{"id":"CVE-2026-90267","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails\n\nsd_set_special_bvec() allocates a special payload page for UNMAP and\nWRITE SAME commands","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails\n\nsd_set_special_bvec() allocates a special payload page for UNMAP and\nWRITE SAME commands. If sc…","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-772"],"vendor":"Linux","product":"Linux","affected":["Linux >= 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 < 5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d","Linux >= 81d926e8b5520e38f1f72dd7bb7cfc81c1a69d87 < bb31844d88b77138b67aa20c3600203baff40140","Linux 4.12"],"published":"2026-09-17","updated":"2026-10-15","sourceUpdated":"2026-10-15T11:18:00.077","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90267","references":[{"url":"https://git.kernel.org/stable/c/5d7d1b8b525e5eff33a01d07dfcf7bdd3b6d790d","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/bb31844d88b77138b67aa20c3600203baff40140","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/e90f746f4ca3896ca560e820b7b6b0a467026938","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90267.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-90267"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2536584"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-90267"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-90267"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-90267.mbox"},{"url":"https://git.kernel.org/stable/c/710a2448a06a8215ba8acb4a2791954800f7db0a"},{"url":"https://git.kernel.org/stable/c/744a65e113094756e6c1cfba9ff1bf4247cb68d4"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00209,"epssPercentile":0.1095,"cvssSource":"vendor","ingestedAt":"2026-09-17T16:21:47.839Z","slug":"CVE-2026-90267","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails\n\nsd_set_special_bvec() allocates a special payload page for UNMAP and\nWRITE SAME commands. If scsi_alloc_sgtables() fails afterward in\nsd_setup_unmap_cmnd() or sd_setup_write_same{10,16}_cmnd(), the SCSI\nmidlayer does not call uninit_command() because RQF_DONTPREP is not set\nyet, leaking the page.\n\nCall sd_uninit_command() on error, and clear RQF_SPECIAL_PAYLOAD after\nfreeing the page.\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** · Low · affected: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 6, 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 8, Red Hat Enterprise Linux 9, … · updated 2026-10-05 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-90267.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":216314,"id":"CVE-2026-90267","ts":1791274071463,"field":"cvss","old":null,"new":"5.5"},{"seq":216313,"id":"CVE-2026-90267","ts":1791274071463,"field":"severity","old":"none","new":"medium"}]}