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Diffstat (limited to 'fs/cifs/fs_context.c')
-rw-r--r--fs/cifs/fs_context.c24
1 files changed, 19 insertions, 5 deletions
diff --git a/fs/cifs/fs_context.c b/fs/cifs/fs_context.c
index 92d4ab029c91..553adfbcc22a 100644
--- a/fs/cifs/fs_context.c
+++ b/fs/cifs/fs_context.c
@@ -322,7 +322,6 @@ smb3_fs_context_dup(struct smb3_fs_context *new_ctx, struct smb3_fs_context *ctx
new_ctx->UNC = NULL;
new_ctx->source = NULL;
new_ctx->iocharset = NULL;
-
/*
* Make sure to stay in sync with smb3_cleanup_fs_context_contents()
*/
@@ -792,6 +791,8 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
int i, opt;
bool is_smb3 = !strcmp(fc->fs_type->name, "smb3");
bool skip_parsing = false;
+ kuid_t uid;
+ kgid_t gid;
cifs_dbg(FYI, "CIFS: parsing cifs mount option '%s'\n", param->key);
@@ -904,18 +905,31 @@ static int smb3_fs_context_parse_param(struct fs_context *fc,
}
break;
case Opt_uid:
- ctx->linux_uid.val = result.uint_32;
+ uid = make_kuid(current_user_ns(), result.uint_32);
+ if (!uid_valid(uid))
+ goto cifs_parse_mount_err;
+ ctx->linux_uid = uid;
ctx->uid_specified = true;
break;
case Opt_cruid:
- ctx->cred_uid.val = result.uint_32;
+ uid = make_kuid(current_user_ns(), result.uint_32);
+ if (!uid_valid(uid))
+ goto cifs_parse_mount_err;
+ ctx->cred_uid = uid;
+ ctx->cruid_specified = true;
break;
case Opt_backupgid:
- ctx->backupgid.val = result.uint_32;
+ gid = make_kgid(current_user_ns(), result.uint_32);
+ if (!gid_valid(gid))
+ goto cifs_parse_mount_err;
+ ctx->backupgid = gid;
ctx->backupgid_specified = true;
break;
case Opt_gid:
- ctx->linux_gid.val = result.uint_32;
+ gid = make_kgid(current_user_ns(), result.uint_32);
+ if (!gid_valid(gid))
+ goto cifs_parse_mount_err;
+ ctx->linux_gid = gid;
ctx->gid_specified = true;
break;
case Opt_port: