From: Steve French stfrench@microsoft.com
commit 7321be2663da5922343cc121f1ff04924cee2e76 upstream.
We were incorrectly initializing the posix extensions in the conversion to the new mount API.
CC: stable@vger.kernel.org # 5.11+ Reported-by: Christian Brauner christian.brauner@ubuntu.com Acked-by: Christian Brauner christian.brauner@ubuntu.com Suggested-by: Namjae Jeon namjae.jeon@samsung.com Signed-off-by: Steve French stfrench@microsoft.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- fs/cifs/fs_context.c | 11 +++++++++-- 1 file changed, 9 insertions(+), 2 deletions(-)
--- a/fs/cifs/fs_context.c +++ b/fs/cifs/fs_context.c @@ -1259,10 +1259,17 @@ static int smb3_fs_context_parse_param(s ctx->posix_paths = 1; break; case Opt_unix: - if (result.negated) + if (result.negated) { + if (ctx->linux_ext == 1) + pr_warn_once("conflicting posix mount options specified\n"); ctx->linux_ext = 0; - else ctx->no_linux_ext = 1; + } else { + if (ctx->no_linux_ext == 1) + pr_warn_once("conflicting posix mount options specified\n"); + ctx->linux_ext = 1; + ctx->no_linux_ext = 0; + } break; case Opt_nocase: ctx->nocase = 1;