cbcvebase.
CVE-2024-42141
published 2024-07-30

CVE-2024-42141: In the Linux kernel, the following vulnerability has been resolved: Bluetooth: ISO: Check socket flag instead of hcon This fixes the following Smatch static…

PriorityP418medium5.5CVSS 3.1
AVLACLPRLUINSUCNINAH
EPSS
0.22%
13.2th percentile
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,

Affected

14 ranges
VendorProductVersion rangeFixed in
debianlinux< linux 6.9.9-1 (forky)linux 6.9.9-1 (forky)
linuxlinux
linuxlinux
linuxlinux>= 6.5.12 < 6.66.6
linuxlinux>= fbdc4bc47268953c80853489f696e02d61f9a2c6 < 045669710464a21c67e690ef14698fd71857cb11045669710464a21c67e690ef14698fd71857cb11
linuxlinux>= fbdc4bc47268953c80853489f696e02d61f9a2c6 < 33fabef489169c6db87843ef23351ed0d5e51ad833fabef489169c6db87843ef23351ed0d5e51ad8
linuxlinux>= fbdc4bc47268953c80853489f696e02d61f9a2c6 < 596b6f081336e77764ca35cfeab66d0fcdbe544e596b6f081336e77764ca35cfeab66d0fcdbe544e
linuxlinux_kernel
linuxlinux_kernel>= 0 < 6.9.9-16.9.9-1
linuxlinux_kernel>= 0 < 6.9.9-16.9.9-1
linuxlinux_kernel>= 0 < 6.8.0-48.486.8.0-48.48
linuxlinux_kernel>= 6.5.12 < 6.66.6
linuxlinux_kernel>= 6.6 < 6.6.396.6.39
linuxlinux_kernel>= 6.7 < 6.9.96.9.9

CVSS provenance

nvdv3.15.5MEDIUMCVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
osv5.5MEDIUM
vendor_debian5.5LOW
vendor_redhat5.5MEDIUM
vendor_ubuntu5.5MEDIUM
Stop checking back — get the weekly exploitation signal.

Every Monday: what got weaponized or added to CISA KEV in the last seven days — each CVE cross-linked to its PoC, Nuclei template, and detection rule. Free, one email a week, unsubscribe in one click.