{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-43414", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-01T14:12:56.008Z", "datePublished": "2026-05-08T14:21:51.604Z", "dateUpdated": "2026-10-16T15:20:41.536Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-10-15T10:07:18.437Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Completely fix fcport double free\n\nIn qla24xx_els_dcmd_iocb() sp->free is set to qla2x00_els_dcmd_sp_free().\nWhen an error happens, this function is called by qla2x00_sp_release(),\nwhen kref_put() releases the first and the last reference.\n\nqla2x00_els_dcmd_sp_free() frees fcport by calling qla2x00_free_fcport().\nDoing it one more time after kref_put() is a bad idea." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H", "baseScore": 9.8, "baseSeverity": "CRITICAL" }, "scenarios": [ { "lang": "en", "value": "AV:N - The vulnerable ELS direct-command path is reachable from a remote Fibre Channel initiator through qla2xxx target-mode ELS/session-deletion handling, not only through the root-only sysfs issue_logo knob. Using the highest reasonable SAN deployment, attacker-controlled FC frames from another host on the storage fabric make this network-reachable.\nAC:L - The bug is a deterministic double free once the ELS direct-command error path is hit after kref_put(), and the attacker can plausibly drive repeated logins/logouts/session teardown plus resource pressure to make qla2x00_start_sp() fail. No uncontrollable race is required for the memory corruption once that path is reached.\nPR:N - The FC target path processes remote ELS events before any Linux credential or capability check on the victim, so the attacker does not need a local account or kernel privilege. Fabric access/zoning is environmental network access, not privileges on the vulnerable system.\nUI:N - No victim user action is required; remote FC protocol activity can drive the target-mode session deletion and LOGO path. The sysfs path requires an admin write, but it is not the highest-severity reachable path.\nS:U - The corruption occurs inside the same kernel/driver security authority and does not cross a VM, IOMMU, or other separate security boundary. A kernel compromise or crash remains unchanged scope.\nC:H - This is kernel heap double-free/use-after-free style memory corruption of an fc_port object. Under the required overestimation rule, such corruption can be leveraged for information disclosure through heap reuse/read primitives.\nI:H - A double free of a kernel heap object can corrupt allocator state or enable controlled reuse of freed memory, making arbitrary write or control-flow compromise defensible. Therefore integrity impact is High.\nA:H - Related qla2xxx fcport double-free reports show immediate SLUB/kernel BUG crashes, and this fix removes another remaining double-free error path. A remotely triggerable kernel crash is High availability impact." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/scsi/qla2xxx/qla_iocb.c" ], "versions": [ { "version": "4895009c4bb72f71f2e682f1e7d2c2d96e482087", "lessThan": "4097a2afe8acc6038b71aab825430f1403decf20", "status": "affected", "versionType": "git" }, { "version": "4895009c4bb72f71f2e682f1e7d2c2d96e482087", "lessThan": "d48ea85463f5b34f7b92ea0a13eddf1ab993da7b", "status": "affected", "versionType": "git" }, { "version": "4895009c4bb72f71f2e682f1e7d2c2d96e482087", "lessThan": "c0b7da13a04bd70ef6070bfb9ea85f582294560a", "status": "affected", "versionType": "git" }, { "version": "7861213201838480dc222634c56fb6db113d010d", "status": "affected", "versionType": "git" }, { "version": "3b9d72442adfbc9ddb0f76dd1b03977b3a578b16", "status": "affected", "versionType": "git" }, { "version": "ef23850940d9a52c39936d27254824ccf5e9b6bd", "status": "affected", "versionType": "git" }, { "version": "6c6bf6cacf9461f8d301cfac4f9c175d80cbcc63", "status": "affected", "versionType": "git" }, { "version": "cd10dee1f07a782f5aa05703c55299ca86a85ee4", "status": "affected", "versionType": "git" }, { "version": "b03e626bd6d3f0684f56ee1890d70fc9ca991c04", "status": "affected", "versionType": "git" }, { "version": "282877633b25d67021a34169c5b5519b1d4ef65e", "status": "affected", "versionType": "git" }, { "version": "f85af9f1aa5e2f53694a6cbe72010f754b5ff862", "status": "affected", "versionType": "git" }, { "version": "9b43d2884b54d415caab48878b526dfe2ae9921b", "status": "affected", "versionType": "git" }, { "version": "846fb9f112f618ec6ae181d8dae7961652574774", "status": "affected", "versionType": "git" }, { "version": "5.15.154", "lessThan": "5.16", "status": "affected", "versionType": "semver" }, { "version": "6.1.84", "lessThan": "6.2", "status": "affected", "versionType": "semver" }, { "version": "6.6.24", "lessThan": "6.7", "status": "affected", "versionType": "semver" }, { "version": "6.7.12", "lessThan": "6.8", "status": "affected", "versionType": "semver" }, { "version": "6.8.3", "lessThan": "6.9", "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/scsi/qla2xxx/qla_iocb.c" ], "versions": [ { "version": "6.9", "status": "affected" }, { "version": "0", "lessThan": "6.9", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.57", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19.9", "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": [ { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.18.57" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "6.19.9" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.9", "versionEndExcluding": "7.0" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.154" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.84" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.24" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8.3" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.154" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.84" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6.24" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.7.12" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8.3" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/4097a2afe8acc6038b71aab825430f1403decf20" }, { "url": "https://git.kernel.org/stable/c/d48ea85463f5b34f7b92ea0a13eddf1ab993da7b" }, { "url": "https://git.kernel.org/stable/c/c0b7da13a04bd70ef6070bfb9ea85f582294560a" } ], "title": "scsi: qla2xxx: Completely fix fcport double free", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "id": "CVE-2026-43414", "role": "CISA Coordinator", "options": [ { "Exploitation": "none" }, { "Automatable": "yes" }, { "Technical Impact": "total" } ], "version": "2.0.3", "timestamp": "2026-10-16T15:17:19.251803Z" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-10-16T15:20:41.536Z" } } ] } }