| 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-2024-53064: idpf: fix idpf_vc_core_init error path |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| idpf: fix idpf_vc_core_init error path |
| |
| In an event where the platform running the device control plane |
| is rebooted, reset is detected on the driver. It releases |
| all the resources and waits for the reset to complete. Once the |
| reset is done, it tries to build the resources back. At this |
| time if the device control plane is not yet started, then |
| the driver timeouts on the virtchnl message and retries to |
| establish the mailbox again. |
| |
| In the retry flow, mailbox is deinitialized but the mailbox |
| workqueue is still alive and polling for the mailbox message. |
| This results in accessing the released control queue leading to |
| null-ptr-deref. Fix it by unrolling the work queue cancellation |
| and mailbox deinitialization in the reverse order which they got |
| initialized. |
| |
| The Linux kernel CVE team has assigned CVE-2024-53064 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.7 with commit 4930fbf419a72d7477426fd883bfc37e20a61a6e and fixed in 6.11.8 with commit 683fcd90ba22507ebeb1921a26dfe77efff8c266 |
| Issue introduced in 6.7 with commit 4930fbf419a72d7477426fd883bfc37e20a61a6e and fixed in 6.12 with commit 9b58031ff96b84a38d7b73b23c7ecfb2e0557f43 |
| |
| 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-2024-53064 |
| 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/net/ethernet/intel/idpf/idpf_lib.c |
| drivers/net/ethernet/intel/idpf/idpf_virtchnl.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/683fcd90ba22507ebeb1921a26dfe77efff8c266 |
| https://git.kernel.org/stable/c/9b58031ff96b84a38d7b73b23c7ecfb2e0557f43 |
