[PATCH v3 0/4] ext4: fix use-after-free in ext4_xattr_set_entry

From: Baokun Li
Date: Wed Jun 15 2022 - 22:01:01 EST


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(-)

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2.31.1