| 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-2024-47714: wifi: mt76: mt7996: use hweight16 to get correct tx antenna |
| |
| Description |
| =========== |
| |
| In the Linux kernel, the following vulnerability has been resolved: |
| |
| wifi: mt76: mt7996: use hweight16 to get correct tx antenna |
| |
| The chainmask is u16 so using hweight8 cannot get correct tx_ant. |
| Without this patch, the tx_ant of band 2 would be -1 and lead to the |
| following issue: |
| BUG: KASAN: stack-out-of-bounds in mt7996_mcu_add_sta+0x12e0/0x16e0 [mt7996e] |
| |
| The Linux kernel CVE team has assigned CVE-2024-47714 to this issue. |
| |
| |
| Affected and fixed versions |
| =========================== |
| |
| Issue introduced in 6.2 with commit 98686cd21624c75a043e96812beadddf4f6f48e5 and fixed in 6.6.54 with commit 50d87e3b70980abc090676b6b4703fcbd96221f9 |
| Issue introduced in 6.2 with commit 98686cd21624c75a043e96812beadddf4f6f48e5 and fixed in 6.10.13 with commit 8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3 |
| Issue introduced in 6.2 with commit 98686cd21624c75a043e96812beadddf4f6f48e5 and fixed in 6.11.2 with commit 33954930870c18ec549e4bca0eeff43e252cb740 |
| Issue introduced in 6.2 with commit 98686cd21624c75a043e96812beadddf4f6f48e5 and fixed in 6.12 with commit f98c3de92bb05dac4a4969df8a4595ed380b4604 |
| |
| 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-2024-47714 |
| 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/mt7996/mcu.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/50d87e3b70980abc090676b6b4703fcbd96221f9 |
| https://git.kernel.org/stable/c/8f51fc8a9e2fd96363d8ec3f4ee4b78dd64754e3 |
| https://git.kernel.org/stable/c/33954930870c18ec549e4bca0eeff43e252cb740 |
| https://git.kernel.org/stable/c/f98c3de92bb05dac4a4969df8a4595ed380b4604 |
