{"id":"CVE-2026-65584","kind":"vulnerability","aliases":["CVE-2026-65584"],"related":[],"title":"Linux kernel GPU driver: stack overflow lets local user crash system","description":"Software installed and run as a non-privileged user may conduct improper GPU system calls causing a stack overflow in the kernel. The overflow occurs when processing resolved Linux/Android fence synchronization checkpoints, while user checkpoints are excluded from the stack array. Successful exploitation can cause kernel memory corruption and typically results in a denial-of-service condition through a kernel crash.\n\n\n\nThe code vulnerability is a buffer write beyond the allocated array on the stack caused by copying excessive data from an internal buffer.","summary":"A non-privileged local program can trigger a stack overflow in the kernel while processing GPU fence synchronization checkpoints. Successful exploitation corrupts kernel memory and typically causes a kernel crash, a denial of service.","severity":"unknown","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[],"ecosystems":[],"tags":["gpu-driver","infrastructure","kernel","linux"],"not_affected_if":["no-untrusted-local-users"],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-30T02:17:09+00:00","first_seen_at":"2026-10-30T02:28:06+00:00","triaged_at":"2026-10-30T02:30:13+00:00","updated_at":"2026-10-30T02:30:13+00:00","category":"infrastructure","confidence":0.5,"triage":{"at":"2026-10-30T02:30:13Z","model":"claude-haiku-5-5","output":{"fix":"unknown","reach":"local","title":"Linux kernel GPU driver: stack overflow lets local user crash system","impact":"medium","summary":"A non-privileged local program can trigger a stack overflow in the kernel while processing GPU fence synchronization checkpoints. Successful exploitation corrupts kernel memory and typically causes a kernel crash, a denial of service.","audience":"businesses","category":"infrastructure","nicknames":[],"who_cares":["linux","gpu-driver","kernel"],"confidence":0.5,"fix_status":"unknown","needs_auth":"yes","worst_case":"local code crashes the kernel and may corrupt kernel memory","analyst_note":"Identify the affected GPU driver (likely Imagination or similar Linux/Android GPU driver), affected version ranges and fixed versions from the NVD entry or vendor advisory.","how_to_check":"unknown","plain_action":"","needs_analyst":true,"not_affected_if":["no-untrusted-local-users"],"who_is_affected":"The sources do not name the affected GPU driver or kernel versions. The flaw is in kernel-side GPU system call handling reached by unprivileged user software, so systems with that GPU driver loaded and local untrusted users or code are the ones to look at. unknown","user_interaction":"no","needs_special_setup":"unknown","severity_if_unknown":"unknown"},"cost_usd":0.000659,"input_tokens":4186,"output_tokens":481,"severity_before":"unknown"},"analyst_status":null,"analyst_note":null,"search":"'-2026':13A,16A '-65584':14A,17A 'alloc':131C 'array':100C,132C 'beyond':129C 'buffer':127C,144C 'call':74C 'caus':51B,75C,104C,136C 'checkpoint':43B,91C,94C 'code':123C 'condit':117C 'conduct':70C 'copi':138C 'corrupt':46B,107C 'crash':10A,54B,121C 'cve':12A,15A 'data':140C 'denial':56B,114C 'denial-of-servic':113C 'driver':4A,20B 'excess':139C 'exclud':96C 'exploit':45B,102C 'fenc':41B,89C 'gpu':3A,19B,40B,72C 'gpu-driv':18B 'improp':71C 'infrastructur':21B 'instal':60C 'intern':143C 'kernel':2A,22B,37B,47B,53B,81C,105C,120C 'let':7A 'linux':1A,23B 'linux/android':88C 'local':8A,28B 'may':69C 'memori':48B,106C 'non':26B,66C 'non-privileg':25B,65C 'occur':84C 'overflow':6A,34B,78C,83C 'privileg':27B,67C 'process':39B,86C 'program':29B 'resolv':87C 'result':110C 'run':62C 'servic':58B,116C 'softwar':59C 'stack':5A,33B,77C,99C,135C 'success':44B,101C 'synchron':42B,90C 'system':11A,73C 'trigger':31B 'typic':50B,109C 'user':9A,68C,93C 'vulner':124C 'write':128C","nicknames":[],"mitigations":[],"who_affected":"The sources do not name the affected GPU driver or kernel versions. The flaw is in kernel-side GPU system call handling reached by unprivileged user software, so systems with that GPU driver loaded and local untrusted users or code are the ones to look at. unknown","tier":"C","verified":{},"analyst_revisit_at":null,"fix_status":"none","audience":"businesses","plain_action":null,"first_public_at":"2026-10-30T02:17:09+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"nvd","external_id":"CVE-2026-65584","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-65584","severity":null,"published_at":"2026-10-30T02:17:09+00:00","modified_at":"2026-10-30T02:17:09+00:00","first_seen_at":"2026-10-30T02:28:06+00:00","fetched_at":"2026-10-30T02:28:06+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"}