{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-45001",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: mana: Fix RX buf alloc_size alignment and atomic op panic\n\nThe MANA driver's RX buffer alloc_size is passed into napi_build_skb() to\ncreate SKB. skb_shinfo(skb) is located at the end of skb, and its alignment\nis affected by the alloc_size passed into napi_build_skb(). The size needs\nto be aligned properly for better performance and atomic operations.\nOtherwise, on ARM64 CPU, for certain MTU settings like 4000, atomic\noperations may panic on the skb_shinfo(skb)->dataref due to alignment fault.\n\nTo fix this bug, add proper alignment to the alloc_size calculation.\n\nSample panic info:\n[  253.298819] Unable to handle kernel paging request at virtual address ffff000129ba5cce\n[  253.300900] Mem abort info:\n[  253.301760]   ESR = 0x0000000096000021\n[  253.302825]   EC = 0x25: DABT (current EL), IL = 32 bits\n[  253.304268]   SET = 0, FnV = 0\n[  253.305172]   EA = 0, S1PTW = 0\n[  253.306103]   FSC = 0x21: alignment fault\nCall trace:\n __skb_clone+0xfc/0x198\n skb_clone+0x78/0xe0\n raw6_local_deliver+0xfc/0x228\n ip6_protocol_deliver_rcu+0x80/0x500\n ip6_input_finish+0x48/0x80\n ip6_input+0x48/0xc0\n ip6_sublist_rcv_finish+0x50/0x78\n ip6_sublist_rcv+0x1cc/0x2b8\n ipv6_list_rcv+0x100/0x150\n __netif_receive_skb_list_core+0x180/0x220\n netif_receive_skb_list_internal+0x198/0x2a8\n __napi_poll+0x138/0x250\n net_rx_action+0x148/0x330\n handle_softirqs+0x12c/0x3a0"
            }
        ]
    },
    "problemtype": {
        "problemtype_data": [
            {
                "description": [
                    {
                        "lang": "eng",
                        "value": "n/a"
                    }
                ]
            }
        ]
    },
    "affects": {
        "vendor": {
            "vendor_data": [
                {
                    "vendor_name": "Linux",
                    "product": {
                        "product_data": [
                            {
                                "product_name": "Linux",
                                "version": {
                                    "version_data": [
                                        {
                                            "version_affected": "<",
                                            "version_name": "80f6215b450e",
                                            "version_value": "65f20b174ec0"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.4",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "6.4",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.6.48",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.10.7",
                                                        "lessThanOrEqual": "6.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.11",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
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    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/65f20b174ec0172f2d6bcfd8533ab9c9e7e347fa",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/65f20b174ec0172f2d6bcfd8533ab9c9e7e347fa"
            },
            {
                "url": "https://git.kernel.org/stable/c/e6bea6a45f8a401f3d5a430bc81814f0cc8848cf",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/e6bea6a45f8a401f3d5a430bc81814f0cc8848cf"
            },
            {
                "url": "https://git.kernel.org/stable/c/32316f676b4ee87c0404d333d248ccf777f739bc",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/32316f676b4ee87c0404d333d248ccf777f739bc"
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        ]
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}