{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2025-68741", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-12-24T10:30:51.030Z", "datePublished": "2025-12-24T12:09:38.655Z", "dateUpdated": "2026-08-05T12:11:13.586Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:11:13.586Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Fix improper freeing of purex item\n\nIn qla2xxx_process_purls_iocb(), an item is allocated via\nqla27xx_copy_multiple_pkt(), which internally calls\nqla24xx_alloc_purex_item().\n\nThe qla24xx_alloc_purex_item() function may return a pre-allocated item\nfrom a per-adapter pool for small allocations, instead of dynamically\nallocating memory with kzalloc().\n\nAn error handling path in qla2xxx_process_purls_iocb() incorrectly uses\nkfree() to release the item. If the item was from the pre-allocated\npool, calling kfree() on it is a bug that can lead to memory corruption.\n\nFix this by using the correct deallocation function,\nqla24xx_free_purex_item(), which properly handles both dynamically\nallocated and pre-allocated items." } ], "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 - An attacker-controlled or compromised FC-NVMe target can send unsolicited Link Service frames that HBA firmware delivers as PT_LS4_UNSOL to the vulnerable function. This remote storage-network traffic can traverse switched or extended FC fabrics without local victim access.\nAC:L - The peer controls a sub-64-byte LS request so qla24xx_alloc_purex_item() selects the embedded default item, and repeated request flooding can pressure GFP_ATOMIC allocations until the subsequent context allocation fails. No attacker-uncontrollable race or address guess is required.\nPR:N - The source ID must match a discovered, non-deleted FC port, but the vulnerable path performs no credential, capability, or authorization check. An attacker operating that remote peer requires no privileges on the victim.\nUI:N - Processing occurs automatically in the HBA interrupt response path when the unsolicited FC-NVMe frame arrives. No victim action is required during exploitation.\nS:U - The corruption compromises the kernel and resources governed by that same host security authority. It does not inherently cross a VM, IOMMU, or other separate security boundary.\nC:H - Freeing the embedded item can poison allocator metadata or release memory backing the live Scsi_Host and qla adapter state, creating a powerful use-after-free and reclaim opportunity. Heap shaping can leverage this corruption to disclose arbitrary kernel memory.\nI:H - The invalid free permits reuse and corruption of live kernel and adapter structures. Attacker-influenced allocations and payload processing can turn this into arbitrary writes or control-flow hijacking.\nA:H - The invalid free can immediately trigger allocator diagnostics, an oops, or a panic, while undetected slab corruption and use-after-free can crash the kernel later. The remote peer can repeat the triggering traffic." } ] } ], "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_nvme.c" ], "versions": [ { "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9", "status": "affected", "versionType": "git" }, { "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "8e9f0a0717ba31d5842721627ade1e62d7aec012", "status": "affected", "versionType": "git" }, { "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "cfe3e2f768d248fd3d965d561d0768a56dd0b9f8", "status": "affected", "versionType": "git" }, { "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "5fa1c8226b4532ad7011d295d3ab4ad45df105ae", "status": "affected", "versionType": "git" }, { "version": "875386b98857822b77ac7f95bdf367b70af5b78c", "lessThan": "78b1a242fe612a755f2158fd206ee6bb577d18ca", "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/scsi/qla2xxx/qla_nvme.c" ], "versions": [ { "version": "6.6", "status": "affected" }, { "version": "0", "lessThan": "6.6", "status": "unaffected", "versionType": "semver" }, { "version": "6.6.120", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.63", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.17.13", "lessThanOrEqual": "6.17.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.2", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.19", "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": "6.6", "versionEndExcluding": "6.6.120" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.12.63" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.17.13" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.18.2" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.6", "versionEndExcluding": "6.19" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/4bccd506a1f1ab01d1f45b2a3effff6bedc73cf9" }, { "url": "https://git.kernel.org/stable/c/8e9f0a0717ba31d5842721627ade1e62d7aec012" }, { "url": "https://git.kernel.org/stable/c/cfe3e2f768d248fd3d965d561d0768a56dd0b9f8" }, { "url": "https://git.kernel.org/stable/c/5fa1c8226b4532ad7011d295d3ab4ad45df105ae" }, { "url": "https://git.kernel.org/stable/c/78b1a242fe612a755f2158fd206ee6bb577d18ca" } ], "title": "scsi: qla2xxx: Fix improper freeing of purex item", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-06-16T19:31:58.802980Z", "id": "CVE-2025-68741", "options": [ { "Exploitation": "none" }, { "Automatable": "no" }, { "Technical Impact": "partial" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-06-16T19:32:08.437Z" } } ] } }