{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-64329", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-07-19T15:36:31.780Z", "datePublished": "2026-07-25T08:49:57.098Z", "dateUpdated": "2026-08-17T04:53:31.661Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-17T04:53:31.661Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: ccg: Fix use-after-free of ucsi on remove\n\nThe threaded IRQ handler ccg_irq_handler() calls ucsi_notify_common(),\nwhich on a connector-change event calls ucsi_connector_change() and\nschedules connector work. In ucsi_ccg_remove(), ucsi_destroy() frees\nuc->ucsi (kfree) before free_irq() is called, so a handler invocation\nalready in flight may access the freed object after ucsi_destroy().\n\n CPU 0 (remove) | CPU 1 (threaded IRQ)\n ucsi_destroy(uc->ucsi) | ccg_irq_handler()\n kfree(ucsi) // FREE | ucsi_notify_common(uc->ucsi) // USE\n\nMove free_irq() before ucsi_destroy() in the remove path. It is kept\nafter ucsi_unregister(): ucsi_unregister() cancels connector work whose\nhandler issues GET_CONNECTOR_STATUS through ucsi_send_command_common(),\nwhich waits for a completion that is signalled from the IRQ handler, so\nthe IRQ must stay active until that work has been cancelled.\n\nThe probe error path already orders free_irq() before ucsi_destroy().\n\nThis bug was found by static analysis."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/typec/ucsi/ucsi_ccg.c"], "versions": [{"version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "lessThan": "f1adeb1ff8bef1467d6961059810795d02bbad5d", "status": "affected", "versionType": "git"}, {"version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "lessThan": "99381e762273a2410a3f0216000be32b013c0ea9", "status": "affected", "versionType": "git"}, {"version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "lessThan": "1a160076d3d0dcd4a98a4599ad96eec0790b099b", "status": "affected", "versionType": "git"}, {"version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "lessThan": "c32df11147822d22facee8fa30c2e8971d12f426", "status": "affected", "versionType": "git"}, {"version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "lessThan": "86c9ee928c4a370e323e432aaf8dca79c4ba7c85", "status": "affected", "versionType": "git"}, {"version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "lessThan": "f5c772b76bbd95de8be51cf849c6098f6af6fcf9", "status": "affected", "versionType": "git"}, {"version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "lessThan": "dbb500bad02146b388041877574829016591ddc8", "status": "affected", "versionType": "git"}, {"version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "lessThan": "1f0bdc2884b67de337215079bba166df0cdf4ac5", "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/usb/typec/ucsi/ucsi_ccg.c"], "versions": [{"version": "5.5", "status": "affected"}, {"version": "0", "lessThan": "5.5", "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": "6.12.96", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.39", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.4", "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": "5.5", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.12.96"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "6.18.39"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.1.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.5", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f1adeb1ff8bef1467d6961059810795d02bbad5d"}, {"url": "https://git.kernel.org/stable/c/99381e762273a2410a3f0216000be32b013c0ea9"}, {"url": "https://git.kernel.org/stable/c/1a160076d3d0dcd4a98a4599ad96eec0790b099b"}, {"url": "https://git.kernel.org/stable/c/c32df11147822d22facee8fa30c2e8971d12f426"}, {"url": "https://git.kernel.org/stable/c/86c9ee928c4a370e323e432aaf8dca79c4ba7c85"}, {"url": "https://git.kernel.org/stable/c/f5c772b76bbd95de8be51cf849c6098f6af6fcf9"}, {"url": "https://git.kernel.org/stable/c/dbb500bad02146b388041877574829016591ddc8"}, {"url": "https://git.kernel.org/stable/c/1f0bdc2884b67de337215079bba166df0cdf4ac5"}], "title": "usb: typec: ucsi: ccg: Fix use-after-free of ucsi on remove", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/usb/typec/ucsi/ucsi_ccg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "f1adeb1ff8bef1467d6961059810795d02bbad5d", "status": "affected", "version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "versionType": "git"}, {"lessThan": "99381e762273a2410a3f0216000be32b013c0ea9", "status": "affected", "version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "versionType": "git"}, {"lessThan": "1a160076d3d0dcd4a98a4599ad96eec0790b099b", "status": "affected", "version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "versionType": "git"}, {"lessThan": "c32df11147822d22facee8fa30c2e8971d12f426", "status": "affected", "version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "versionType": "git"}, {"lessThan": "86c9ee928c4a370e323e432aaf8dca79c4ba7c85", "status": "affected", "version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "versionType": "git"}, {"lessThan": "f5c772b76bbd95de8be51cf849c6098f6af6fcf9", "status": "affected", "version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "versionType": "git"}, {"lessThan": "dbb500bad02146b388041877574829016591ddc8", "status": "affected", "version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "versionType": "git"}, {"lessThan": "1f0bdc2884b67de337215079bba166df0cdf4ac5", "status": "affected", "version": "e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/usb/typec/ucsi/ucsi_ccg.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.5"}, {"lessThan": "5.5", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.261", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.96", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.39", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.4", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: typec: ucsi: ccg: Fix use-after-free of ucsi on remove\n\nThe threaded IRQ handler ccg_irq_handler() calls ucsi_notify_common(),\nwhich on a connector-change event calls ucsi_connector_change() and\nschedules connector work. In ucsi_ccg_remove(), ucsi_destroy() frees\nuc->ucsi (kfree) before free_irq() is called, so a handler invocation\nalready in flight may access the freed object after ucsi_destroy().\n\n CPU 0 (remove) | CPU 1 (threaded IRQ)\n ucsi_destroy(uc->ucsi) | ccg_irq_handler()\n kfree(ucsi) // FREE | ucsi_notify_common(uc->ucsi) // USE\n\nMove free_irq() before ucsi_destroy() in the remove path. It is kept\nafter ucsi_unregister(): ucsi_unregister() cancels connector work whose\nhandler issues GET_CONNECTOR_STATUS through ucsi_send_command_common(),\nwhich waits for a completion that is signalled from the IRQ handler, so\nthe IRQ must stay active until that work has been cancelled.\n\nThe probe error path already orders free_irq() before ucsi_destroy().\n\nThis bug was found by static analysis."}], "id": "CVE-2026-64329", "lastModified": "2026-08-17T05:17:33.973", "metrics": {}, "published": "2026-07-25T10:17:14.540", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1a160076d3d0dcd4a98a4599ad96eec0790b099b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1f0bdc2884b67de337215079bba166df0cdf4ac5"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/86c9ee928c4a370e323e432aaf8dca79c4ba7c85"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/99381e762273a2410a3f0216000be32b013c0ea9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/c32df11147822d22facee8fa30c2e8971d12f426"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dbb500bad02146b388041877574829016591ddc8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f1adeb1ff8bef1467d6961059810795d02bbad5d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f5c772b76bbd95de8be51cf849c6098f6af6fcf9"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: usb: typec: ucsi: ccg: Fix use-after-free of ucsi on remove", "id": "2507083", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2507083"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["A flaw was found in the Linux kernel's USB Type-C UCSI CCG driver. A use-after-free vulnerability occurs during the removal of a USB Type-C device. Specifically, the system attempts to free a memory object before ensuring that all related interrupt handling routines have completed. This timing issue could allow an attacker to potentially access freed memory, leading to system instability or a denial of service."], "name": "CVE-2026-64329", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-07-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-64329\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-64329\nhttps://lore.kernel.org/linux-cve-announce/2026072513-CVE-2026-64329-017c@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2,f1adeb1ff8bef1467d6961059810795d02bbad5d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2,99381e762273a2410a3f0216000be32b013c0ea9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2,1a160076d3d0dcd4a98a4599ad96eec0790b099b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2,c32df11147822d22facee8fa30c2e8971d12f426)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2,86c9ee928c4a370e323e432aaf8dca79c4ba7c85)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2,f5c772b76bbd95de8be51cf849c6098f6af6fcf9)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2,dbb500bad02146b388041877574829016591ddc8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[e32fd989ac1c45f993fbe89ad0a89aa9ea6993d2,1f0bdc2884b67de337215079bba166df0cdf4ac5)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "5.5"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,5.5)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.10.261,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[5.15.212,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.1.178,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.6.145,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.12.96,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[6.18.39,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1.4,*]"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc3,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-07-25T13:15:03.772710+00:00", "updated": "2026-08-04T14:45:03.308381+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}