diff options
| author | Jan Kara <jack@suse.cz> | 2015-05-21 16:05:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2015-07-10 10:37:59 -0700 |
| commit | fb074edaffd8ef1e4532b4a4557b3ebeb9596184 (patch) | |
| tree | d115171da1d693a8979b1e293620b1ad2dd1f09e /fs/dcache.c | |
| parent | 18358e27d477847f49a509ed50f4b70bab8e8f8b (diff) | |
fs: Fix S_NOSEC handling
commit 2426f3910069ed47c0cc58559a6d088af7920201 upstream.
file_remove_suid() could mistakenly set S_NOSEC inode bit when root was
modifying the file. As a result following writes to the file by ordinary
user would avoid clearing suid or sgid bits.
Fix the bug by checking actual mode bits before setting S_NOSEC.
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'fs/dcache.c')
0 files changed, 0 insertions, 0 deletions