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    Subject[131/272] ext4: fix memory leak in ext4_free_branches
    2.6.37-stable review patch.  If anyone has any objections, please let us know.


    From: Theodore Ts'o <>

    commit 1c5b9e9065567876c2d4a7a16d78f0fed154a5bf upstream.

    Commit 40389687 moved a call to ext4_forget() out of
    ext4_free_branches and let ext4_free_blocks() handle calling
    bforget(). But that change unfortunately did not replace the call to
    ext4_forget() with brelse(), which was needed to drop the in-use count
    of the indirect block's buffer head, which lead to a memory leak when
    deleting files that used indirect blocks. Fix this.

    Thanks to Hugh Dickins for pointing this out.

    Signed-off-by: "Theodore Ts'o" <>
    Signed-off-by: Greg Kroah-Hartman <>

    fs/ext4/inode.c | 1 +
    1 file changed, 1 insertion(+)

    --- a/fs/ext4/inode.c
    +++ b/fs/ext4/inode.c
    @@ -4349,6 +4349,7 @@ static void ext4_free_branches(handle_t
    (__le32 *) bh->b_data,
    (__le32 *) bh->b_data + addr_per_block,
    + brelse(bh);

    * Everything below this this pointer has been

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      Last update: 2011-02-16 02:33    [W:0.019 / U:23.324 seconds]
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