{"api_version":"1","generated_at":"2026-04-23T11:35:17+00:00","cve":"CVE-2026-23423","urls":{"html":"https://cve.report/CVE-2026-23423","api":"https://cve.report/api/cve/CVE-2026-23423.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-23423","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-23423"},"summary":{"title":"btrfs: free pages on error in btrfs_uring_read_extent()","description":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: free pages on error in btrfs_uring_read_extent()\n\nIn this function the 'pages' object is never freed in the hopes that it is\npicked up by btrfs_uring_read_finished() whenever that executes in the\nfuture. But that's just the happy path. Along the way previous\nallocations might have gone wrong, or we might not get -EIOCBQUEUED from\nbtrfs_encoded_read_regular_fill_pages(). In all these cases, we go to a\ncleanup section that frees all memory allocated by this function without\nassuming any deferred execution, and this also needs to happen for the\n'pages' allocation.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-04-03 14:16:28","updated_at":"2026-04-03 16:10:23"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/d4f210de01eaccac61eee657f676045ef9771d07","name":"https://git.kernel.org/stable/c/d4f210de01eaccac61eee657f676045ef9771d07","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3f501412f2079ca14bf68a18d80a2b7a823f1f64","name":"https://git.kernel.org/stable/c/3f501412f2079ca14bf68a18d80a2b7a823f1f64","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/628895890b0c9ac9129129e89455da7db95ba343","name":"https://git.kernel.org/stable/c/628895890b0c9ac9129129e89455da7db95ba343","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-23423","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-23423","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 34310c442e175f286b4c06ab5caa4e0b267ea31c d4f210de01eaccac61eee657f676045ef9771d07 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 34310c442e175f286b4c06ab5caa4e0b267ea31c 628895890b0c9ac9129129e89455da7db95ba343 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 34310c442e175f286b4c06ab5caa4e0b267ea31c 3f501412f2079ca14bf68a18d80a2b7a823f1f64 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 6.13","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.13 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.17 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.19.7 6.19.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0-rc3 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"23423","cve":"CVE-2026-23423","epss":"0.000170000","percentile":"0.040880000","score_date":"2026-04-07","updated_at":"2026-04-08 00:03:39"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["fs/btrfs/ioctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"d4f210de01eaccac61eee657f676045ef9771d07","status":"affected","version":"34310c442e175f286b4c06ab5caa4e0b267ea31c","versionType":"git"},{"lessThan":"628895890b0c9ac9129129e89455da7db95ba343","status":"affected","version":"34310c442e175f286b4c06ab5caa4e0b267ea31c","versionType":"git"},{"lessThan":"3f501412f2079ca14bf68a18d80a2b7a823f1f64","status":"affected","version":"34310c442e175f286b4c06ab5caa4e0b267ea31c","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["fs/btrfs/ioctl.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"6.13"},{"lessThan":"6.13","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.17","versionType":"semver"},{"lessThanOrEqual":"6.19.*","status":"unaffected","version":"6.19.7","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.0-rc3","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.17","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.19.7","versionStartIncluding":"6.13","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0-rc3","versionStartIncluding":"6.13","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: free pages on error in btrfs_uring_read_extent()\n\nIn this function the 'pages' object is never freed in the hopes that it is\npicked up by btrfs_uring_read_finished() whenever that executes in the\nfuture. But that's just the happy path. Along the way previous\nallocations might have gone wrong, or we might not get -EIOCBQUEUED from\nbtrfs_encoded_read_regular_fill_pages(). In all these cases, we go to a\ncleanup section that frees all memory allocated by this function without\nassuming any deferred execution, and this also needs to happen for the\n'pages' allocation."}],"providerMetadata":{"dateUpdated":"2026-04-03T13:24:31.966Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/d4f210de01eaccac61eee657f676045ef9771d07"},{"url":"https://git.kernel.org/stable/c/628895890b0c9ac9129129e89455da7db95ba343"},{"url":"https://git.kernel.org/stable/c/3f501412f2079ca14bf68a18d80a2b7a823f1f64"}],"title":"btrfs: free pages on error in btrfs_uring_read_extent()","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-23423","datePublished":"2026-04-03T13:24:31.966Z","dateReserved":"2026-01-13T15:37:46.015Z","dateUpdated":"2026-04-03T13:24:31.966Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-04-03 14:16:28","lastModifiedDate":"2026-04-03 16:10:23","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"23423","Ordinal":"1","Title":"btrfs: free pages on error in btrfs_uring_read_extent()","CVE":"CVE-2026-23423","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"23423","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\nbtrfs: free pages on error in btrfs_uring_read_extent()\n\nIn this function the 'pages' object is never freed in the hopes that it is\npicked up by btrfs_uring_read_finished() whenever that executes in the\nfuture. But that's just the happy path. Along the way previous\nallocations might have gone wrong, or we might not get -EIOCBQUEUED from\nbtrfs_encoded_read_regular_fill_pages(). In all these cases, we go to a\ncleanup section that frees all memory allocated by this function without\nassuming any deferred execution, and this also needs to happen for the\n'pages' allocation.","Type":"Description","Title":"btrfs: free pages on error in btrfs_uring_read_extent()"}]}}}