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Message-ID: <2024102119-CVE-2024-47714-f88b@gregkh> Date: Mon, 21 Oct 2024 14:00:42 +0200 From: Greg Kroah-Hartman <gregkh@...uxfoundation.org> To: linux-cve-announce@...r.kernel.org Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.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 98686cd21624 and fixed in 6.6.54 with commit 50d87e3b7098 Issue introduced in 6.2 with commit 98686cd21624 and fixed in 6.10.13 with commit 8f51fc8a9e2f Issue introduced in 6.2 with commit 98686cd21624 and fixed in 6.11.2 with commit 33954930870c Issue introduced in 6.2 with commit 98686cd21624 and fixed in 6.12-rc1 with commit f98c3de92bb0 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
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