{"id":"CVE-2026-89976","summary":"accel/ethosu: fix job completion fence cleanup","details":"In the Linux kernel, the following vulnerability has been resolved:\n\naccel/ethosu: fix job completion fence cleanup\n\nethosu_ioctl_submit_job() allocates done_fence before validating buffer\nhandles. Errors after allocation call ethosu_job_err_cleanup(), which frees\nthe job but leaks the uninitialized fence.\n\nA scheduler dependency error also lets ethosu_job_run() return before\ndma_fence_init(). Normal cleanup then passes a zeroed refcount to\ndma_fence_put().\n\nRelease done_fence in the common cleanup path and use\ndma_fence_was_initialized() to distinguish initialized fences from raw\nallocations.\n\n[robh: also fix goto]","modified":"2026-09-17T03:47:20.107915500Z","published":"2026-09-16T10:32:54.518Z","database_specific":{"cna_assigner":"Linux","osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89976.json"},"references":[{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"},{"type":"WEB","url":"https://git.kernel.org/stable/c/2d2a3adc91950f9a18829dadc7317fb5180a15c5"},{"type":"WEB","url":"https://git.kernel.org/stable/c/b3e0f79af1f27339d8d2527c02cc3e8397c2f69f"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/89xxx/CVE-2026-89976.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-89976"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"5a5e9c0228e613f0ef2a58b9782d7c0ea8f1e58b"},{"fixed":"b3e0f79af1f27339d8d2527c02cc3e8397c2f69f"},{"fixed":"2d2a3adc91950f9a18829dadc7317fb5180a15c5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89976.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.2.5"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-89976.json"}}],"schema_version":"1.9.0"}