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linux/fs/smb
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Thorsten Blum f54eef9be3 smb: server: Fix extension string in ksmbd_extract_shortname() 
commit 8e7d178d06 upstream.

In ksmbd_extract_shortname(), strscpy() is incorrectly called with the
length of the source string (excluding the NUL terminator) rather than
the size of the destination buffer. This results in "__" being copied
to 'extension' rather than "___" (two underscores instead of three).

Use the destination buffer size instead to ensure that the string "___"
(three underscores) is copied correctly.

Cc: stable@vger.kernel.org
Fixes: e2f34481b2 ("cifsd: add server-side procedures for SMB3")
Signed-off-by: Thorsten Blum <thorsten.blum@linux.dev>
Acked-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
History 2025-08-15 12:14:11 +02:00
..
client smb: client: return an error if rdma_connect does not return within 5 seconds 2025-08-15 12:14:09 +02:00
common smb: smbdirect: introduce smbdirect_socket_parameters 2025-07-06 11:01:42 +02:00
server smb: server: Fix extension string in ksmbd_extract_shortname() 2025-08-15 12:14:11 +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