{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-38598",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmd: fix resync softlockup when bitmap size is less than array size\n\nIs is reported that for dm-raid10, lvextend + lvchange --syncaction will\ntrigger following softlockup:\n\nkernel:watchdog: BUG: soft lockup - CPU#3 stuck for 26s! [mdX_resync:6976]\nCPU: 7 PID: 3588 Comm: mdX_resync Kdump: loaded Not tainted 6.9.0-rc4-next-20240419 #1\nRIP: 0010:_raw_spin_unlock_irq+0x13/0x30\nCall Trace:\n <TASK>\n md_bitmap_start_sync+0x6b/0xf0\n raid10_sync_request+0x25c/0x1b40 [raid10]\n md_do_sync+0x64b/0x1020\n md_thread+0xa7/0x170\n kthread+0xcf/0x100\n ret_from_fork+0x30/0x50\n ret_from_fork_asm+0x1a/0x30\n\nAnd the detailed process is as follows:\n\nmd_do_sync\n j = mddev->resync_min\n while (j < max_sectors)\n  sectors = raid10_sync_request(mddev, j, &skipped)\n   if (!md_bitmap_start_sync(..., &sync_blocks))\n    // md_bitmap_start_sync set sync_blocks to 0\n    return sync_blocks + sectors_skippe;\n  // sectors = 0;\n  j += sectors;\n  // j never change\n\nRoot cause is that commit 301867b1c168 (\"md/raid10: check\nslab-out-of-bounds in md_bitmap_get_counter\") return early from\nmd_bitmap_get_counter(), without setting returned blocks.\n\nFix this problem by always set returned blocks from\nmd_bitmap_get_counter\"(), as it used to be.\n\nNoted that this patch just fix the softlockup problem in kernel, the\ncase that bitmap size doesn't match array size still need to be fixed."
            }
        ]
    },
    "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": "374fb914304d",
                                            "version_value": "d4b9c764d48f"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "b0b971fe7d61",
                                            "version_value": "43771597feba"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "39fa14e824ac",
                                            "version_value": "3f5b73ef8fd6"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "a134dd582c0d",
                                            "version_value": "69296914bfd5"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "be1a3ec63a84",
                                            "version_value": "71e8e4f288e7"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "301867b1c168",
                                            "version_value": "c9566b812c8f"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.5",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "6.5",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "4.19.316",
                                                        "lessThanOrEqual": "4.19.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.4.278",
                                                        "lessThanOrEqual": "5.4.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.10.219",
                                                        "lessThanOrEqual": "5.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "5.15.161",
                                                        "lessThanOrEqual": "5.15.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.1.93",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.6.33",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.8.12",
                                                        "lessThanOrEqual": "6.8.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.9.3",
                                                        "lessThanOrEqual": "6.9.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.10",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
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                "url": "https://git.kernel.org/stable/c/d4b9c764d48fa41caa24cfb4275f3aa9fb4bd798",
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                "url": "https://git.kernel.org/stable/c/43771597feba89a839c5f893716df88ae5c237ce",
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                "name": "https://git.kernel.org/stable/c/43771597feba89a839c5f893716df88ae5c237ce"
            },
            {
                "url": "https://git.kernel.org/stable/c/3f5b73ef8fd6268cbc968b308d8eafe56fda97f3",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/3f5b73ef8fd6268cbc968b308d8eafe56fda97f3"
            },
            {
                "url": "https://git.kernel.org/stable/c/69296914bfd508c85935bf5f711cad9b0fe78492",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/69296914bfd508c85935bf5f711cad9b0fe78492"
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            {
                "url": "https://git.kernel.org/stable/c/71e8e4f288e74a896b6d9cd194f3bab12bd7a10f",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/71e8e4f288e74a896b6d9cd194f3bab12bd7a10f"
            },
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                "url": "https://git.kernel.org/stable/c/c9566b812c8f66160466cc1e29df6d3646add0b1",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/c9566b812c8f66160466cc1e29df6d3646add0b1"
            },
            {
                "url": "https://git.kernel.org/stable/c/5817f43ae1a118855676f57ef7ab50e37eac7482",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/5817f43ae1a118855676f57ef7ab50e37eac7482"
            },
            {
                "url": "https://git.kernel.org/stable/c/8bbc71315e0ae4bb7e37f8d43b915e1cb01a481b",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/8bbc71315e0ae4bb7e37f8d43b915e1cb01a481b"
            },
            {
                "url": "https://git.kernel.org/stable/c/f0e729af2eb6bee9eb58c4df1087f14ebaefe26b",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/f0e729af2eb6bee9eb58c4df1087f14ebaefe26b"
            }
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