6.6-stable review patch. If anyone has any objections, please let me know.
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From: Pali Rohár pali@kernel.org
[ Upstream commit f4ca4f5a36eac9b4da378a0f28cbbe38534a0901 ]
SMB1 NT_TRANSACT_IOCTL/FSCTL_GET_REPARSE_POINT even in non-UNICODE mode returns reparse buffer in UNICODE/UTF-16 format.
This is because FSCTL_GET_REPARSE_POINT is NT-based IOCTL which does not distinguish between 8-bit non-UNICODE and 16-bit UNICODE modes and its path buffers are always encoded in UTF-16.
This change fixes reading of native symlinks in SMB1 when UNICODE session is not active.
Fixes: ed3e0a149b58 ("smb: client: implement ->query_reparse_point() for SMB1") Signed-off-by: Pali Rohár pali@kernel.org Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Sasha Levin sashal@kernel.org --- fs/smb/client/smb1ops.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-)
diff --git a/fs/smb/client/smb1ops.c b/fs/smb/client/smb1ops.c index 5c8fb75b61457..b0c0572f9d1fb 100644 --- a/fs/smb/client/smb1ops.c +++ b/fs/smb/client/smb1ops.c @@ -1000,12 +1000,11 @@ static int cifs_parse_reparse_point(struct cifs_sb_info *cifs_sb, { struct reparse_data_buffer *buf; TRANSACT_IOCTL_RSP *io = rsp_iov->iov_base; - bool unicode = !!(io->hdr.Flags2 & SMBFLG2_UNICODE); u32 plen = le16_to_cpu(io->ByteCount);
buf = (struct reparse_data_buffer *)((__u8 *)&io->hdr.Protocol + le32_to_cpu(io->DataOffset)); - return parse_reparse_point(buf, plen, cifs_sb, full_path, unicode, data); + return parse_reparse_point(buf, plen, cifs_sb, full_path, true, data); }
static bool