CVE-2026-68365

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Since the FIFO is allocated with maxTxCredits bytes,\ntxCredits exceeding maxTxCredits can cause OOB write in ring buffer.\n\nCap accumulated credits at maxTxCredits. Conforming devices should never\nhit the cap."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/usb/serial/io_edgeport.c"], "versions": [{"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "d9dd87bc1d7e8476d29d68883542ec6198d385c6", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "5b39d3da15344b87ef54a0a04f65b52622747e99", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "63c4e55d0741cfaf00515e807cad9293445cd348", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "ee57992c053a6d395e98ced2d4c9cc3b42d8c27a", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "64b687f9694777754285d489abbefa3784bc78da", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "cbe00048b69d67c8a78293cb7681b4c9963b26c7", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "1e47d8228b8767c8ac722aedb388f70adeeda43d", "status": "affected", "versionType": "git"}, {"version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "lessThan": "faaddd811c5099f11a5f52e68a6b31a5898cda4f", "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/serial/io_edgeport.c"], "versions": [{"version": "2.6.12", "status": "affected"}, {"version": "0", "lessThan": "2.6.12", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.265", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": 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"versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/d9dd87bc1d7e8476d29d68883542ec6198d385c6"}, {"url": "https://git.kernel.org/stable/c/5b39d3da15344b87ef54a0a04f65b52622747e99"}, {"url": "https://git.kernel.org/stable/c/63c4e55d0741cfaf00515e807cad9293445cd348"}, {"url": "https://git.kernel.org/stable/c/ee57992c053a6d395e98ced2d4c9cc3b42d8c27a"}, {"url": "https://git.kernel.org/stable/c/64b687f9694777754285d489abbefa3784bc78da"}, {"url": "https://git.kernel.org/stable/c/cbe00048b69d67c8a78293cb7681b4c9963b26c7"}, {"url": "https://git.kernel.org/stable/c/1e47d8228b8767c8ac722aedb388f70adeeda43d"}, {"url": "https://git.kernel.org/stable/c/faaddd811c5099f11a5f52e68a6b31a5898cda4f"}], "title": "USB: serial: io_edgeport: cap received transmit credits", "x_generator": {"engine": "bippy-1.2.0"}}, "adp": [{"metrics": [{"other": {"type": "ssvc", "content": {"id": "CVE-2026-68365", "role": "CISA Coordinator", "options": [{"Exploitation": "none"}, {"Automatable": "no"}, {"Technical Impact": "partial"}], "version": "2.0.3", "timestamp": "2026-11-06T16:48:12.644775Z"}}}], "title": "CISA ADP Vulnrichment", "providerMetadata": {"orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-11-06T16:55:14.547Z"}}]}}

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Since the FIFO is allocated with maxTxCredits bytes,\ntxCredits exceeding maxTxCredits can cause OOB write in ring buffer.\n\nCap accumulated credits at maxTxCredits. Conforming devices should never\nhit the cap."}], "cpeApplicability": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.10.265", "versionStartIncluding": "2.6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "5.15.216", "versionStartIncluding": "2.6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.1.183", "versionStartIncluding": "2.6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.6.148", "versionStartIncluding": "2.6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.12.101", "versionStartIncluding": "2.6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "6.18.42", "versionStartIncluding": "2.6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.1.6", "versionStartIncluding": "2.6.12"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "versionEndExcluding": "7.2", "versionStartIncluding": "2.6.12"}], "operator": "OR"}]}], "providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-19T16:34:21.018Z"}}}, "cveMetadata": {"cveId": "CVE-2026-68365", "state": "PUBLISHED", "dateUpdated": "2026-11-06T16:55:14.547Z", "dateReserved": "2026-07-30T09:28:09.385Z", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "datePublished": "2026-08-10T12:03:42.358Z", "assignerShortName": "Linux"}, "dataVersion": "5.2"}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/usb/serial/io_edgeport.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "d9dd87bc1d7e8476d29d68883542ec6198d385c6", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "5b39d3da15344b87ef54a0a04f65b52622747e99", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "63c4e55d0741cfaf00515e807cad9293445cd348", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "ee57992c053a6d395e98ced2d4c9cc3b42d8c27a", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "64b687f9694777754285d489abbefa3784bc78da", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "cbe00048b69d67c8a78293cb7681b4c9963b26c7", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "1e47d8228b8767c8ac722aedb388f70adeeda43d", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}, {"lessThan": "faaddd811c5099f11a5f52e68a6b31a5898cda4f", "status": "affected", "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/usb/serial/io_edgeport.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "2.6.12"}, {"lessThan": "2.6.12", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.265", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.216", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.183", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.42", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.6", "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: serial: io_edgeport: cap received transmit credits\n\nThe interrupt-status packet reports transmit credits returned by the\ndevice. edge_interrupt_callback() adds the 16-bit value to txCredits\nwithout checking maxTxCredits.\n\nedge_write() uses txCredits minus the software FIFO count as the amount\nof data that fits. Since the FIFO is allocated with maxTxCredits bytes,\ntxCredits exceeding maxTxCredits can cause OOB write in ring buffer.\n\nCap accumulated credits at maxTxCredits. Conforming devices should never\nhit the cap."}], "id": "CVE-2026-68365", "lastModified": "2026-11-06T17:19:30.680", "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-68365", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-11-06T16:48:12.644775Z", "version": "2.0.3"}}]}, "published": "2026-08-10T13:20:29.117", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/1e47d8228b8767c8ac722aedb388f70adeeda43d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5b39d3da15344b87ef54a0a04f65b52622747e99"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/63c4e55d0741cfaf00515e807cad9293445cd348"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/64b687f9694777754285d489abbefa3784bc78da"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/cbe00048b69d67c8a78293cb7681b4c9963b26c7"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d9dd87bc1d7e8476d29d68883542ec6198d385c6"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ee57992c053a6d395e98ced2d4c9cc3b42d8c27a"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/faaddd811c5099f11a5f52e68a6b31a5898cda4f"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Linux kernel: Out-of-bounds write in `io_edgeport` USB serial driver", "id": "2513241", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2513241"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:P/AC:H/PR:L/UI:R/S:U/C:N/I:H/A:H", "status": "draft"}, "cwe": "CWE-787", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nUSB: serial: io_edgeport: cap received transmit credits\nThe interrupt-status packet reports transmit credits returned by the\ndevice. edge_interrupt_callback() adds the 16-bit value to txCredits\nwithout checking maxTxCredits.\nedge_write() uses txCredits minus the software FIFO count as the amount\nof data that fits. Since the FIFO is allocated with maxTxCredits bytes,\ntxCredits exceeding maxTxCredits can cause OOB write in ring buffer.\nCap accumulated credits at maxTxCredits. Conforming devices should never\nhit the cap.", "A flaw was found in the Linux kernel's `io_edgeport` USB serial driver. The driver fails to properly cap the transmit credits received from a connected USB device. This can lead to the `txCredits` value exceeding the allocated buffer size. A malicious USB device could leverage this vulnerability to trigger an out-of-bounds write in the ring buffer, potentially resulting in a denial of service or other memory corruption."], "name": "CVE-2026-68365", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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"}, {"cpe": "cpe:/a:redhat:enterprise_linux_nvidia:", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux for NVIDIA 26"}, {"cpe": "cpe:/a:redhat:openshift:4", "fix_state": "Fix deferred", "package_name": "rhcos", "product_name": "Red Hat OpenShift Container Platform 4"}], "public_date": "2026-08-10T12:03:42Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-68365\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-68365\nhttps://git.kernel.org/stable/c/1e47d8228b8767c8ac722aedb388f70adeeda43d\nhttps://git.kernel.org/stable/c/64b687f9694777754285d489abbefa3784bc78da\nhttps://git.kernel.org/stable/c/cbe00048b69d67c8a78293cb7681b4c9963b26c7\nhttps://git.kernel.org/stable/c/ee57992c053a6d395e98ced2d4c9cc3b42d8c27a\nhttps://git.kernel.org/stable/c/faaddd811c5099f11a5f52e68a6b31a5898cda4f"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,ee57992c053a6d395e98ced2d4c9cc3b42d8c27a)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,64b687f9694777754285d489abbefa3784bc78da)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,cbe00048b69d67c8a78293cb7681b4c9963b26c7)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,1e47d8228b8767c8ac722aedb388f70adeeda43d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[1da177e4c3f41524e886b7f1b8a0c1fc7321cac2,faaddd811c5099f11a5f52e68a6b31a5898cda4f)"}}], "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": "semver", "value": "2.6.12"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.12)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.42,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.6,8.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2-rc5,*]"}}], "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": "2026-08-10T16:45:03.476222+00:00", "updated": "2026-08-13T07:00:12.934480+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}