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| author | Theodore Ts'o <tytso@mit.edu> | 2009-04-24 13:43:20 -0400 |
|---|---|---|
| committer | Theodore Ts'o <tytso@mit.edu> | 2009-04-24 13:43:20 -0400 |
| commit | 485c26ec70f823f2a9cf45982b724893e53a859e (patch) | |
| tree | 545ee089625b9b4131773eb26c57a51889deda78 /fs/ext4/resize.c | |
| parent | 0c8454f56623505a99463405fd7d5664adfbb094 (diff) | |
| download | linux-485c26ec70f823f2a9cf45982b724893e53a859e.tar.gz linux-485c26ec70f823f2a9cf45982b724893e53a859e.tar.bz2 linux-485c26ec70f823f2a9cf45982b724893e53a859e.zip | |
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>
Diffstat (limited to 'fs/ext4/resize.c')
0 files changed, 0 insertions, 0 deletions