diff options
| -rw-r--r-- | drivers/block/drbd/drbd_nl.c | 2 | ||||
| -rw-r--r-- | drivers/md/dm-log-userspace-transfer.c | 2 | ||||
| -rw-r--r-- | drivers/staging/pohmelfs/config.c | 2 | ||||
| -rw-r--r-- | drivers/video/uvesafb.c | 2 | ||||
| -rw-r--r-- | include/linux/netlink.h | 1 | ||||
| -rw-r--r-- | net/netlink/af_netlink.c | 6 | ||||
| -rw-r--r-- | security/commoncap.c | 3 |
7 files changed, 5 insertions, 13 deletions
diff --git a/drivers/block/drbd/drbd_nl.c b/drivers/block/drbd/drbd_nl.c index 8cbfaa6..fe81c85 100644 --- a/drivers/block/drbd/drbd_nl.c +++ b/drivers/block/drbd/drbd_nl.c @@ -2177,7 +2177,7 @@ static void drbd_connector_callback(struct cn_msg *req, struct netlink_skb_parms return; } - if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN)) { + if (!cap_raised(current_cap(), CAP_SYS_ADMIN)) { retcode = ERR_PERM; goto fail; } diff --git a/drivers/md/dm-log-userspace-transfer.c b/drivers/md/dm-log-userspace-transfer.c index 049eaf1..1f23e04 100644 --- a/drivers/md/dm-log-userspace-transfer.c +++ b/drivers/md/dm-log-userspace-transfer.c @@ -134,7 +134,7 @@ static void cn_ulog_callback(struct cn_msg *msg, struct netlink_skb_parms *nsp) { struct dm_ulog_request *tfr = (struct dm_ulog_request *)(msg + 1); - if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN)) + if (!cap_raised(current_cap(), CAP_SYS_ADMIN)) return; spin_lock(&receiving_list_lock); diff --git a/drivers/staging/pohmelfs/config.c b/drivers/staging/pohmelfs/config.c index 89279ba..39413b7 100644 --- a/drivers/staging/pohmelfs/config.c +++ b/drivers/staging/pohmelfs/config.c @@ -525,7 +525,7 @@ static void pohmelfs_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *n { int err; - if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN)) + if (!cap_raised(current_cap(), CAP_SYS_ADMIN)) return; switch (msg->flags) { diff --git a/drivers/video/uvesafb.c b/drivers/video/uvesafb.c index 52ec095..5180a21 100644 --- a/drivers/video/uvesafb.c +++ b/drivers/video/uvesafb.c @@ -73,7 +73,7 @@ static void uvesafb_cn_callback(struct cn_msg *msg, struct netlink_skb_parms *ns struct uvesafb_task *utask; struct uvesafb_ktask *task; - if (!cap_raised(nsp->eff_cap, CAP_SYS_ADMIN)) + if (!cap_raised(current_cap(), CAP_SYS_ADMIN)) return; if (msg->seq >= UVESAFB_TASKS_MAX) diff --git a/include/linux/netlink.h b/include/linux/netlink.h index 66823b8..4c4ac3f 100644 --- a/include/linux/netlink.h +++ b/include/linux/netlink.h @@ -160,7 +160,6 @@ struct netlink_skb_parms { struct ucred creds; /* Skb credentials */ __u32 pid; __u32 dst_group; - kernel_cap_t eff_cap; }; #define NETLINK_CB(skb) (*(struct netlink_skb_parms*)&((skb)->cb)) diff --git a/net/netlink/af_netlink.c b/net/netlink/af_netlink.c index 97ecd92..a808fb1 100644 --- a/net/netlink/af_netlink.c +++ b/net/netlink/af_netlink.c @@ -1364,12 +1364,6 @@ static int netlink_sendmsg(struct kiocb *kiocb, struct socket *sock, NETLINK_CB(skb).dst_group = dst_group; memcpy(NETLINK_CREDS(skb), &siocb->scm->creds, sizeof(struct ucred)); - /* What can I do? Netlink is asynchronous, so that - we will have to save current capabilities to - check them, when this message will be delivered - to corresponding kernel module. --ANK (980802) - */ - err = -EFAULT; if (memcpy_fromiovec(skb_put(skb, len), msg->msg_iov, len)) { kfree_skb(skb); diff --git a/security/commoncap.c b/security/commoncap.c index 64c2ed9..a83e607 100644 --- a/security/commoncap.c +++ b/security/commoncap.c @@ -52,13 +52,12 @@ static void warn_setuid_and_fcaps_mixed(const char *fname) int cap_netlink_send(struct sock *sk, struct sk_buff *skb) { - NETLINK_CB(skb).eff_cap = current_cap(); return 0; } int cap_netlink_recv(struct sk_buff *skb, int cap) { - if (!cap_raised(NETLINK_CB(skb).eff_cap, cap)) + if (!cap_raised(current_cap(), cap)) return -EPERM; return 0; } |