CVE-2026-80594

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-80594", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-26T14:34:25.770Z", "datePublished": "2026-08-28T06:48:21.426Z", "dateUpdated": "2026-08-28T06:48:21.426Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-28T06:48:21.426Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nInput: ims-pcu - fix potential infinite loop in CDC union descriptor parsing\n\nThe driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc()\nby iterating through the extra descriptor data. However, it does not\nverify that the bLength of each descriptor is at least 2. A malicious\ndevice could provide a descriptor with bLength = 0, leading to an\ninfinite loop in the driver.\n\nAdd a check to ensure bLength is at least 2 before proceeding with\nparsing."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/input/misc/ims-pcu.c"], "versions": [{"version": "628329d52474323938a03826941e166bc7c8eff4", "lessThan": "67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28", "status": "affected", "versionType": "git"}, {"version": "628329d52474323938a03826941e166bc7c8eff4", "lessThan": "6314bd9e2a6b3362998dc85485dd4b0f133a3532", "status": "affected", "versionType": "git"}, {"version": "628329d52474323938a03826941e166bc7c8eff4", "lessThan": "76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32", "status": "affected", "versionType": "git"}, {"version": "628329d52474323938a03826941e166bc7c8eff4", "lessThan": "e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295", "status": "affected", "versionType": "git"}, {"version": "628329d52474323938a03826941e166bc7c8eff4", "lessThan": "b847f2725ef47a26b3d01eca3d54fd811e5a544d", "status": "affected", "versionType": "git"}, {"version": "628329d52474323938a03826941e166bc7c8eff4", "lessThan": "383934c249a9817d242d02d30bfbc8defbf0d533", "status": "affected", "versionType": "git"}, {"version": "628329d52474323938a03826941e166bc7c8eff4", "lessThan": "bbbe31486cf2d12177462e4a814244c2597c9849", "status": "affected", "versionType": "git"}, {"version": "628329d52474323938a03826941e166bc7c8eff4", "lessThan": "d4579af29e67ca8722db0a1194227f8015c8981d", "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/input/misc/ims-pcu.c"], "versions": [{"version": "3.10", "status": "affected"}, {"version": "0", "lessThan": "3.10", "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": "3.10", "versionEndExcluding": "5.10.261"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28"}, {"url": "https://git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532"}, {"url": "https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32"}, {"url": "https://git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295"}, {"url": "https://git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d"}, {"url": "https://git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533"}, {"url": "https://git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849"}, {"url": "https://git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d"}], "title": "Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/input/misc/ims-pcu.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28", "status": "affected", "version": "628329d52474323938a03826941e166bc7c8eff4", "versionType": "git"}, {"lessThan": "6314bd9e2a6b3362998dc85485dd4b0f133a3532", "status": "affected", "version": "628329d52474323938a03826941e166bc7c8eff4", "versionType": "git"}, {"lessThan": "76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32", "status": "affected", "version": "628329d52474323938a03826941e166bc7c8eff4", "versionType": "git"}, {"lessThan": "e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295", "status": "affected", "version": "628329d52474323938a03826941e166bc7c8eff4", "versionType": "git"}, {"lessThan": "b847f2725ef47a26b3d01eca3d54fd811e5a544d", "status": "affected", "version": "628329d52474323938a03826941e166bc7c8eff4", "versionType": "git"}, {"lessThan": "383934c249a9817d242d02d30bfbc8defbf0d533", "status": "affected", "version": "628329d52474323938a03826941e166bc7c8eff4", "versionType": "git"}, {"lessThan": "bbbe31486cf2d12177462e4a814244c2597c9849", "status": "affected", "version": "628329d52474323938a03826941e166bc7c8eff4", "versionType": "git"}, {"lessThan": "d4579af29e67ca8722db0a1194227f8015c8981d", "status": "affected", "version": "628329d52474323938a03826941e166bc7c8eff4", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/input/misc/ims-pcu.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "3.10"}, {"lessThan": "3.10", "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": "6.12.97", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "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\nInput: ims-pcu - fix potential infinite loop in CDC union descriptor parsing\n\nThe driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc()\nby iterating through the extra descriptor data. However, it does not\nverify that the bLength of each descriptor is at least 2. A malicious\ndevice could provide a descriptor with bLength = 0, leading to an\ninfinite loop in the driver.\n\nAdd a check to ensure bLength is at least 2 before proceeding with\nparsing."}], "id": "CVE-2026-80594", "lastModified": "2026-08-28T08:16:43.060", "metrics": {}, "published": "2026-08-28T08:16:43.060", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/383934c249a9817d242d02d30bfbc8defbf0d533"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/6314bd9e2a6b3362998dc85485dd4b0f133a3532"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/b847f2725ef47a26b3d01eca3d54fd811e5a544d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/bbbe31486cf2d12177462e4a814244c2597c9849"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d4579af29e67ca8722db0a1194227f8015c8981d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: Input: ims-pcu - fix potential infinite loop in CDC union descriptor parsing", "id": "2525389", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2525389"}, "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"}, "cwe": "CWE-606", "details": ["In the Linux kernel, the following vulnerability has been resolved:\nInput: ims-pcu - fix potential infinite loop in CDC union descriptor parsing\nThe driver parses CDC union descriptors in ims_pcu_get_cdc_union_desc()\nby iterating through the extra descriptor data. However, it does not\nverify that the bLength of each descriptor is at least 2. A malicious\ndevice could provide a descriptor with bLength = 0, leading to an\ninfinite loop in the driver.\nAdd a check to ensure bLength is at least 2 before proceeding with\nparsing.", "A flaw was found in the Linux kernel's ims-pcu driver. This vulnerability allows a malicious device to trigger an infinite loop by providing a specially crafted descriptor with a zero-length field during the parsing of CDC union descriptors. This can lead to a Denial of Service (DoS) condition, making the system unresponsive."], "name": "CVE-2026-80594", "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": "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}], "public_date": "2026-08-28T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-80594\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-80594\nhttps://lore.kernel.org/linux-cve-announce/2026082830-CVE-2026-80594-4f5d@gregkh/T"], "threat_severity": "Moderate"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[628329d52474323938a03826941e166bc7c8eff4,67a038c5a7c9bd8aabe6fba8ac9d2e31c0bd5a28)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[628329d52474323938a03826941e166bc7c8eff4,6314bd9e2a6b3362998dc85485dd4b0f133a3532)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[628329d52474323938a03826941e166bc7c8eff4,76eeeb3a8e3c13d5c0ef28666b57dcb5cc101a32)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[628329d52474323938a03826941e166bc7c8eff4,b847f2725ef47a26b3d01eca3d54fd811e5a544d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[628329d52474323938a03826941e166bc7c8eff4,bbbe31486cf2d12177462e4a814244c2597c9849)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[628329d52474323938a03826941e166bc7c8eff4,d4579af29e67ca8722db0a1194227f8015c8981d)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[628329d52474323938a03826941e166bc7c8eff4,e3f93d63dcd48c1f0ba9041f2ffa8aea7170e295)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[628329d52474323938a03826941e166bc7c8eff4,383934c249a9817d242d02d30bfbc8defbf0d533)"}}], "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": "3.10"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,3.10)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.10.261,5.11.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[5.15.212,5.16.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.178,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.145,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.97,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.2,*)"}}], "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": "2026-08-28T09:00:10.361541+00:00", "updated": "2026-08-31T14:00:19.797504+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"], "weaknesses": ["CWE-20", "CWE-606"]}