{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89861","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.771Z","datePublished":"2026-09-16T10:31:32.987Z","dateUpdated":"2026-09-16T14:39:24.344Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-16T14:39:24.344Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()\n\nIn the format 1 path, the virtual port is located on ha->vp_list while\nholding vport_slock, but the lock is dropped before vp is used:\nqla_update_host_map() is called and VP_IDX_ACQUIRED/REGISTER_FC4_NEEDED/\nREGISTER_FDMI_NEEDED are set on vp. No reference is taken across that\nwindow, so a concurrent qla24xx_deallocate_vp_id() can tear the vport\ndown and free it, leading to a use-after-free.\n\nTake a vport reference (vref_count) under vport_slock when the matching\nvp is found, and drop it after the last use of\nvp. qla24xx_deallocate_vp_id() waits for vref_count to reach zero before\nunlinking and freeing the vport, so the pointer stays valid. This\nmatches the reference idiom already used by the other ha->vp_list\ntraversals."}],"metrics":[{"cvssV3_1":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","baseScore":8.1,"baseSeverity":"HIGH"},"scenarios":[{"lang":"en","value":"AV:N - qla24xx_report_id_acquisition() runs from qla24xx_process_response_queue() and the ATIO MSI-X path on firmware VP_RPT_ID IOCBs after fabric FDISC or VP_STAT_ID_CHG. QLogic CNAs speak FCoE and SANs are stretched via FCIP, so a remote SAN peer drives this without a local syscall, matching sibling CVE-2026-89848.\nAC:H - The use-after-free requires qla24xx_deallocate_vp_id() to unlink the vport and scsi_host_put() it after the ISR drops vport_slock, which occurs only during NPIV vport deletion or failed vport create, a victim state a fabric attacker cannot initiate.\nPR:N - Report-ID IOCBs are firmware completions of unauthenticated Fibre Channel fabric login and N_Port ID assignment. The interrupt path performs no Linux credential or capability check, so a fabric peer needs no account on the victim host.\nUI:N - VP_RPT_ID handling runs automatically from the HBA interrupt and qla_do_work paths when the fabric assigns or changes an NPIV port ID. Concurrent vport teardown occurs during routine NPIV delete or driver remove, without a mount, open, or other interactive victim step.\nS:U - The use-after-free is of scsi_qla_host inside the host kernel qla2xxx driver and does not cross a VM, IOMMU, or other separate security-authority boundary.\nC:H - After scsi_host_put() frees the vport, the ISR still calls qla_update_host_map() and set_bit() on the dangling scsi_qla_host. That kernel heap use-after-free enables disclosure of reused object contents.\nI:H - qla_update_host_map() writes the freed vport's d_id and inserts the dangling vha pointer into ha->host_map, and set_bit() writes vp_flags/dpc_flags on the freed object, yielding a kernel write and control-flow hijack primitive.\nA:H - Use-after-free of scsi_qla_host from interrupt or qla_do_work context produces a kernel oops or panic even when not fully exploited, taking down storage served by the adapter."}]}],"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":"2c3dfe3f6ad8daff5acdb01713e4f2b116e78136","lessThan":"d09ef32af1e05d79f29b460521a20bc4e6fd2ecf","status":"affected","versionType":"git"},{"version":"2c3dfe3f6ad8daff5acdb01713e4f2b116e78136","lessThan":"4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69","status":"affected","versionType":"git"},{"version":"2c3dfe3f6ad8daff5acdb01713e4f2b116e78136","lessThan":"267533b28ddf2c9223d30ad7e6960fa9e936428e","status":"affected","versionType":"git"},{"version":"2c3dfe3f6ad8daff5acdb01713e4f2b116e78136","lessThan":"f8d2eb510c063a8ca79a5dc766a4303d3925fe83","status":"affected","versionType":"git"},{"version":"2c3dfe3f6ad8daff5acdb01713e4f2b116e78136","lessThan":"f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297","status":"affected","versionType":"git"},{"version":"2c3dfe3f6ad8daff5acdb01713e4f2b116e78136","lessThan":"47272152a13d202d98496208f9bf382c1cf4d4fb","status":"affected","versionType":"git"},{"version":"2c3dfe3f6ad8daff5acdb01713e4f2b116e78136","lessThan":"d556f899964d184e6cb788f3fa9dcddcafe1ab2d","status":"affected","versionType":"git"},{"version":"2c3dfe3f6ad8daff5acdb01713e4f2b116e78136","lessThan":"793cedee296fd819bfadc2a7ec4d52faf9c09a0a","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":"2.6.23","status":"affected"},{"version":"0","lessThan":"2.6.23","status":"unaffected","versionType":"semver"},{"version":"5.10.270","lessThanOrEqual":"5.10.*","status":"unaffected","versionType":"semver"},{"version":"5.15.221","lessThanOrEqual":"5.15.*","status":"unaffected","versionType":"semver"},{"version":"6.1.188","lessThanOrEqual":"6.1.*","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":"2.6.23","versionEndExcluding":"5.10.270"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"5.15.221"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.1.188"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.6.157"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.12.110"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"6.18.51"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"7.2.5"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"2.6.23","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/d09ef32af1e05d79f29b460521a20bc4e6fd2ecf"},{"url":"https://git.kernel.org/stable/c/4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69"},{"url":"https://git.kernel.org/stable/c/267533b28ddf2c9223d30ad7e6960fa9e936428e"},{"url":"https://git.kernel.org/stable/c/f8d2eb510c063a8ca79a5dc766a4303d3925fe83"},{"url":"https://git.kernel.org/stable/c/f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297"},{"url":"https://git.kernel.org/stable/c/47272152a13d202d98496208f9bf382c1cf4d4fb"},{"url":"https://git.kernel.org/stable/c/d556f899964d184e6cb788f3fa9dcddcafe1ab2d"},{"url":"https://git.kernel.org/stable/c/793cedee296fd819bfadc2a7ec4d52faf9c09a0a"}],"title":"scsi: qla2xxx: Hold vport reference in qla24xx_report_id_acquisition()","x_generator":{"engine":"bippy-1.2.0"}}}}