Patch "ext4: correct the misjudgment in ext4_iget_extra_inode" has been added to the 5.4-stable tree

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This is a note to let you know that I've just added the patch titled

    ext4: correct the misjudgment in ext4_iget_extra_inode

to the 5.4-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     ext4-correct-the-misjudgment-in-ext4_iget_extra_inode.patch
and it can be found in the queue-5.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From fd7e672ea98b95b9d4c9dae316639f03c16a749d Mon Sep 17 00:00:00 2001
From: Baokun Li <libaokun1@xxxxxxxxxx>
Date: Thu, 16 Jun 2022 10:13:58 +0800
Subject: ext4: correct the misjudgment in ext4_iget_extra_inode

From: Baokun Li <libaokun1@xxxxxxxxxx>

commit fd7e672ea98b95b9d4c9dae316639f03c16a749d upstream.

Use the EXT4_INODE_HAS_XATTR_SPACE macro to more accurately
determine whether the inode have xattr space.

Cc: stable@xxxxxxxxxx
Signed-off-by: Baokun Li <libaokun1@xxxxxxxxxx>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@xxxxxxxxx>
Reviewed-by: Jan Kara <jack@xxxxxxx>
Link: https://lore.kernel.org/r/20220616021358.2504451-5-libaokun1@xxxxxxxxxx
Signed-off-by: Theodore Ts'o <tytso@xxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
 fs/ext4/inode.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/fs/ext4/inode.c
+++ b/fs/ext4/inode.c
@@ -4843,8 +4843,7 @@ static inline int ext4_iget_extra_inode(
 	__le32 *magic = (void *)raw_inode +
 			EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize;
 
-	if (EXT4_GOOD_OLD_INODE_SIZE + ei->i_extra_isize + sizeof(__le32) <=
-	    EXT4_INODE_SIZE(inode->i_sb) &&
+	if (EXT4_INODE_HAS_XATTR_SPACE(inode)  &&
 	    *magic == cpu_to_le32(EXT4_XATTR_MAGIC)) {
 		ext4_set_inode_state(inode, EXT4_STATE_XATTR);
 		return ext4_find_inline_data_nolock(inode);


Patches currently in stable-queue which might be from libaokun1@xxxxxxxxxx are

queue-5.4/ext4-correct-max_inline_xattr_value_size-computing.patch
queue-5.4/ext4-fix-use-after-free-in-ext4_xattr_set_entry.patch
queue-5.4/ext4-correct-the-misjudgment-in-ext4_iget_extra_inode.patch
queue-5.4/ext4-add-ext4_inode_has_xattr_space-macro-in-xattr.h.patch



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