diff options
| author | Paulo Alcantara <pc@manguebit.org> | 2025-09-07 21:24:06 -0300 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2025-09-09 18:39:58 -0500 |
| commit | c5ea3065586d790ea5193a679b85585173d59866 (patch) | |
| tree | 08cfd7803adf6d8f8346f05a5a67d98fdf428c8f /scripts/generate_rust_target.rs | |
| parent | 90f7c100d2dd99d5cd5be950d553edd2647e6cc8 (diff) | |
smb: client: fix data loss due to broken rename(2)
Rename of open files in SMB2+ has been broken for a very long time,
resulting in data loss as the CIFS client would fail the rename(2)
call with -ENOENT and then removing the target file.
Fix this by implementing ->rename_pending_delete() for SMB2+, which
will rename busy files to random filenames (e.g. silly rename) during
unlink(2) or rename(2), and then marking them to delete-on-close.
Besides, introduce a FIND_WR_NO_PENDING_DELETE flag to prevent open(2)
from reusing open handles that had been marked as delete pending.
Handle it in cifs_get_readable_path() as well.
Reported-by: Jean-Baptiste Denis <jbdenis@pasteur.fr>
Closes: https://marc.info/?i=16aeb380-30d4-4551-9134-4e7d1dc833c0@pasteur.fr
Reviewed-by: David Howells <dhowells@redhat.com>
Cc: stable@vger.kernel.org
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Cc: Frank Sorenson <sorenson@redhat.com>
Cc: Olga Kornievskaia <okorniev@redhat.com>
Cc: Benjamin Coddington <bcodding@redhat.com>
Cc: Scott Mayhew <smayhew@redhat.com>
Cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'scripts/generate_rust_target.rs')
0 files changed, 0 insertions, 0 deletions