| 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-2023-52763: i3c: master: mipi-i3c-hci: Fix a kernel panic for accessing DAT_data. |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| i3c: master: mipi-i3c-hci: Fix a kernel panic for accessing DAT_data. |
| |
| The `i3c_master_bus_init` function may attach the I2C devices before the |
| I3C bus initialization. In this flow, the DAT `alloc_entry`` will be used |
| before the DAT `init`. Additionally, if the `i3c_master_bus_init` fails, |
| the DAT `cleanup` will execute before the device is detached, which will |
| execue DAT `free_entry` function. The above scenario can cause the driver |
| to use DAT_data when it is NULL. |
| |
| The Linux kernel CVE team has assigned CVE-2023-52763 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.0 with commit 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 and fixed in 5.15.140 with commit 39c71357e68e2f03766f9321b9f4882e49ff1442 |
| Issue introduced in 5.0 with commit 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 and fixed in 6.1.64 with commit e64d23dc65810be4e3395d72df0c398f60c991f9 |
| Issue introduced in 5.0 with commit 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 and fixed in 6.5.13 with commit 3cb79a365e7cce8f121bba91312e2ddd206b9781 |
| Issue introduced in 5.0 with commit 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 and fixed in 6.6.3 with commit eed74230435c61eeb58abaa275b1820e6a4b7f02 |
| Issue introduced in 5.0 with commit 3a379bbcea0af6280e1ca0d1edfcf4e68cde6ee0 and fixed in 6.7 with commit b53e9758a31c683fc8615df930262192ed5f034b |
| |
| 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-2023-52763 |
| 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/i3c/master/mipi-i3c-hci/dat_v1.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/39c71357e68e2f03766f9321b9f4882e49ff1442 |
| https://git.kernel.org/stable/c/e64d23dc65810be4e3395d72df0c398f60c991f9 |
| https://git.kernel.org/stable/c/3cb79a365e7cce8f121bba91312e2ddd206b9781 |
| https://git.kernel.org/stable/c/eed74230435c61eeb58abaa275b1820e6a4b7f02 |
| https://git.kernel.org/stable/c/b53e9758a31c683fc8615df930262192ed5f034b |
