Patch "erofs: avoid duplicated permission check for "trusted." xattrs" has been added to the 5.9-stable tree

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This is a note to let you know that I've just added the patch titled

    erofs: avoid duplicated permission check for "trusted." xattrs

to the 5.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     erofs-avoid-duplicated-permission-check-for-trusted.-xattrs.patch
and it can be found in the queue-5.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.


>From d578b46db69d125a654f509bdc9091d84e924dc8 Mon Sep 17 00:00:00 2001
From: Gao Xiang <hsiangkao@xxxxxxxxxx>
Date: Tue, 11 Aug 2020 15:00:20 +0800
Subject: erofs: avoid duplicated permission check for "trusted." xattrs

From: Gao Xiang <hsiangkao@xxxxxxxxxx>

commit d578b46db69d125a654f509bdc9091d84e924dc8 upstream.

Don't recheck it since xattr_permission() already
checks CAP_SYS_ADMIN capability.

Just follow 5d3ce4f70172 ("f2fs: avoid duplicated permission check for "trusted." xattrs")

Reported-by: Hongyu Jin <hongyu.jin@xxxxxxxxxx>
[ Gao Xiang: since it could cause some complex Android overlay
  permission issue as well on android-5.4+, it'd be better to
  backport to 5.4+ rather than pure cleanup on mainline. ]
Cc: <stable@xxxxxxxxxxxxxxx> # 5.4+
Link: https://lore.kernel.org/r/20200811070020.6339-1-hsiangkao@xxxxxxxxxx
Reviewed-by: Chao Yu <yuchao0@xxxxxxxxxx>
Signed-off-by: Gao Xiang <hsiangkao@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 fs/erofs/xattr.c |    2 --
 1 file changed, 2 deletions(-)

--- a/fs/erofs/xattr.c
+++ b/fs/erofs/xattr.c
@@ -473,8 +473,6 @@ static int erofs_xattr_generic_get(const
 			return -EOPNOTSUPP;
 		break;
 	case EROFS_XATTR_INDEX_TRUSTED:
-		if (!capable(CAP_SYS_ADMIN))
-			return -EPERM;
 		break;
 	case EROFS_XATTR_INDEX_SECURITY:
 		break;


Patches currently in stable-queue which might be from hsiangkao@xxxxxxxxxx are

queue-5.9/erofs-avoid-duplicated-permission-check-for-trusted.-xattrs.patch



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