audit: session ID should not set arch quick field pointer

A bug was introduced in 8fae47705685fcaa75a1fe4c8c3e18300a702979
("audit: add support for session ID user filter")
See: https://github.com/linux-audit/audit-kernel/issues/4

When setting a session ID filter, the session ID filter field overwrote
the quick pointer reference to the arch field, potentially causing the
arch field to be misinterpreted.

Passes audit-testsuite.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
Signed-off-by: Paul Moore <paul@paul-moore.com>

diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index 4a1758a..739a6d2 100644 (file)
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -496,7 +496,6 @@ static struct audit_entry *audit_data_to_entry(struct audit_rule_data *data,
                        if (!gid_valid(f->gid))
                                goto exit_free;
                        break;
-               case AUDIT_SESSIONID:
                case AUDIT_ARCH:
                        entry->rule.arch_f = f;
                        break;