CVE-2024-42141

CVE Details

Release Date:

2024-07-30

Description

In the Linux kernel, the following vulnerability has been resolved:\nBluetooth: ISO: Check socket flag instead of hcon\nThis fixes the following Smatch static checker warning:\nnet/bluetooth/iso.c:1364 iso_sock_recvmsg()\nerror: we previously assumed 'pi->conn->hcon' could be null (line 1359)\nnet/bluetooth/iso.c\n1347 static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg,\n1348 size_t len, int flags)\n1349 {\n1350 struct sock *sk = sock->sk;\n1351 struct iso_pinfo *pi = iso_pi(sk);\n1352\n1353 BT_DBG('sk %p', sk);\n1354\n1355 if (test_and_clear_bit(BT_SK_DEFER_SETUP,\n&bt_sk(sk)->flags)) {\n1356 lock_sock(sk);\n1357 switch (sk->sk_state) {\n1358 case BT_CONNECT2:\n1359 if (pi->conn->hcon &&\n^^^^^^^^^^^^^^ If ->hcon is NULL\n1360 test_bit(HCI_CONN_PA_SYNC,\n&pi->conn->hcon->flags)) {\n1361 iso_conn_big_sync(sk);\n1362 sk->sk_state = BT_LISTEN;\n1363 } else {\n--> 1364 iso_conn_defer_accept(pi->conn->hcon);\n^^^^^^^^^^^^^^\nthen we're toast\n1365 sk->sk_state = BT_CONFIG;\n1366 }\n1367 release_sock(sk);\n1368 return 0;\n1369 case BT_CONNECTED:\n1370 if (test_bit(BT_SK_PA_SYNC,

See more information about CVE-2024-42141 from MITRE CVE dictionary and NIST NVD

CVSS Scoring

NOTE: The following CVSS v3.1 metrics and score provided are preliminary and subject to review.

Base Score:	5.5	CVSS Vector:	CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Attack Vector:	Local network	Attack Complexity:	Low
Privileges Required:	Low	User Interaction:	None
Scope:	Unchanged	Confidentiality Impact:	None
Integrity Impact:	None	Availability Impact:	High

Errata information

Platform	Errata	Release Date
Oracle Linux version 9 (kernel)	ELSA-2024-9315	2024-11-14