{ "document": { "aggregate_severity": { "text": "Important" }, "category": "csaf_vex", "csaf_version": "2.0", "distribution": { "text": "TuxCare License Agreement", "tlp": { "label": "WHITE", "url": "https://www.first.org/tlp/" } }, "lang": "en", "notes": [ { "category": "legal_disclaimer", "text": "This content is licensed under the Creative Commons Attribution 4.0 International License (https://creativecommons.org/licenses/by/4.0/). If you distribute this content, or a modified version of it, you must provide attribution to Cloud Linux Inc. and provide a link to the original.", "title": "Terms of Use" } ], "publisher": { "category": "vendor", "contact_details": "https://tuxcare.com/contact/", "name": "TuxCare", "namespace": "https://tuxcare.com/" }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://security.tuxcare.com/csaf/v2/els_os/centos8.4els/vex/2022/cve-2022-50126-els_os-centos8_4els.json" } ], "title": "Security update on CVE-2022-50126", "tracking": { "current_release_date": "2025-12-23T22:15:38Z", "generator": { "date": "2025-12-23T22:15:38Z", "engine": { "name": "pyCSAF" } }, "id": "CVE-2022-50126-ELS_OS-CENTOS8.4ELS", "initial_release_date": "2022-01-01T00:00:00Z", "revision_history": [ { "date": "2022-01-01T00:00:00Z", "number": "1", "summary": "Initial version" }, { "date": "2025-08-07T07:55:41Z", "number": "2", "summary": "Official Publication" }, { "date": "2025-12-23T22:15:38Z", "number": "3", "summary": "Update document" } ], "status": "final", "version": "2" } }, "product_tree": { "branches": [ { "branches": [ { "branches": [ { "category": "product_name", "name": "Community Enterprise Operating System 8.4", "product": { "name": "Community Enterprise Operating System 8.4", "product_id": "CentOS-8.4", "product_identification_helper": { "cpe": "cpe:2.3:o:centos:centos:8.4:*:*:*:*:*:*:*" } } } ], "category": "product_family", "name": "Community Enterprise Operating System" } ], "category": "vendor", "name": "Red Hat, Inc." }, { "branches": [ { "branches": [ { "category": "product_version", "name": "kernel-debug-modules-extra-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "product": { "name": "kernel-debug-modules-extra-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "product_id": "kernel-debug-modules-extra-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "product_identification_helper": { "purl": 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Community Enterprise Operating System 8.4", "product_id": "CentOS-8.4:kernel-ipaclones-internal-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64" }, "product_reference": "kernel-ipaclones-internal-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "relates_to_product_reference": "CentOS-8.4" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64 as a component of Community Enterprise Operating System 8.4", "product_id": "CentOS-8.4:kernel-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64" }, "product_reference": "kernel-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "relates_to_product_reference": "CentOS-8.4" }, { "category": "default_component_of", "full_product_name": { "name": "kernel-headers-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64 as a component of Community Enterprise Operating System 8.4", "product_id": "CentOS-8.4:kernel-headers-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64" }, "product_reference": "kernel-headers-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "relates_to_product_reference": "CentOS-8.4" }, { "category": "default_component_of", "full_product_name": { "name": "perf-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64 as a component of Community Enterprise Operating System 8.4", "product_id": "CentOS-8.4:perf-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64" }, "product_reference": "perf-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "relates_to_product_reference": "CentOS-8.4" } ] }, "vulnerabilities": [ { "cve": "CVE-2022-50126", "cwe": { "id": "CWE-617", "name": "Reachable Assertion" }, "notes": [ { "category": "description", "text": "In the Linux kernel, the following vulnerability has been resolved:\njbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted\nFollowing process will fail assertion 'jh->b_frozen_data == NULL' in\njbd2_journal_dirty_metadata():\njbd2_journal_commit_transaction\nunlink(dir/a)\njh->b_transaction = trans1\njh->b_jlist = BJ_Metadata\njournal->j_running_transaction = NULL\ntrans1->t_state = T_COMMIT\nunlink(dir/b)\nhandle->h_trans = trans2\ndo_get_write_access\njh->b_modified = 0\njh->b_frozen_data = frozen_buffer\njh->b_next_transaction = trans2\njbd2_journal_dirty_metadata\nis_handle_aborted\nis_journal_aborted // return false\n--> jbd2 abort <--\nwhile (commit_transaction->t_buffers)\nif (is_journal_aborted)\njbd2_journal_refile_buffer\n__jbd2_journal_refile_buffer\nWRITE_ONCE(jh->b_transaction,\njh->b_next_transaction)\nWRITE_ONCE(jh->b_next_transaction, NULL)\n__jbd2_journal_file_buffer(jh, BJ_Reserved)\nJ_ASSERT_JH(jh, jh->b_frozen_data == NULL) // assertion failure !\nThe reproducer (See detail in [Link]) reports:\n------------[ cut here ]------------\nkernel BUG at fs/jbd2/transaction.c:1629!\ninvalid opcode: 0000 [#1] PREEMPT SMP\nCPU: 2 PID: 584 Comm: unlink Tainted: G W\n5.19.0-rc6-00115-g4a57a8400075-dirty #697\nRIP: 0010:jbd2_journal_dirty_metadata+0x3c5/0x470\nRSP: 0018:ffffc90000be7ce0 EFLAGS: 00010202\nCall Trace:\n\n__ext4_handle_dirty_metadata+0xa0/0x290\next4_handle_dirty_dirblock+0x10c/0x1d0\next4_delete_entry+0x104/0x200\n__ext4_unlink+0x22b/0x360\next4_unlink+0x275/0x390\nvfs_unlink+0x20b/0x4c0\ndo_unlinkat+0x42f/0x4c0\n__x64_sys_unlink+0x37/0x50\ndo_syscall_64+0x35/0x80\nAfter journal aborting, __jbd2_journal_refile_buffer() is executed with\nholding @jh->b_state_lock, we can fix it by moving 'is_handle_aborted()'\ninto the area protected by @jh->b_state_lock.", "title": "Vulnerability description" }, { "category": "general", "text": "The CVSS score(s) listed for this vulnerability do not reflect the associated product's status, and are included for informational purposes to better understand the severity of this vulnerability.", "title": "CVSS score applicability" } ], "product_status": { "fixed": [ "CentOS-8.4:kernel-debug-modules-extra-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:python3-perf-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-modules-internal-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-modules-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-tools-libs-devel-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-core-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:bpftool-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-debug-modules-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-debug-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-debug-core-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-modules-extra-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-devel-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-debug-devel-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-debug-modules-internal-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-tools-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-tools-libs-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-selftests-internal-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-cross-headers-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-ipaclones-internal-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-headers-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:perf-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64" ] }, "references": [ { "category": "self", "summary": "Canonical URL", "url": "https://cve.tuxcare.com/els/cve/CVE-2022-50126" } ], "release_date": "2025-06-18T00:00:00", "scores": [ { "cvss_v3": { "attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 5.5, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "version": "3.1" }, "products": [ "CentOS-8.4:kernel-debug-modules-extra-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:python3-perf-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-modules-internal-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-modules-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-tools-libs-devel-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-core-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:bpftool-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-debug-modules-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-debug-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-debug-core-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", "CentOS-8.4:kernel-modules-extra-0:4.18.0-305.25.1.el8_4.tuxcare.els30.x86_64", 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