CVE-2026-46061

{"id": "CVE-2026-46061", "cveTags": [], "metrics": {"cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 5.5, "attackVector": "LOCAL", "baseSeverity": "MEDIUM", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H", "integrityImpact": "NONE", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "NONE"}, "impactScore": 3.6, "exploitabilityScore": 1.8}]}, "affected": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "affectedData": [{"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "f1c5aa614b5c251f93a6a4c8c26001d5e9e53fd6", "lessThan": "dff07cc98fdf6af57a7c054dc09b2050a9d5c287", "versionType": "git"}, {"status": "affected", "version": "f76d4c28a46a9260d85e00dafc8f46d369365d33", "lessThan": "2b2fee890250ab647a601124471a334bb01a0790", "versionType": "git"}, {"status": "affected", "version": "f76d4c28a46a9260d85e00dafc8f46d369365d33", "lessThan": "bbd943d6a2d566428324b516a37f98328dfb802d", "versionType": "git"}, {"status": "affected", "version": "f76d4c28a46a9260d85e00dafc8f46d369365d33", "lessThan": "981fcc5674e67158d24d23e841523eccba19d0e7", "versionType": "git"}, {"status": "affected", "version": "1bb7a4b6b3d7dd8da6f5a9d0529d42c22a359e71", "versionType": "git"}, {"status": "affected", "version": "6.12.31", "lessThan": "6.12.86", "versionType": "semver"}, {"status": "affected", "version": "6.14.9", "lessThan": "6.15", "versionType": "semver"}], "programFiles": ["fs/jbd2/revoke.c"], "defaultStatus": "unaffected"}, {"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "product": "Linux", "versions": [{"status": "affected", "version": "6.15"}, {"status": "unaffected", "version": "0", "lessThan": "6.15", "versionType": "semver"}, {"status": "unaffected", "version": "6.12.86", "versionType": "semver", "lessThanOrEqual": "6.12.*"}, {"status": "unaffected", "version": "6.18.27", "versionType": "semver", "lessThanOrEqual": "6.18.*"}, {"status": "unaffected", "version": "7.0.4", "versionType": "semver", "lessThanOrEqual": "7.0.*"}, {"status": "unaffected", "version": "7.1", "versionType": "original_commit_for_fix", "lessThanOrEqual": "*"}], "programFiles": ["fs/jbd2/revoke.c"], "defaultStatus": "affected"}]}], "published": "2026-05-27T14:17:25.883", "references": [{"url": "https://git.kernel.org/stable/c/2b2fee890250ab647a601124471a334bb01a0790", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/981fcc5674e67158d24d23e841523eccba19d0e7", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/bbd943d6a2d566428324b516a37f98328dfb802d", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}, {"url": "https://git.kernel.org/stable/c/dff07cc98fdf6af57a7c054dc09b2050a9d5c287", "tags": ["Patch"], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Primary", "source": "nvd@nist.gov", "description": [{"lang": "en", "value": "CWE-667"}]}], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\njbd2: fix deadlock in jbd2_journal_cancel_revoke()\n\nCommit f76d4c28a46a (\"fs/jbd2: use sleeping version of\n__find_get_block()\") changed jbd2_journal_cancel_revoke() to use\n__find_get_block_nonatomic() which holds the folio lock instead of\ni_private_lock. This breaks the lock ordering (folio -> buffer) and\ncauses an ABBA deadlock when the filesystem blocksize < pagesize:\n\n T1 T2\next4_mkdir()\n ext4_init_new_dir()\n ext4_append()\n ext4_getblk()\n lock_buffer() <- A\n sync_blockdev()\n blkdev_writepages()\n writeback_iter()\n writeback_get_folio()\n folio_lock() <- B\n ext4_journal_get_create_access()\n jbd2_journal_cancel_revoke()\n __find_get_block_nonatomic()\n folio_lock() <- B\n block_write_full_folio()\n lock_buffer() <- A\n\nThis can occasionally cause generic/013 to hang.\n\nFix by only calling __find_get_block_nonatomic() when the passed\nbuffer_head doesn't belong to the bdev, which is the only case that we\nneed to look up its bdev alias. Otherwise, the lookup is redundant since\nthe found buffer_head is equal to the one we passed in."}], "lastModified": "2026-06-17T10:53:00.163", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "E6ACB06A-F8F9-4F0F-BFBD-3A3C068B63CE", "versionEndExcluding": "6.12.86", "versionStartIncluding": "6.12.31"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2932EEA2-2EDB-4FE6-9BF4-C1F90FF22950", "versionEndExcluding": "6.15", "versionStartIncluding": "6.14.9"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "7B3FD84A-4B27-4071-A966-505038245FAC", "versionEndExcluding": "6.18.27", "versionStartIncluding": "6.15.1"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "CDB78D6D-22C3-4154-B0D0-94AF1CE5C2E3", "versionEndExcluding": "7.0.4", "versionStartIncluding": "6.19"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:-:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "A1ECC65A-EE37-4479-8E99-4BB68A22A31F"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc4:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "8C7B5B0E-4EEB-48F5-B4CF-0935A7633845"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc5:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "2D240580-3048-49B2-9E27-F115A9DF8224"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc6:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "90320558-E553-4EF5-8A0B-0F5D20113BD2"}, {"criteria": "cpe:2.3:o:linux:linux_kernel:6.15:rc7:*:*:*:*:*:*", "vulnerable": true, "matchCriteriaId": "C300BA32-5854-4B59-A00A-18A402F291D0"}], "operator": "OR"}]}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}