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| author | Jan Kara | 2015-05-21 16:05:52 +0200 |
|---|---|---|
| committer | Al Viro | 2015-06-24 00:01:08 +0200 |
| commit | 2426f3910069ed47c0cc58559a6d088af7920201 (patch) | |
| tree | 88c802202a7ae166f8da96ce3bcf43970eb314cd /mm/filemap.c | |
| parent | fs/posix_acl.c: make posix_acl_create() safer and cleaner (diff) | |
| download | kernel-qcow2-linux-2426f3910069ed47c0cc58559a6d088af7920201.tar.gz kernel-qcow2-linux-2426f3910069ed47c0cc58559a6d088af7920201.tar.xz kernel-qcow2-linux-2426f3910069ed47c0cc58559a6d088af7920201.zip | |
fs: Fix S_NOSEC handling
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.
CC: stable@vger.kernel.org
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Diffstat (limited to 'mm/filemap.c')
0 files changed, 0 insertions, 0 deletions