{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-42300",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nerofs: fix race in z_erofs_get_gbuf()\n\nIn z_erofs_get_gbuf(), the current task may be migrated to another\nCPU between `z_erofs_gbuf_id()` and `spin_lock(&gbuf->lock)`.\n\nTherefore, z_erofs_put_gbuf() will trigger the following issue\nwhich was found by stress test:\n\n<2>[772156.434168] kernel BUG at fs/erofs/zutil.c:58!\n..\n<4>[772156.435007]\n<4>[772156.439237] CPU: 0 PID: 3078 Comm: stress Kdump: loaded Tainted: G            E      6.10.0-rc7+ #2\n<4>[772156.439239] Hardware name: Alibaba Cloud Alibaba Cloud ECS, BIOS 1.0.0 01/01/2017\n<4>[772156.439241] pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)\n<4>[772156.439243] pc : z_erofs_put_gbuf+0x64/0x70 [erofs]\n<4>[772156.439252] lr : z_erofs_lz4_decompress+0x600/0x6a0 [erofs]\n..\n<6>[772156.445958] stress (3127): drop_caches: 1\n<4>[772156.446120] Call trace:\n<4>[772156.446121]  z_erofs_put_gbuf+0x64/0x70 [erofs]\n<4>[772156.446761]  z_erofs_lz4_decompress+0x600/0x6a0 [erofs]\n<4>[772156.446897]  z_erofs_decompress_queue+0x740/0xa10 [erofs]\n<4>[772156.447036]  z_erofs_runqueue+0x428/0x8c0 [erofs]\n<4>[772156.447160]  z_erofs_readahead+0x224/0x390 [erofs]\n.."
            }
        ]
    },
    "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": "f36f3010f676",
                                            "version_value": "49b22e06a947"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.10",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "6.10",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.10.3",
                                                        "lessThanOrEqual": "6.10.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.11",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/49b22e06a947727a6d1c802d2d9ad92420b90fc5",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/49b22e06a947727a6d1c802d2d9ad92420b90fc5"
            },
            {
                "url": "https://git.kernel.org/stable/c/7dc5537c3f8be87e005f0844a7626c987914f8fd",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/7dc5537c3f8be87e005f0844a7626c987914f8fd"
            }
        ]
    },
    "generator": {
        "engine": "bippy-c9c4e1df01b2"
    }
}