{"schema":"threatline.record/2","record":{"id":"CVE-2026-99160","aliases":[],"summary":"ring-buffer: Do not show buffer_meta for CPUs without a buffer","details":"In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Do not show buffer_meta for CPUs without a buffer\n\nThe per_cpu/cpuN/buffer_meta files are created for every possible CPU,\nbut buffer->buffers[cpu] is only allocated once that CPU comes online.\nReading the file of a CPU that never came online dereferences a NULL\ncpu_buffer in rbm_start().\n\nFail the open with -ENODEV when the CPU has no buffer, as the other\nper CPU ring buffer interfaces do.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99160","source_modified_at":"2026-10-28T10:35:13.341Z","fetched_at":"2026-10-28T15:55:58.673066Z","product":"Linux","vendor":"Linux","versions":[{"version":"950032ffcee7a43c960951940059afc5a2bdbcbc","lessThan":"8512d0312cc0ea83ca4511b164c29a138bbb0c21","status":"affected","versionType":"git"},{"version":"950032ffcee7a43c960951940059afc5a2bdbcbc","lessThan":"ae670c1a24fb5ffb167f26358cf47a5f0abbd670","status":"affected","versionType":"git"},{"version":"950032ffcee7a43c960951940059afc5a2bdbcbc","lessThan":"3f23cae09a4677a3f7c163a68388512cb231ff22","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99160","source_modified_at":"2026-10-28T10:35:13.341Z","fetched_at":"2026-10-28T15:55:58.673066Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.12","status":"affected"},{"version":"0","lessThan":"6.12","status":"unaffected","versionType":"semver"},{"version":"6.18.59","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.13","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}],"defaultStatus":"affected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99160","source_modified_at":"2026-10-28T10:35:13.341Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"Linux","ecosystem":null},"version":"8512d0312cc0ea83ca4511b164c29a138bbb0c21","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-99160","source_modified_at":"2026-10-28T10:35:13.341Z","fetched_at":"2026-10-28T15:55:58.673066Z","package":{"name":"Linux","ecosystem":null},"version":"3f23cae09a4677a3f7c163a68388512cb231ff22","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T10:35:13.341Z","modified_at":"2026-10-28T10:35:13.341Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-99160","fetched_at":"2026-10-28T15:55:58.673066Z","source_modified_at":"2026-10-28T10:35:13.341Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/8512d0312cc0ea83ca4511b164c29a138bbb0c21"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/ae670c1a24fb5ffb167f26358cf47a5f0abbd670"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3f23cae09a4677a3f7c163a68388512cb231ff22"}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":"product","confidence":"heuristic","reviewed":false},"change_timestamp":"2026-10-28T10:35:13.341Z","content_hash":"31dc0b0a08b9e4ac950f2f0e8f02922c8eb0024d5f16007f9f485b2561a7e2c1"}}