| 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-2024-26779: wifi: mac80211: fix race condition on enabling fast-xmit |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: mac80211: fix race condition on enabling fast-xmit |
| |
| fast-xmit must only be enabled after the sta has been uploaded to the driver, |
| otherwise it could end up passing the not-yet-uploaded sta via drv_tx calls |
| to the driver, leading to potential crashes because of uninitialized drv_priv |
| data. |
| Add a missing sta->uploaded check and re-check fast xmit after inserting a sta. |
| |
| The Linux kernel CVE team has assigned CVE-2024-26779 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Fixed in 4.19.308 with commit 76fad1174a0cae6fc857b9f88b261a2e4f07d587 |
| Fixed in 5.4.270 with commit 85720b69aef177318f4a18efbcc4302228a340e5 |
| Fixed in 5.10.211 with commit 5ffab99e070b9f8ae0cf60c3c3602b84eee818dd |
| Fixed in 5.15.150 with commit 88c18fd06608b3adee547102505d715f21075c9d |
| Fixed in 6.1.80 with commit eb39bb548bf974acad7bd6780fe11f9e6652d696 |
| Fixed in 6.6.19 with commit 54b79d8786964e2f840e8a2ec4a9f9a50f3d4954 |
| Fixed in 6.7.7 with commit 281280276b70c822f55ce15b661f6d1d3228aaa9 |
| Fixed in 6.8 with commit bcbc84af1183c8cf3d1ca9b78540c2185cd85e7f |
| |
| 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-2024-26779 |
| 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/mac80211/sta_info.c |
| net/mac80211/tx.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/76fad1174a0cae6fc857b9f88b261a2e4f07d587 |
| https://git.kernel.org/stable/c/85720b69aef177318f4a18efbcc4302228a340e5 |
| https://git.kernel.org/stable/c/5ffab99e070b9f8ae0cf60c3c3602b84eee818dd |
| https://git.kernel.org/stable/c/88c18fd06608b3adee547102505d715f21075c9d |
| https://git.kernel.org/stable/c/eb39bb548bf974acad7bd6780fe11f9e6652d696 |
| https://git.kernel.org/stable/c/54b79d8786964e2f840e8a2ec4a9f9a50f3d4954 |
| https://git.kernel.org/stable/c/281280276b70c822f55ce15b661f6d1d3228aaa9 |
| https://git.kernel.org/stable/c/bcbc84af1183c8cf3d1ca9b78540c2185cd85e7f |
