{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-98032","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-25T10:19:56.070Z","datePublished":"2026-09-25T10:23:48.169Z","dateUpdated":"2026-09-25T10:23:48.169Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-25T10:23:48.169Z"},"descriptions":[{"lang":"en","value":"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."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/ring_buffer.h","kernel/trace/ring_buffer.c","kernel/trace/ring_buffer_benchmark.c","kernel/trace/trace.c","kernel/trace/trace.h"],"versions":[{"version":"bce761d757452ba5eb77e11fecc37a04b67494e7","lessThan":"75b37b8369778b69ce9738d1c97685a1615cb252","status":"affected","versionType":"git"},{"version":"bce761d757452ba5eb77e11fecc37a04b67494e7","lessThan":"dae8dda341d2d9034a90d59e8a7d502e1263813f","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["include/linux/ring_buffer.h","kernel/trace/ring_buffer.c","kernel/trace/ring_buffer_benchmark.c","kernel/trace/trace.c","kernel/trace/trace.h"],"versions":[{"version":"6.8","status":"affected"},{"version":"0","lessThan":"6.8","status":"unaffected","versionType":"semver"},{"version":"7.2.7","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc2","lessThanOrEqual":"*","status":"unaffected","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.2.7"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.3-rc2"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/75b37b8369778b69ce9738d1c97685a1615cb252"},{"url":"https://git.kernel.org/stable/c/dae8dda341d2d9034a90d59e8a7d502e1263813f"}],"title":"tracing: Fix subbuf resize races with trace_pipe_raw readers","x_generator":{"engine":"bippy-1.2.0"}}}}