{"api_version":"1","generated_at":"2026-07-04T18:18:59+00:00","cve":"CVE-2026-53327","urls":{"html":"https://cve.report/CVE-2026-53327","api":"https://cve.report/api/cve/CVE-2026-53327.json","docs":"https://cve.report/api","cve_org":"https://www.cve.org/CVERecord?id=CVE-2026-53327","nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-53327"},"summary":{"title":"debugobjects: Do not fill_pool() if pi_blocked_on","description":"In the Linux kernel, the following vulnerability has been resolved:\n\ndebugobjects: Do not fill_pool() if pi_blocked_on\n\nOn RT enabled kernels, fill_pool() ends up calling rtlock_lock(), which\nasserts if current::pi_blocked_on is set, because a task can obviously only\nblock on one lock as otherwise the priority inheritenace chain gets\ncorrupted.\n\nPrevent this by expanding the conditional to take current::pi_blocked_on\ninto account.","state":"PUBLISHED","assigner":"Linux","published_at":"2026-07-01 14:16:40","updated_at":"2026-07-04 12:17:01"},"problem_types":[],"metrics":[],"references":[{"url":"https://git.kernel.org/stable/c/3a408cae608d9c075dd3a9e5cfc03b3cb0726863","name":"https://git.kernel.org/stable/c/3a408cae608d9c075dd3a9e5cfc03b3cb0726863","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/a3383df76f0d7a597066df018409eb9e5e698064","name":"https://git.kernel.org/stable/c/a3383df76f0d7a597066df018409eb9e5e698064","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/33bee10644f8fff3b1a0187ad5ad34513e5e8e72","name":"https://git.kernel.org/stable/c/33bee10644f8fff3b1a0187ad5ad34513e5e8e72","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/3f6a3b24ab7b9d51f6f4778254bef0e5847beb55","name":"https://git.kernel.org/stable/c/3f6a3b24ab7b9d51f6f4778254bef0e5847beb55","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/5f41161059fd0f1bbf18c90f3180e38cc45a14eb","name":"https://git.kernel.org/stable/c/5f41161059fd0f1bbf18c90f3180e38cc45a14eb","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://git.kernel.org/stable/c/8a680d54f1adf3e3aa815578684556716fda6f0c","name":"https://git.kernel.org/stable/c/8a680d54f1adf3e3aa815578684556716fda6f0c","refsource":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","tags":[],"title":"","mime":"","httpstatus":"","archivestatus":"0"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-53327","name":"CVE Program record","refsource":"CVE.ORG","tags":["canonical"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53327","name":"NVD vulnerability detail","refsource":"NVD","tags":["canonical","analysis"]}],"affected":[{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4bedcc28469a24fe481a8a31b3584e6070457ddb 8a680d54f1adf3e3aa815578684556716fda6f0c git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4bedcc28469a24fe481a8a31b3584e6070457ddb a3383df76f0d7a597066df018409eb9e5e698064 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4bedcc28469a24fe481a8a31b3584e6070457ddb 3f6a3b24ab7b9d51f6f4778254bef0e5847beb55 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4bedcc28469a24fe481a8a31b3584e6070457ddb 3a408cae608d9c075dd3a9e5cfc03b3cb0726863 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4bedcc28469a24fe481a8a31b3584e6070457ddb 33bee10644f8fff3b1a0187ad5ad34513e5e8e72 git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 4bedcc28469a24fe481a8a31b3584e6070457ddb 5f41161059fd0f1bbf18c90f3180e38cc45a14eb git","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"affected 5.15","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 5.15 semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.1.177 6.1.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.6.144 6.6.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.12.95 6.12.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 6.18.37 6.18.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.0.13 7.0.* semver","platforms":[]},{"source":"CNA","vendor":"Linux","product":"Linux","version":"unaffected 7.1 * original_commit_for_fix","platforms":[]}],"timeline":[],"solutions":[],"workarounds":[],"exploits":[],"credits":[],"nvd_cpes":[],"vendor_comments":[],"enrichments":{"kev":null,"epss":{"cve_year":"2026","cve_id":"53327","cve":"CVE-2026-53327","epss":"0.001660000","percentile":"0.061380000","score_date":"2026-07-03","updated_at":"2026-07-04 00:02:18"},"legacy_qids":[]},"source_records":{"cve_program":{"containers":{"cna":{"affected":[{"defaultStatus":"unaffected","product":"Linux","programFiles":["lib/debugobjects.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"lessThan":"8a680d54f1adf3e3aa815578684556716fda6f0c","status":"affected","version":"4bedcc28469a24fe481a8a31b3584e6070457ddb","versionType":"git"},{"lessThan":"a3383df76f0d7a597066df018409eb9e5e698064","status":"affected","version":"4bedcc28469a24fe481a8a31b3584e6070457ddb","versionType":"git"},{"lessThan":"3f6a3b24ab7b9d51f6f4778254bef0e5847beb55","status":"affected","version":"4bedcc28469a24fe481a8a31b3584e6070457ddb","versionType":"git"},{"lessThan":"3a408cae608d9c075dd3a9e5cfc03b3cb0726863","status":"affected","version":"4bedcc28469a24fe481a8a31b3584e6070457ddb","versionType":"git"},{"lessThan":"33bee10644f8fff3b1a0187ad5ad34513e5e8e72","status":"affected","version":"4bedcc28469a24fe481a8a31b3584e6070457ddb","versionType":"git"},{"lessThan":"5f41161059fd0f1bbf18c90f3180e38cc45a14eb","status":"affected","version":"4bedcc28469a24fe481a8a31b3584e6070457ddb","versionType":"git"}]},{"defaultStatus":"affected","product":"Linux","programFiles":["lib/debugobjects.c"],"repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","vendor":"Linux","versions":[{"status":"affected","version":"5.15"},{"lessThan":"5.15","status":"unaffected","version":"0","versionType":"semver"},{"lessThanOrEqual":"6.1.*","status":"unaffected","version":"6.1.177","versionType":"semver"},{"lessThanOrEqual":"6.6.*","status":"unaffected","version":"6.6.144","versionType":"semver"},{"lessThanOrEqual":"6.12.*","status":"unaffected","version":"6.12.95","versionType":"semver"},{"lessThanOrEqual":"6.18.*","status":"unaffected","version":"6.18.37","versionType":"semver"},{"lessThanOrEqual":"7.0.*","status":"unaffected","version":"7.0.13","versionType":"semver"},{"lessThanOrEqual":"*","status":"unaffected","version":"7.1","versionType":"original_commit_for_fix"}]}],"cpeApplicability":[{"nodes":[{"cpeMatch":[{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.1.177","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.6.144","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.12.95","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"6.18.37","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.0.13","versionStartIncluding":"5.15","vulnerable":true},{"criteria":"cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*","versionEndExcluding":"7.1","versionStartIncluding":"5.15","vulnerable":true}],"negate":false,"operator":"OR"}]}],"descriptions":[{"lang":"en","value":"In the Linux kernel, the following vulnerability has been resolved:\n\ndebugobjects: Do not fill_pool() if pi_blocked_on\n\nOn RT enabled kernels, fill_pool() ends up calling rtlock_lock(), which\nasserts if current::pi_blocked_on is set, because a task can obviously only\nblock on one lock as otherwise the priority inheritenace chain gets\ncorrupted.\n\nPrevent this by expanding the conditional to take current::pi_blocked_on\ninto account."}],"providerMetadata":{"dateUpdated":"2026-07-04T11:51:05.892Z","orgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","shortName":"Linux"},"references":[{"url":"https://git.kernel.org/stable/c/8a680d54f1adf3e3aa815578684556716fda6f0c"},{"url":"https://git.kernel.org/stable/c/a3383df76f0d7a597066df018409eb9e5e698064"},{"url":"https://git.kernel.org/stable/c/3f6a3b24ab7b9d51f6f4778254bef0e5847beb55"},{"url":"https://git.kernel.org/stable/c/3a408cae608d9c075dd3a9e5cfc03b3cb0726863"},{"url":"https://git.kernel.org/stable/c/33bee10644f8fff3b1a0187ad5ad34513e5e8e72"},{"url":"https://git.kernel.org/stable/c/5f41161059fd0f1bbf18c90f3180e38cc45a14eb"}],"title":"debugobjects: Do not fill_pool() if pi_blocked_on","x_generator":{"engine":"bippy-1.2.0"}}},"cveMetadata":{"assignerOrgId":"416baaa9-dc9f-4396-8d5f-8c081fb06d67","assignerShortName":"Linux","cveId":"CVE-2026-53327","datePublished":"2026-07-01T13:32:13.493Z","dateReserved":"2026-06-09T07:44:35.398Z","dateUpdated":"2026-07-04T11:51:05.892Z","state":"PUBLISHED"},"dataType":"CVE_RECORD","dataVersion":"5.2"},"nvd":{"publishedDate":"2026-07-01 14:16:40","lastModifiedDate":"2026-07-04 12:17:01","problem_types":[],"metrics":[],"configurations":[]},"legacy_mitre":{"record":{"CveYear":"2026","CveId":"53327","Ordinal":"1","Title":"debugobjects: Do not fill_pool() if pi_blocked_on","CVE":"CVE-2026-53327","Year":"2026"},"notes":[{"CveYear":"2026","CveId":"53327","Ordinal":"1","NoteData":"In the Linux kernel, the following vulnerability has been resolved:\n\ndebugobjects: Do not fill_pool() if pi_blocked_on\n\nOn RT enabled kernels, fill_pool() ends up calling rtlock_lock(), which\nasserts if current::pi_blocked_on is set, because a task can obviously only\nblock on one lock as otherwise the priority inheritenace chain gets\ncorrupted.\n\nPrevent this by expanding the conditional to take current::pi_blocked_on\ninto account.","Type":"Description","Title":"debugobjects: Do not fill_pool() if pi_blocked_on"}]}}}