{
    "data_version": "4.0",
    "data_type": "CVE",
    "data_format": "MITRE",
    "CVE_data_meta": {
        "ID": "CVE-2024-36028",
        "ASSIGNER": "cve@kernel.org",
        "STATE": "PUBLIC"
    },
    "description": {
        "description_data": [
            {
                "lang": "eng",
                "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nmm/hugetlb: fix DEBUG_LOCKS_WARN_ON(1) when dissolve_free_hugetlb_folio()\n\nWhen I did memory failure tests recently, below warning occurs:\n\nDEBUG_LOCKS_WARN_ON(1)\nWARNING: CPU: 8 PID: 1011 at kernel/locking/lockdep.c:232 __lock_acquire+0xccb/0x1ca0\nModules linked in: mce_inject hwpoison_inject\nCPU: 8 PID: 1011 Comm: bash Kdump: loaded Not tainted 6.9.0-rc3-next-20240410-00012-gdb69f219f4be #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\nRIP: 0010:__lock_acquire+0xccb/0x1ca0\nRSP: 0018:ffffa7a1c7fe3bd0 EFLAGS: 00000082\nRAX: 0000000000000000 RBX: eb851eb853975fcf RCX: ffffa1ce5fc1c9c8\nRDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffffa1ce5fc1c9c0\nRBP: ffffa1c6865d3280 R08: ffffffffb0f570a8 R09: 0000000000009ffb\nR10: 0000000000000286 R11: ffffffffb0f2ad50 R12: ffffa1c6865d3d10\nR13: ffffa1c6865d3c70 R14: 0000000000000000 R15: 0000000000000004\nFS:  00007ff9f32aa740(0000) GS:ffffa1ce5fc00000(0000) knlGS:0000000000000000\nCS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033\nCR2: 00007ff9f3134ba0 CR3: 00000008484e4000 CR4: 00000000000006f0\nCall Trace:\n <TASK>\n lock_acquire+0xbe/0x2d0\n _raw_spin_lock_irqsave+0x3a/0x60\n hugepage_subpool_put_pages.part.0+0xe/0xc0\n free_huge_folio+0x253/0x3f0\n dissolve_free_huge_page+0x147/0x210\n __page_handle_poison+0x9/0x70\n memory_failure+0x4e6/0x8c0\n hard_offline_page_store+0x55/0xa0\n kernfs_fop_write_iter+0x12c/0x1d0\n vfs_write+0x380/0x540\n ksys_write+0x64/0xe0\n do_syscall_64+0xbc/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7ff9f3114887\nRSP: 002b:00007ffecbacb458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007ff9f3114887\nRDX: 000000000000000c RSI: 0000564494164e10 RDI: 0000000000000001\nRBP: 0000564494164e10 R08: 00007ff9f31d1460 R09: 000000007fffffff\nR10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c\nR13: 00007ff9f321b780 R14: 00007ff9f3217600 R15: 00007ff9f3216a00\n </TASK>\nKernel panic - not syncing: kernel: panic_on_warn set ...\nCPU: 8 PID: 1011 Comm: bash Kdump: loaded Not tainted 6.9.0-rc3-next-20240410-00012-gdb69f219f4be #3\nHardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.14.0-0-g155821a1990b-prebuilt.qemu.org 04/01/2014\nCall Trace:\n <TASK>\n panic+0x326/0x350\n check_panic_on_warn+0x4f/0x50\n __warn+0x98/0x190\n report_bug+0x18e/0x1a0\n handle_bug+0x3d/0x70\n exc_invalid_op+0x18/0x70\n asm_exc_invalid_op+0x1a/0x20\nRIP: 0010:__lock_acquire+0xccb/0x1ca0\nRSP: 0018:ffffa7a1c7fe3bd0 EFLAGS: 00000082\nRAX: 0000000000000000 RBX: eb851eb853975fcf RCX: ffffa1ce5fc1c9c8\nRDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffffa1ce5fc1c9c0\nRBP: ffffa1c6865d3280 R08: ffffffffb0f570a8 R09: 0000000000009ffb\nR10: 0000000000000286 R11: ffffffffb0f2ad50 R12: ffffa1c6865d3d10\nR13: ffffa1c6865d3c70 R14: 0000000000000000 R15: 0000000000000004\n lock_acquire+0xbe/0x2d0\n _raw_spin_lock_irqsave+0x3a/0x60\n hugepage_subpool_put_pages.part.0+0xe/0xc0\n free_huge_folio+0x253/0x3f0\n dissolve_free_huge_page+0x147/0x210\n __page_handle_poison+0x9/0x70\n memory_failure+0x4e6/0x8c0\n hard_offline_page_store+0x55/0xa0\n kernfs_fop_write_iter+0x12c/0x1d0\n vfs_write+0x380/0x540\n ksys_write+0x64/0xe0\n do_syscall_64+0xbc/0x1d0\n entry_SYSCALL_64_after_hwframe+0x77/0x7f\nRIP: 0033:0x7ff9f3114887\nRSP: 002b:00007ffecbacb458 EFLAGS: 00000246 ORIG_RAX: 0000000000000001\nRAX: ffffffffffffffda RBX: 000000000000000c RCX: 00007ff9f3114887\nRDX: 000000000000000c RSI: 0000564494164e10 RDI: 0000000000000001\nRBP: 0000564494164e10 R08: 00007ff9f31d1460 R09: 000000007fffffff\nR10: 0000000000000000 R11: 0000000000000246 R12: 000000000000000c\nR13: 00007ff9f321b780 R14: 00007ff9f3217600 R15: 00007ff9f3216a00\n </TASK>\n\nAfter git bisecting and digging into the code, I believe the root cause is\nthat _deferred_list field of folio is unioned with _hugetlb_subpool field.\nIn __update_and_free_hugetlb_folio(), folio->_deferred_\n---truncated---"
            }
        ]
    },
    "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": "1b4ce2952b4f",
                                            "version_value": "2effe407f756"
                                        },
                                        {
                                            "version_affected": "<",
                                            "version_name": "32c877191e02",
                                            "version_value": "7e0a32287741"
                                        },
                                        {
                                            "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": "6.1.91",
                                                        "lessThanOrEqual": "6.1.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.6.31",
                                                        "lessThanOrEqual": "6.6.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.8.9",
                                                        "lessThanOrEqual": "6.8.*",
                                                        "status": "unaffected",
                                                        "versionType": "custom"
                                                    },
                                                    {
                                                        "version": "6.9",
                                                        "lessThanOrEqual": "*",
                                                        "status": "unaffected",
                                                        "versionType": "original_commit_for_fix"
                                                    }
                                                ],
                                                "defaultStatus": "affected"
                                            }
                                        }
                                    ]
                                }
                            }
                        ]
                    }
                }
            ]
        }
    },
    "references": {
        "reference_data": [
            {
                "url": "https://git.kernel.org/stable/c/2effe407f7563add41750fd7e03da4ea44b98099",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/2effe407f7563add41750fd7e03da4ea44b98099"
            },
            {
                "url": "https://git.kernel.org/stable/c/7e0a322877416e8c648819a8e441cf8c790b2cce",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/7e0a322877416e8c648819a8e441cf8c790b2cce"
            },
            {
                "url": "https://git.kernel.org/stable/c/9c9b32d46afab2d911897914181c488954012300",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/9c9b32d46afab2d911897914181c488954012300"
            },
            {
                "url": "https://git.kernel.org/stable/c/52ccdde16b6540abe43b6f8d8e1e1ec90b0983af",
                "refsource": "MISC",
                "name": "https://git.kernel.org/stable/c/52ccdde16b6540abe43b6f8d8e1e1ec90b0983af"
            }
        ]
    },
    "generator": {
        "engine": "bippy-a5840b7849dd"
    }
}