| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2023-53145: Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| Bluetooth: btsdio: fix use after free bug in btsdio_remove due to race condition |
| |
| In btsdio_probe, the data->work is bound with btsdio_work. It will be |
| started in btsdio_send_frame. |
| |
| If the btsdio_remove runs with a unfinished work, there may be a race |
| condition that hdev is freed but used in btsdio_work. Fix it by |
| canceling the work before do cleanup in btsdio_remove. |
| |
| The Linux kernel CVE team has assigned CVE-2023-53145 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.14.326 with commit 6c3653627397a0d6eab19b20a59423e118985a6b |
| Fixed in 4.19.295 with commit 3efcbf25e5ab4d4ad1b7e6ba0869ff85540e3f6e |
| Fixed in 5.4.257 with commit a6650d27ab2c12a8ee750f396edb5ac8b4558b2e |
| Fixed in 5.10.195 with commit 746b363bef41cc159c051c47f9e30800bc6b520d |
| Fixed in 5.15.131 with commit a5c2a467e9e789ae0891de55b766daac52e3b7b3 |
| Fixed in 6.1.52 with commit 179c65828593aff1f444e15debd40a477cb23cf4 |
| Fixed in 6.3 with commit 73f7b171b7c09139eb3c6a5677c200dc1be5f318 |
| |
| 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-2023-53145 |
| 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/btsdio.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/6c3653627397a0d6eab19b20a59423e118985a6b |
| https://git.kernel.org/stable/c/3efcbf25e5ab4d4ad1b7e6ba0869ff85540e3f6e |
| https://git.kernel.org/stable/c/a6650d27ab2c12a8ee750f396edb5ac8b4558b2e |
| https://git.kernel.org/stable/c/746b363bef41cc159c051c47f9e30800bc6b520d |
| https://git.kernel.org/stable/c/a5c2a467e9e789ae0891de55b766daac52e3b7b3 |
| https://git.kernel.org/stable/c/179c65828593aff1f444e15debd40a477cb23cf4 |
| https://git.kernel.org/stable/c/73f7b171b7c09139eb3c6a5677c200dc1be5f318 |
