linux-kernel - Re: [syzbot] [arm-msm?] [net?] memory leak in radix_tree

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Date:   Sat, 09 Dec 2023 21:14:30 -0800
From:   syzbot <syzbot+006987d1be3586e13555@...kaller.appspotmail.com>
To:     linux-kernel@...r.kernel.org
Subject: Re: [syzbot] [arm-msm?] [net?] memory leak in radix_tree_insert

For archival purposes, forwarding an incoming command email to
linux-kernel@...r.kernel.org.

***

Subject: [arm-msm?] [net?] memory leak in radix_tree_insert
Author: eadavis@...com

please test memory leak in radix_tree_insert

#syz test https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 33cc938e65a9

diff --git a/net/qrtr/af_qrtr.c b/net/qrtr/af_qrtr.c
index 41ece61eb57a..3615a9f35bbb 100644
--- a/net/qrtr/af_qrtr.c
+++ b/net/qrtr/af_qrtr.c
@@ -267,6 +267,9 @@ static int qrtr_tx_wait(struct qrtr_node *node, int dest_node, int dest_port,
 	/* Never set confirm_rx on non-data packets */
 	if (type != QRTR_TYPE_DATA)
 		return 0;
+	printk("dn: %d, dp: %d, %s\n", dest_node, dest_port, type, __func__);
+	if (dest_node < 0)
+		return -EINVAL;
 
 	mutex_lock(&node->qrtr_tx_lock);
 	flow = radix_tree_lookup(&node->qrtr_tx_flow, key);