{"schema":"threatline.record/2","record":{"id":"CVE-2026-98032","aliases":[],"summary":"tracing: Fix subbuf resize races with trace_pipe_raw readers","details":"In the Linux kernel, the following vulnerability has been resolved:\n\ntracing: Fix subbuf resize races with trace_pipe_raw readers\n\nConcurrent subbuffer resizes may crash trace_pipe_raw readers or leak\nuninitialized memory to userspace due to stale size values.\n\nModify ring_buffer_alloc_read_page() to handle the resizing of an\nexisting buffer_data_read_page if necessary and add a new\nring_buffer_read_page_size(). This new function enables ring-buffer\nbuffer_data_read_page users to not call the racy\nring_buffer_subbuf_size_get(). This makes the spare_size member of\nftrace_buffer_info redundant.\n\nFinally, handle buffer_data_read_page/reader_page order discrepancy in\nring_buffer_read_page(). On a mismatch simply copy manually the data to\nthe buffer_data_read_page.","categories":["Operating systems"],"product":"Linux","vendor":"Linux","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98032","source_modified_at":"2026-10-21T12:54:06.279Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"bce761d757452ba5eb77e11fecc37a04b67494e7","lessThan":"574efd988d116bd56ac688ab2d64e06ba0da982a","status":"affected","versionType":"git"},{"version":"bce761d757452ba5eb77e11fecc37a04b67494e7","lessThan":"3f30b2cd4eba45c05f822f03f1b0f4077d6d4dc3","status":"affected","versionType":"git"},{"version":"bce761d757452ba5eb77e11fecc37a04b67494e7","lessThan":"75b37b8369778b69ce9738d1c97685a1615cb252","status":"affected","versionType":"git"},{"version":"bce761d757452ba5eb77e11fecc37a04b67494e7","lessThan":"dae8dda341d2d9034a90d59e8a7d502e1263813f","status":"affected","versionType":"git"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98032","source_modified_at":"2026-10-21T12:54:06.279Z","fetched_at":"2026-10-23T18:45:31.882637Z","product":"Linux","vendor":"Linux","versions":[{"version":"6.8","status":"affected"},{"version":"0","lessThan":"6.8","status":"unaffected","versionType":"semver"},{"version":"6.12.114","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.57","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.7","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-2026-98032","source_modified_at":"2026-10-21T12:54:06.279Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"574efd988d116bd56ac688ab2d64e06ba0da982a","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98032","source_modified_at":"2026-10-21T12:54:06.279Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"3f30b2cd4eba45c05f822f03f1b0f4077d6d4dc3","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-98032","source_modified_at":"2026-10-21T12:54:06.279Z","fetched_at":"2026-10-23T18:45:31.882637Z","package":{"name":"Linux","ecosystem":null},"version":"75b37b8369778b69ce9738d1c97685a1615cb252","basis":"first unaffected version stated in the CVE record"}],"cvss":null,"severity":null,"kev":{"listed":false},"epss":{"probability":0.00168,"percentile":0.05756,"score_date":"2026-10-23"},"published_at":"2026-09-25T10:23:48.169Z","modified_at":"2026-10-21T12:54:06.279Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-98032","fetched_at":"2026-10-23T18:45:31.882637Z","source_modified_at":"2026-10-21T12:54:06.279Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-98032","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://git.kernel.org/stable/c/574efd988d116bd56ac688ab2d64e06ba0da982a"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/3f30b2cd4eba45c05f822f03f1b0f4077d6d4dc3"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/75b37b8369778b69ce9738d1c97685a1615cb252"},{"source":"CVE List","url":"https://git.kernel.org/stable/c/dae8dda341d2d9034a90d59e8a7d502e1263813f"}],"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":"2026-10-21T12:54:06.279Z","content_hash":"ec486d9d7266f1b169abe12c59f7dc4acc13ed2032a709e761a872f6cc8de542"}}