CVE-2026-72023

{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-72023", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-09T03:40:39.900Z", "datePublished": "2026-08-15T05:51:48.629Z", "dateUpdated": "2026-08-23T12:46:27.683Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-23T12:46:27.683Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix SQB pointer leak on init failure\n\notx2_init_hw_resources() initializes SQ aura and pool resources before\nseveral later setup steps. On failure, err_free_sq_ptrs only frees SQB\npages, leaving the per-SQ sqb_ptrs arrays behind.\n\nUse otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs\neven when sq->sqe has not been allocated yet.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still\npresent in v7.1.1.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have an\nOcteonTX2 PF device and the corresponding AF mailbox setup to test with,\nno runtime testing was able to be performed."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"], "versions": [{"version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "lessThan": "fca9c22633169a6c5d429a32e439121b6419e2be", "status": "affected", "versionType": "git"}, {"version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "lessThan": "42c2836f10ac0427dac9e9a923d6ee2189dec544", "status": "affected", "versionType": "git"}, {"version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "lessThan": "2cac2eac935ed7e0a9203204e036a1f6090ebc3d", "status": "affected", "versionType": "git"}, {"version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "lessThan": "148d7ec0a3a98839c320e6cdd112e2e88bfb091b", "status": "affected", "versionType": "git"}, {"version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "lessThan": "5e023fe2569e630ba23b5558ebe4bf4837af4d16", "status": "affected", "versionType": "git"}, {"version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "lessThan": "5df30f05db96552903680a17f858d250dfd9e86e", "status": "affected", "versionType": "git"}, {"version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "lessThan": "23d917acd9c9a9fd999688ec3fdde7aa58ab8a14", "status": "affected", "versionType": "git"}, {"version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "lessThan": "62e7df6d042aeebd5efb581074e28865c04477be", "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/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"], "versions": [{"version": "5.6", "status": "affected"}, {"version": "0", "lessThan": "5.6", "status": "unaffected", "versionType": "semver"}, {"version": "5.10.266", "lessThanOrEqual": "5.10.*", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.217", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.184", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.148", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.101", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.40", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.1.5", "lessThanOrEqual": "7.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.2", "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": "5.6", "versionEndExcluding": "5.10.266"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "5.15.217"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.1.184"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.6.148"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.12.101"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.6", "versionEndExcluding": "7.2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/fca9c22633169a6c5d429a32e439121b6419e2be"}, {"url": "https://git.kernel.org/stable/c/42c2836f10ac0427dac9e9a923d6ee2189dec544"}, {"url": "https://git.kernel.org/stable/c/2cac2eac935ed7e0a9203204e036a1f6090ebc3d"}, {"url": "https://git.kernel.org/stable/c/148d7ec0a3a98839c320e6cdd112e2e88bfb091b"}, {"url": "https://git.kernel.org/stable/c/5e023fe2569e630ba23b5558ebe4bf4837af4d16"}, {"url": "https://git.kernel.org/stable/c/5df30f05db96552903680a17f858d250dfd9e86e"}, {"url": "https://git.kernel.org/stable/c/23d917acd9c9a9fd999688ec3fdde7aa58ab8a14"}, {"url": "https://git.kernel.org/stable/c/62e7df6d042aeebd5efb581074e28865c04477be"}], "title": "octeontx2-pf: fix SQB pointer leak on init failure", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "fca9c22633169a6c5d429a32e439121b6419e2be", "status": "affected", "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "versionType": "git"}, {"lessThan": "42c2836f10ac0427dac9e9a923d6ee2189dec544", "status": "affected", "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "versionType": "git"}, {"lessThan": "2cac2eac935ed7e0a9203204e036a1f6090ebc3d", "status": "affected", "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "versionType": "git"}, {"lessThan": "148d7ec0a3a98839c320e6cdd112e2e88bfb091b", "status": "affected", "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "versionType": "git"}, {"lessThan": "5e023fe2569e630ba23b5558ebe4bf4837af4d16", "status": "affected", "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "versionType": "git"}, {"lessThan": "5df30f05db96552903680a17f858d250dfd9e86e", "status": "affected", "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "versionType": "git"}, {"lessThan": "23d917acd9c9a9fd999688ec3fdde7aa58ab8a14", "status": "affected", "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "versionType": "git"}, {"lessThan": "62e7df6d042aeebd5efb581074e28865c04477be", "status": "affected", "version": "caa2da34fd25a37e9fd43343b6966fb9d730a6d5", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/net/ethernet/marvell/octeontx2/nic/otx2_pf.c"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.6"}, {"lessThan": "5.6", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.10.*", "status": "unaffected", "version": "5.10.266", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.217", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.184", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.148", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.101", "versionType": "semver"}, {"lessThanOrEqual": "6.18.*", "status": "unaffected", "version": "6.18.40", "versionType": "semver"}, {"lessThanOrEqual": "7.1.*", "status": "unaffected", "version": "7.1.5", "versionType": "semver"}, {"lessThanOrEqual": "*", "status": "unaffected", "version": "7.2", "versionType": "original_commit_for_fix"}]}], "source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nocteontx2-pf: fix SQB pointer leak on init failure\n\notx2_init_hw_resources() initializes SQ aura and pool resources before\nseveral later setup steps. On failure, err_free_sq_ptrs only frees SQB\npages, leaving the per-SQ sqb_ptrs arrays behind.\n\nUse otx2_free_sq_res() for the SQ unwind path and let it free sqb_ptrs\neven when sq->sqe has not been allocated yet.\n\nThe bug was first flagged by an experimental analysis tool we are\ndeveloping for kernel memory-management bugs while analyzing\nv6.13-rc1. The tool is still under development and is not yet publicly\navailable. Manual inspection confirms that the bug is still\npresent in v7.1.1.\n\nAn x86_64 allyesconfig build showed no new warnings. As we do not have an\nOcteonTX2 PF device and the corresponding AF mailbox setup to test with,\nno runtime testing was able to be performed."}], "id": "CVE-2026-72023", "lastModified": "2026-08-23T13:16:37.467", "metrics": {}, "published": "2026-08-15T06:21:01.323", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/148d7ec0a3a98839c320e6cdd112e2e88bfb091b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/23d917acd9c9a9fd999688ec3fdde7aa58ab8a14"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/2cac2eac935ed7e0a9203204e036a1f6090ebc3d"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/42c2836f10ac0427dac9e9a923d6ee2189dec544"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5df30f05db96552903680a17f858d250dfd9e86e"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/5e023fe2569e630ba23b5558ebe4bf4837af4d16"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/62e7df6d042aeebd5efb581074e28865c04477be"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/fca9c22633169a6c5d429a32e439121b6419e2be"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{"bugzilla": {"description": "kernel: octeontx2-pf: fix SQB pointer leak on init failure", "id": "2516311", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2516311"}, "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-772", "details": ["A flaw was found in the Linux kernel's `octeontx2-pf` driver. During the initialization of hardware resources, a memory leak occurs where certain pointer arrays are not properly freed upon failure. This issue could lead to resource exhaustion, potentially resulting in a Denial of Service (DoS) for the system."], "name": "CVE-2026-72023", "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": "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": "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": "2026-08-15T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-72023\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-72023\nhttps://lore.kernel.org/linux-cve-announce/2026081510-CVE-2026-72023-c1c4@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[caa2da34fd25a37e9fd43343b6966fb9d730a6d5,148d7ec0a3a98839c320e6cdd112e2e88bfb091b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[caa2da34fd25a37e9fd43343b6966fb9d730a6d5,5e023fe2569e630ba23b5558ebe4bf4837af4d16)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[caa2da34fd25a37e9fd43343b6966fb9d730a6d5,5df30f05db96552903680a17f858d250dfd9e86e)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[caa2da34fd25a37e9fd43343b6966fb9d730a6d5,23d917acd9c9a9fd999688ec3fdde7aa58ab8a14)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[caa2da34fd25a37e9fd43343b6966fb9d730a6d5,62e7df6d042aeebd5efb581074e28865c04477be)"}}], "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": "semver", "value": "5.6"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,5.6)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.148,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.101,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.40,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.1.5,7.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[7.2-rc3,*]"}}], "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": "2026-08-15T09:15:04.419220+00:00", "updated": "2026-08-18T06:30:08.615039+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}