linux

NeilBrown 814cfdb635 smb/server: avoid deadlock when linking with ReplaceIfExists [ Upstream commit `d5fc1400a3` ] If smb2_create_link() is called with ReplaceIfExists set and the name does exist then a deadlock will happen. ksmbd_vfs_kern_path_locked() will return with success and the parent directory will be locked. ksmbd_vfs_remove_file() will then remove the file. ksmbd_vfs_link() will then be called while the parent is still locked. It will try to lock the same parent and will deadlock. This patch moves the ksmbd_vfs_kern_path_unlock() call to before ksmbd_vfs_link() and then simplifies the code, removing the file_present flag variable. Signed-off-by: NeilBrown <neil@brown.name> Acked-by: Namjae Jeon <linkinjeon@kernel.org> Signed-off-by: Steve French <stfrench@microsoft.com> Signed-off-by: Sasha Levin <sashal@kernel.org>		History 2025-08-20 18:30:19 +02:00
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client	smb: client: don't wait for info->send_pending == 0 on error	2025-08-20 18:30:16 +02:00
common	smb: smbdirect: introduce smbdirect_socket_parameters	2025-07-06 11:01:42 +02:00
server	smb/server: avoid deadlock when linking with ReplaceIfExists	2025-08-20 18:30:19 +02:00
Kconfig	smb: move client and server files to common directory fs/smb	2023-05-24 16:29:21 -05:00
Makefile	smb: move client and server files to common directory fs/smb	2023-05-24 16:29:21 -05:00