{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2025-68745","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2025-12-24T10:30:51.031Z","datePublished":"2025-12-24T12:09:41.517Z","dateUpdated":"2026-08-05T12:11:14.649Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-08-05T12:11:14.649Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Clear cmds after chip reset\n\nCommit aefed3e5548f (\"scsi: qla2xxx: target: Fix offline port handling\nand host reset handling\") caused two problems:\n\n1. Commands sent to FW, after chip reset got stuck and never freed as FW\n   is not going to respond to them anymore.\n\n2. BUG_ON(cmd->sg_mapped) in qlt_free_cmd().  Commit 26f9ce53817a\n   (\"scsi: qla2xxx: Fix missed DMA unmap for aborted commands\")\n   attempted to fix this, but introduced another bug under different\n   circumstances when two different CPUs were racing to call\n   qlt_unmap_sg() at the same time: BUG_ON(!valid_dma_direction(dir)) in\n   dma_unmap_sg_attrs().\n\nSo revert \"scsi: qla2xxx: Fix missed DMA unmap for aborted commands\" and\npartially revert \"scsi: qla2xxx: target: Fix offline port handling and\nhost reset handling\" at __qla2x00_abort_all_cmds."}],"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 - A remote Fibre Channel/FCoE initiator can reach the vulnerable command lifecycle by sending FCP I/O and ABTS/TMR frames, without local host access.\nAC:L - The initiator can keep large PI/DIF I/O active while repeatedly issuing abort or reset requests, controlling both sides of the abort-versus-completion race.\nPR:N - Dynamic/demo ACL configurations admit fabric initiators without credentials, and WWPN-based session establishment requires no privilege on the target host.\nUI:N - Exploitation requires only attacker-generated fabric traffic and no victim action during the attack.\nS:U - The vulnerable driver and the affected kernel memory and storage resources belong to the same security authority.\nC:H - Concurrent unmapping can double-free shared DIF CRC-context and DSD objects, producing overlapping firmware-visible DMA contexts that can expose kernel or cross-command data.\nI:H - The DMA-pool double-free and concurrent DSD list deletion can corrupt kernel memory or redirect device DMA, potentially enabling arbitrary modification or code execution.\nA:H - The reported paths reach kernel BUG assertions, while reset-time command leaks can permanently exhaust resources; either can crash or render the target unavailable."}]}],"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_os.c","drivers/scsi/qla2xxx/qla_target.c","drivers/scsi/qla2xxx/qla_target.h"],"versions":[{"version":"aefed3e5548f28e5fecafda6604fcbc65484dbaa","lessThan":"5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936","status":"affected","versionType":"git"},{"version":"aefed3e5548f28e5fecafda6604fcbc65484dbaa","lessThan":"d46c69a087aa3d1513f7a78f871b80251ea0c1ae","status":"affected","versionType":"git"},{"version":"eb67b7a23d357f578578e737cb6412ae2384f352","status":"affected","versionType":"git"},{"version":"ec9639d92c1e10d4bc667e842753d85e21683d5c","status":"affected","versionType":"git"},{"version":"e6e957f552d5b696879a31e5b0e2a9120e1ea86e","status":"affected","versionType":"git"},{"version":"4.9.316","lessThan":"4.10","status":"affected","versionType":"semver"},{"version":"4.14.281","lessThan":"4.15","status":"affected","versionType":"semver"},{"version":"4.19.245","lessThan":"4.20","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_os.c","drivers/scsi/qla2xxx/qla_target.c","drivers/scsi/qla2xxx/qla_target.h"],"versions":[{"version":"5.2","status":"affected"},{"version":"0","lessThan":"5.2","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":"5.2","versionEndExcluding":"6.18.2"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"5.2","versionEndExcluding":"6.19"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.9.316"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.14.281"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"4.19.245"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/5c1fb3fd05da3d55b8cbc42d7d660b313cbdc936"},{"url":"https://git.kernel.org/stable/c/d46c69a087aa3d1513f7a78f871b80251ea0c1ae"}],"title":"scsi: qla2xxx: Clear cmds after chip reset","x_generator":{"engine":"bippy-1.2.0"}}}}