| 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-2024-46860: wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: mt76: mt7921: fix NULL pointer access in mt7921_ipv6_addr_change |
| |
| When disabling wifi mt7921_ipv6_addr_change() is called as a notifier. |
| At this point mvif->phy is already NULL so we cannot use it here. |
| |
| The Linux kernel CVE team has assigned CVE-2024-46860 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 4.16 with commit 7bc04215a66b60e198aecaee8418f6d79fa19faa and fixed in 6.6.52 with commit 4bfee9346d8c17d928ef6da2b8bffab88fa2a553 |
| Issue introduced in 4.16 with commit 7bc04215a66b60e198aecaee8418f6d79fa19faa and fixed in 6.10.11 with commit 8d92bafd4c67efb692f722d73a07412b5f88c6d6 |
| Issue introduced in 4.16 with commit 7bc04215a66b60e198aecaee8418f6d79fa19faa and fixed in 6.11 with commit 479ffee68d59c599f8aed8fa2dcc8e13e7bd13c3 |
| |
| 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-2024-46860 |
| 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/wireless/mediatek/mt76/mt7921/main.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/4bfee9346d8c17d928ef6da2b8bffab88fa2a553 |
| https://git.kernel.org/stable/c/8d92bafd4c67efb692f722d73a07412b5f88c6d6 |
| https://git.kernel.org/stable/c/479ffee68d59c599f8aed8fa2dcc8e13e7bd13c3 |
