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"versionStartIncluding": "6.19", "vulnerable": true}], "negate": false, "operator": "OR"}]}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\next4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()\n\nThe commit c8e008b60492 (\"ext4: ignore xattrs past end\")\nintroduced a refcount leak in when block_csum is false.\n\next4_xattr_inode_dec_ref_all() calls ext4_get_inode_loc() to\nget iloc.bh, but never releases it with brelse()."}], "id": "CVE-2026-46046", "lastModified": "2026-10-15T02:19:40.170", "metrics": {"cvssMetricV31": [{"cvssData": {"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"}, "exploitabilityScore": 1.8, "impactScore": 3.6, "source": "nvd@nist.gov", "type": "Primary"}]}, "published": "2026-05-27T14:17:24.083", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/097227f1ffe1a85bc3c359f81c71e3d40e06e920"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/153ab2c52355fbebcae622db8e7b506492c73a29"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1bc1107a3a403a6d440673ed6666f7b07ef868a8"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/1e6b0a69bf2c9c819255c7566e4355536d81d9cf"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/77d059519382bd66283e6a4e83ee186e87e7708f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b706d00206a9e82362a9633efbd8b5775650169b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/dd98a5603a212ea9c96c6982ccdbcc748fdb9a56"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f072906688933bf47fabbaf63560be03357c8298"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-019113.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-457936.html"}, {"source": "0b142b55-0307-4c5a-b3c9-f314f3fb7c5e", "url": "https://cert-portal.siemens.com/productcert/html/ssa-784472.html"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Modified", "weaknesses": [{"description": [{"lang": "en", "value": "NVD-CWE-noinfo"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: ext4: fix missing brelse() in ext4_xattr_inode_dec_ref_all()", "id": "2481931", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2481931"}, "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"}, "cwe": "CWE-911", "details": ["A flaw was found in the Linux kernel's ext4 filesystem. A reference count (refcount) leak occurs in the `ext4_xattr_inode_dec_ref_all()` function. This issue arises because the `iloc.bh` buffer head, acquired by `ext4_get_inode_loc()`, is not properly released with `brelse()`. This can lead to resource exhaustion or system instability over time."], "name": "CVE-2026-46046", "package_state": [{"cpe": "cpe:/o:redhat:enterprise_linux:10", "fix_state": "Fix deferred", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 8"}, {"cpe": "cpe:/o:redhat:enterprise_linux:8", "fix_state": "Fix deferred", "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"}], "public_date": "2026-05-27T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-46046\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-46046\nhttps://lore.kernel.org/linux-cve-announce/2026052752-CVE-2026-46046-045e@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[362a90cecd36e8a5c415966d0b75b04a0270e4dd,1bc1107a3a403a6d440673ed6666f7b07ef868a8)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[eb59cc31b6ea076021d14b04e7faab1636b87d0e,097227f1ffe1a85bc3c359f81c71e3d40e06e920)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8e008b60492cf6fd31ef127aea6d02fd3d314cd,1e6b0a69bf2c9c819255c7566e4355536d81d9cf)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8e008b60492cf6fd31ef127aea6d02fd3d314cd,f072906688933bf47fabbaf63560be03357c8298)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[c8e008b60492cf6fd31ef127aea6d02fd3d314cd,77d059519382bd66283e6a4e83ee186e87e7708f)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "6aff941cb0f7d0c897c3698ad2e30672709135e3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "76c365fa7e2a8bb85f0190cdb4b8cdc99b2fdce3"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "f737418b6de31c962c7192777ee4018906975383"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "cf9291a3449b04688b81e32621e88de8f4314b54"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "3bc6317033f365ce578eb6039445fb66162722fd"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "836e625b03a666cf93ff5be328c8cb30336db872"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.6.88,6.6.140)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "semver", "value": "[6.12.24,6.12.86)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[5.4.293,5.5)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[5.10.237,5.11)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[5.15.181,5.16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.1.135,6.2)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.13.12,6.14)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "[6.14.3,6.15)"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}, {"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "generic", "value": "6.15"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[0,6.15)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.140,7.0.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.86,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.27,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.0.4,7.1.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.1-rc1,*]"}}], "enrichment": {"confidence": 99.0, "confidence_source": "inferred", "scores": [{"score": 99.0, "source": "inferred"}, {"score": 100.0, "source": "matching"}]}, "original": {"product": "Linux", "source": "cna", "vendor": "Linux"}, "product": "linux_kernel", "vendor": "linux"}], "created": "2026-05-27T20:30:40.559229+00:00", "updated": "2026-06-18T02:15:15.640186+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}