| 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-2024-40999: net: ena: Add validation for completion descriptors consistency |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: ena: Add validation for completion descriptors consistency |
| |
| Validate that `first` flag is set only for the first |
| descriptor in multi-buffer packets. |
| In case of an invalid descriptor, a reset will occur. |
| A new reset reason for RX data corruption has been added. |
| |
| The Linux kernel CVE team has assigned CVE-2024-40999 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 6.9.7 with commit 42146ee5286f16f1674a84f7c274dcca65c6ff2e |
| Fixed in 6.10 with commit b37b98a3a0c1198bafe8c2d9ce0bc845b4e7a9a7 |
| |
| 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-2024-40999 |
| 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/amazon/ena/ena_eth_com.c |
| drivers/net/ethernet/amazon/ena/ena_netdev.c |
| drivers/net/ethernet/amazon/ena/ena_regs_defs.h |
| |
| |
| 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/42146ee5286f16f1674a84f7c274dcca65c6ff2e |
| https://git.kernel.org/stable/c/b37b98a3a0c1198bafe8c2d9ce0bc845b4e7a9a7 |
