| 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-2022-49019: net: ethernet: nixge: fix NULL dereference |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net: ethernet: nixge: fix NULL dereference |
| |
| In function nixge_hw_dma_bd_release() dereference of NULL pointer |
| priv->rx_bd_v is possible for the case of its allocation failure in |
| nixge_hw_dma_bd_init(). |
| |
| Move for() loop with priv->rx_bd_v dereference under the check for |
| its validity. |
| |
| Found by Linux Verification Center (linuxtesting.org) with SVACE. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49019 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.17 with commit 492caffa8a1a405f661c111acabfe6b8b9645db8 and fixed in 5.4.226 with commit 910c0264b64ef2dad8887714a7c56c93e39a0ed3 |
| Issue introduced in 4.17 with commit 492caffa8a1a405f661c111acabfe6b8b9645db8 and fixed in 5.10.158 with commit 45752af0247589e6d3dede577415bfe117b4392c |
| Issue introduced in 4.17 with commit 492caffa8a1a405f661c111acabfe6b8b9645db8 and fixed in 5.15.82 with commit 9c584d6d9cfb935dce8fc81a4c26debac0a3049b |
| Issue introduced in 4.17 with commit 492caffa8a1a405f661c111acabfe6b8b9645db8 and fixed in 6.0.12 with commit 80e82f7b440b65cf131dce10f487dc73a7046e6b |
| Issue introduced in 4.17 with commit 492caffa8a1a405f661c111acabfe6b8b9645db8 and fixed in 6.1 with commit 9256db4e45e8b497b0e993cc3ed4ad08eb2389b6 |
| |
| 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-2022-49019 |
| 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/ni/nixge.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/910c0264b64ef2dad8887714a7c56c93e39a0ed3 |
| https://git.kernel.org/stable/c/45752af0247589e6d3dede577415bfe117b4392c |
| https://git.kernel.org/stable/c/9c584d6d9cfb935dce8fc81a4c26debac0a3049b |
| https://git.kernel.org/stable/c/80e82f7b440b65cf131dce10f487dc73a7046e6b |
| https://git.kernel.org/stable/c/9256db4e45e8b497b0e993cc3ed4ad08eb2389b6 |
