{"id":"CVE-2026-90388","title":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/dma: Check atomic pool allocation result directly\n\nThe non-blocking, non-coherent allocation path uses dma_alloc_from_pool(),\nwhich returns the allocated page and…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\niommu/dma: Check atomic pool allocation result directly\n\nThe non-blocking, non-coherent allocation path uses dma_alloc_from_pool(),\nwhich returns the allocated page and…","severity":"high","cvss":7.8,"cvssVector":"CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","vendor":"Linux","product":"Linux","affected":["Linux >= 9420139f516d7fbc248ce17f35275cb005ed98ea < ac9cd0a669b8be5d178dbd471b0d68039dac58b5","Linux >= 9420139f516d7fbc248ce17f35275cb005ed98ea < db46cb9da83a507d86d2bb080bdb09c865da3d0a","Linux >= 9420139f516d7fbc248ce17f35275cb005ed98ea < d56c3f955b21e5764c1497e295a5b5d0b3a40470","Linux >= 9420139f516d7fbc248ce17f35275cb005ed98ea < 06dffc96693083dda3412311406e558cf27f1574","Linux >= 9420139f516d7fbc248ce17f35275cb005ed98ea < a4ace31d732b657d774e31fb444c0c27d42c78e5","Linux >= 9420139f516d7fbc248ce17f35275cb005ed98ea < fb0b39287ba894dbdfac2901c51788b63f5c2291","Linux >= 9420139f516d7fbc248ce17f35275cb005ed98ea < 8c486293ddd0af60991408149fc3e964ea888dc4","Linux >= 9420139f516d7fbc248ce17f35275cb005ed98ea < af95a0ebc0a0db0762be75f51eadf770bad01aaa","Linux 47184b9ddf184cc9a77cf441943a0fe9b7afa575","Linux >= 5.8.6 < 5.9","Linux 5.9"],"published":"2026-09-17","updated":"2026-09-18","sourceUpdated":"2026-09-18T18:17:56.770","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-90388","references":[{"url":"https://git.kernel.org/stable/c/06dffc96693083dda3412311406e558cf27f1574","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/8c486293ddd0af60991408149fc3e964ea888dc4","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/a4ace31d732b657d774e31fb444c0c27d42c78e5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ac9cd0a669b8be5d178dbd471b0d68039dac58b5","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/af95a0ebc0a0db0762be75f51eadf770bad01aaa","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/d56c3f955b21e5764c1497e295a5b5d0b3a40470","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/db46cb9da83a507d86d2bb080bdb09c865da3d0a","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/fb0b39287ba894dbdfac2901c51788b63f5c2291","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"epss":0.00164,"epssPercentile":0.06025,"ingestedAt":"2026-09-17T16:21:47.804Z","slug":"CVE-2026-90388","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\niommu/dma: Check atomic pool allocation result directly\n\nThe non-blocking, non-coherent allocation path uses dma_alloc_from_pool(),\nwhich returns the allocated page and fills cpu_addr only on success.\n\nDo not rely on cpu_addr to detect allocation failure in this path. Check\nthe returned page directly before using it for the IOMMU mapping.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"twilight","depthScore":43,"depthScoreParts":{"impact":42.9,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[{"seq":207293,"id":"CVE-2026-90388","ts":1789757340506,"field":"cvss","old":null,"new":"7.8"},{"seq":207292,"id":"CVE-2026-90388","ts":1789757340506,"field":"severity","old":"none","new":"high"}]}