{ "schemaVersion": 1, "attribution": [ { "source": "CISA Known Exploited Vulnerabilities", "url": "https://www.cisa.gov/known-exploited-vulnerabilities-catalog", "licence": "US government work" }, { "source": "GitHub Advisory Database", "url": "https://github.com/advisories", "licence": "CC BY 4.0" }, { "source": "Have I Been Pwned", "url": "https://haveibeenpwned.com/", "licence": "CC BY 4.0" }, { "source": "CVE Program (CVE records)", "url": "https://www.cve.org/Legal/TermsOfUse", "licence": "CVE Terms of Use", "notice": "Copyright © 1999-2026, The MITRE Corporation. CVE is a trademark and the CVE logo is a registered trademark of The MITRE Corporation.", "terms": "CVE Usage: MITRE hereby grants you a perpetual, worldwide, non-exclusive, no-charge, royalty-free, irrevocable copyright license to reproduce, prepare derivative works of, publicly display, publicly perform, sublicense, and distribute Common Vulnerabilities and Exposures (CVE™). Any copy you make for such purposes is authorized provided that you reproduce MITRE's copyright designation and this license in any such copy." }, { "source": "FIRST EPSS", "url": "https://www.first.org/epss/", "licence": "free to use; FIRST requests attribution" } ], "record": { "id": "CVE-2022-50126", "sourceURL": "https://www.cve.org/CVERecord?id=CVE-2022-50126", "idYear": 2022, "status": "PUBLISHED", "publishedAt": "2025-06-18T11:02:53.672Z", "updatedAt": "2026-05-11T19:13:20.780Z", "importedAt": "2026-10-24T01:56:49.724Z", "snapshot": { "id": "cve_2026-10-24_midnight_baseline", "at": "2026-10-24T00:00:00.000Z", "source": "https://github.com/CVEProject/cvelistV5/releases/tag/cve_2026-10-24_0100Z" }, "facts": { "title": "jbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted", "summary": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: fix assertion 'jh->b_frozen_data == NULL' failure when journal aborted\n\nFollowing process will fail assertion 'jh->b_frozen_data == NULL' in\njbd2_journal_dirty_metadata():\n\n jbd2_journal_commit_transaction\nunlink(dir/a)\n jh->b_transaction = trans1\n jh->b_jlist = BJ_Metadata\n journal->j_running_transaction = NULL\n trans1->t_state = T_COMMIT\nunlink(dir/b)\n handle->h_trans = trans2\n do_get_write_access\n jh->b_modified = 0\n jh->b_frozen_data = frozen_buffer\n jh->b_next_transaction = trans2\n jbd2_journal_dirty_metadata\n is_handle_aborted\n is_journal_aborted // return false\n\n --> jbd2 abort <--\n\n while (commit_transaction->t_buffers)\n if (is_journal_aborted)\n jbd2_journal_refile_buffer\n __jbd2_journal_refile_buffer\n WRITE_ONCE(jh->b_transaction,\n\t\t\t\t\t\tjh->b_next_transaction)\n WRITE_ONCE(jh->b_next_transaction, NULL)\n __jbd2_journal_file_buffer(jh, BJ_Reserved)\n J_ASSERT_JH(jh, jh->b_frozen_data == NULL) // assertion failure !\n\nThe reproducer (See detail in [Link]) reports:\n ------------[ cut here ]------------\n kernel BUG at fs/jbd2/transaction.c:1629!\n invalid opcode: 0000 [#1] PREEMPT SMP\n CPU: 2 PID: 584 Comm: unlink Tainted: G W\n 5.19.0-rc6-00115-g4a57a8400075-dirty #697\n RIP: 0010:jbd2_journal_dirty_metadata+0x3c5/0x470\n RSP: 0018:ffffc90000be7ce0 EFLAGS: 00010202\n Call Trace:\n \n __ext4_handle_dirty_metadata+0xa0/0x290\n ext4_handle_dirty_dirblock+0x10c/0x1d0\n ext4_delete_entry+0x104/0x200\n __ext4_unlink+0x22b/0x360\n ext4_unlink+0x275/0x390\n vfs_unlink+0x20b/0x4c0\n do_unlinkat+0x42f/0x4c0\n __x64_sys_unlink+0x37/0x50\n do_syscall_64+0x35/0x80\n\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.", "affected": [ { "vendor": "Linux", "product": "Linux", "defaultStatus": "unaffected", "versions": [ { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "0f61c6dc4b714be9d79cf0782ca02ba01c1b7ac3" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "6073389db83b903678a0920554fa19f5bdc51c48" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "fa5b65d39332fef7a11ae99cb1f0696012a61527" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "f7161d0da975adc234161cd0641d0e484f5ce375" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "e62f79827784f56499a50ea2e893c98317b5407b" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "731c1662d838fe954c6759e3ee43229b0d928fe4" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "ddd896792e1718cb84c96f3e618270589b6886dc" }, { "version": "470decc613ab2048b619a01028072d932d9086ee", "status": "affected", "versionType": "git", "lessThan": "4a734f0869f970b8a9b65062ea40b09a5da9dba8" } ] }, { "vendor": "Linux", "product": "Linux", "defaultStatus": "affected", "versions": [ { "version": "2.6.19", "status": "affected" }, { "version": "0", "status": "unaffected", "versionType": "semver", "lessThan": "2.6.19" }, { "version": "4.14.291", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.14.*" }, { "version": "4.19.256", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "4.19.*" }, { "version": "5.4.211", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.4.*" }, { "version": "5.10.137", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.10.*" }, { "version": "5.15.61", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.15.*" }, { "version": "5.18.18", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.18.*" }, { "version": "5.19.2", "status": "unaffected", "versionType": "semver", "lessThanOrEqual": "5.19.*" }, { "version": "6.0", "status": "unaffected", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*" } ] } ] } } }