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4adb6ab3e0
linux/fs/ext4
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Kazuya Mio 4adb6ab3e0 ext4: FIBMAP ioctl causes BUG_ON due to handle EXT_MAX_BLOCKS 
When we try to get 2^32-1 block of the file which has the extent
(ee_block=2^32-2, ee_len=1) with FIBMAP ioctl, it causes BUG_ON
in ext4_ext_put_gap_in_cache().

To avoid the problem, ext4_map_blocks() needs to check the file logical block
number. ext4_ext_put_gap_in_cache() called via ext4_map_blocks() cannot
handle 2^32-1 because the maximum file logical block number is 2^32-2.

Note that ext4_ind_map_blocks() returns -EIO when the block number is invalid.
So ext4_map_blocks() should also return the same errno.

Signed-off-by: Kazuya Mio <k-mio@sx.jp.nec.com>
Signed-off-by: "Theodore Ts'o" <tytso@mit.edu>
Cc: stable@vger.kernel.org
2014-04-07 10:53:28 -04:00
..
acl.c ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
acl.h ext2/3/4: use generic posix ACL infrastructure 2014-01-25 23:58:19 -05:00
balloc.c ext4: don't count free clusters from a corrupt block group 2013-10-31 11:46:31 -04:00
bitmap.c ext4: Checksum the block bitmap properly with bigalloc enabled 2012-10-22 00:34:32 -04:00
block_validity.c fs/ext4: use rbtree postorder iteration helper instead of opencoding 2014-01-23 16:37:03 -08:00
dir.c fs/ext4: use rbtree postorder iteration helper instead of opencoding 2014-01-23 16:37:03 -08:00
ext4_extents.h ext4: isolate ext4_extents.h file 2013-08-28 14:47:06 -04:00
ext4_jbd2.c jbd2: improve error messages for inconsistent journal heads 2014-03-12 16:38:03 -04:00
ext4_jbd2.h ext4: Fix misspellings using 'codespell' tool 2013-08-28 14:40:12 -04:00
ext4.h ext4: make ext4_block_zero_page_range static 2014-03-24 15:09:16 -04:00
extents_status.c ext4: fix 64-bit number truncation warning 2014-04-07 10:18:56 -04:00
extents_status.h ext4: add ext4_es_store_pblock_status() 2014-02-19 20:15:15 -05:00
extents.c ext4: fix premature freeing of partial clusters split across leaf blocks 2014-04-01 19:49:30 -04:00
file.c fs/direct-io.c: remove some left over checks 2014-04-03 16:20:57 -07:00
fsync.c ext4: Fix fsync error handling after filesystem abort 2013-06-12 22:38:04 -04:00
hash.c ext4: reduce one "if" comparison in ext4_dirhash() 2013-02-01 22:33:21 -05:00
ialloc.c ext4: use prandom_u32() instead of get_random_bytes() 2013-11-08 00:14:53 -05:00
indirect.c ext4: isolate ext4_extents.h file 2013-08-28 14:47:06 -04:00
inline.c ext4: delete "set but not used" variables 2014-01-11 13:26:56 -05:00
inode.c ext4: FIBMAP ioctl causes BUG_ON due to handle EXT_MAX_BLOCKS 2014-04-07 10:53:28 -04:00
ioctl.c ext4: clean up error handling in swap_inode_boot_loader() 2014-02-17 20:44:36 -05:00
Kconfig ext4: fix Kconfig documentation for CONFIG_EXT4_DEBUG 2013-04-21 20:32:03 -04:00
Makefile ext4: Remove CONFIG_EXT4_FS_XATTR 2012-12-10 16:30:43 -05:00
mballoc.c ext4: remove unused ac_ex_scanned 2014-02-20 13:32:10 -05:00
mballoc.h ext4: remove unused ac_ex_scanned 2014-02-20 13:32:10 -05:00
migrate.c ext4: Fix misspellings using 'codespell' tool 2013-08-28 14:40:12 -04:00
mmp.c ext4: use prandom_u32() instead of get_random_bytes() 2013-11-08 00:14:53 -05:00
move_extent.c ext4: Add support FALLOC_FL_COLLAPSE_RANGE for fallocate 2014-02-23 15:18:59 -05:00
namei.c ext4: add cross rename support 2014-04-01 17:08:44 +02:00
page-io.c block: Abstract out bvec iterator 2013-11-23 22:33:47 -08:00
resize.c ext4: fix online resize with a non-standard blocks per group setting 2014-02-15 22:42:25 -05:00
super.c ext4: optimize Hurd tests when reading/writing inodes 2014-03-24 14:09:06 -04:00
symlink.c ext4: Remove CONFIG_EXT4_FS_XATTR 2012-12-10 16:30:43 -05:00
truncate.h ext4: move common truncate functions to header file 2011-06-27 19:16:04 -04:00
xattr_security.c Merge branch 'for_linus' into for_linus_merged 2012-01-10 11:54:07 -05:00
xattr_trusted.c ext2/3/4: delete unneeded includes of module.h 2012-01-09 13:52:10 +01:00
xattr_user.c ext2/3/4: delete unneeded includes of module.h 2012-01-09 13:52:10 +01:00
xattr.c ext4: each filesystem creates and uses its own mb_cache 2014-03-18 19:24:49 -04:00
xattr.h ext4: each filesystem creates and uses its own mb_cache 2014-03-18 19:24:49 -04:00