{"id":"CVE-2026-89861","title":"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 …","summary":"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 …","severity":"high","cvss":8.1,"cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 < d09ef32af1e05d79f29b460521a20bc4e6fd2ecf","Linux >= 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 < 4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69","Linux >= 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 < 267533b28ddf2c9223d30ad7e6960fa9e936428e","Linux >= 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 < f8d2eb510c063a8ca79a5dc766a4303d3925fe83","Linux >= 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 < f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297","Linux >= 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 < 47272152a13d202d98496208f9bf382c1cf4d4fb","Linux >= 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 < d556f899964d184e6cb788f3fa9dcddcafe1ab2d","Linux >= 2c3dfe3f6ad8daff5acdb01713e4f2b116e78136 < 793cedee296fd819bfadc2a7ec4d52faf9c09a0a","Linux 2.6.23"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T15:18:13.917","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89861","references":[{"url":"https://git.kernel.org/stable/c/267533b28ddf2c9223d30ad7e6960fa9e936428e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/47272152a13d202d98496208f9bf382c1cf4d4fb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/4b7f0a95bfeb1d3673da4c29bbe9872a61bc1a69","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/793cedee296fd819bfadc2a7ec4d52faf9c09a0a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d09ef32af1e05d79f29b460521a20bc4e6fd2ecf","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d556f899964d184e6cb788f3fa9dcddcafe1ab2d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f6b3bcc7cb2f4c37464958b9fd97dc7f185ea297","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f8d2eb510c063a8ca79a5dc766a4303d3925fe83","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-16T10:53:53.990Z","epss":0.00571,"epssPercentile":0.46031,"slug":"CVE-2026-89861","body":"## Overview\n\nIn 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":45,"depthScoreParts":{"impact":44.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[{"seq":205186,"id":"CVE-2026-89861","ts":1789570705638,"field":"cvss","old":null,"new":"8.1"},{"seq":205185,"id":"CVE-2026-89861","ts":1789570705638,"field":"severity","old":"none","new":"high"}]}