diff --git a/fs/ext4/inode.c b/fs/ext4/inode.c index 89abac7efd19..ef85b563d5dc 100644 --- a/fs/ext4/inode.c +++ b/fs/ext4/inode.c @@ -4562,6 +4562,11 @@ static inline int ext4_iget_extra_inode(struct inode *inode, *magic == cpu_to_le32(EXT4_XATTR_MAGIC)) { int err; + err = xattr_check_inode(inode, IHDR(inode, raw_inode), + ITAIL(inode, raw_inode)); + if (err) + return err; + ext4_set_inode_state(inode, EXT4_STATE_XATTR); err = ext4_find_inline_data_nolock(inode); if (!err && ext4_has_inline_data(inode)) diff --git a/fs/ext4/xattr.c b/fs/ext4/xattr.c index 5b7a1f4b6abb..84aa9dd856d8 100644 --- a/fs/ext4/xattr.c +++ b/fs/ext4/xattr.c @@ -263,7 +263,7 @@ __ext4_xattr_check_block(struct inode *inode, struct buffer_head *bh, __ext4_xattr_check_block((inode), (bh), __func__, __LINE__) -static int +int __xattr_check_inode(struct inode *inode, struct ext4_xattr_ibody_header *header, void *end, const char *function, unsigned int line) { @@ -280,9 +280,6 @@ __xattr_check_inode(struct inode *inode, struct ext4_xattr_ibody_header *header, return error; } -#define xattr_check_inode(inode, header, end) \ - __xattr_check_inode((inode), (header), (end), __func__, __LINE__) - static int xattr_find_entry(struct inode *inode, struct ext4_xattr_entry **pentry, void *end, int name_index, const char *name, int sorted) @@ -600,9 +597,6 @@ ext4_xattr_ibody_get(struct inode *inode, int name_index, const char *name, raw_inode = ext4_raw_inode(&iloc); header = IHDR(inode, raw_inode); end = ITAIL(inode, raw_inode); - error = xattr_check_inode(inode, header, end); - if (error) - goto cleanup; entry = IFIRST(header); error = xattr_find_entry(inode, &entry, end, name_index, name, 0); if (error) @@ -734,7 +728,6 @@ ext4_xattr_ibody_list(struct dentry *dentry, char *buffer, size_t buffer_size) struct ext4_xattr_ibody_header *header; struct ext4_inode *raw_inode; struct ext4_iloc iloc; - void *end; int error; if (!ext4_test_inode_state(inode, EXT4_STATE_XATTR)) @@ -744,14 +737,9 @@ ext4_xattr_ibody_list(struct dentry *dentry, char *buffer, size_t buffer_size) return error; raw_inode = ext4_raw_inode(&iloc); header = IHDR(inode, raw_inode); - end = ITAIL(inode, raw_inode); - error = xattr_check_inode(inode, header, end); - if (error) - goto cleanup; error = ext4_xattr_list_entries(dentry, IFIRST(header), buffer, buffer_size); -cleanup: brelse(iloc.bh); return error; } @@ -819,7 +807,6 @@ int ext4_get_inode_usage(struct inode *inode, qsize_t *usage) struct ext4_xattr_ibody_header *header; struct ext4_xattr_entry *entry; qsize_t ea_inode_refs = 0; - void *end; int ret; lockdep_assert_held_read(&EXT4_I(inode)->xattr_sem); @@ -830,10 +817,6 @@ int ext4_get_inode_usage(struct inode *inode, qsize_t *usage) goto out; raw_inode = ext4_raw_inode(&iloc); header = IHDR(inode, raw_inode); - end = ITAIL(inode, raw_inode); - ret = xattr_check_inode(inode, header, end); - if (ret) - goto out; for (entry = IFIRST(header); !IS_LAST_ENTRY(entry); entry = EXT4_XATTR_NEXT(entry)) @@ -2230,9 +2213,6 @@ int ext4_xattr_ibody_find(struct inode *inode, struct ext4_xattr_info *i, is->s.here = is->s.first; is->s.end = ITAIL(inode, raw_inode); if (ext4_test_inode_state(inode, EXT4_STATE_XATTR)) { - error = xattr_check_inode(inode, header, is->s.end); - if (error) - return error; /* Find the named attribute. */ error = xattr_find_entry(inode, &is->s.here, is->s.end, i->name_index, i->name, 0); @@ -2757,10 +2737,6 @@ int ext4_expand_extra_isize_ea(struct inode *inode, int new_extra_isize, min_offs = end - base; total_ino = sizeof(struct ext4_xattr_ibody_header) + sizeof(u32); - error = xattr_check_inode(inode, header, end); - if (error) - goto cleanup; - ifree = ext4_xattr_free_space(base, &min_offs, base, &total_ino); if (ifree >= isize_diff) goto shift; diff --git a/fs/ext4/xattr.h b/fs/ext4/xattr.h index 9a596e19c2b1..cbf235422aec 100644 --- a/fs/ext4/xattr.h +++ b/fs/ext4/xattr.h @@ -210,6 +210,13 @@ extern int ext4_xattr_ibody_set(handle_t *handle, struct inode *inode, extern struct mb_cache *ext4_xattr_create_cache(void); extern void ext4_xattr_destroy_cache(struct mb_cache *); +extern int +__xattr_check_inode(struct inode *inode, struct ext4_xattr_ibody_header *header, + void *end, const char *function, unsigned int line); + +#define xattr_check_inode(inode, header, end) \ + __xattr_check_inode((inode), (header), (end), __func__, __LINE__) + #ifdef CONFIG_EXT4_FS_SECURITY extern int ext4_init_security(handle_t *handle, struct inode *inode, struct inode *dir, const struct qstr *qstr);