| From bippy-1.2.0 Mon Sep 17 00:00:00 2001 |
| From: Greg Kroah-Hartman <gregkh@kernel.org> |
| To: <linux-cve-announce@vger.kernel.org> |
| Reply-to: <cve@kernel.org>, <linux-kernel@vger.kernel.org> |
| Subject: CVE-2025-37973: wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: cfg80211: fix out-of-bounds access during multi-link element defragmentation |
| |
| Currently during the multi-link element defragmentation process, the |
| multi-link element length added to the total IEs length when calculating |
| the length of remaining IEs after the multi-link element in |
| cfg80211_defrag_mle(). This could lead to out-of-bounds access if the |
| multi-link element or its corresponding fragment elements are the last |
| elements in the IEs buffer. |
| |
| To address this issue, correctly calculate the remaining IEs length by |
| deducting the multi-link element end offset from total IEs end offset. |
| |
| The Linux kernel CVE team has assigned CVE-2025-37973 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.5 with commit 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10 and fixed in 6.6.91 with commit 73dde269a1a43e6b1aa92eba13ad2df58bfdd38e |
| Issue introduced in 6.5 with commit 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10 and fixed in 6.12.29 with commit 9423f6da825172b8dc60d4688ed3d147291c3be9 |
| Issue introduced in 6.5 with commit 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10 and fixed in 6.14.7 with commit e1c6d0c6199bd5f4cfc7a66ae7032b6e805f904d |
| Issue introduced in 6.5 with commit 2481b5da9c6b2ee1fde55a1c29eb2ca377145a10 and fixed in 6.15 with commit 023c1f2f0609218103cbcb48e0104b144d4a16dc |
| |
| 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-2025-37973 |
| 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/scan.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/73dde269a1a43e6b1aa92eba13ad2df58bfdd38e |
| https://git.kernel.org/stable/c/9423f6da825172b8dc60d4688ed3d147291c3be9 |
| https://git.kernel.org/stable/c/e1c6d0c6199bd5f4cfc7a66ae7032b6e805f904d |
| https://git.kernel.org/stable/c/023c1f2f0609218103cbcb48e0104b144d4a16dc |
