{"id":"CVE-2026-53327","summary":"debugobjects: Do not fill_pool() if pi_blocked_on","details":"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.","modified":"2026-07-08T08:07:25.198431488Z","published":"2026-07-01T13:32:13.493Z","database_specific":{"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53327.json","cna_assigner":"Linux"},"references":[{"type":"WEB","url":"https://git.kernel.org/stable/c/33bee10644f8fff3b1a0187ad5ad34513e5e8e72"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3a408cae608d9c075dd3a9e5cfc03b3cb0726863"},{"type":"WEB","url":"https://git.kernel.org/stable/c/3f6a3b24ab7b9d51f6f4778254bef0e5847beb55"},{"type":"WEB","url":"https://git.kernel.org/stable/c/5f41161059fd0f1bbf18c90f3180e38cc45a14eb"},{"type":"WEB","url":"https://git.kernel.org/stable/c/8a680d54f1adf3e3aa815578684556716fda6f0c"},{"type":"WEB","url":"https://git.kernel.org/stable/c/a3383df76f0d7a597066df018409eb9e5e698064"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/53xxx/CVE-2026-53327.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-53327"},{"type":"PACKAGE","url":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git","events":[{"introduced":"4bedcc28469a24fe481a8a31b3584e6070457ddb"},{"fixed":"8a680d54f1adf3e3aa815578684556716fda6f0c"},{"fixed":"a3383df76f0d7a597066df018409eb9e5e698064"},{"fixed":"3f6a3b24ab7b9d51f6f4778254bef0e5847beb55"},{"fixed":"3a408cae608d9c075dd3a9e5cfc03b3cb0726863"},{"fixed":"33bee10644f8fff3b1a0187ad5ad34513e5e8e72"},{"fixed":"5f41161059fd0f1bbf18c90f3180e38cc45a14eb"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53327.json"}},{"package":{"name":"Kernel","ecosystem":"Linux"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"5.15.0"},{"fixed":"6.1.177"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.2.0"},{"fixed":"6.6.144"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.7.0"},{"fixed":"6.12.95"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.13.0"},{"fixed":"6.18.37"}]},{"type":"ECOSYSTEM","events":[{"introduced":"6.19.0"},{"fixed":"7.0.13"}]}],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-53327.json"}}],"schema_version":"1.7.5"}