[PATCH 1/2] audit: add filtering for io_uring records, addendum

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The commit ("audit: add filtering for io_uring records") added support for
filtering io_uring operations.

Add checks to the audit io_uring filtering code for directory and path watches,
and to keep the list counts consistent.

Signed-off-by: Richard Guy Briggs <rgb@xxxxxxxxxx>
---
 kernel/audit_tree.c  | 3 ++-
 kernel/audit_watch.c | 3 ++-
 kernel/auditfilter.c | 7 +++++--
 3 files changed, 9 insertions(+), 4 deletions(-)

diff --git a/kernel/audit_tree.c b/kernel/audit_tree.c
index 6c91902f4f45..2be285c2f069 100644
--- a/kernel/audit_tree.c
+++ b/kernel/audit_tree.c
@@ -727,7 +727,8 @@ int audit_make_tree(struct audit_krule *rule, char *pathname, u32 op)
 {
 
 	if (pathname[0] != '/' ||
-	    rule->listnr != AUDIT_FILTER_EXIT ||
+	    (rule->listnr != AUDIT_FILTER_EXIT &&
+	     rule->listnr != AUDIT_FILTER_URING_EXIT) ||
 	    op != Audit_equal ||
 	    rule->inode_f || rule->watch || rule->tree)
 		return -EINVAL;
diff --git a/kernel/audit_watch.c b/kernel/audit_watch.c
index 2acf7ca49154..698b62b4a2ec 100644
--- a/kernel/audit_watch.c
+++ b/kernel/audit_watch.c
@@ -183,7 +183,8 @@ int audit_to_watch(struct audit_krule *krule, char *path, int len, u32 op)
 		return -EOPNOTSUPP;
 
 	if (path[0] != '/' || path[len-1] == '/' ||
-	    krule->listnr != AUDIT_FILTER_EXIT ||
+	    (krule->listnr != AUDIT_FILTER_EXIT &&
+	     krule->listnr != AUDIT_FILTER_URING_EXIT) ||
 	    op != Audit_equal ||
 	    krule->inode_f || krule->watch || krule->tree)
 		return -EINVAL;
diff --git a/kernel/auditfilter.c b/kernel/auditfilter.c
index c21119c00504..bcdedfd1088c 100644
--- a/kernel/auditfilter.c
+++ b/kernel/auditfilter.c
@@ -153,7 +153,8 @@ char *audit_unpack_string(void **bufp, size_t *remain, size_t len)
 static inline int audit_to_inode(struct audit_krule *krule,
 				 struct audit_field *f)
 {
-	if (krule->listnr != AUDIT_FILTER_EXIT ||
+	if ((krule->listnr != AUDIT_FILTER_EXIT &&
+	     krule->listnr != AUDIT_FILTER_URING_EXIT) ||
 	    krule->inode_f || krule->watch || krule->tree ||
 	    (f->op != Audit_equal && f->op != Audit_not_equal))
 		return -EINVAL;
@@ -250,6 +251,7 @@ static inline struct audit_entry *audit_to_entry_common(struct audit_rule_data *
 		pr_err("AUDIT_FILTER_ENTRY is deprecated\n");
 		goto exit_err;
 	case AUDIT_FILTER_EXIT:
+	case AUDIT_FILTER_URING_EXIT:
 	case AUDIT_FILTER_TASK:
 #endif
 	case AUDIT_FILTER_USER:
@@ -982,7 +984,8 @@ static inline int audit_add_rule(struct audit_entry *entry)
 	}
 
 	entry->rule.prio = ~0ULL;
-	if (entry->rule.listnr == AUDIT_FILTER_EXIT) {
+	if (entry->rule.listnr == AUDIT_FILTER_EXIT ||
+	    entry->rule.listnr == AUDIT_FILTER_URING_EXIT) {
 		if (entry->rule.flags & AUDIT_FILTER_PREPEND)
 			entry->rule.prio = ++prio_high;
 		else
-- 
2.27.0




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