{
    "dataType": "CVE_RECORD",
    "dataVersion": "5.2",
    "cveMetadata": {
        "cveId": "CVE-2026-31756",
        "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
        "state": "PUBLISHED",
        "assignerShortName": "Linux",
        "dateReserved": "2026-03-09T15:48:24.139Z",
        "datePublished": "2026-05-01T14:14:47.000Z",
        "dateUpdated": "2026-05-23T16:05:53.039Z"
    },
    "containers": {
        "cna": {
            "providerMetadata": {
                "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
                "shortName": "Linux",
                "dateUpdated": "2026-05-23T16:05:53.039Z"
            },
            "descriptions": [
                {
                    "lang": "en",
                    "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: dwc2: gadget: Fix spin_lock/unlock mismatch in dwc2_hsotg_udc_stop()\n\ndwc2_gadget_exit_clock_gating() internally calls call_gadget() macro,\nwhich expects hsotg->lock to be held since it does spin_unlock/spin_lock\naround the gadget driver callback invocation.\n\nHowever, dwc2_hsotg_udc_stop() calls dwc2_gadget_exit_clock_gating()\nwithout holding the lock. This leads to:\n - spin_unlock on a lock that is not held (undefined behavior)\n - The lock remaining held after dwc2_gadget_exit_clock_gating() returns,\n   causing a deadlock when spin_lock_irqsave() is called later in the\n   same function.\n\nFix this by acquiring hsotg->lock before calling\ndwc2_gadget_exit_clock_gating() and releasing it afterwards, which\nsatisfies the locking requirement of the call_gadget() macro."
                }
            ],
            "affected": [
                {
                    "product": "Linux",
                    "vendor": "Linux",
                    "defaultStatus": "unaffected",
                    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
                    "programFiles": [
                        "drivers/usb/dwc2/gadget.c"
                    ],
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                            "lessThan": "e9fcca3e87463013d595c65c2189ffaa32ad3b50",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "1ac826cebc2776f91569f2aa9c9c3da2375d2096",
                            "lessThan": "8ffe31acb3b77a30ae34d01719a269881569fb7f",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "41732f9febdccb4f9b87c13cb915d717d68ccafd",
                            "lessThan": "beab10429439e20708036a66fb0d97ffb79da6a1",
                            "status": "affected",
                            "versionType": "git"
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                        {
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                            "lessThan": "51b62286fc668c6eb74dee7624ec0beec3c5a0ed",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "af076a41f8a28faf9ceb9dd2d88aef2c202ef39a",
                            "lessThan": "9bb4b5ed7f8c4f95cc556bdf042b0ba2fa13557a",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "b39c203690fa1678daecc60f347e43c8b593b969",
                            "status": "affected",
                            "versionType": "git"
                        },
                        {
                            "version": "5.15.187",
                            "lessThan": "5.15.203",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.143",
                            "lessThan": "6.1.168",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.96",
                            "lessThan": "6.6.134",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.36",
                            "lessThan": "6.12.81",
                            "status": "affected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.15.5",
                            "lessThan": "6.16",
                            "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/usb/dwc2/gadget.c"
                    ],
                    "versions": [
                        {
                            "version": "6.16",
                            "status": "affected"
                        },
                        {
                            "version": "0",
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                            "status": "unaffected",
                            "versionType": "semver"
                        },
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                            "lessThanOrEqual": "5.15.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.1.168",
                            "lessThanOrEqual": "6.1.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.6.134",
                            "lessThanOrEqual": "6.6.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.12.81",
                            "lessThanOrEqual": "6.12.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.18.22",
                            "lessThanOrEqual": "6.18.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "6.19.12",
                            "lessThanOrEqual": "6.19.*",
                            "status": "unaffected",
                            "versionType": "semver"
                        },
                        {
                            "version": "7.0",
                            "lessThanOrEqual": "*",
                            "status": "unaffected",
                            "versionType": "original_commit_for_fix"
                        }
                    ]
                }
            ],
            "cpeApplicability": [
                {
                    "nodes": [
                        {
                            "operator": "OR",
                            "negate": false,
                            "cpeMatch": [
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                                    "vulnerable": true,
                                    "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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                                    "versionEndExcluding": "5.15.203"
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            "references": [
                {
                    "url": "https://git.kernel.org/stable/c/e9fcca3e87463013d595c65c2189ffaa32ad3b50"
                },
                {
                    "url": "https://git.kernel.org/stable/c/8ffe31acb3b77a30ae34d01719a269881569fb7f"
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                },
                {
                    "url": "https://git.kernel.org/stable/c/9bb4b5ed7f8c4f95cc556bdf042b0ba2fa13557a"
                }
            ],
            "title": "usb: dwc2: gadget: Fix spin_lock/unlock mismatch in dwc2_hsotg_udc_stop()",
            "x_generator": {
                "engine": "bippy-1.2.0"
            }
        }
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}