linux-stable/fs/ksmbd
Thorsten Blum 26eb63f732 smb: server: Fix extension string in ksmbd_extract_shortname()
[ Upstream commit 8e7d178d06 ]

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: Sasha Levin <sashal@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2025-08-28 16:24:31 +02:00
..
mgmt
asn1.c
asn1.h
auth.c
auth.h
connection.c
connection.h
crypto_ctx.c
crypto_ctx.h
glob.h
Kconfig
ksmbd_netlink.h
ksmbd_spnego_negtokeninit.asn1
ksmbd_spnego_negtokentarg.asn1
ksmbd_work.c
ksmbd_work.h
Makefile
misc.c
misc.h
ndr.c
ndr.h
nterr.h
ntlmssp.h
oplock.c
oplock.h
server.c
server.h
smb2misc.c
smb2ops.c
smb2pdu.c
smb2pdu.h
smb_common.c
smb_common.h
smbacl.c
smbacl.h
smbfsctl.h
smbstatus.h
transport_ipc.c
transport_ipc.h
transport_rdma.c
transport_rdma.h
transport_tcp.c
transport_tcp.h
unicode.c
unicode.h
uniupr.h
vfs_cache.c
vfs_cache.h
vfs.c
vfs.h
xattr.h