NULL Pointer Dereference Affecting kernel-syms-azure package, versions <6.4.0-150600.8.11.1
Threat Intelligence
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Start learning- Snyk IDSNYK-SLES156-KERNELSYMSAZURE-7929970
- published11 Sept 2024
- disclosed10 Sept 2024
Introduced: 10 Sep 2024
CVE-2024-42141 (opens in a new tab)How to fix?
Upgrade SLES:15.6 kernel-syms-azure to version 6.4.0-150600.8.11.1 or higher.
NVD Description
Note: Versions mentioned in the description apply only to the upstream kernel-syms-azure package and not the kernel-syms-azure package as distributed by SLES.
See How to fix? for SLES:15.6 relevant fixed versions and status.
In the Linux kernel, the following vulnerability has been resolved:
Bluetooth: ISO: Check socket flag instead of hcon
This fixes the following Smatch static checker warning:
net/bluetooth/iso.c:1364 iso_sock_recvmsg() error: we previously assumed 'pi->conn->hcon' could be null (line 1359)
net/bluetooth/iso.c 1347 static int iso_sock_recvmsg(struct socket *sock, struct msghdr *msg, 1348 size_t len, int flags) 1349 { 1350 struct sock *sk = sock->sk; 1351 struct iso_pinfo *pi = iso_pi(sk); 1352 1353 BT_DBG("sk %p", sk); 1354 1355 if (test_and_clear_bit(BT_SK_DEFER_SETUP, &bt_sk(sk)->flags)) { 1356 lock_sock(sk); 1357 switch (sk->sk_state) { 1358 case BT_CONNECT2: 1359 if (pi->conn->hcon && ^^^^^^^^^^^^^^ If ->hcon is NULL
1360 test_bit(HCI_CONN_PA_SYNC, &pi->conn->hcon->flags)) { 1361 iso_conn_big_sync(sk); 1362 sk->sk_state = BT_LISTEN; 1363 } else { --> 1364 iso_conn_defer_accept(pi->conn->hcon); ^^^^^^^^^^^^^^ then we're toast
1365 sk->sk_state = BT_CONFIG; 1366 } 1367 release_sock(sk); 1368 return 0; 1369 case BT_CONNECTED: 1370 if (test_bit(BT_SK_PA_SYNC,
References
- https://www.suse.com/security/cve/CVE-2024-42141.html
- https://bugzilla.suse.com/1228502
- https://git.kernel.org/stable/c/045669710464a21c67e690ef14698fd71857cb11
- https://git.kernel.org/stable/c/33fabef489169c6db87843ef23351ed0d5e51ad8
- https://git.kernel.org/stable/c/596b6f081336e77764ca35cfeab66d0fcdbe544e