{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-23289", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-01-13T15:37:45.992Z", "datePublished": "2026-03-25T10:26:48.207Z", "dateUpdated": "2026-03-25T10:26:48.207Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-03-25T10:26:48.207Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()\n\nFix a user triggerable leak on the system call failure path."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/mthca/mthca_provider.c"], "versions": [{"version": "ec34a922d243c3401a694450734e9effb2bafbfe", "lessThan": "f67f1ad4029e9fa183141546de31987b254c9292", "status": "affected", "versionType": "git"}, {"version": "ec34a922d243c3401a694450734e9effb2bafbfe", "lessThan": "d0148965dbca8cc8efa7e3d6e99940487bf661c0", "status": "affected", "versionType": "git"}, {"version": "ec34a922d243c3401a694450734e9effb2bafbfe", "lessThan": "da8eaa73bc37d004350ba68eb18b6ade8e49db52", "status": "affected", "versionType": "git"}, {"version": "ec34a922d243c3401a694450734e9effb2bafbfe", "lessThan": "deee46b37ebd8cc5ff810127883fca90f2412a7b", "status": "affected", "versionType": "git"}, {"version": "ec34a922d243c3401a694450734e9effb2bafbfe", "lessThan": "972b72d7e2d8fe1400f1c7a8304c282c539b7e02", "status": "affected", "versionType": "git"}, {"version": "ec34a922d243c3401a694450734e9effb2bafbfe", "lessThan": "117942ca43e2e3c3d121faae530989931b7f67e1", "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/infiniband/hw/mthca/mthca_provider.c"], "versions": [{"version": "2.6.14", "status": "affected"}, {"version": "0", "lessThan": "2.6.14", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.167", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.130", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.77", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.18.17", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.19.7", "lessThanOrEqual": "6.19.*", "status": "unaffected", "versionType": "semver"}, {"version": "7.0-rc2", "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": "2.6.14", "versionEndExcluding": "6.1.167"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.6.130"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.12.77"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.18.17"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "6.19.7"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "2.6.14", "versionEndExcluding": "7.0-rc2"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/f67f1ad4029e9fa183141546de31987b254c9292"}, {"url": "https://git.kernel.org/stable/c/d0148965dbca8cc8efa7e3d6e99940487bf661c0"}, {"url": "https://git.kernel.org/stable/c/da8eaa73bc37d004350ba68eb18b6ade8e49db52"}, {"url": "https://git.kernel.org/stable/c/deee46b37ebd8cc5ff810127883fca90f2412a7b"}, {"url": "https://git.kernel.org/stable/c/972b72d7e2d8fe1400f1c7a8304c282c539b7e02"}, {"url": "https://git.kernel.org/stable/c/117942ca43e2e3c3d121faae530989931b7f67e1"}], "title": "IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"cveTags": [], "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nIB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()\n\nFix a user triggerable leak on the system call failure path."}], "id": "CVE-2026-23289", "lastModified": "2026-03-25T15:41:33.977", "metrics": {}, "published": "2026-03-25T11:16:23.887", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/117942ca43e2e3c3d121faae530989931b7f67e1"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/972b72d7e2d8fe1400f1c7a8304c282c539b7e02"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d0148965dbca8cc8efa7e3d6e99940487bf661c0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/da8eaa73bc37d004350ba68eb18b6ade8e49db52"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/deee46b37ebd8cc5ff810127883fca90f2412a7b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/f67f1ad4029e9fa183141546de31987b254c9292"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Awaiting Analysis"}

{"bugzilla": {"description": "kernel: IB/mthca: Add missed mthca_unmap_user_db() for mthca_create_srq()", "id": "2451253", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2451253"}, "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 IB/mthca component. A local user could exploit this vulnerability by triggering a system call failure path related to the `mthca_create_srq()` function. This oversight leads to a missed unmapping of user database resources, resulting in a resource leak."], "name": "CVE-2026-23289", "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": "Fix deferred", "package_name": "kernel", "product_name": "Red Hat Enterprise Linux 7"}, {"cpe": "cpe:/o:redhat:enterprise_linux:7", "fix_state": "Fix deferred", "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"}], "public_date": "2026-03-25T00:00:00Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-23289\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-23289\nhttps://lore.kernel.org/linux-cve-announce/2026032524-CVE-2026-23289-aa54@gregkh/T"], "threat_severity": "Low"}

{"affected": [{"configurations": [{"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ec34a922d243c3401a694450734e9effb2bafbfe,f67f1ad4029e9fa183141546de31987b254c9292)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ec34a922d243c3401a694450734e9effb2bafbfe,d0148965dbca8cc8efa7e3d6e99940487bf661c0)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ec34a922d243c3401a694450734e9effb2bafbfe,da8eaa73bc37d004350ba68eb18b6ade8e49db52)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ec34a922d243c3401a694450734e9effb2bafbfe,deee46b37ebd8cc5ff810127883fca90f2412a7b)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ec34a922d243c3401a694450734e9effb2bafbfe,972b72d7e2d8fe1400f1c7a8304c282c539b7e02)"}}, {"platform": null, "status": "affected", "versions": {"scheme": "code_commit", "value": "[ec34a922d243c3401a694450734e9effb2bafbfe,117942ca43e2e3c3d121faae530989931b7f67e1)"}}], "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": "2.6.14"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[0,2.6.14)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.1.167,6.2.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.6.130,6.7.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.12.77,6.13.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.18.17,6.19.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "semver", "value": "[6.19.7,6.20.0)"}}, {"platform": null, "status": "unaffected", "versions": {"scheme": "generic", "value": "[7.0-rc2,*]"}}], "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"}], "analysis": {"en": {"generated_at": "2026-03-26T05:52:34.051449+00:00", "value": {"mitigation_remediation": ["Upgrade the Linux kernel to a version that includes the commit adding mthca_unmap_user_db on SRQ failure paths.", "Verify the running kernel contains the relevant commit hash using the links provided in the advisory.", "If a kernel upgrade is not immediately possible, restrict or block untrusted users from accessing the SRQ\u2011creation API or consider disabling the IB/mthca module until the patch is applied."], "summary": {"action": "Apply Patch", "impact": "Information Disclosure"}, "threat_synthesis": {"affected_systems": "This vulnerability exists in any Linux kernel that includes the IB/mthca driver prior to the commit that adds the missing unmap call. All distributions shipping the affected kernel and loading the IB/mthca module are potentially impacted. No specific version numbers are given, so every kernel build containing the legacy code is at risk.", "description_and_impact": "The Linux kernel\u2019s IB/mthca driver contains a flaw that causes a user\u2011initiated SRQ (shared receive queue) creation failure to leak memory. The driver incorrectly omits a call to unmap the user database, which can expose kernel memory content that should remain protected. The weakness aligns with CWE-200 (information disclosure) and CWE-772 (improper release of resource).", "risk_and_exploitability": "With a CVSS score of 5.5 the issue is considered medium severity, and its EPSS score is below 1%, indicating a low likelihood of exploitation. It is not listed in the CISA KEV catalog. The vulnerability requires the attacker to trigger SRQ creation via the IB/mthca API; this is inferred from the description that the leak occurs on a user\u2011initiated system call failure path."}}}}, "created": "2026-03-25T21:15:41.313928+00:00", "updated": "2026-03-26T12:17:06.855764+00:00", "vendors": ["linux", "linux$PRODUCT$linux_kernel"]}