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| author | Zoran Markovic <zmarkovic@sierrawireless.com> | 2018-10-18 02:25:44 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-02-20 12:08:58 +0300 |
| commit | e51ff4fd1f0c0c6b91758eb8f01bfa9a610ccd7d (patch) | |
| tree | 528951f905f9f94f213fbed307512e29ff993c4a /firmware | |
| parent | 901adf68e568b464a7d4bb3c91a814c796efc58c (diff) | |
| download | linux-e51ff4fd1f0c0c6b91758eb8f01bfa9a610ccd7d.tar.xz | |
smack: fix access permissions for keyring
[ Upstream commit 5b841bfab695e3b8ae793172a9ff7990f99cc3e2 ]
Function smack_key_permission() only issues smack requests for the
following operations:
- KEY_NEED_READ (issues MAY_READ)
- KEY_NEED_WRITE (issues MAY_WRITE)
- KEY_NEED_LINK (issues MAY_WRITE)
- KEY_NEED_SETATTR (issues MAY_WRITE)
A blank smack request is issued in all other cases, resulting in
smack access being granted if there is any rule defined between
subject and object, or denied with -EACCES otherwise.
Request MAY_READ access for KEY_NEED_SEARCH and KEY_NEED_VIEW.
Fix the logic in the unlikely case when both MAY_READ and
MAY_WRITE are needed. Validate access permission field for valid
contents.
Signed-off-by: Zoran Markovic <zmarkovic@sierrawireless.com>
Signed-off-by: Casey Schaufler <casey@schaufler-ca.com>
Cc: Casey Schaufler <casey@schaufler-ca.com>
Cc: James Morris <jmorris@namei.org>
Cc: "Serge E. Hallyn" <serge@hallyn.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'firmware')
0 files changed, 0 insertions, 0 deletions