cvelist/2024/57xxx/CVE-2024-57891.json

{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-57891",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nsched_ext: Fix invalid irq restore in scx_ops_bypass()\n\nWhile adding outer irqsave/restore locking, 0e7ffff1b811 (\"scx: Fix raciness\nin scx_ops_bypass()\") forgot to convert an inner rq_unlock_irqrestore() to\nrq_unlock() which could re-enable IRQ prematurely leading to the following\nwarning:\n\n  raw_local_irq_restore() called with IRQs enabled\n  WARNING: CPU: 1 PID: 96 at kernel/locking/irqflag-debug.c:10 warn_bogus_irq_restore+0x30/0x40\n  ...\n  Sched_ext: create_dsq (enabling)\n  pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n  pc : warn_bogus_irq_restore+0x30/0x40\n  lr : warn_bogus_irq_restore+0x30/0x40\n  ...\n  Call trace:\n   warn_bogus_irq_restore+0x30/0x40 (P)\n   warn_bogus_irq_restore+0x30/0x40 (L)\n   scx_ops_bypass+0x224/0x3b8\n   scx_ops_enable.isra.0+0x2c8/0xaa8\n   bpf_scx_reg+0x18/0x30\n  ...\n  irq event stamp: 33739\n  hardirqs last  enabled at (33739): [<ffff8000800b699c>] scx_ops_bypass+0x174/0x3b8\n  hardirqs last disabled at (33738): [<ffff800080d48ad4>] _raw_spin_lock_irqsave+0xb4/0xd8\n\nDrop the stray _irqrestore()."
            }
        ]
    },
    "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": "0e7ffff1b8117b05635c87d3c9099f6aa9c9b689",
                                            "version_value": "786362ce60d79967875f43e0ba55ad7a5376c133"
                                        },
                                        {
                                            "version_value": "not down converted",
                                            "x_cve_json_5_version_data": {
                                                "versions": [
                                                    {
                                                        "version": "6.12",
                                                        "status": "affected"
                                                    },
                                                    {
                                                        "version": "0",
                                                        "lessThan": "6.12",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.12.9",
                                                        "lessThanOrEqual": "6.12.*",
                                                        "status": "unaffected",
                                                        "versionType": "semver"
                                                    },
                                                    {
                                                        "version": "6.13-rc6",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/786362ce60d79967875f43e0ba55ad7a5376c133",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/786362ce60d79967875f43e0ba55ad7a5376c133"
            },
            {
                "url": "https://git.kernel.org/stable/c/18b2093f4598d8ee67a8153badc93f0fa7686b8a",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/18b2093f4598d8ee67a8153badc93f0fa7686b8a"
            }
        ]
    },
    "generator": {
        "engine": "bippy-5f407fcff5a0"
    }
}