{ "dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": { "cveId": "CVE-2026-46117", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-05-13T15:03:33.098Z", "datePublished": "2026-05-28T09:35:32.344Z", "dateUpdated": "2026-08-05T12:29:49.531Z" }, "containers": { "cna": { "providerMetadata": { "orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-05T12:29:49.531Z" }, "descriptions": [ { "lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss()\n\nSashiko points out that the user can specify WQs sharing the same CQ as a\npart of the uAPI and this will trigger the WARN_ON() then go on to corrupt\nthe kernel.\n\nJust reject it outright and fail the QP creation." } ], "metrics": [ { "cvssV3_1": { "version": "3.1", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "baseScore": 7.8, "baseSeverity": "HIGH" }, "scenarios": [ { "lang": "en", "value": "AV:L - The bug is reached through the RDMA userspace verbs interface (/dev/infiniband/uverbs) by issuing a create-QP command locally; it is not exposed to network peers.\nAC:L - The condition is created entirely by the attacker (building an RWQ indirection table whose WQs share one CQ) and is deterministically triggered on the second loop iteration; there is no race or uncontrolled state.\nPR:L - Triggering only requires an unprivileged local process with access to the RDMA verbs device — the normal configuration on RDMA-enabled hosts — and no CAP_* check exists on the create-QP path.\nUI:N - The attacker performs all steps via its own verbs calls; no action by another user is required.\nS:U - The corruption stays within the kernel's own memory/security authority and does not cross a VM/IOMMU/sandbox boundary.\nC:H - The overwrite leaks/dangles objects in cq_table[], and a use-after-free on these IRQ-dispatched structures can be leveraged to read kernel memory contents.\nI:H - The driver \"goes on to corrupt the kernel,\" leaving dangling function-pointer/context entries in a table called from interrupt context, providing a write/control-flow corruption primitive.\nA:H - The user-triggerable WARN_ON panics the system when panic_on_warn is set, and the subsequent kernel state corruption causes oopses/crashes regardless." } ] } ], "affected": [ { "product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": [ "drivers/infiniband/hw/mana/cq.c" ], "versions": [ { "version": "c15d7802a42402a87880a17eee89ff023e49ecc0", "lessThan": "9cc0c6b1ba8cd5c55aef043e1384de0a8b4efa71", "status": "affected", "versionType": "git" }, { "version": "c15d7802a42402a87880a17eee89ff023e49ecc0", "lessThan": "9ef65af26b2a6738bf15812042e84b3112402d3a", "status": "affected", "versionType": "git" }, { "version": "c15d7802a42402a87880a17eee89ff023e49ecc0", "lessThan": "db991ba50087ad99fa12a2c483aa3be19671ea73", "status": "affected", "versionType": "git" }, { "version": "c15d7802a42402a87880a17eee89ff023e49ecc0", "lessThan": "159f2efabc89d3f931d38f2d35876535d4abf0a3", "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/mana/cq.c" ], "versions": [ { "version": "6.8", "status": "affected" }, { "version": "0", "lessThan": "6.8", "status": "unaffected", "versionType": "semver" }, { "version": "6.12.91", "lessThanOrEqual": "6.12.*", "status": "unaffected", "versionType": "semver" }, { "version": "6.18.30", "lessThanOrEqual": "6.18.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.0.7", "lessThanOrEqual": "7.0.*", "status": "unaffected", "versionType": "semver" }, { "version": "7.1", "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": "6.8", "versionEndExcluding": "6.12.91" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "6.18.30" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.0.7" }, { "vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "6.8", "versionEndExcluding": "7.1" } ] } ] } ], "references": [ { "url": "https://git.kernel.org/stable/c/9cc0c6b1ba8cd5c55aef043e1384de0a8b4efa71" }, { "url": "https://git.kernel.org/stable/c/9ef65af26b2a6738bf15812042e84b3112402d3a" }, { "url": "https://git.kernel.org/stable/c/db991ba50087ad99fa12a2c483aa3be19671ea73" }, { "url": "https://git.kernel.org/stable/c/159f2efabc89d3f931d38f2d35876535d4abf0a3" } ], "title": "RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss()", "x_generator": { "engine": "bippy-1.2.0" } }, "adp": [ { "affected": [ { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:10.2" ], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 10", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:6.12.0-211.28.1.el10_2", "versionType": "rpm" } ] }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:enterprise_linux:8::nfv" ], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:4.18.0-553.146.1.rt7.487.el8_10", "versionType": "rpm" } ] }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:8" ], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 8", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:4.18.0-553.146.1.el8_10", "versionType": "rpm" } ] }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/a:redhat:enterprise_linux:9", "cpe:/o:redhat:enterprise_linux:9" ], "defaultStatus": "affected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat", "versions": [ { "lessThan": "*", "status": "unaffected", "version": "0:5.14.0-687.17.1.el9_8", "versionType": "rpm" } ] }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:6" ], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 6", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ], "defaultStatus": "unaffected", "packageName": "kernel", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:7" ], "defaultStatus": "unaffected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 7", "vendor": "Red Hat" }, { "collectionURL": "https://access.redhat.com/downloads/content/package-browser/", "cpes": [ "cpe:/o:redhat:enterprise_linux:9" ], "defaultStatus": "affected", "packageName": "kernel-rt", "product": "Red Hat Enterprise Linux 9", "vendor": "Red Hat" } ], "datePublic": "2026-05-28T00:00:00.000Z", "descriptions": [ { "lang": "en", "value": "A flaw was found in the Linux kernel's RDMA/mana component. A local user could trigger a kernel corruption by providing specific configurations through the user Application Programming Interface (uAPI) that cause an internal error. This issue arises when Work Queues (WQs) are specified to share the same Completion Queue (CQ), leading to an unstable system state." } ], "metrics": [ { "other": { "content": { "namespace": "https://access.redhat.com/security/updates/classification/", "value": "Important" }, "type": "Red Hat severity rating" } }, { "cvssV3_1": { "attackComplexity": "HIGH", "attackVector": "LOCAL", "availabilityImpact": "HIGH", "baseScore": 7, "baseSeverity": "HIGH", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:H/PR:L/UI:N/S:U/C:H/I:H/A:H", "version": "3.1" }, "format": "CVSS" } ], "problemTypes": [ { "descriptions": [ { "cweId": "CWE-1288", "description": "Improper Validation of Consistency within Input", "lang": "en", "type": "CWE" } ] } ], "references": [ { "tags": [ "vdb-entry", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/security/cve/CVE-2026-46117" }, { "name": "RHBZ#2482576", "tags": [ "issue-tracking", "x_refsource_REDHAT" ], "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2482576" }, { "tags": [ "x_sadp-csaf-vex" ], "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-46117.json" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:30129" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:27789" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:42552" }, { "tags": [ "vendor-advisory", "x_refsource_REDHAT" ], "url": "https://access.redhat.com/errata/RHSA-2026:42550" } ], "solutions": [ { "lang": "en", "value": "RHSA-2026:30129: Red Hat Enterprise Linux AppStream (v. 10), Red Hat Enterprise Linux BaseOS (v. 10), Red Hat Enterprise Linux CodeReady Linux Builder (v. 10), Red Hat Enterprise Linux Real Time (v. 10), Red Hat Enterprise Linux Real Time for NFV (v. 10)" }, { "lang": "en", "value": "RHSA-2026:27789: Red Hat Enterprise Linux AppStream (v. 9), Red Hat Enterprise Linux BaseOS (v. 9), Red Hat Enterprise Linux CodeReady Linux Builder (v. 9), Red Hat Enterprise Linux Real Time (v. 9), Red Hat Enterprise Linux Real Time for NFV (v. 9)" }, { "lang": "en", "value": "RHSA-2026:42552: Red Hat Enterprise Linux BaseOS (v. 8), Red Hat Enterprise Linux CRB (v. 8)" }, { "lang": "en", "value": "RHSA-2026:42550: Red Hat Enterprise Linux NFV (v. 8), Red Hat Enterprise Linux RT (v. 8)" } ], "timeline": [ { "lang": "en", "time": "2026-05-28T00:00:00.000Z", "value": "Reported to Red Hat." }, { "lang": "en", "time": "2026-05-28T00:00:00.000Z", "value": "Made public." } ], "title": "kernel: RDMA/mana: Remove user triggerable WARN_ON() in mana_ib_create_qp_rss()", "x_adpType": "supplier", "x_generator": { "engine": "sadp-cli 1.0.0" }, "providerMetadata": { "orgId": "0b0ca135-0b70-47e7-9f44-1890c2a1c46c", "shortName": "redhat-SADP", "dateUpdated": "2026-07-21T12:05:08.120Z" } } ] } }