| 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-2024-56540: accel/ivpu: Prevent recovery invocation during probe and resume |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| accel/ivpu: Prevent recovery invocation during probe and resume |
| |
| Refactor IPC send and receive functions to allow correct |
| handling of operations that should not trigger a recovery process. |
| |
| Expose ivpu_send_receive_internal(), which is now utilized by the D0i3 |
| entry, DCT initialization, and HWS initialization functions. |
| These functions have been modified to return error codes gracefully, |
| rather than initiating recovery. |
| |
| The updated functions are invoked within ivpu_probe() and ivpu_resume(), |
| ensuring that any errors encountered during these stages result in a proper |
| teardown or shutdown sequence. The previous approach of triggering recovery |
| within these functions could lead to a race condition, potentially causing |
| undefined behavior and kernel crashes due to null pointer dereferences. |
| |
| The Linux kernel CVE team has assigned CVE-2024-56540 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.8 with commit 45e45362e0955fc3b0b622e8a0d788097f3de902 and fixed in 6.11.11 with commit cac822772c4dc27a285f09caf30072ab76d2bf38 |
| Issue introduced in 6.8 with commit 45e45362e0955fc3b0b622e8a0d788097f3de902 and fixed in 6.12.2 with commit 362ef76020ea6219a4df4ac5b738672b59527239 |
| Issue introduced in 6.8 with commit 45e45362e0955fc3b0b622e8a0d788097f3de902 and fixed in 6.13 with commit 5eaa497411197c41b0813d61ba3fbd6267049082 |
| |
| 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-2024-56540 |
| 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/accel/ivpu/ivpu_ipc.c |
| drivers/accel/ivpu/ivpu_ipc.h |
| drivers/accel/ivpu/ivpu_jsm_msg.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/cac822772c4dc27a285f09caf30072ab76d2bf38 |
| https://git.kernel.org/stable/c/362ef76020ea6219a4df4ac5b738672b59527239 |
| https://git.kernel.org/stable/c/5eaa497411197c41b0813d61ba3fbd6267049082 |
