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audit: ignore terminating NUL in AUDIT_USER_TTY messages
[firefly-linux-kernel-4.4.55.git]
/
kernel
/
audit.c
diff --git
a/kernel/audit.c
b/kernel/audit.c
index fa3805516dffd546b4d0ebe95f1e44d6c3c1e7b7..5560390cb0f5eec2d630144f8b4419974795c297 100644
(file)
--- a/
kernel/audit.c
+++ b/
kernel/audit.c
@@
-766,6
+766,9
@@
static int audit_receive_msg(struct sk_buff *skb, struct nlmsghdr *nlh)
audit_log_format(ab, " msg=");
size = nlmsg_len(nlh);
+ if (size > 0 &&
+ ((unsigned char *)data)[size - 1] == '\0')
+ size--;
audit_log_n_untrustedstring(ab, data, size);
}
audit_set_pid(ab, pid);