{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-90284",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-09-11T19:38:34.797Z",
        "datePublished": "2026-09-17T16:08:13.993Z",
        "dateUpdated": "2026-10-19T09:01:02.825Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-10-19T09:01:02.825Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware_loader: do not queue completed sysfs fallback requests\n\nfw_load_sysfs_fallback() calls device_add() before adding the fw_priv to\npending_fw_head. device_add() publishes the fallback loading interface, so\na userspace helper which discovers the device by scanning sysfs can write 0\nto the loading attribute and complete the request before it is queued as\npending.\n\nIn that interleaving firmware_loading_store() calls fw_state_done() while\npending_list still points to itself, so it cannot remove an entry from\npending_fw_head. The subsequent unconditional list_add() then queues an\nalready-completed fw_priv. Once the request is released, pending_fw_head\ncan retain a pointer to freed memory and the next fallback request can\nfault while validating the list.\n\nOnly in-flight fallback requests need suspend or reboot abort handling. If\nthe request is already DONE after device_add(), return success from the\nfallback path without sending another uevent, waiting again, or queueing it\nas pending. This preserves the invariant that pending_fw_head contains only\nactive fallback requests."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/base/firmware_loader/fallback.c"
                    ],
                    "versions": [
                        {
                            "version": "ecb739cf15a9bae040ce6b60209b78b92512d120",
                            "lessThan": "c8b97c5130f27b64fa2cfe1aa4bebb13f724c6c7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "75d95e2e39b27f733f21e6668af1c9893a97de5e",
                            "lessThan": "93a2385730540105df8524447dcc11309ad280f9",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "75d95e2e39b27f733f21e6668af1c9893a97de5e",
                            "lessThan": "ea33fac0df7fe7b49a4b27acb83e227b82317d1d",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "75d95e2e39b27f733f21e6668af1c9893a97de5e",
                            "lessThan": "5a250bff75a446374c05622973b18b4ab662b504",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "75d95e2e39b27f733f21e6668af1c9893a97de5e",
                            "lessThan": "85aeb8fc61839098ae0942ccba86e669c08e75d4",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "75d95e2e39b27f733f21e6668af1c9893a97de5e",
                            "lessThan": "6eaa632d0ed7bbb84f9cb670e5ec4e2cecf4cc7b",
                            "status": "affected",
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                        {
                            "version": "75d95e2e39b27f733f21e6668af1c9893a97de5e",
                            "lessThan": "fb4824880b0dba0e7b3a497c46c642f979630392",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "75d95e2e39b27f733f21e6668af1c9893a97de5e",
                            "lessThan": "b48373c901951fad1a26bd7c33ad91172b3945b5",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "67cf0fbcac0d42d4d4686cddc1e39f465bbfec37",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "d09639528b66b5c7c20dc8f7fb8928aacabd40bb",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "c14a54675db7131791402fa22fb0fa6da1f5fb66",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.10.58",
                            "lessThan": "5.10.270",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "4.19.203",
                            "lessThan": "4.20",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.4.140",
                            "lessThan": "5.5",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.13.10",
                            "lessThan": "5.14",
                            "status": "affected",
                            "versionType": "semver"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/base/firmware_loader/fallback.c"
                    ],
                    "versions": [
                        {
                            "version": "5.14",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "5.14",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.270",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.221",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.188",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.157",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.110",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.52",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2.6",
                            "lessThanOrEqual": "7.2.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.3",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
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                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/c8b97c5130f27b64fa2cfe1aa4bebb13f724c6c7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/93a2385730540105df8524447dcc11309ad280f9"
                },
                {
                    "url": "https://git.kernel.org/stable/c/ea33fac0df7fe7b49a4b27acb83e227b82317d1d"
                },
                {
                    "url": "https://git.kernel.org/stable/c/5a250bff75a446374c05622973b18b4ab662b504"
                },
                {
                    "url": "https://git.kernel.org/stable/c/85aeb8fc61839098ae0942ccba86e669c08e75d4"
                },
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                },
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                    "url": "https://git.kernel.org/stable/c/fb4824880b0dba0e7b3a497c46c642f979630392"
                },
                {
                    "url": "https://git.kernel.org/stable/c/b48373c901951fad1a26bd7c33ad91172b3945b5"
                }
            ],
            "title": "firmware_loader: do not queue completed sysfs fallback requests",
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}