| 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-2024-42291: ice: Add a per-VF limit on number of FDIR filters |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| ice: Add a per-VF limit on number of FDIR filters |
| |
| While the iavf driver adds a s/w limit (128) on the number of FDIR |
| filters that the VF can request, a malicious VF driver can request more |
| than that and exhaust the resources for other VFs. |
| |
| Add a similar limit in ice. |
| |
| The Linux kernel CVE team has assigned CVE-2024-42291 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.13 with commit 1f7ea1cd6a3748427512ccc9582e18cd9efea966 and fixed in 5.15.172 with commit e81b674ead8e2172b2a69e7b45e079239ace4dbc |
| Issue introduced in 5.13 with commit 1f7ea1cd6a3748427512ccc9582e18cd9efea966 and fixed in 6.1.103 with commit 8e02cd98a6e24389d476e28436d41e620ed8e559 |
| Issue introduced in 5.13 with commit 1f7ea1cd6a3748427512ccc9582e18cd9efea966 and fixed in 6.6.44 with commit d62389073a5b937413e2d1bc1da06ccff5103c0c |
| Issue introduced in 5.13 with commit 1f7ea1cd6a3748427512ccc9582e18cd9efea966 and fixed in 6.10.3 with commit 292081c4e7f575a79017d5cbe1a0ec042783976f |
| Issue introduced in 5.13 with commit 1f7ea1cd6a3748427512ccc9582e18cd9efea966 and fixed in 6.11 with commit 6ebbe97a488179f5dc85f2f1e0c89b486e99ee97 |
| |
| 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-2024-42291 |
| 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/ice/ice_ethtool_fdir.c |
| drivers/net/ethernet/intel/ice/ice_fdir.h |
| drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.c |
| drivers/net/ethernet/intel/ice/ice_virtchnl_fdir.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/e81b674ead8e2172b2a69e7b45e079239ace4dbc |
| https://git.kernel.org/stable/c/8e02cd98a6e24389d476e28436d41e620ed8e559 |
| https://git.kernel.org/stable/c/d62389073a5b937413e2d1bc1da06ccff5103c0c |
| https://git.kernel.org/stable/c/292081c4e7f575a79017d5cbe1a0ec042783976f |
| https://git.kernel.org/stable/c/6ebbe97a488179f5dc85f2f1e0c89b486e99ee97 |
