| 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-2022-49025: net/mlx5e: Fix use-after-free when reverting termination table |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| net/mlx5e: Fix use-after-free when reverting termination table |
| |
| When having multiple dests with termination tables and second one |
| or afterwards fails the driver reverts usage of term tables but |
| doesn't reset the assignment in attr->dests[num_vport_dests].termtbl |
| which case a use-after-free when releasing the rule. |
| Fix by resetting the assignment of termtbl to null. |
| |
| The Linux kernel CVE team has assigned CVE-2022-49025 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 5.3 with commit 10caabdaad5ace85577a453da97d1f8d3b944427 and fixed in 5.4.226 with commit 0a2d73a77060c3cbdc6e801cd5d979d674cd404b |
| Issue introduced in 5.3 with commit 10caabdaad5ace85577a453da97d1f8d3b944427 and fixed in 5.10.158 with commit 0d2f9d95d9fbe993f3c4bafb87d59897b0325aff |
| Issue introduced in 5.3 with commit 10caabdaad5ace85577a453da97d1f8d3b944427 and fixed in 5.15.82 with commit 372eb550faa0757349040fd43f59483cbfdb2c0b |
| Issue introduced in 5.3 with commit 10caabdaad5ace85577a453da97d1f8d3b944427 and fixed in 6.0.12 with commit e6d2d26a49c3a9cd46b232975e45236304810904 |
| Issue introduced in 5.3 with commit 10caabdaad5ace85577a453da97d1f8d3b944427 and fixed in 6.1 with commit 52c795af04441d76f565c4634f893e5b553df2ae |
| |
| 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-2022-49025 |
| 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/eswitch_offloads_termtbl.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/0a2d73a77060c3cbdc6e801cd5d979d674cd404b |
| https://git.kernel.org/stable/c/0d2f9d95d9fbe993f3c4bafb87d59897b0325aff |
| https://git.kernel.org/stable/c/372eb550faa0757349040fd43f59483cbfdb2c0b |
| https://git.kernel.org/stable/c/e6d2d26a49c3a9cd46b232975e45236304810904 |
| https://git.kernel.org/stable/c/52c795af04441d76f565c4634f893e5b553df2ae |
