{"id":"CVE-2026-89858","title":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()\n\nqla2x00_update_fru_versions() copies the user-supplied BSG request into\na fixed 256-byte stack buffer…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()\n\nqla2x00_update_fru_versions() copies the user-supplied BSG request into\na fixed 256-byte stack buffer…","severity":"medium","vendor":"Linux","product":"Linux","affected":["Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 < af733bbfcf667af1871a2735fba2835b0da71efb","Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 < a9706d5e754e77515a92bb532bd0d73644979a1f","Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 < 7e3154c97ec15460f715dbbe4097c255cce110b1","Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 < 047f1f7ee6f85bde28abfdda9fa550191ddc0532","Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 < f93e8039e6fd54a3c027c6184daf00b745b576a0","Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 < 7b22b4cb8822805cef7ba618da6f76e1474d68bd","Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 < f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514","Linux >= 697a4bc69159c3396035b0506ffa55c4b2d0b1f4 < de62cf265dbe309f34f144a6cdbca9240317727e","Linux 3.2"],"published":"2026-09-16","updated":"2026-09-16","sourceUpdated":"2026-09-16T11:16:53.693","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89858","references":[{"url":"https://git.kernel.org/stable/c/047f1f7ee6f85bde28abfdda9fa550191ddc0532","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7b22b4cb8822805cef7ba618da6f76e1474d68bd","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/7e3154c97ec15460f715dbbe4097c255cce110b1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a9706d5e754e77515a92bb532bd0d73644979a1f","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/af733bbfcf667af1871a2735fba2835b0da71efb","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/de62cf265dbe309f34f144a6cdbca9240317727e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f2d4f025b67fcbfb2bbbadd3b5a6a43c4b436514","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/f93e8039e6fd54a3c027c6184daf00b745b576a0","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89858.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-89858"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2535314"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-89858"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89858"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-89858.mbox"},{"url":"https://kernelcve.org/list/?q=CVE-2026-89858"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ingestedAt":"2026-09-16T10:53:53.991Z","epss":0.00216,"epssPercentile":0.11995,"cvss":6.1,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:H","cvssSource":"vendor","cwe":["CWE-20"],"slug":"CVE-2026-89858","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\nscsi: qla2xxx: Bound image count in qla2x00_update_fru_versions()\n\nqla2x00_update_fru_versions() copies the user-supplied BSG request into\na fixed 256-byte stack buffer (bsg[DMA_POOL_SIZE]) and then iterates\nlist->count times over the qla_image_version array embedded in that\nbuffer, advancing the image pointer each iteration. count is taken\ndirectly from user input with no upper bound, while only (DMA_POOL_SIZE\n- sizeof(list->count)) / sizeof(struct qla_image_version) = 6 entries\nactually fit. A larger count walks the image pointer off the end of the\nstack buffer, reading adjacent kernel stack memory and sending it to the\ndevice via qla2x00_write_sfp().\n\nReject requests whose declared count does not fit in the buffer.\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 2026-10-24 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-89858.json)","depth":"sunlit","depthScore":34,"depthScoreParts":{"impact":33.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":228550,"id":"CVE-2026-89858","ts":1792844782222,"field":"cvss","old":null,"new":"6.1"},{"seq":228549,"id":"CVE-2026-89858","ts":1792844782222,"field":"severity","old":"none","new":"medium"}]}