6.13-stable review patch. If anyone has any objections, please let me know.
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From: Paulo Alcantara pc@manguebit.com
commit 654292a0b264e9b8c51b98394146218a21612aa1 upstream.
When the user sets a file or directory as read-only (e.g. ~S_IWUGO), the client will set the ATTR_READONLY attribute by sending an SMB2_SET_INFO request to the server in cifs_setattr_{,nounix}(), but cifsInodeInfo::cifsAttrs will be left unchanged as the client will only update the new file attributes in the next call to {smb311_posix,cifs}_get_inode_info() with the new metadata filled in @data parameter.
Commit a18280e7fdea ("smb: cilent: set reparse mount points as automounts") mistakenly removed the @data NULL check when calling is_inode_cache_good(), which broke the above case as the new ATTR_READONLY attribute would end up not being updated on files with a read lease.
Fix this by updating the inode whenever we have cached metadata in @data parameter.
Reported-by: Horst Reiterer horst.reiterer@fabasoft.com Closes: https://lore.kernel.org/r/85a16504e09147a195ac0aac1c801280@fabasoft.com Fixes: a18280e7fdea ("smb: cilent: set reparse mount points as automounts") Cc: stable@vger.kernel.org Signed-off-by: Paulo Alcantara (Red Hat) pc@manguebit.com Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/smb/client/inode.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/fs/smb/client/inode.c +++ b/fs/smb/client/inode.c @@ -1403,7 +1403,7 @@ int cifs_get_inode_info(struct inode **i struct cifs_fattr fattr = {}; int rc;
- if (is_inode_cache_good(*inode)) { + if (!data && is_inode_cache_good(*inode)) { cifs_dbg(FYI, "No need to revalidate cached inode sizes\n"); return 0; } @@ -1502,7 +1502,7 @@ int smb311_posix_get_inode_info(struct i struct cifs_fattr fattr = {}; int rc;
- if (is_inode_cache_good(*inode)) { + if (!data && is_inode_cache_good(*inode)) { cifs_dbg(FYI, "No need to revalidate cached inode sizes\n"); return 0; }