linux-kernel - [PATCH v3 0/4] ext4: fix use-after-free in ext4_xattr_set

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Message-ID: <20220616021358.2504451-1-libaokun1@huawei.com>
Date:   Thu, 16 Jun 2022 10:13:54 +0800
From:   Baokun Li <libaokun1@...wei.com>
To:     <linux-ext4@...r.kernel.org>
CC:     <tytso@....edu>, <adilger.kernel@...ger.ca>, <jack@...e.cz>,
        <ritesh.list@...il.com>, <lczerner@...hat.com>,
        <enwlinux@...il.com>, <linux-kernel@...r.kernel.org>,
        <yi.zhang@...wei.com>, <yebin10@...wei.com>, <yukuai3@...wei.com>,
        <libaokun1@...wei.com>
Subject: [PATCH v3 0/4] ext4: fix use-after-free in ext4_xattr_set_entry

This series adds a macro for whether there is space for xattr in
ext4 inode, and fixes some problems with this macro.

V1->V2:
	Split the patch to make the logic clearer.
	Rename macro to EXT4_INODE_HAVE_XATTR_SPACE.
V2->V3:
	Rename macro to EXT4_INODE_HAS_XATTR_SPACE.

Baokun Li (4):
  ext4: add EXT4_INODE_HAS_XATTR_SPACE macro in xattr.h
  ext4: fix use-after-free in ext4_xattr_set_entry
  ext4: correct max_inline_xattr_value_size computing
  ext4: correct the misjudgment in ext4_iget_extra_inode

 fs/ext4/inline.c |  3 +++
 fs/ext4/inode.c  |  3 +--
 fs/ext4/xattr.c  |  6 ++++--
 fs/ext4/xattr.h  | 13 +++++++++++++
 4 files changed, 21 insertions(+), 4 deletions(-)

-- 
2.31.1