+ mm-secretmem-fix-panic-when-growing-a-memfd_secret-v2.patch added to -mm tree

+ mm-secretmem-fix-panic-when-growing-a-memfd_secret-v2.patch added to -mm tree

[Andrew Morton]

The patch titled
     Subject: mm-secretmem-fix-panic-when-growing-a-memfd_secret-v2
has been added to the -mm tree.  Its filename is
     mm-secretmem-fix-panic-when-growing-a-memfd_secret-v2.patch

This patch should soon appear at
    https://ozlabs.org/~akpm/mmots/broken-out/mm-secretmem-fix-panic-when-growing-a-memfd_secret-v2.patch
and later at
    https://ozlabs.org/~akpm/mmotm/broken-out/mm-secretmem-fix-panic-when-growing-a-memfd_secret-v2.patch

Before you just go and hit "reply", please:
   a) Consider who else should be cc'ed
   b) Prefer to cc a suitable mailing list as well
   c) Ideally: find the original patch on the mailing list and do a
      reply-to-all to that, adding suitable additional cc's

*** Remember to use Documentation/process/submit-checklist.rst when testing your code ***

The -mm tree is included into linux-next and is updated
there every 3-4 working days

------------------------------------------------------
From: Axel Rasmussen <axelrasmussen@google.com>
Subject: 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>
---


--- a/mm/secretmem.c~mm-secretmem-fix-panic-when-growing-a-memfd_secret-v2
+++ a/mm/secretmem.c
@@ -165,7 +165,7 @@ static int secretmem_setattr(struct user
 	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);
 }
_

Patches currently in -mm which might be from axelrasmussen@google.com are

mm-secretmem-fix-panic-when-growing-a-memfd_secret.patch
mm-secretmem-fix-panic-when-growing-a-memfd_secret-v2.patch