[PATCH 2/2] audit: block PERM fields being used with io_uring filtering

Richard Guy Briggs
2021-05-31T13:49:14Z

The commit ("audit: add filtering for io_uring records") added support for
filtering io_uring operations. The PERM field is invalid for io_uring
filtering, so block it.

Signed-off-by: Richard Guy Briggs <rgb@redhat.com>
---
kernel/auditfilter.c | 4 ++++
1 file changed, 4 insertions(+)

diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index bcdedfd1088c..d75acb014ccd 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -336,6 +336,10 @@ static int audit_field_valid(struct audit_entry *entry, struct audit_field *f)
if (entry->rule.listnr != AUDIT_FILTER_FS)
return -EINVAL;
break;
+ case AUDIT_PERM:
+ if (entry->rule.listnr == AUDIT_FILTER_URING_EXIT)
+ return -EINVAL;
+ break;
}

switch (entry->rule.listnr) {
--
2.27.0