{"cve":"CVE-2026-89812","nvd":{"published":"2026-09-16T11:16:46.380","modified":"2026-10-21T13:20:29.910","status":"Received","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndrm/amdgpu: force complete the MES ring fences on reset\n\nThe MES scheduler ring has no drm scheduler (no_scheduler = true), so it is\nskipped by the force-completion loop in amdgpu_device_pre_asic_reset(). It uses\na polling fence whose hw value lives in wb (GTT) memory and survives a MODE1\nreset, while fence_drv.sync_seq keeps advancing for every packet.\n\nWhen the reset is triggered because MES itself stopped responding, the\ntimed-out packets advance sync_seq past the last hw fence value MES wrote.\nAfter resume the first MES submission polls forever on a seq that is never\nwritten back, failing the resume and wedging the box on a second reset:\n\n  amdgpu: MES ring buffer is full.\n  amdgpu: *ERROR* ring gfx_0.0.0 test failed (-110)\n  amdgpu: resume of IP block <gfx_v11_0> failed -110\n  amdgpu: GPU reset end with ret = -110\n\nForce complete the MES scheduler ring fences together with the scheduler rings\nso their hw fence is realigned to sync_seq.\n\nv2: cover all XCCs (one scheduler ring each), not just mes.ring[0].","cvss_v4":null,"cvss_v3":null,"cwes":[],"references":["https://git.kernel.org/stable/c/48dc279c3010ac8f91b1845b2abb3a1e9943a0f5","https://git.kernel.org/stable/c/7d722821e2f626c4e34c8510f0ce1d6f10c77a3b","https://git.kernel.org/stable/c/c48d5a4d2863e56a6692ecb6cd6c32404f40cd0f","https://git.kernel.org/stable/c/ebe7542553d008e2285e0fbba0c63f0295a7e694"],"products":[],"source":"nvd","synced_at":"2026-10-22T16:41:11.231219466+00:00"},"epss":{"cve":"CVE-2026-89812","score":0.00209,"percentile":0.10917,"date":"2026-10-25"},"kev":null,"osv":[],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}