| 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-2024-35850: Bluetooth: qca: fix NULL-deref on non-serdev setup |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| Bluetooth: qca: fix NULL-deref on non-serdev setup |
| |
| Qualcomm ROME controllers can be registered from the Bluetooth line |
| discipline and in this case the HCI UART serdev pointer is NULL. |
| |
| Add the missing sanity check to prevent a NULL-pointer dereference when |
| setup() is called for a non-serdev controller. |
| |
| The Linux kernel CVE team has assigned CVE-2024-35850 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.2 with commit e9b3e5b8c65733f626a7ee919c4bc895b51d7bb2 and fixed in 6.6.30 with commit 67459f1a707aae6d590454de07956c2752e21ea4 |
| Issue introduced in 6.2 with commit e9b3e5b8c65733f626a7ee919c4bc895b51d7bb2 and fixed in 6.8.9 with commit bec4d4c6fa5c6526409f582e4f31144e20c86c21 |
| Issue introduced in 6.2 with commit e9b3e5b8c65733f626a7ee919c4bc895b51d7bb2 and fixed in 6.9 with commit 7ddb9de6af0f1c71147785b12fd7c8ec3f06cc86 |
| |
| 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-2024-35850 |
| 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/hci_qca.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/67459f1a707aae6d590454de07956c2752e21ea4 |
| https://git.kernel.org/stable/c/bec4d4c6fa5c6526409f582e4f31144e20c86c21 |
| https://git.kernel.org/stable/c/7ddb9de6af0f1c71147785b12fd7c8ec3f06cc86 |
