From 056525d566e4d6823de01e8f50dbd46c85076741 Mon Sep 17 00:00:00 2001
From: Axel Rasmussen <axelrasmussen@google.com>
Date: Wed, 13 Apr 2022 23:06:50 -0700
Subject: [PATCH] mm-secretmem-fix-panic-when-growing-a-memfd_secret-v2

return EINVAL

Link: https://lkml.kernel.org/r/20220412193023.279320-1-axelrasmussen@google.com
Signed-off-by: Axel Rasmussen <axelrasmussen@google.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Mike Rapoport <rppt@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---
 mm/secretmem.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/secretmem.c b/mm/secretmem.c
index ddf45c0435be..3b3cf2892b6a 100644
--- a/mm/secretmem.c
+++ b/mm/secretmem.c
@@ -165,7 +165,7 @@ static int secretmem_setattr(struct user_namespace *mnt_userns,
 	unsigned int ia_valid = iattr->ia_valid;
 
 	if ((ia_valid & ATTR_SIZE) && inode->i_size)
-		return -EOPNOTSUPP;
+		return -EINVAL;
 
 	return simple_setattr(mnt_userns, dentry, iattr);
 }
-- 
2.50.1