{"id":"CVE-2026-98898","kind":"vulnerability","aliases":["CVE-2026-98898"],"related":[],"title":"Linux kernel: AMD SI GPU thermal work scheduled on uninitialized queue","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amd/pm/si: Don't schedule thermal work when queue isn't initialized\n\nWhen DPM is turned off with the amdgpu.dpm=0 module parameter,\nthe thermal work queue isn't initialized so we shouldn't\nschedule any work on it.\n\n(cherry picked from commit bd018d36171a695952c6d391471c279c9e05c8b2)","summary":"With DPM disabled via the amdgpu.dpm=0 module parameter, the AMD Southern Islands driver could schedule thermal work on a work queue that was never initialized. The sources describe a fix that skips scheduling in that case; they do not describe an attacker-reachable impact.","severity":"unknown","cvss":null,"epss":0.00215,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["amd-si-gpu","amdgpu","infrastructure","linux-kernel"],"not_affected_if":["default-config","no-si-gpu"],"how_to_check":"- unknown","fix":"- Update to a Linux kernel release that includes upstream commit bd018d36171a695952c6d391471c279c9e05c8b2 (version unknown from sources)","status":"open","published_at":"2026-10-23T12:18:23+00:00","first_seen_at":"2026-10-23T21:57:33+00:00","triaged_at":"2026-10-25T04:59:55+00:00","updated_at":"2026-10-25T12:38:50+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-25T04:59:55Z","model":"claude-haiku-5-5","output":{"fix":"- Update to a Linux kernel release that includes upstream commit bd018d36171a695952c6d391471c279c9e05c8b2 (version unknown from sources)","reach":"local","title":"Linux kernel: AMD SI GPU thermal work scheduled on uninitialized queue","impact":"low","summary":"With DPM disabled via the amdgpu.dpm=0 module parameter, the AMD Southern Islands driver could schedule thermal work on a work queue that was never initialized. The sources describe a fix that skips scheduling in that case; they do not describe an attacker-reachable impact.","category":"infrastructure","nicknames":[],"who_cares":["linux-kernel","amdgpu","amd-si-gpu"],"confidence":0.5,"needs_auth":"unknown","worst_case":"unknown; the sources describe a work-queue fault, not a confirmed attacker outcome","analyst_note":"","how_to_check":"- unknown","needs_analyst":false,"not_affected_if":["default-config","no-si-gpu"],"who_is_affected":"Systems running a Linux kernel with the amdgpu driver for AMD Southern Islands (SI) GPUs, where DPM is turned off with the amdgpu.dpm=0 module parameter. Systems without SI-generation AMD GPUs or with DPM enabled are not described as affected.","user_interaction":"no","needs_special_setup":"yes","severity_if_unknown":"low"},"cost_usd":0.000587,"input_tokens":3363,"output_tokens":502,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-98898':14A,17A '0':33B,102C 'amd':3A,19B,37B 'amd-si-gpu':18B 'amdgpu':22B 'amdgpu.dpm':32B,101C 'attack':70B 'attacker-reach':69B 'bd018d36171a695952c6d391471c279c9e05c8b2':125C 'case':63B 'cherri':121C 'commit':124C 'could':41B 'cve':12A,15A 'describ':55B,67B 'disabl':29B 'dpm':28B,95C 'driver':40B 'drm/amd/pm/si':83C 'fix':57B 'follow':78C 'gpu':5A,21B 'impact':72B 'infrastructur':23B 'initi':52B,93C,111C 'island':39B 'isn':91C,109C 'kernel':2A,26B,76C 'linux':1A,25B,75C 'linux-kernel':24B 'modul':34B,103C 'never':51B 'paramet':35B,104C 'pick':122C 'queue':11A,48B,90C,108C 'reachabl':71B 'resolv':82C 'schedul':8A,42B,60B,86C,116C 'shouldn':114C 'si':4A,20B 'skip':59B 'sourc':54B 'southern':38B 'thermal':6A,43B,87C,106C 'turn':97C 'uniniti':10A 'via':30B 'vulner':79C 'work':7A,44B,47B,88C,107C,118C","nicknames":[],"mitigations":[],"who_affected":"Systems running a Linux kernel with the amdgpu driver for AMD Southern Islands (SI) GPUs, where DPM is turned off with the amdgpu.dpm=0 module parameter. Systems without SI-generation AMD GPUs or with DPM enabled are not described as affected.","tier":"C","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-23T12:18:23+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-98898","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-98898","severity":null,"published_at":"2026-10-23T12:18:23+00:00","modified_at":"2026-10-23T12:18:23+00:00","first_seen_at":"2026-10-23T21:57:33+00:00","fetched_at":"2026-10-23T22:29:03+00:00","note":null},{"source":"epss","external_id":"CVE-2026-98898","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98898","severity":null,"published_at":null,"modified_at":null,"first_seen_at":"2026-10-25T12:38:50+00:00","fetched_at":"2026-10-25T12:38:50+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}