{"id":"CVE-2026-89808","title":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram\n\nWhen migration vm range is hole at cpu side(MIGRATE_PFN_MIGRATE set +\nMIGRATE_PFN_VALID unse…","summary":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram\n\nWhen migration vm range is hole at cpu side(MIGRATE_PFN_MIGRATE set +\nMIGRATE_PFN_VALID unse…","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 >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < ae806a95b28fcecb913430cfa45a252e91a945d6","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0a9a0e8a97da70a0336c9115178aaf1be29bcfb1","Linux >= 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 520e345ffe05aabef1db82beda4288afb1757ff2","Linux < 6.18.51","Linux < 7.2.5","Linux (all versions)"],"published":"2026-09-16","updated":"2026-09-17","sourceUpdated":"2026-09-17T10:17:03.883","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-89808","references":[{"url":"https://git.kernel.org/stable/c/0a9a0e8a97da70a0336c9115178aaf1be29bcfb1","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/520e345ffe05aabef1db82beda4288afb1757ff2","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"},{"url":"https://git.kernel.org/stable/c/ae806a95b28fcecb913430cfa45a252e91a945d6","label":"416baaa9-dc9f-4396-8d5f-8c081fb06d67"}],"tags":["nvd","cve.org"],"ingestedAt":"2026-09-16T10:53:54.007Z","epss":0.00161,"epssPercentile":0.05767,"slug":"CVE-2026-89808","body":"## Overview\n\nIn the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram\n\nWhen migration vm range is hole at cpu side(MIGRATE_PFN_MIGRATE set +\nMIGRATE_PFN_VALID unset) driver still allocates device pages. There is no\ndma map of src pages and migration. j is 0 and svm_migrate_copy_memory_gart()\nwill return an uninitialized r. That can trigger out_free_vram_pages to drop\nall VRAM just set up.\n\nInitialize r and only call the last svm_migrate_copy_memory_gart if j > 0.\n\nCurrent code postponed the last page to the final copy. This patch flushes on\nthe last page when reach to the end of current drm_buddy_block; avoids another\nsvm_migrate_copy_memory_gart.\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":205241,"id":"CVE-2026-89808","ts":1789570705890,"field":"cvss","old":null,"new":"7.8"},{"seq":205240,"id":"CVE-2026-89808","ts":1789570705890,"field":"severity","old":"none","new":"high"}]}