hollalinux
/
linux-sg2042
mirror of https://github.com/sophgo/linux-riscv.git
1
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity

nilfs2: fix incorrect masking of permission flags for symlinks 

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>
This commit is contained in:
Ryusuke Konishi 2022-06-23 17:54:01 +09:00 committed by akpm
parent 1118234e4b
commit 5924e6ec15
1 changed files with 3 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
fs/nilfs2/nilfs.h
View File

@ -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) 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(); inode->i_mode &= ~current_umask();
return 0; return 0;
} }