CVE-2026-31756

{"id": "CVE-2026-31756", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "5cb3cb3db317c58d50b68f3ca3bb8343ea9d1acd", "lessThan": "e9fcca3e87463013d595c65c2189ffaa32ad3b50", "versionType": "git"}, {"status": "affected", "version": "1ac826cebc2776f91569f2aa9c9c3da2375d2096", "lessThan": "8ffe31acb3b77a30ae34d01719a269881569fb7f", "versionType": "git"}, {"status": "affected", "version": "41732f9febdccb4f9b87c13cb915d717d68ccafd", "lessThan": "beab10429439e20708036a66fb0d97ffb79da6a1", "versionType": "git"}, {"status": "affected", "version": "ba78c2b3254c4a458c01776612e8a573e12f8d26", "lessThan": "4ed9d2dd9f29828c311db6ec4b8e0d34bfd6d6a4", "versionType": "git"}, {"status": "affected", "version": "af076a41f8a28faf9ceb9dd2d88aef2c202ef39a", "lessThan": "61937f686290494998236c680ce0836b8dd63a3f", "versionType": "git"}, {"status": "affected", "version": "af076a41f8a28faf9ceb9dd2d88aef2c202ef39a", "lessThan": "51b62286fc668c6eb74dee7624ec0beec3c5a0ed", "versionType": "git"}, {"status": "affected", "version": "af076a41f8a28faf9ceb9dd2d88aef2c202ef39a", "lessThan": "9bb4b5ed7f8c4f95cc556bdf042b0ba2fa13557a", "versionType": "git"}, {"status": "affected", "version": "b39c203690fa1678daecc60f347e43c8b593b969", "versionType": "git"}, {"status": "affected", "version": "5.15.187", "lessThan": "5.15.203", "versionType": "semver"}, {"status": "affected", "version": "6.1.143", "lessThan": "6.1.168", "versionType": "semver"}, {"status": "affected", "version": "6.6.96", "lessThan": "6.6.134", "versionType": "semver"}, {"status": "affected", "version": "6.12.36", "lessThan": "6.12.81", "versionType": "semver"}, {"status": "affected", "version": "6.15.5", "lessThan": "6.16", "versionType": "semver"}], "programFiles": ["drivers/usb/dwc2/gadget.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.16"}, {"status": "unaffected", "version": "0", "lessThan": "6.16", "versionType": "semver"}, {"status": "unaffected", "version": "5.15.203", "versionType": "semver", "lessThanOrEqual": "5.15.*"}, {"status": "unaffected", "version": "6.1.168", "versionType": "semver", "lessThanOrEqual": "6.1.*"}, {"status": "unaffected", "version": "6.6.134", "versionType": "semver", "lessThanOrEqual": "6.6.*"}, {"status": "unaffected", "version": "6.12.81", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.22", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "6.19.12", "versionType": "semver", "lessThanOrEqual": "6.19.*"}, {"status": "unaffected", "version": "7.0", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["drivers/usb/dwc2/gadget.c"], "defaultStatus": "affected"}]}], "published": "2026-05-01T15:16:38.580", "references": [{"url": "https://git.kernel.org/stable/c/4ed9d2dd9f29828c311db6ec4b8e0d34bfd6d6a4", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/51b62286fc668c6eb74dee7624ec0beec3c5a0ed", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/61937f686290494998236c680ce0836b8dd63a3f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/8ffe31acb3b77a30ae34d01719a269881569fb7f", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/9bb4b5ed7f8c4f95cc556bdf042b0ba2fa13557a", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/beab10429439e20708036a66fb0d97ffb79da6a1", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/e9fcca3e87463013d595c65c2189ffaa32ad3b50", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-667"}]}], "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."}], "lastModified": "2026-06-17T10:34:24.320", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "47F2AD8D-1BF2-49F3-AB68-24C4630BAFD0", "versionEndExcluding": "5.15.203", "versionStartIncluding": "5.15.187"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7E908ADC-45DA-494F-9E71-A310F56EDCAF", "versionEndExcluding": "6.1.168", "versionStartIncluding": "6.1.143"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E220ECC5-ECBC-4EFF-B943-1DEACE981592", "versionEndExcluding": "6.6.134", "versionStartIncluding": "6.6.96"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0FFEF924-DF26-4B6A-B663-70084F25414E", "versionEndExcluding": "6.12.81", "versionStartIncluding": "6.12.36"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8F8BB240-724D-4162-8196-2D2F2C5C8724", "versionEndExcluding": "6.18.22", "versionStartIncluding": "6.15.5"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "0A2B9540-02D5-41B4-B16A-82AF66FD4F36", "versionEndExcluding": "6.19.12", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc1:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F253B622-8837-4245-BCE5-A7BF8FC76A16"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc2:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "4AE85AD8-4641-4E7C-A2F4-305E2CD9EE64"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc3:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "F666C8D8-6538-46D4-B318-87610DE64C34"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "02259FDA-961B-47BC-AE7F-93D7EC6E90C2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "58A9FEFF-C040-420D-8F0A-BFDAAA1DF258"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "1D2315C0-D46F-4F85-9754-F9E5E11374A6"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:7.0:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "512EE3A8-A590-4501-9A94-5D4B268D6138"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}