diff options
Diffstat (limited to 'queue-3.16/selinux-rate-limit-netlink-message-warnings-in-selinux_nlmsg_perm.patch')
| -rw-r--r-- | queue-3.16/selinux-rate-limit-netlink-message-warnings-in-selinux_nlmsg_perm.patch | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/queue-3.16/selinux-rate-limit-netlink-message-warnings-in-selinux_nlmsg_perm.patch b/queue-3.16/selinux-rate-limit-netlink-message-warnings-in-selinux_nlmsg_perm.patch new file mode 100644 index 00000000..84cc0ed5 --- /dev/null +++ b/queue-3.16/selinux-rate-limit-netlink-message-warnings-in-selinux_nlmsg_perm.patch @@ -0,0 +1,40 @@ +From: Vladis Dronov <vdronov@redhat.com> +Date: Thu, 24 Dec 2015 11:09:41 -0500 +Subject: selinux: rate-limit netlink message warnings in selinux_nlmsg_perm() + +commit 76319946f321e30872dd72af7de867cb26e7a373 upstream. + +Any process is able to send netlink messages with invalid types. +Make the warning rate-limited to prevent too much log spam. + +The warning is supposed to help to find misbehaving programs, so +print the triggering command name and pid. + +Reported-by: Florian Weimer <fweimer@redhat.com> +Signed-off-by: Vladis Dronov <vdronov@redhat.com> +[PM: subject line tweak to make checkpatch.pl happy] +Signed-off-by: Paul Moore <pmoore@redhat.com> +Signed-off-by: Ben Hutchings <ben@decadent.org.uk> +--- + security/selinux/hooks.c | 9 +++++---- + 1 file changed, 5 insertions(+), 4 deletions(-) + +--- a/security/selinux/hooks.c ++++ b/security/selinux/hooks.c +@@ -4683,11 +4683,12 @@ static int selinux_nlmsg_perm(struct soc + err = selinux_nlmsg_lookup(sksec->sclass, nlh->nlmsg_type, &perm); + if (err) { + if (err == -EINVAL) { +- printk(KERN_WARNING +- "SELinux: unrecognized netlink message:" +- " protocol=%hu nlmsg_type=%hu sclass=%s\n", ++ pr_warn_ratelimited("SELinux: unrecognized netlink" ++ " message: protocol=%hu nlmsg_type=%hu sclass=%s" ++ " pig=%d comm=%s\n", + sk->sk_protocol, nlh->nlmsg_type, +- secclass_map[sksec->sclass - 1].name); ++ secclass_map[sksec->sclass - 1].name, ++ task_pid_nr(current), current->comm); + if (!selinux_enforcing || security_get_allow_unknown()) + err = 0; + } |