{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.1",
    "cveMetadata": {
        "cveId": "CVE-2024-40925",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2024-07-12T12:17:45.582Z",
        "datePublished": "2024-07-12T12:25:05.747Z",
        "dateUpdated": "2024-09-11T17:33:03.370Z"
    },
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                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2024-07-15T06:51:34.777Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nblock: fix request.queuelist usage in flush\n\nFriedrich Weber reported a kernel crash problem and bisected to commit\n81ada09cc25e (\"blk-flush: reuse rq queuelist in flush state machine\").\n\nThe root cause is that we use \"list_move_tail(&rq->queuelist, pending)\"\nin the PREFLUSH/POSTFLUSH sequences. But rq->queuelist.next == xxx since\nit's popped out from plug->cached_rq in __blk_mq_alloc_requests_batch().\nWe don't initialize its queuelist just for this first request, although\nthe queuelist of all later popped requests will be initialized.\n\nFix it by changing to use \"list_add_tail(&rq->queuelist, pending)\" so\nrq->queuelist doesn't need to be initialized. It should be ok since rq\ncan't be on any list when PREFLUSH or POSTFLUSH, has no move actually.\n\nPlease note the commit 81ada09cc25e (\"blk-flush: reuse rq queuelist in\nflush state machine\") also has another requirement that no drivers would\ntouch rq->queuelist after blk_mq_end_request() since we will reuse it to\nadd rq to the post-flush pending list in POSTFLUSH. If this is not true,\nwe will have to revert that commit IMHO.\n\nThis updated version adds \"list_del_init(&rq->queuelist)\" in flush rq\ncallback since the dm layer may submit request of a weird invalid format\n(REQ_FSEQ_PREFLUSH | REQ_FSEQ_POSTFLUSH), which causes double list_add\nif without this \"list_del_init(&rq->queuelist)\". The weird invalid format\nproblem should be fixed in dm layer."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "block/blk-flush.c"
                    ],
                    "versions": [
                        {
                            "version": "81ada09cc25e",
                            "lessThan": "fe1e395563cc",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "81ada09cc25e",
                            "lessThan": "87907bd69721",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "81ada09cc25e",
                            "lessThan": "d0321c812d89",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "block/blk-flush.c"
                    ],
                    "versions": [
                        {
                            "version": "6.6",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "6.6",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.6.35",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.9.6",
                            "lessThanOrEqual": "6.9.*",
                            "status": "unaffected",
                            "versionType": "custom"
                        },
                        {
                            "version": "6.10",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/fe1e395563ccb051e9dbd8fa99859f5caaad2e71"
                },
                {
                    "url": "https://git.kernel.org/stable/c/87907bd69721a8506618a954d41a1de3040e88aa"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d0321c812d89c5910d8da8e4b10c891c6b96ff70"
                }
            ],
            "title": "block: fix request.queuelist usage in flush",
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                "engine": "bippy-c9c4e1df01b2"
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        },
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                    "dateUpdated": "2024-08-02T04:39:56.086Z"
                },
                "title": "CVE Program Container",
                "references": [
                    {
                        "url": "https://git.kernel.org/stable/c/fe1e395563ccb051e9dbd8fa99859f5caaad2e71",
                        "tags": [
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                    {
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                "metrics": [
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                            "content": {
                                "id": "CVE-2024-40925",
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                                "options": [
                                    {
                                        "Exploitation": "none"
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                                "version": "2.0.3",
                                "timestamp": "2024-09-10T17:05:17.851843Z"
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