{"id":"CVE-2026-98024","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/ism: folio_put() after error\n\ndmb->cpu_addr was allocated via folio_alloc()","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ns390/ism: folio_put() after error\n\ndmb->cpu_addr was allocated via folio_alloc(). Use folio_put() instead of\nkfree() in the error exit of ism_alloc_dmb() to avoid slab …","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-763"],"vendor":"Linux","product":"Linux","affected":["Linux >= 121fb75414ab8debafd548bded9d888cd5a8f165 < 90f6f5cb331af52b14c0f309fb27dc243e8e2982","Linux >= 83781384a96b95e2b6403d3c8a002b2c89031770 < 890e2ef726904d1d8328e4b9f5090eeb8761b9d1","Linux >= 83781384a96b95e2b6403d3c8a002b2c89031770 < eebb6a9017b55ac05be770cf7b89f9da49505ae7","Linux >= 83781384a96b95e2b6403d3c8a002b2c89031770 < 60983356fab0c1171c5cb1b56a36349ebadc608e","Linux >= 83781384a96b95e2b6403d3c8a002b2c89031770 < 907a56ab3eb8a58500a58daa76087f17bb2b6826","Linux f3e23edc4917f72139b805f208aeadf23376a0b5","Linux >= 6.6.29 < 6.6.158","Linux >= 6.8.8 < 6.9","Linux 6.9"],"published":"2026-09-25","updated":"2026-10-03","sourceUpdated":"2026-10-03T11:18:25.437","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-98024","references":[{"url":"https://git.kernel.org/stable/c/60983356fab0c1171c5cb1b56a36349ebadc608e","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/890e2ef726904d1d8328e4b9f5090eeb8761b9d1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/907a56ab3eb8a58500a58daa76087f17bb2b6826","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/90f6f5cb331af52b14c0f309fb27dc243e8e2982","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/eebb6a9017b55ac05be770cf7b89f9da49505ae7","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98024.json"},{"url":"https://access.redhat.com/security/cve/CVE-2026-98024"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2541050"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-98024"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98024"},{"url":"https://git.kernel.org/pub/scm/linux/security/vulns.git/plain/cve/published/2026/CVE-2026-98024.mbox"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"epss":0.00168,"epssPercentile":0.05972,"cvssSource":"vendor","ingestedAt":"2026-09-25T11:06:38.855Z","slug":"CVE-2026-98024","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ns390/ism: folio_put() after error\n\ndmb->cpu_addr was allocated via folio_alloc(). Use folio_put() instead of\nkfree() in the error exit of ism_alloc_dmb() to avoid slab allocator\ncorruption.\n\nWhile at it, reset dmb->cpu_addr after folio_put to avoid unintentional UAF\nby future callers.\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 9, Red Hat OpenShift Container Platform 4 · no fix planned: Red Hat Enterprise Linux 10, Red Hat Enterprise Linux 9, Red Hat OpenShift Container Platform 4 · updated 2026-10-17 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-98024.json)","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":30.3,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":212472,"id":"CVE-2026-98024","ts":1790668185668,"field":"cvss","old":null,"new":"5.5"},{"seq":212471,"id":"CVE-2026-98024","ts":1790668185668,"field":"severity","old":"none","new":"medium"}]}