{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-26710",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\npowerpc/kasan: Limit KASAN thread size increase to 32KB\n\nKASAN is seen to increase stack usage, to the point that it was reported\nto lead to stack overflow on some 32-bit machines (see link).\n\nTo avoid overflows the stack size was doubled for KASAN builds in\ncommit 3e8635fb2e07 (\"powerpc/kasan: Force thread size increase with\nKASAN\").\n\nHowever with a 32KB stack size to begin with, the doubling leads to a\n64KB stack, which causes build errors:\n  arch/powerpc/kernel/switch.S:249: Error: operand out of range (0x000000000000fe50 is not between 0xffffffffffff8000 and 0x0000000000007fff)\n\nAlthough the asm could be reworked, in practice a 32KB stack seems\nsufficient even for KASAN builds - the additional usage seems to be in\nthe 2-3KB range for a 64-bit KASAN build.\n\nSo only increase the stack for KASAN if the stack size is < 32KB."
            }
        ]
    },
    "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": "9ccf64e763ac",
                                            "version_value": "4297217bcf1f"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "b38014874530",
                                            "version_value": "4cc31fa07445"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "58f396513cb1",
                                            "version_value": "b29b16bd836a"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "18f14afe2816",
                                            "version_value": "f1acb109505d"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "6.1.75",
                                            "version_value": "6.1.79"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "6.6.14",
                                            "version_value": "6.6.18"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "6.7.2",
                                            "version_value": "6.7.6"
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/4297217bcf1f0948a19c2bacc6b68d92e7778ad9",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/4297217bcf1f0948a19c2bacc6b68d92e7778ad9"
            },
            {
                "url": "https://git.kernel.org/stable/c/4cc31fa07445879a13750cb061bb8c2654975fcb",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/4cc31fa07445879a13750cb061bb8c2654975fcb"
            },
            {
                "url": "https://git.kernel.org/stable/c/b29b16bd836a838b7690f80e37f8376414c74cbe",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/b29b16bd836a838b7690f80e37f8376414c74cbe"
            },
            {
                "url": "https://git.kernel.org/stable/c/f1acb109505d983779bbb7e20a1ee6244d2b5736",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/f1acb109505d983779bbb7e20a1ee6244d2b5736"
            }
        ]
    },
    "generator": {
        "engine": "bippy-9e1c9544281a"
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}