CVE-2023-53681

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This may lead to a potential NULL pointer dereference in\ncaller function like a calling chain :\nbtree_split->bch_btree_node_alloc->__bch_btree_node_alloc.\n\nFix it by initializing the return value in __bch_btree_node_alloc."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/bcache/btree.c"], "versions": [{"version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "587b4e8bb5dac682f09280ab35db4632b29d5ac4", "status": "affected", "versionType": "git"}, {"version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "b070f29a61436f6f8a2e3abc7ea4f4be81695198", "status": "affected", "versionType": "git"}, {"version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "a4405f6ee03323410d7b10966fd67b35f71b1944", "status": "affected", "versionType": "git"}, {"version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "f67b0e3081f2a24170280a33ac66f6b112083c03", "status": "affected", "versionType": "git"}, {"version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "7ecea5ce3dc17339c280c75b58ac93d8c8620d9f", "status": "affected", "versionType": "git"}, {"version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "4514847aee18d9391a0cf3aad75d3567c72795a4", "status": "affected", "versionType": "git"}, {"version": "cafe563591446cf80bfbc2fe3bc72a2e36cf1060", "lessThan": "80fca8a10b604afad6c14213fdfd816c4eda3ee4", "status": "affected", "versionType": "git"}]}, {"product": "Linux", "vendor": "Linux", "defaultStatus": "affected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/md/bcache/btree.c"], "versions": [{"version": "3.10", "status": "affected"}, {"version": "0", "lessThan": "3.10", "status": "unaffected", "versionType": "semver"}, {"version": "4.19.291", "lessThanOrEqual": "4.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.4.253", "lessThanOrEqual": "5.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.188", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.121", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.39", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.4.4", "lessThanOrEqual": "6.4.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.5", "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": "3.10", "versionEndExcluding": "4.19.291"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "5.4.253"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "5.10.188"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "5.15.121"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.1.39"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.4.4"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "3.10", "versionEndExcluding": "6.5"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/587b4e8bb5dac682f09280ab35db4632b29d5ac4"}, {"url": "https://git.kernel.org/stable/c/b070f29a61436f6f8a2e3abc7ea4f4be81695198"}, {"url": "https://git.kernel.org/stable/c/a4405f6ee03323410d7b10966fd67b35f71b1944"}, {"url": "https://git.kernel.org/stable/c/f67b0e3081f2a24170280a33ac66f6b112083c03"}, {"url": "https://git.kernel.org/stable/c/7ecea5ce3dc17339c280c75b58ac93d8c8620d9f"}, {"url": "https://git.kernel.org/stable/c/4514847aee18d9391a0cf3aad75d3567c72795a4"}, {"url": "https://git.kernel.org/stable/c/80fca8a10b604afad6c14213fdfd816c4eda3ee4"}], "title": "bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

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This may lead to a potential NULL pointer dereference in\ncaller function like a calling chain :\nbtree_split->bch_btree_node_alloc->__bch_btree_node_alloc.\n\nFix it by initializing the return value in __bch_btree_node_alloc."}, {"lang": "es", "value": "En el kernel de Linux, la siguiente vulnerabilidad ha sido resuelta:\n\nbcache: Correcci\u00f3n de __bch_btree_node_alloc para hacer que el comportamiento de fallo sea consistente\n\nEn algunas situaciones espec\u00edficas, el valor de retorno de __bch_btree_node_alloc puede ser NULL. Esto puede llevar a una potencial desreferencia de puntero NULL en la funci\u00f3n llamadora, como una cadena de llamadas:\nbtree_split -> bch_btree_node_alloc -> __bch_btree_node_alloc.\n\nSe corrige inicializando el valor de retorno en __bch_btree_node_alloc."}], "id": "CVE-2023-53681", "lastModified": "2026-10-28T20:10:00.163", "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": "2025-10-07T16:15:52.287", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/4514847aee18d9391a0cf3aad75d3567c72795a4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/587b4e8bb5dac682f09280ab35db4632b29d5ac4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/7ecea5ce3dc17339c280c75b58ac93d8c8620d9f"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/80fca8a10b604afad6c14213fdfd816c4eda3ee4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/a4405f6ee03323410d7b10966fd67b35f71b1944"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/b070f29a61436f6f8a2e3abc7ea4f4be81695198"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "tags": ["Patch"], "url": "https://git.kernel.org/stable/c/f67b0e3081f2a24170280a33ac66f6b112083c03"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Analyzed", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-476"}], "source": "nvd@nist.gov", "type": "Primary"}]}

{"bugzilla": {"description": "kernel: bcache: Fix __bch_btree_node_alloc to make the failure behavior consistent", "id": "2402201", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2402201"}, "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": ["No description is available for this CVE."], "name": "CVE-2023-53681", "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": "Not affected", "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": "Not affected", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 9"}, {"cpe": "cpe:/o:redhat:enterprise_linux:9", "fix_state": "Not affected", "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": "2025-10-07T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2023-53681\nhttps://nvd.nist.gov/vuln/detail/CVE-2023-53681\nhttps://lore.kernel.org/linux-cve-announce/2025100708-CVE-2023-53681-7a5a@gregkh/T"], "threat_severity": "Moderate"}

{"created": "2025-10-08T13:35:35.564689+00:00", "updated": "2025-10-08T13:35:35.564715+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}