| 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-2023-52453: hisi_acc_vfio_pci: Update migration data pointer correctly on saving/resume |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| hisi_acc_vfio_pci: Update migration data pointer correctly on saving/resume |
| |
| When the optional PRE_COPY support was added to speed up the device |
| compatibility check, it failed to update the saving/resuming data |
| pointers based on the fd offset. This results in migration data |
| corruption and when the device gets started on the destination the |
| following error is reported in some cases, |
| |
| [ 478.907684] arm-smmu-v3 arm-smmu-v3.2.auto: event 0x10 received: |
| [ 478.913691] arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000310200000010 |
| [ 478.919603] arm-smmu-v3 arm-smmu-v3.2.auto: 0x000002088000007f |
| [ 478.925515] arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000000000000000 |
| [ 478.931425] arm-smmu-v3 arm-smmu-v3.2.auto: 0x0000000000000000 |
| [ 478.947552] hisi_zip 0000:31:00.0: qm_axi_rresp [error status=0x1] found |
| [ 478.955930] hisi_zip 0000:31:00.0: qm_db_timeout [error status=0x400] found |
| [ 478.955944] hisi_zip 0000:31:00.0: qm sq doorbell timeout in function 2 |
| |
| The Linux kernel CVE team has assigned CVE-2023-52453 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.2 with commit d9a871e4a143047d1d84a606772af319f11516f9 and fixed in 6.6.14 with commit 45f80b2f230df10600e6fa1b83b28bf1c334185e |
| Issue introduced in 6.2 with commit d9a871e4a143047d1d84a606772af319f11516f9 and fixed in 6.7.2 with commit 6bda81e24a35a856f58e6a5786de579b07371603 |
| Issue introduced in 6.2 with commit d9a871e4a143047d1d84a606772af319f11516f9 and fixed in 6.8 with commit be12ad45e15b5ee0e2526a50266ba1d295d26a88 |
| |
| 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-2023-52453 |
| 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/vfio/pci/hisilicon/hisi_acc_vfio_pci.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/45f80b2f230df10600e6fa1b83b28bf1c334185e |
| https://git.kernel.org/stable/c/6bda81e24a35a856f58e6a5786de579b07371603 |
| https://git.kernel.org/stable/c/be12ad45e15b5ee0e2526a50266ba1d295d26a88 |
