{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-53326",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-06-09T07:44:35.398Z",
        "datePublished": "2026-07-01T13:32:12.924Z",
        "dateUpdated": "2026-07-04T11:51:04.894Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-07-04T11:51:04.894Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\ndebugobjects: Don't call fill_pool() in early boot hardirq context\n\nWhen booting a debug PREEMPT_RT kernel on an ARM64 system, a \"inconsistent\n{HARDIRQ-ON-W} -> {IN-HARDIRQ-W} usage\" lockdep warning message was\nreported to the console.\n\nDuring early boot, interrupts are enabled before the scheduler is\nenabled. In this window (before SYSTEM_SCHEDULING is set) interrupts can\nfire and in the hard interrupt context handler attempt to fill the pool\n\nThis can lead to a deadlock when the interrupt occurred when the interrupt\nhits a region which holds a lock that is required to be taken in the\nallocation path.\n\nAdd a new can_fill_pool() helper and reorder the exception rule and forbid\nthis scenario by excluding allocations from hard interrupt context."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "lib/debugobjects.c"
                    ],
                    "versions": [
                        {
                            "version": "13abb2b11ac3b6cb89822f152e770081893e4bc3",
                            "lessThan": "3cc90ea0dd0fb1f8db577dcdc027fc46c06049f6",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "0d2a64411b0974a469ff56e62441055147e5a194",
                            "lessThan": "5d95f6b267f3d7fe54f42a3b224bb4a3d3990b41",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c93859a52b0d6953cdaa17fd7fb46a6871b015cf",
                            "lessThan": "27335c50014102e9077b784ebd314954286afcab",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "a460935022f512e167b4c5d4c12d85f89ba6aabd",
                            "lessThan": "44b8b03a9fb5c575548fc72c674653d6baba142a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06e0ae988f6e3499785c407429953ade19c1096b",
                            "lessThan": "7bc71bdb1c1526c7f02a6adab324394ff1327b0a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "06e0ae988f6e3499785c407429953ade19c1096b",
                            "lessThan": "0d046ae106255cba5eb83b23f78ee93f3620247d",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "lib/debugobjects.c"
                    ],
                    "versions": [
                        {
                            "version": "6.19",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.19",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0.13",
                            "lessThanOrEqual": "7.0.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19",
                                    "versionEndExcluding": "7.0.13"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "6.19",
                                    "versionEndExcluding": "7.1"
                                }
                            ]
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/3cc90ea0dd0fb1f8db577dcdc027fc46c06049f6"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5d95f6b267f3d7fe54f42a3b224bb4a3d3990b41"
                },
                {
                    "url": "https://git.kernel.org/stable/c/27335c50014102e9077b784ebd314954286afcab"
                },
                {
                    "url": "https://git.kernel.org/stable/c/44b8b03a9fb5c575548fc72c674653d6baba142a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7bc71bdb1c1526c7f02a6adab324394ff1327b0a"
                },
                {
                    "url": "https://git.kernel.org/stable/c/0d046ae106255cba5eb83b23f78ee93f3620247d"
                }
            ],
            "title": "debugobjects: Don't call fill_pool() in early boot hardirq context",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
    }
}