 18:13:32 -04:00

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: limit block allocations for indirect-block files to < 2^32

2009-09-16 14:45:10 -04:00

xattr.h

ext4: Rename ext4dev to ext4

2008-10-10 20:02:48 -04:00