| 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-2024-57998: OPP: add index check to assert to avoid buffer overflow in _read_freq() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| OPP: add index check to assert to avoid buffer overflow in _read_freq() |
| |
| Pass the freq index to the assert function to make sure |
| we do not read a freq out of the opp->rates[] table when called |
| from the indexed variants: |
| dev_pm_opp_find_freq_exact_indexed() or |
| dev_pm_opp_find_freq_ceil/floor_indexed(). |
| |
| Add a secondary parameter to the assert function, unused |
| for assert_single_clk() then add assert_clk_index() which |
| will check for the clock index when called from the _indexed() |
| find functions. |
| |
| The Linux kernel CVE team has assigned CVE-2024-57998 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.6 with commit 142e17c1c2b48e3fb4f024e62ab6dee18f268694 and fixed in 6.6.76 with commit eb6ffa0192ba83ece1a318b956265519c5c7dcec |
| Issue introduced in 6.6 with commit 142e17c1c2b48e3fb4f024e62ab6dee18f268694 and fixed in 6.12.13 with commit 7d68c20638e50d5eb4576492a7958328ae445248 |
| Issue introduced in 6.6 with commit 142e17c1c2b48e3fb4f024e62ab6dee18f268694 and fixed in 6.13.2 with commit da2a6acc73933b7812c94794726e438cde39e037 |
| Issue introduced in 6.6 with commit 142e17c1c2b48e3fb4f024e62ab6dee18f268694 and fixed in 6.14 with commit d659bc68ed489022ea33342cfbda2911a81e7a0d |
| |
| 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-2024-57998 |
| 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/opp/core.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/774dd6f0f0a61c9c3848e025d7d9eeed1a7ca4cd |
| https://git.kernel.org/stable/c/eb6ffa0192ba83ece1a318b956265519c5c7dcec |
| https://git.kernel.org/stable/c/7d68c20638e50d5eb4576492a7958328ae445248 |
| https://git.kernel.org/stable/c/da2a6acc73933b7812c94794726e438cde39e037 |
| https://git.kernel.org/stable/c/d659bc68ed489022ea33342cfbda2911a81e7a0d |
