| 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-2024-57801: net/mlx5e: Skip restore TC rules for vport rep without loaded flag |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net/mlx5e: Skip restore TC rules for vport rep without loaded flag |
| |
| During driver unload, unregister_netdev is called after unloading |
| vport rep. So, the mlx5e_rep_priv is already freed while trying to get |
| rpriv->netdev, or walk rpriv->tc_ht, which results in use-after-free. |
| So add the checking to make sure access the data of vport rep which is |
| still loaded. |
| |
| The Linux kernel CVE team has assigned CVE-2024-57801 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.6 with commit d1569537a837d66620aa7ffc2bddf918e902f227 and fixed in 6.6.70 with commit 3e45dd1622a2c1a83c11bf42fdd8c1810123d6c0 |
| Issue introduced in 6.6 with commit d1569537a837d66620aa7ffc2bddf918e902f227 and fixed in 6.12.9 with commit 47c78d3fc26e38ab805613a0f592dc8a820c7c64 |
| Issue introduced in 6.6 with commit d1569537a837d66620aa7ffc2bddf918e902f227 and fixed in 6.13 with commit 5a03b368562a7ff5f5f1f63b5adf8309cbdbd5be |
| |
| 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-2024-57801 |
| 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/mellanox/mlx5/core/esw/ipsec_fs.c |
| drivers/net/ethernet/mellanox/mlx5/core/eswitch.h |
| drivers/net/ethernet/mellanox/mlx5/core/eswitch_offloads.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/3e45dd1622a2c1a83c11bf42fdd8c1810123d6c0 |
| https://git.kernel.org/stable/c/47c78d3fc26e38ab805613a0f592dc8a820c7c64 |
| https://git.kernel.org/stable/c/5a03b368562a7ff5f5f1f63b5adf8309cbdbd5be |
