6.5-stable review patch. If anyone has any objections, please let me know.
------------------
From: Jaegeuk Kim jaegeuk@kernel.org
commit 50a472bbc79ff9d5a88be8019a60e936cadf9f13 upstream.
If we return the error, there's no way to recover the status as of now, since fsck does not fix the xattr boundary issue.
Cc: stable@vger.kernel.org Signed-off-by: Jaegeuk Kim jaegeuk@kernel.org Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/f2fs/node.c | 4 +++- fs/f2fs/xattr.c | 20 +++++++++++++------- 2 files changed, 16 insertions(+), 8 deletions(-)
--- a/fs/f2fs/node.c +++ b/fs/f2fs/node.c @@ -2751,7 +2751,9 @@ recover_xnid: f2fs_update_inode_page(inode);
/* 3: update and set xattr node page dirty */ - memcpy(F2FS_NODE(xpage), F2FS_NODE(page), VALID_XATTR_BLOCK_SIZE); + if (page) + memcpy(F2FS_NODE(xpage), F2FS_NODE(page), + VALID_XATTR_BLOCK_SIZE);
set_page_dirty(xpage); f2fs_put_page(xpage, 1); --- a/fs/f2fs/xattr.c +++ b/fs/f2fs/xattr.c @@ -364,10 +364,10 @@ static int lookup_all_xattrs(struct inod
*xe = __find_xattr(cur_addr, last_txattr_addr, NULL, index, len, name); if (!*xe) { - f2fs_err(F2FS_I_SB(inode), "inode (%lu) has corrupted xattr", + f2fs_err(F2FS_I_SB(inode), "lookup inode (%lu) has corrupted xattr", inode->i_ino); set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK); - err = -EFSCORRUPTED; + err = -ENODATA; f2fs_handle_error(F2FS_I_SB(inode), ERROR_CORRUPTED_XATTR); goto out; @@ -584,13 +584,12 @@ ssize_t f2fs_listxattr(struct dentry *de
if ((void *)(entry) + sizeof(__u32) > last_base_addr || (void *)XATTR_NEXT_ENTRY(entry) > last_base_addr) { - f2fs_err(F2FS_I_SB(inode), "inode (%lu) has corrupted xattr", + f2fs_err(F2FS_I_SB(inode), "list inode (%lu) has corrupted xattr", inode->i_ino); set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK); - error = -EFSCORRUPTED; f2fs_handle_error(F2FS_I_SB(inode), ERROR_CORRUPTED_XATTR); - goto cleanup; + break; }
if (!prefix) @@ -650,7 +649,7 @@ static int __f2fs_setxattr(struct inode
if (size > MAX_VALUE_LEN(inode)) return -E2BIG; - +retry: error = read_all_xattrs(inode, ipage, &base_addr); if (error) return error; @@ -660,7 +659,14 @@ static int __f2fs_setxattr(struct inode /* find entry with wanted name. */ here = __find_xattr(base_addr, last_base_addr, NULL, index, len, name); if (!here) { - f2fs_err(F2FS_I_SB(inode), "inode (%lu) has corrupted xattr", + if (!F2FS_I(inode)->i_xattr_nid) { + f2fs_notice(F2FS_I_SB(inode), + "recover xattr in inode (%lu)", inode->i_ino); + f2fs_recover_xattr_data(inode, NULL); + kfree(base_addr); + goto retry; + } + f2fs_err(F2FS_I_SB(inode), "set inode (%lu) has corrupted xattr", inode->i_ino); set_sbi_flag(F2FS_I_SB(inode), SBI_NEED_FSCK); error = -EFSCORRUPTED;