| 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-2024-50235: wifi: cfg80211: clear wdev->cqm_config pointer on free |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: cfg80211: clear wdev->cqm_config pointer on free |
| |
| When we free wdev->cqm_config when unregistering, we also |
| need to clear out the pointer since the same wdev/netdev |
| may get re-registered in another network namespace, then |
| destroyed later, running this code again, which results in |
| a double-free. |
| |
| The Linux kernel CVE team has assigned CVE-2024-50235 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.1.57 with commit c797498e860e9a435a651bbf0789433684ce6dd8 and fixed in 6.1.116 with commit ba392e1355ba74b1d4fa11b85f71ab6ed7ecc058 |
| Issue introduced in 6.6 with commit 37c20b2effe987b806c8de6d12978e4ffeff026f and fixed in 6.6.60 with commit 6c44abb2d4c3262737d5d67832daebc8cf48b8c9 |
| Issue introduced in 6.6 with commit 37c20b2effe987b806c8de6d12978e4ffeff026f and fixed in 6.11.7 with commit 64e4c45d23cd7f6167f69cc2d2877bc7f54292e5 |
| Issue introduced in 6.6 with commit 37c20b2effe987b806c8de6d12978e4ffeff026f and fixed in 6.12 with commit d5fee261dfd9e17b08b1df8471ac5d5736070917 |
| Issue introduced in 6.5.7 with commit 32fb9b7d98c3e586bddfb978d383aa8d2b1211bc |
| |
| 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-2024-50235 |
| 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/wireless/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/ba392e1355ba74b1d4fa11b85f71ab6ed7ecc058 |
| https://git.kernel.org/stable/c/6c44abb2d4c3262737d5d67832daebc8cf48b8c9 |
| https://git.kernel.org/stable/c/64e4c45d23cd7f6167f69cc2d2877bc7f54292e5 |
| https://git.kernel.org/stable/c/d5fee261dfd9e17b08b1df8471ac5d5736070917 |
