{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89844","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.770Z","datePublished":"2026-09-16T10:31:18.439Z","dateUpdated":"2026-09-16T14:39:13.254Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-16T14:39:13.254Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition\n\nqla24xx_report_id_acquisition() format-1 handling drops vport_slock after\ntaking the vport reference and then calls qla_update_host_map() without\nthe lock. That reaches qla_update_vp_map(), which mutates the ha->host_map\nbtree via btree_insert32()/btree_update32()/btree_remove32() and is\ndocumented to require vport_slock to be held by the caller. Running it\nunlocked can race concurrent host_map updates and corrupt the btree.\n\nThe format-2 path in the same function already wraps its host_map update\n(SET_AL_PA) in vport_slock; the format-1 path is the lone outlier.\n\nHold vport_slock across the format-1 qla_update_host_map() call to honor\nthe documented locking contract. The vref_count taken in the loop keeps\nthe vport valid, so this only adds the missing host_map serialization."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:A/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.8,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:A - qla24xx_report_id_acquisition() runs from qla2xxx response and ATIO interrupt paths when firmware reports NPIV N_Port ID acquisition or VP_STAT_ID_CHG after fabric FDISC. A peer or switch on the same Fibre Channel SAN can drive those events; FC is a non-routable fabric, so Adjacent is the highest defensible vector.\nAC:L - A fabric attacker can bounce the link or induce ID changes so multiple NPIV ports re-acquire IDs while the ATIO MSI-X path (atio_lock) and the response-queue path both call qla_update_host_map() on the shared ha->host_map btree. The attacker drives both sides of that race and can retry at fabric-event rate.\nPR:N - Report-ID IOCBs are firmware completions of unauthenticated Fibre Channel fabric login and ID assignment. The path checks no Linux credentials or capabilities on the victim host; FC-SP/EDIF is opt-in and not required.\nUI:N - Host-map updates run automatically in interrupt context when the HBA logs NPIV ports into the fabric or the fabric changes a VP ID. No user or administrator action such as mounting a device is required.\nS:U - Concurrent btree mutation corrupts qla2xxx host-map and kernel heap state inside the same host kernel security authority. This is not a VM escape, IOMMU bypass, or other cross-boundary impact.\nC:H - Unlocked btree_insert32/update32/remove32 on ha->host_map can free or reuse btree nodes while another CPU walks them, and the tree stores scsi_qla_host pointers consumed by qla_find_host_by_d_id(). That is UAF-class heap corruption enabling kernel memory disclosure.\nI:H - The same unlocked btree mutation can corrupt node pointers, double-free mempool objects via btree_shrink(), and install attacker-influenced scsi_qla_host pointers used to dispatch incoming FCP/ATIO commands, yielding write and control-flow primitives.\nA:H - lib/btree.c BUG_ON()s on inconsistent nodes, and a corrupted host_map causes oopses in interrupt context when ATIO or response processing dereferences a bad vha pointer, panicking the storage host."}]}],"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_mbx.c"],"versions":[{"version":"430eef03a763e5e76a371ba6d02779ae4a64b6ea","lessThan":"e8f1b0cb9782338c6341ceed816e9c1243743cdd","status":"affected","versionType":"git"},{"version":"430eef03a763e5e76a371ba6d02779ae4a64b6ea","lessThan":"6ed66e2a67bbd22877008ff9aa64bd574a7fc011","status":"affected","versionType":"git"},{"version":"430eef03a763e5e76a371ba6d02779ae4a64b6ea","lessThan":"776e4e8cbcf155302f430ce9793d1502e3c113a0","status":"affected","versionType":"git"},{"version":"430eef03a763e5e76a371ba6d02779ae4a64b6ea","lessThan":"7d0b3f745efb24c0aac5e06b49b3420bc65d23b9","status":"affected","versionType":"git"},{"version":"430eef03a763e5e76a371ba6d02779ae4a64b6ea","lessThan":"7944039ba9cb5c3a935d17c91004e3b8649ff58e","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_mbx.c"],"versions":[{"version":"6.3","status":"affected"},{"version":"0","lessThan":"6.3","status":"unaffected","versionType":"semver"},{"version":"6.6.157","lessThanOrEqual":"6.6.*","status":"unaffected","versionType":"semver"},{"version":"6.12.110","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.51","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.5","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","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":"6.3","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.3","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/e8f1b0cb9782338c6341ceed816e9c1243743cdd"},{"url":"https://git.kernel.org/stable/c/6ed66e2a67bbd22877008ff9aa64bd574a7fc011"},{"url":"https://git.kernel.org/stable/c/776e4e8cbcf155302f430ce9793d1502e3c113a0"},{"url":"https://git.kernel.org/stable/c/7d0b3f745efb24c0aac5e06b49b3420bc65d23b9"},{"url":"https://git.kernel.org/stable/c/7944039ba9cb5c3a935d17c91004e3b8649ff58e"}],"title":"scsi: qla2xxx: Hold vport_slock for host map update in report ID acquisition","x_generator":{"engine":"bippy-1.2.0"}}}}