{"dataType": "CVE_RECORD", "dataVersion": "5.1", "cveMetadata": {"cveId": "CVE-2023-53526", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2025-10-01T11:39:39.407Z", "datePublished": "2025-10-01T11:46:11.862Z", "dateUpdated": "2025-10-01T11:46:11.862Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2025-10-01T11:46:11.862Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: check 'jh->b_transaction' before removing it from checkpoint\n\nFollowing process will corrupt ext4 image:\nStep 1:\njbd2_journal_commit_transaction\n __jbd2_journal_insert_checkpoint(jh, commit_transaction)\n // Put jh into trans1->t_checkpoint_list\n journal->j_checkpoint_transactions = commit_transaction\n // Put trans1 into journal->j_checkpoint_transactions\n\nStep 2:\ndo_get_write_access\n test_clear_buffer_dirty(bh) // clear buffer dirty\uff0cset jbd dirty\n __jbd2_journal_file_buffer(jh, transaction) // jh belongs to trans2\n\nStep 3:\ndrop_cache\n journal_shrink_one_cp_list\n jbd2_journal_try_remove_checkpoint\n if (!trylock_buffer(bh)) // lock bh, true\n if (buffer_dirty(bh)) // buffer is not dirty\n __jbd2_journal_remove_checkpoint(jh)\n // remove jh from trans1->t_checkpoint_list\n\nStep 4:\njbd2_log_do_checkpoint\n trans1 = journal->j_checkpoint_transactions\n // jh is not in trans1->t_checkpoint_list\n jbd2_cleanup_journal_tail(journal) // trans1 is done\n\nStep 5: Power cut, trans2 is not committed, jh is lost in next mounting.\n\nFix it by checking 'jh->b_transaction' before remove it from checkpoint."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/jbd2/checkpoint.c"], "versions": [{"version": "b832174b7f89df3ebab02f5b485d00127a0e1a6e", "lessThan": "ef5fea70e5915afd64182d155e72bfb4f275e1fc", "status": "affected", "versionType": "git"}, {"version": "e5c768d809a85e9efd0274b2efe69d4970cc0014", "lessThan": "dbafe636db415299e54d9dfefc1003bda9e71c9d", "status": "affected", "versionType": "git"}, {"version": "46f881b5b1758dc4a35fba4a643c10717d0cf427", "lessThan": "2298f2589903a8bc03061b54b31fd97985ab6529", "status": "affected", "versionType": "git"}, {"version": "46f881b5b1758dc4a35fba4a643c10717d0cf427", "lessThan": "590a809ff743e7bd890ba5fb36bc38e20a36de53", "status": "affected", "versionType": "git"}, {"version": "019b59aeb2af6b47d5c8e69c5dc1d731c8df0354", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["fs/jbd2/checkpoint.c"], "versions": [{"version": "6.5", "status": "affected"}, {"version": "0", "lessThan": "6.5", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.132", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.54", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5.4", "lessThanOrEqual": "6.5.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6", "lessThanOrEqual": "*", "status": "unaffected", "versionType": "original_commit_for_fix"}]}], "cpeApplicability": [{"nodes": [{"operator": "OR", "negate": false, "cpeMatch": [{"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.15.129", "versionEndExcluding": "5.15.132"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.1.50", "versionEndExcluding": "6.1.54"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.5.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.5", "versionEndExcluding": "6.6"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.4.13"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/ef5fea70e5915afd64182d155e72bfb4f275e1fc"}, {"url": "https://git.kernel.org/stable/c/dbafe636db415299e54d9dfefc1003bda9e71c9d"}, {"url": "https://git.kernel.org/stable/c/2298f2589903a8bc03061b54b31fd97985ab6529"}, {"url": "https://git.kernel.org/stable/c/590a809ff743e7bd890ba5fb36bc38e20a36de53"}], "title": "jbd2: check 'jh->b_transaction' before removing it from checkpoint", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: check 'jh->b_transaction' before removing it from checkpoint\n\nFollowing process will corrupt ext4 image:\nStep 1:\njbd2_journal_commit_transaction\n __jbd2_journal_insert_checkpoint(jh, commit_transaction)\n // Put jh into trans1->t_checkpoint_list\n journal->j_checkpoint_transactions = commit_transaction\n // Put trans1 into journal->j_checkpoint_transactions\n\nStep 2:\ndo_get_write_access\n test_clear_buffer_dirty(bh) // clear buffer dirty\uff0cset jbd dirty\n __jbd2_journal_file_buffer(jh, transaction) // jh belongs to trans2\n\nStep 3:\ndrop_cache\n journal_shrink_one_cp_list\n jbd2_journal_try_remove_checkpoint\n if (!trylock_buffer(bh)) // lock bh, true\n if (buffer_dirty(bh)) // buffer is not dirty\n __jbd2_journal_remove_checkpoint(jh)\n // remove jh from trans1->t_checkpoint_list\n\nStep 4:\njbd2_log_do_checkpoint\n trans1 = journal->j_checkpoint_transactions\n // jh is not in trans1->t_checkpoint_list\n jbd2_cleanup_journal_tail(journal) // trans1 is done\n\nStep 5: Power cut, trans2 is not committed, jh is lost in next mounting.\n\nFix it by checking 'jh->b_transaction' before remove it from checkpoint."}], "id": "CVE-2023-53526", "lastModified": "2025-10-02T19:11:46.753", "metrics": {}, "published": "2025-10-01T12:15:57.177", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2298f2589903a8bc03061b54b31fd97985ab6529"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/590a809ff743e7bd890ba5fb36bc38e20a36de53"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/dbafe636db415299e54d9dfefc1003bda9e71c9d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ef5fea70e5915afd64182d155e72bfb4f275e1fc"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: jbd2: check 'jh->b_transaction' before removing it from checkpoint", "id": "2400695", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2400695"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.5", "cvss3_scoring_vector": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "status": "draft"}, "details": ["In the Linux kernel, the following vulnerability has been resolved:\njbd2: check 'jh->b_transaction' before removing it from checkpoint\nFollowing process will corrupt ext4 image:\nStep 1:\njbd2_journal_commit_transaction\n__jbd2_journal_insert_checkpoint(jh, commit_transaction)\n// Put jh into trans1->t_checkpoint_list\njournal->j_checkpoint_transactions = commit_transaction\n// Put trans1 into journal->j_checkpoint_transactions\nStep 2:\ndo_get_write_access\ntest_clear_buffer_dirty(bh) // clear buffer dirty\uff0cset jbd dirty\n__jbd2_journal_file_buffer(jh, transaction) // jh belongs to trans2\nStep 3:\ndrop_cache\njournal_shrink_one_cp_list\njbd2_journal_try_remove_checkpoint\nif (!trylock_buffer(bh)) // lock bh, true\nif (buffer_dirty(bh)) // buffer is not dirty\n__jbd2_journal_remove_checkpoint(jh)\n// remove jh from trans1->t_checkpoint_list\nStep 4:\njbd2_log_do_checkpoint\ntrans1 = journal->j_checkpoint_transactions\n// jh is not in trans1->t_checkpoint_list\njbd2_cleanup_journal_tail(journal) // trans1 is done\nStep 5: Power cut, trans2 is not committed, jh is lost in next mounting.\nFix it by checking 'jh->b_transaction' before remove it from checkpoint."], "name": "CVE-2023-53526", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 10"}, {"cpe": "cpe:/o:redhat:enterprise_linux:6", "fix_state": "Out of support scope", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 6"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Not affected", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Fix deferred", "package_name": "kernel-rt", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:rhivos:1", "fix_state": "Not affected", "package_name": "kernel", "product_name": "Red Hat In-Vehicle Operating System 1"}], "public_date": "2025-10-01T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53526\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53526\nhttps://lore.kernel.org/linux-cve-announce/2025100135-CVE-2023-53526-ee71@gregkh/T"], "threat_severity": "Low"}

{"created": "2025-10-02T08:38:36.727778+00:00", "updated": "2025-10-02T08:38:36.727837+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}