{"id":"CVE-2026-43414","state":"PUBLISHED","title":"scsi: qla2xxx: Completely fix fcport double free","description":"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.","publishedAt":"2026-05-08T14:21:51.604Z","updatedAt":"2026-10-30T12:25:31.583Z","severity":{"score":9.8,"label":"Critical","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","source":"Linux"},"assigner":"Linux","products":["Linux Linux"],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3b9d72442adfbc9ddb0f76dd1b03977b3a578b16","status":"affected","lessThan":"bb9c7eca6f8f2e4a1cd8ba6711e7efe9044c0327","versionType":"git"},{"version":"ef23850940d9a52c39936d27254824ccf5e9b6bd","status":"affected","lessThan":"baabbd29191514391ca81594e43261bd17c6795a","versionType":"git"},{"version":"4895009c4bb72f71f2e682f1e7d2c2d96e482087","status":"affected","lessThan":"7172f41786dc08144da4627483e405de57bf8d2c","versionType":"git"},{"version":"4895009c4bb72f71f2e682f1e7d2c2d96e482087","status":"affected","lessThan":"4097a2afe8acc6038b71aab825430f1403decf20","versionType":"git"},{"version":"4895009c4bb72f71f2e682f1e7d2c2d96e482087","status":"affected","lessThan":"d48ea85463f5b34f7b92ea0a13eddf1ab993da7b","versionType":"git"},{"version":"4895009c4bb72f71f2e682f1e7d2c2d96e482087","status":"affected","lessThan":"c0b7da13a04bd70ef6070bfb9ea85f582294560a","versionType":"git"},{"version":"7861213201838480dc222634c56fb6db113d010d","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":"6.1.84","status":"affected","lessThan":"6.1.191","versionType":"semver"},{"version":"6.6.24","status":"affected","lessThan":"6.6.160","versionType":"semver"},{"version":"5.15.154","status":"affected","lessThan":"5.16","versionType":"semver"},{"version":"6.7.12","status":"affected","lessThan":"6.8","versionType":"semver"},{"version":"6.8.3","status":"affected","lessThan":"6.9","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/qla2xxx/qla_iocb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.9","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/qla2xxx/qla_iocb.c"]}],"references":["https://git.kernel.org/stable/c/bb9c7eca6f8f2e4a1cd8ba6711e7efe9044c0327","https://git.kernel.org/stable/c/baabbd29191514391ca81594e43261bd17c6795a","https://git.kernel.org/stable/c/7172f41786dc08144da4627483e405de57bf8d2c","https://git.kernel.org/stable/c/4097a2afe8acc6038b71aab825430f1403decf20","https://git.kernel.org/stable/c/d48ea85463f5b34f7b92ea0a13eddf1ab993da7b","https://git.kernel.org/stable/c/c0b7da13a04bd70ef6070bfb9ea85f582294560a"],"weaknesses":["CWE-415"],"ingestedAt":"2026-10-30T12:42:04.495Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/43xxx/CVE-2026-43414.json","commit":"db8103c5921aac81d5d90efcf3745980dafabf49","baselineCommit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-43414","state":"PUBLISHED","datePublished":"2026-05-08T14:21:51.604Z","dateUpdated":"2026-10-30T12:25:31.583Z","assignerShortName":"Linux","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateReserved":"2026-05-01T14:12:56.008Z"},"containers":{"cna":{"title":"scsi: qla2xxx: Completely fix fcport double free","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."}],"affected":[{"vendor":"Linux","product":"Linux","defaultStatus":"unaffected","versions":[{"version":"3b9d72442adfbc9ddb0f76dd1b03977b3a578b16","status":"affected","lessThan":"bb9c7eca6f8f2e4a1cd8ba6711e7efe9044c0327","versionType":"git"},{"version":"ef23850940d9a52c39936d27254824ccf5e9b6bd","status":"affected","lessThan":"baabbd29191514391ca81594e43261bd17c6795a","versionType":"git"},{"version":"4895009c4bb72f71f2e682f1e7d2c2d96e482087","status":"affected","lessThan":"7172f41786dc08144da4627483e405de57bf8d2c","versionType":"git"},{"version":"4895009c4bb72f71f2e682f1e7d2c2d96e482087","status":"affected","lessThan":"4097a2afe8acc6038b71aab825430f1403decf20","versionType":"git"},{"version":"4895009c4bb72f71f2e682f1e7d2c2d96e482087","status":"affected","lessThan":"d48ea85463f5b34f7b92ea0a13eddf1ab993da7b","versionType":"git"},{"version":"4895009c4bb72f71f2e682f1e7d2c2d96e482087","status":"affected","lessThan":"c0b7da13a04bd70ef6070bfb9ea85f582294560a","versionType":"git"},{"version":"7861213201838480dc222634c56fb6db113d010d","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":"6.1.84","status":"affected","lessThan":"6.1.191","versionType":"semver"},{"version":"6.6.24","status":"affected","lessThan":"6.6.160","versionType":"semver"},{"version":"5.15.154","status":"affected","lessThan":"5.16","versionType":"semver"},{"version":"6.7.12","status":"affected","lessThan":"6.8","versionType":"semver"},{"version":"6.8.3","status":"affected","lessThan":"6.9","versionType":"semver"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/qla2xxx/qla_iocb.c"]},{"vendor":"Linux","product":"Linux","defaultStatus":"affected","versions":[{"version":"6.9","status":"affected"},{"version":"0","status":"unaffected","lessThan":"6.9","versionType":"semver"},{"version":"6.1.191","status":"unaffected","lessThanOrEqual":"6.1.*","versionType":"semver"},{"version":"6.6.160","status":"unaffected","lessThanOrEqual":"6.6.*","versionType":"semver"},{"version":"6.12.114","status":"unaffected","lessThanOrEqual":"6.12.*","versionType":"semver"},{"version":"6.18.57","status":"unaffected","lessThanOrEqual":"6.18.*","versionType":"semver"},{"version":"6.19.9","status":"unaffected","lessThanOrEqual":"6.19.*","versionType":"semver"},{"version":"7.0","status":"unaffected","lessThanOrEqual":"*","versionType":"original_commit_for_fix"}],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["drivers/scsi/qla2xxx/qla_iocb.c"]}],"references":[{"url":"https://git.kernel.org/stable/c/bb9c7eca6f8f2e4a1cd8ba6711e7efe9044c0327"},{"url":"https://git.kernel.org/stable/c/baabbd29191514391ca81594e43261bd17c6795a"},{"url":"https://git.kernel.org/stable/c/7172f41786dc08144da4627483e405de57bf8d2c"},{"url":"https://git.kernel.org/stable/c/4097a2afe8acc6038b71aab825430f1403decf20"},{"url":"https://git.kernel.org/stable/c/d48ea85463f5b34f7b92ea0a13eddf1ab993da7b"},{"url":"https://git.kernel.org/stable/c/c0b7da13a04bd70ef6070bfb9ea85f582294560a"}],"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."}]}],"providerMetadata":{"shortName":"Linux","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","dateUpdated":"2026-10-30T12:25:31.583Z"},"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.1.84","versionEndExcluding":"6.1.191"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.6.24","versionEndExcluding":"6.6.160"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.9","versionEndExcluding":"6.12.114"},{"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":"6.7.12"},{"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":"6.7.12"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8.3"}]}]}],"x_generator":{"engine":"bippy-1.2.0"}},"adp":[{"title":"CISA ADP Vulnrichment","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"}}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-415","lang":"en","type":"CWE","description":"CWE-415 Double Free"}]}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-10-19T19:26:36.522Z"}}]}}}