{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-44981",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-08-21T05:34:56.670Z",
        "datePublished": "2024-09-04T19:54:31.505Z",
        "dateUpdated": "2024-09-15T17:56:24.151Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-09-15T17:56:24.151Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nworkqueue: Fix UBSAN 'subtraction overflow' error in shift_and_mask()\n\nUBSAN reports the following 'subtraction overflow' error when booting\nin a virtual machine on Android:\n\n | Internal error: UBSAN: integer subtraction overflow: 00000000f2005515 [#1] PREEMPT SMP\n | Modules linked in:\n | CPU: 0 PID: 1 Comm: swapper/0 Not tainted 6.10.0-00006-g3cbe9e5abd46-dirty #4\n | Hardware name: linux,dummy-virt (DT)\n | pstate: 600000c5 (nZCv daIF -PAN -UAO -TCO -DIT -SSBS BTYPE=--)\n | pc : cancel_delayed_work+0x34/0x44\n | lr : cancel_delayed_work+0x2c/0x44\n | sp : ffff80008002ba60\n | x29: ffff80008002ba60 x28: 0000000000000000 x27: 0000000000000000\n | x26: 0000000000000000 x25: 0000000000000000 x24: 0000000000000000\n | x23: 0000000000000000 x22: 0000000000000000 x21: ffff1f65014cd3c0\n | x20: ffffc0e84c9d0da0 x19: ffffc0e84cab3558 x18: ffff800080009058\n | x17: 00000000247ee1f8 x16: 00000000247ee1f8 x15: 00000000bdcb279d\n | x14: 0000000000000001 x13: 0000000000000075 x12: 00000a0000000000\n | x11: ffff1f6501499018 x10: 00984901651fffff x9 : ffff5e7cc35af000\n | x8 : 0000000000000001 x7 : 3d4d455453595342 x6 : 000000004e514553\n | x5 : ffff1f6501499265 x4 : ffff1f650ff60b10 x3 : 0000000000000620\n | x2 : ffff80008002ba78 x1 : 0000000000000000 x0 : 0000000000000000\n | Call trace:\n |  cancel_delayed_work+0x34/0x44\n |  deferred_probe_extend_timeout+0x20/0x70\n |  driver_register+0xa8/0x110\n |  __platform_driver_register+0x28/0x3c\n |  syscon_init+0x24/0x38\n |  do_one_initcall+0xe4/0x338\n |  do_initcall_level+0xac/0x178\n |  do_initcalls+0x5c/0xa0\n |  do_basic_setup+0x20/0x30\n |  kernel_init_freeable+0x8c/0xf8\n |  kernel_init+0x28/0x1b4\n |  ret_from_fork+0x10/0x20\n | Code: f9000fbf 97fffa2f 39400268 37100048 (d42aa2a0)\n | ---[ end trace 0000000000000000 ]---\n | Kernel panic - not syncing: UBSAN: integer subtraction overflow: Fatal exception\n\nThis is due to shift_and_mask() using a signed immediate to construct\nthe mask and being called with a shift of 31 (WORK_OFFQ_POOL_SHIFT) so\nthat it ends up decrementing from INT_MIN.\n\nUse an unsigned constant '1U' to generate the mask in shift_and_mask()."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/workqueue.c"
                    ],
                    "versions": [
                        {
                            "version": "1211f3b21c2a",
                            "lessThan": "90a6a844b2d9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1211f3b21c2a",
                            "lessThan": "38f7e14519d3",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "kernel/workqueue.c"
                    ],
                    "versions": [
                        {
                            "version": "6.10",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.10",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.10.7",
                            "lessThanOrEqual": "6.10.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.11",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/90a6a844b2d9927d192758438a4ada33d8cd9de5"
                },
                {
                    "url": "https://git.kernel.org/stable/c/38f7e14519d39cf524ddc02d4caee9b337dad703"
                }
            ],
            "title": "workqueue: Fix UBSAN 'subtraction overflow' error in shift_and_mask()",
            "x_generator": {
                "engine": "bippy-c9c4e1df01b2"
            }
        },
        "adp": [
            {
                "metrics": [
                    {
                        "other": {
                            "type": "ssvc",
                            "content": {
                                "id": "CVE-2024-44981",
                                "role": "CISA Coordinator",
                                "options": [
                                    {
                                        "Exploitation": "none"
                                    },
                                    {
                                        "Automatable": "no"
                                    },
                                    {
                                        "Technical Impact": "partial"
                                    }
                                ],
                                "version": "2.0.3",
                                "timestamp": "2024-09-10T15:18:14.996929Z"
                            }
                        }
                    }
                ],
                "title": "CISA ADP Vulnrichment",
                "providerMetadata": {
                    "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
                    "shortName": "CISA-ADP",
                    "dateUpdated": "2024-09-12T17:33:17.087Z"
                }
            }
        ]
    }
}