| 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-2024-26734: devlink: fix possible use-after-free and memory leaks in devlink_init() |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| devlink: fix possible use-after-free and memory leaks in devlink_init() |
| |
| The pernet operations structure for the subsystem must be registered |
| before registering the generic netlink family. |
| |
| Make an unregister in case of unsuccessful registration. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26734 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.3 with commit 687125b5799cd5120437fa455cfccbe8537916ff and fixed in 6.6.19 with commit 919092bd5482b7070ae66d1daef73b600738f3a2 |
| Issue introduced in 6.3 with commit 687125b5799cd5120437fa455cfccbe8537916ff and fixed in 6.7.7 with commit e91d3561e28d7665f4f837880501dc8755f635a9 |
| Issue introduced in 6.3 with commit 687125b5799cd5120437fa455cfccbe8537916ff and fixed in 6.8 with commit def689fc26b9a9622d2e2cb0c4933dd3b1c8071c |
| |
| 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-2024-26734 |
| 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: |
| net/devlink/core.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/919092bd5482b7070ae66d1daef73b600738f3a2 |
| https://git.kernel.org/stable/c/e91d3561e28d7665f4f837880501dc8755f635a9 |
| https://git.kernel.org/stable/c/def689fc26b9a9622d2e2cb0c4933dd3b1c8071c |
