{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-74331",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-08-15T05:44:03.885Z",
        "datePublished": "2026-08-15T05:58:24.420Z",
        "dateUpdated": "2026-08-17T05:17:22.413Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-08-17T05:17:22.413Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nfirmware_loader: Fix recursive lock in device_cache_fw_images()\n\nA recursive locking deadlock can occur in the firmware loader's power\nmanagement notification handler.\n\nDuring system suspend or hibernation preparation, fw_pm_notify() calls\ndevice_cache_fw_images(). This function acquires fw_lock to set the\nfirmware cache state to FW_LOADER_START_CACHE and then iterates over all\ndevices using dpm_for_each_dev() while still holding the lock.\n\nFor each device, dev_cache_fw_image() schedules asynchronous work to cache\nthe firmware. If memory allocation for the async work entry fails (e.g., in\nout-of-memory conditions), async_schedule_node_domain() falls back to\nexecuting the work function synchronously in the current thread.\n\nThe synchronous execution path (__async_dev_cache_fw_image() ->\ncache_firmware() -> request_firmware() -> assign_fw()) attempts to acquire\nfw_lock again. Since the current thread already holds fw_lock, this results\nin a recursive locking deadlock.\n\nFix this by releasing fw_lock immediately after updating the cache state\nand before calling dpm_for_each_dev(). The lock is only needed to protect\nthe state update. Concurrent firmware requests will correctly see the\nFW_LOADER_START_CACHE state and use the piggyback mechanism, which is\nindependently protected by its own fwc->name_lock."
                }
            ],
            "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/main.c"
                    ],
                    "versions": [
                        {
                            "version": "ac39b3ea73aacde876d1d5ee1ca3e2719f771482",
                            "lessThan": "806cb8fabfde7f830da5ae87777d52fdf50c4774",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ac39b3ea73aacde876d1d5ee1ca3e2719f771482",
                            "lessThan": "7865a1bfd20d10c03b083a5fc392d907ca5099b3",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ac39b3ea73aacde876d1d5ee1ca3e2719f771482",
                            "lessThan": "490b0385e4cfac691f7b18dde821c13e77b4770b",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ac39b3ea73aacde876d1d5ee1ca3e2719f771482",
                            "lessThan": "38149b57427c736c08d9aa4c7b87deacd53e9e63",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ac39b3ea73aacde876d1d5ee1ca3e2719f771482",
                            "lessThan": "a5b2a68a391b05d54552f13548a72a46c65006f7",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ac39b3ea73aacde876d1d5ee1ca3e2719f771482",
                            "lessThan": "f25d6e4ec4c257030592bd671f113cf9584c52f0",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ac39b3ea73aacde876d1d5ee1ca3e2719f771482",
                            "lessThan": "c0f2dedd41fe14dbe076c1672214802fb42cd8c8",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "ac39b3ea73aacde876d1d5ee1ca3e2719f771482",
                            "lessThan": "d3ec78f8f8d48a04a9fac38d47275c34645e5103",
                            "status": "affected",
                            "versionType": "git"
                        }
                    ]
                },
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "affected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/base/firmware_loader/main.c"
                    ],
                    "versions": [
                        {
                            "version": "3.7",
                            "status": "affected"
                        },
                        {
                            "version": "0",
                            "lessThan": "3.7",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.10.261",
                            "lessThanOrEqual": "5.10.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "5.15.212",
                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.178",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.145",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.97",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.40",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.1.5",
                            "lessThanOrEqual": "7.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.2",
                            "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": "3.7",
                                    "versionEndExcluding": "5.10.261"
                                },
                                {
                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
                                    "versionStartIncluding": "3.7",
                                    "versionEndExcluding": "5.15.212"
                                },
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                                    "versionStartIncluding": "3.7",
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                                    "versionStartIncluding": "3.7",
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            ],
            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/806cb8fabfde7f830da5ae87777d52fdf50c4774"
                },
                {
                    "url": "https://git.kernel.org/stable/c/7865a1bfd20d10c03b083a5fc392d907ca5099b3"
                },
                {
                    "url": "https://git.kernel.org/stable/c/490b0385e4cfac691f7b18dde821c13e77b4770b"
                },
                {
                    "url": "https://git.kernel.org/stable/c/38149b57427c736c08d9aa4c7b87deacd53e9e63"
                },
                {
                    "url": "https://git.kernel.org/stable/c/a5b2a68a391b05d54552f13548a72a46c65006f7"
                },
                {
                    "url": "https://git.kernel.org/stable/c/f25d6e4ec4c257030592bd671f113cf9584c52f0"
                },
                {
                    "url": "https://git.kernel.org/stable/c/c0f2dedd41fe14dbe076c1672214802fb42cd8c8"
                },
                {
                    "url": "https://git.kernel.org/stable/c/d3ec78f8f8d48a04a9fac38d47275c34645e5103"
                }
            ],
            "title": "firmware_loader: Fix recursive lock in device_cache_fw_images()",
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}