{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-89502","assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","state":"PUBLISHED","assignerShortName":"Linux","dateReserved":"2026-09-11T19:38:34.715Z","datePublished":"2026-09-11T19:43:50.700Z","dateUpdated":"2026-09-11T19:43:50.700Z"},"containers":{"cna":{"providerMetadata":{"orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux","dateUpdated":"2026-09-11T19:43:50.700Z"},"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nring-buffer: Free cpu_buffer::free_page with subbuf_order\n\nWhen sub-buffers use an order greater than 0, cpu_buffer->free_page is\nallocated with subbuf_order. Use the correct order for\ncpu_buffer->free_page."}],"affected":[{"product":"Linux","vendor":"Linux","defaultStatus":"unaffected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/ring_buffer.c"],"versions":[{"version":"f9b94daa542a8d2532f0930f01cd9aec2d19621b","lessThan":"77275ccea06eaf297e8e6ac3fc830cb72086379a","status":"affected","versionType":"git"},{"version":"f9b94daa542a8d2532f0930f01cd9aec2d19621b","lessThan":"8c1ecdcdea738efe0494af908f12c0ae3a97fffa","status":"affected","versionType":"git"},{"version":"f9b94daa542a8d2532f0930f01cd9aec2d19621b","lessThan":"81063bbb16c4fcf0136c9117d5e49d3621dd6a1e","status":"affected","versionType":"git"},{"version":"f9b94daa542a8d2532f0930f01cd9aec2d19621b","lessThan":"234b1a72e9706fe20c08c96f4374ec8e83b934cb","status":"affected","versionType":"git"}]},{"product":"Linux","vendor":"Linux","defaultStatus":"affected","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","programFiles":["kernel/trace/ring_buffer.c"],"versions":[{"version":"6.8","status":"affected"},{"version":"0","lessThan":"6.8","status":"unaffected","versionType":"semver"},{"version":"6.12.109","lessThanOrEqual":"6.12.*","status":"unaffected","versionType":"semver"},{"version":"6.18.50","lessThanOrEqual":"6.18.*","status":"unaffected","versionType":"semver"},{"version":"7.2.4","lessThanOrEqual":"7.2.*","status":"unaffected","versionType":"semver"},{"version":"7.3-rc1","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":"6.12.109"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"6.18.50"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.2.4"},{"vulnerable":true,"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionStartIncluding":"6.8","versionEndExcluding":"7.3-rc1"}]}]}],"references":[{"url":"https://git.kernel.org/stable/c/77275ccea06eaf297e8e6ac3fc830cb72086379a"},{"url":"https://git.kernel.org/stable/c/8c1ecdcdea738efe0494af908f12c0ae3a97fffa"},{"url":"https://git.kernel.org/stable/c/81063bbb16c4fcf0136c9117d5e49d3621dd6a1e"},{"url":"https://git.kernel.org/stable/c/234b1a72e9706fe20c08c96f4374ec8e83b934cb"}],"title":"ring-buffer: Free cpu_buffer::free_page with subbuf_order","x_generator":{"engine":"bippy-1.2.0"}}}}