{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-26680",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnet: atlantic: Fix DMA mapping for PTP hwts ring\n\nFunction aq_ring_hwts_rx_alloc() maps extra AQ_CFG_RXDS_DEF bytes\nfor PTP HWTS ring but then generic aq_ring_free() does not take this\ninto account.\nCreate and use a specific function to free HWTS ring to fix this\nissue.\n\nTrace:\n[  215.351607] ------------[ cut here ]------------\n[  215.351612] DMA-API: atlantic 0000:4b:00.0: device driver frees DMA memory with different size [device address=0x00000000fbdd0000] [map size=34816 bytes] [unmap size=32768 bytes]\n[  215.351635] WARNING: CPU: 33 PID: 10759 at kernel/dma/debug.c:988 check_unmap+0xa6f/0x2360\n...\n[  215.581176] Call Trace:\n[  215.583632]  <TASK>\n[  215.585745]  ? show_trace_log_lvl+0x1c4/0x2df\n[  215.590114]  ? show_trace_log_lvl+0x1c4/0x2df\n[  215.594497]  ? debug_dma_free_coherent+0x196/0x210\n[  215.599305]  ? check_unmap+0xa6f/0x2360\n[  215.603147]  ? __warn+0xca/0x1d0\n[  215.606391]  ? check_unmap+0xa6f/0x2360\n[  215.610237]  ? report_bug+0x1ef/0x370\n[  215.613921]  ? handle_bug+0x3c/0x70\n[  215.617423]  ? exc_invalid_op+0x14/0x50\n[  215.621269]  ? asm_exc_invalid_op+0x16/0x20\n[  215.625480]  ? check_unmap+0xa6f/0x2360\n[  215.629331]  ? mark_lock.part.0+0xca/0xa40\n[  215.633445]  debug_dma_free_coherent+0x196/0x210\n[  215.638079]  ? __pfx_debug_dma_free_coherent+0x10/0x10\n[  215.643242]  ? slab_free_freelist_hook+0x11d/0x1d0\n[  215.648060]  dma_free_attrs+0x6d/0x130\n[  215.651834]  aq_ring_free+0x193/0x290 [atlantic]\n[  215.656487]  aq_ptp_ring_free+0x67/0x110 [atlantic]\n...\n[  216.127540] ---[ end trace 6467e5964dd2640b ]---\n[  216.132160] DMA-API: Mapped at:\n[  216.132162]  debug_dma_alloc_coherent+0x66/0x2f0\n[  216.132165]  dma_alloc_attrs+0xf5/0x1b0\n[  216.132168]  aq_ring_hwts_rx_alloc+0x150/0x1f0 [atlantic]\n[  216.132193]  aq_ptp_ring_alloc+0x1bb/0x540 [atlantic]\n[  216.132213]  aq_nic_init+0x4a1/0x760 [atlantic]"
            }
        ]
    },
    "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": "94ad94558b0f",
                                            "version_value": "466ceebe48cb"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "5.5",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "5.5",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.1.78",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.6.17",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.7.5",
                                                        "lessThanOrEqual": "6.7.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.8",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
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    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/466ceebe48cbba3f4506f165fca7111f9eb8bb12",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/466ceebe48cbba3f4506f165fca7111f9eb8bb12"
            },
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                "url": "https://git.kernel.org/stable/c/004fe5b7f59286a926a45e0cafc7870e9cdddd56",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/004fe5b7f59286a926a45e0cafc7870e9cdddd56"
            },
            {
                "url": "https://git.kernel.org/stable/c/e42e334c645575be5432adee224975d4f536fdb1",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/e42e334c645575be5432adee224975d4f536fdb1"
            },
            {
                "url": "https://git.kernel.org/stable/c/2e7d3b67630dfd8f178c41fa2217aa00e79a5887",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/2e7d3b67630dfd8f178c41fa2217aa00e79a5887"
            }
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