The patch titled
Subject: nilfs2: fix incorrect masking of permission flags for symlinks
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
nilfs2-fix-incorrect-masking-of-permission-flags-for-symlinks.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/nilfs2-fix-incorrect-masking-of-permission-flags-for-symlinks.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
Subject: nilfs2: fix incorrect masking of permission flags for symlinks
Date: Thu, 23 Jun 2022 17:54:01 +0900
The permission flags of newly created symlinks are wrongly dropped on
nilfs2 with the current umask value even though symlinks should have 777
(rwxrwxrwx) permissions:
$ umask
0022
$ touch file && ln -s file symlink; ls -l file symlink
-rw-r--r--. 1 root root 0 Jun 23 16:29 file
lrwxr-xr-x. 1 root root 4 Jun 23 16:29 symlink -> file
This fixes the bug by inserting a missing check that excludes
symlinks.
Link: https://lkml.kernel.org/r/1655974441-5612-1-git-send-email-konishi.ryusuke@xxxxxxxxx
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
Reported-by: Tommy Pettersson <ptp@xxxxxxxxxxxxxx>
Reported-by: Ciprian Craciun <ciprian.craciun@xxxxxxxxx>
Tested-by: Ryusuke Konishi <konishi.ryusuke@xxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
fs/nilfs2/nilfs.h | 3 +++
1 file changed, 3 insertions(+)
--- a/fs/nilfs2/nilfs.h~nilfs2-fix-incorrect-masking-of-permission-flags-for-symlinks
+++ a/fs/nilfs2/nilfs.h
@@ -198,6 +198,9 @@ static inline int nilfs_acl_chmod(struct
static inline int nilfs_init_acl(struct inode *inode, struct inode *dir)
{
+ if (S_ISLNK(inode->i_mode))
+ return 0;
+
inode->i_mode &= ~current_umask();
return 0;
}
_
Patches currently in -mm which might be from konishi.ryusuke@xxxxxxxxx are
nilfs2-fix-incorrect-masking-of-permission-flags-for-symlinks.patch
