{"id":"CVE-2026-97535","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound VP index against VP_CTRL IOCB bitmap size\n\nThe VP control IOCB selects its target virtual port by setting one bit\nin vp_idx_map, a fixed 16-byte (1…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound VP index against VP_CTRL IOCB bitmap size\n\nThe VP control IOCB selects its target virtual port by setting one bit\nin vp_idx_map, a fixed 16-byte (1…","severity":"medium","cvss":5.5,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H","cwe":["CWE-787"],"vendor":"Linux","product":"Linux","affected":["Linux >= 2853192e154b813fe34a6cbee5e34dfef50d29d0 < c80a0362a0fe548c15a0324b1f61c04b62bb2174","Linux >= 2853192e154b813fe34a6cbee5e34dfef50d29d0 < 48a44e19746eaa70320a3c2571dcb345192fca72","Linux >= 2853192e154b813fe34a6cbee5e34dfef50d29d0 < 13354ad251ab009102597a791bc7c4d2265229e1","Linux >= 2853192e154b813fe34a6cbee5e34dfef50d29d0 < 878613ecb5a36db26859c4fd83daf9283a334fa2","Linux 4.16"],"published":"2026-09-25","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:18:02.283","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-97535","references":[{"url":"https://git.kernel.org/stable/c/13354ad251ab009102597a791bc7c4d2265229e1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/48a44e19746eaa70320a3c2571dcb345192fca72","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/878613ecb5a36db26859c4fd83daf9283a334fa2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/c80a0362a0fe548c15a0324b1f61c04b62bb2174","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97535.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-97535"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541234"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-97535"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-97535"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-97535.mbox"},{"url":"https://git.kernel.org/stable/c/674d783f2e80d0d7c1c86bf36dc0a09033e704de"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00206,"epssPercentile":0.10587,"cvssSource":"vendor","ingestedAt":"2026-09-25T11:06:38.923Z","slug":"CVE-2026-97535","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound VP index against VP_CTRL IOCB bitmap size\n\nThe VP control IOCB selects its target virtual port by setting one bit\nin vp_idx_map, a fixed 16-byte (128-bit) array in both\nvp_ctrl_entry_24xx and vp_ctrl_entry_24xx_ext. qla25xx_ctrlvp_iocb()\ncomputes map = (vp_index - 1) / 8 and writes vce->vp_idx_map[map]\nwithout checking that map stays within the array.\n\nmax_npiv_vports is taken from firmware and only sanitized to a\nMIN_MULTI_ID_FABRIC-aligned boundary, so it can legitimately be 191 or\n255, and qla24xx_control_vp() only rejects vp_index >= max_npiv_vports.\nA vp_index above 128 therefore yields map >= 16 and an out-of-bounds\nwrite of up to 16 bytes past vp_idx_map, corrupting the trailing IOCB\nfields (or the adjacent request-ring slot on the 64-byte layout).\n\nReject a vp_index that cannot be represented in the IOCB bitmap in\nqla24xx_control_vp(), and add a defensive ARRAY_SIZE() guard in\nqla25xx_ctrlvp_iocb() before the write. Adapters that report the usual\n63 or 127 NPIV vports are unaffected.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **Red Hat VEX** · Moderate · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 6, Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 7, Red Hat Enterprise Linux 8, … · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-97535.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":212484,"id":"CVE-2026-97535","ts":1790668188728,"field":"cvss","old":null,"new":"5.5"},{"seq":212483,"id":"CVE-2026-97535","ts":1790668188728,"field":"severity","old":"none","new":"medium"}]}