| From bippy-5f407fcff5a0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@linuxfoundation.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2024-38620: Bluetooth: HCI: Remove HCI_AMP support |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| Bluetooth: HCI: Remove HCI_AMP support |
| |
| Since BT_HS has been remove HCI_AMP controllers no longer has any use so |
| remove it along with the capability of creating AMP controllers. |
| |
| Since we no longer need to differentiate between AMP and Primary |
| controllers, as only HCI_PRIMARY is left, this also remove |
| hdev->dev_type altogether. |
| |
| The Linux kernel CVE team has assigned CVE-2024-38620 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.3 with commit 244bc377591c3882f454882357bc730c90cbedb5 and fixed in 6.6.33 with commit 5af2e235b0d5b797e9531a00c50058319130e156 |
| Issue introduced in 4.3 with commit 244bc377591c3882f454882357bc730c90cbedb5 and fixed in 6.8.12 with commit d3c7b012d912b31ad23b9349c0e499d6dddd48ec |
| Issue introduced in 4.3 with commit 244bc377591c3882f454882357bc730c90cbedb5 and fixed in 6.9.3 with commit af1d425b6dc67cd67809f835dd7afb6be4d43e03 |
| Issue introduced in 4.3 with commit 244bc377591c3882f454882357bc730c90cbedb5 and fixed in 6.10 with commit 84a4bb6548a29326564f0e659fb8064503ecc1c7 |
| |
| Please see https://www.kernel.org for a full list of currently supported |
| kernel versions by the kernel community. |
| |
| Unaffected versions might change over time as fixes are backported to |
| older supported kernel versions. The official CVE entry at |
| https://cve.org/CVERecord/?id=CVE-2024-38620 |
| will be updated if fixes are backported, please check that for the most |
| up to date information about this issue. |
| |
| |
| Affected files |
| ============== |
| |
| The file(s) affected by this issue are: |
| drivers/bluetooth/btmrvl_main.c |
| drivers/bluetooth/btrsi.c |
| drivers/bluetooth/btsdio.c |
| drivers/bluetooth/btusb.c |
| drivers/bluetooth/hci_bcm4377.c |
| drivers/bluetooth/hci_ldisc.c |
| drivers/bluetooth/hci_serdev.c |
| drivers/bluetooth/hci_uart.h |
| drivers/bluetooth/hci_vhci.c |
| drivers/bluetooth/virtio_bt.c |
| include/net/bluetooth/hci.h |
| include/net/bluetooth/hci_core.h |
| include/uapi/linux/virtio_bt.h |
| net/bluetooth/hci_conn.c |
| net/bluetooth/hci_core.c |
| net/bluetooth/hci_event.c |
| net/bluetooth/hci_sock.c |
| net/bluetooth/hci_sync.c |
| net/bluetooth/l2cap_core.c |
| net/bluetooth/mgmt.c |
| |
| |
| Mitigation |
| ========== |
| |
| The Linux kernel CVE team recommends that you update to the latest |
| stable kernel version for this, and many other bugfixes. Individual |
| changes are never tested alone, but rather are part of a larger kernel |
| release. Cherry-picking individual commits is not recommended or |
| supported by the Linux kernel community at all. If however, updating to |
| the latest release is impossible, the individual changes to resolve this |
| issue can be found at these commits: |
| https://git.kernel.org/stable/c/5af2e235b0d5b797e9531a00c50058319130e156 |
| https://git.kernel.org/stable/c/d3c7b012d912b31ad23b9349c0e499d6dddd48ec |
| https://git.kernel.org/stable/c/af1d425b6dc67cd67809f835dd7afb6be4d43e03 |
| https://git.kernel.org/stable/c/84a4bb6548a29326564f0e659fb8064503ecc1c7 |
