Messages in this thread Patch in this message | | | From | Sasha Levin <> | Subject | [PATCH AUTOSEL 5.10 14/25] nilfs2: fix incorrect masking of permission flags for symlinks | Date | Tue, 19 Jul 2022 21:16:05 -0400 |
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From: Ryusuke Konishi <konishi.ryusuke@gmail.com>
[ Upstream commit 5924e6ec1585445f251ea92713eb15beb732622a ]
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@gmail.com Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> Reported-by: Tommy Pettersson <ptp@lysator.liu.se> Reported-by: Ciprian Craciun <ciprian.craciun@gmail.com> Tested-by: Ryusuke Konishi <konishi.ryusuke@gmail.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org> --- fs/nilfs2/nilfs.h | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/fs/nilfs2/nilfs.h b/fs/nilfs2/nilfs.h index 9ca165bc97d2..ace27a89fbb0 100644 --- a/fs/nilfs2/nilfs.h +++ b/fs/nilfs2/nilfs.h @@ -198,6 +198,9 @@ static inline int nilfs_acl_chmod(struct inode *inode) 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; } -- 2.35.1
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