proc connector: reject unprivileged listener bumps

While PROC_CN_MCAST_LISTEN/IGNORE is entirely advisory, it was possible
for an unprivileged user to turn off notifications for all listeners by
sending PROC_CN_MCAST_IGNORE. Instead, require the same privileges as
required for a multicast bind.

Signed-off-by: Kees Cook <[email protected]>
Cc: Evgeniy Polyakov <[email protected]>
Cc: Matt Helsley <[email protected]>
Cc: [email protected]
Acked-by: Evgeniy Polyakov <[email protected]>
Acked-by: Matt Helsley <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

0 files changed, 0 insertions, 0 deletions