{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-74346", "assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "state": "PUBLISHED", "assignerShortName": "Linux", "dateReserved": "2026-08-15T05:44:03.886Z", "datePublished": "2026-08-15T05:58:34.606Z", "dateUpdated": "2026-08-15T05:58:34.606Z"}, "containers": {"cna": {"providerMetadata": {"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "shortName": "Linux", "dateUpdated": "2026-08-15T05:58:34.606Z"}, "descriptions": [{"lang": "en", "value": "In the Linux kernel, the following vulnerability has been resolved:\n\nRDMA/irdma: Fix OOB read during CQ MR registration\n\nSashiko pointed out an unrelated bug during a previous patch:\nhttps://sashiko.dev/#/patchset/20260512183852.614045-1-jmoroni%40google.com\n\nThis change fixes the bug by eliminating the cqmr->split field which\nwas not being set properly and instead just checks the CQ resize\nfeature flag directly.\n\nThe cqmr->split field essentially tracks whether IRDMA_FEATURE_CQ_RESIZE\nis set, but it was not being set until CQ creation time, which is _after_\nCQ memory registration (the only other place where it is referenced).\n\nAs a result, it would always be false during MR registration and would\ntherefore cause irdma_handle_q_mem to populate cqmr->shadow even for GEN_2\nHW and beyond:\n\n cqmr->shadow = (dma_addr_t)arr[req->cq_pages];\n\nThe issue is that for GEN_2 and beyond, req->cq_pages may be exactly equal\nto iwmr->page_cnt and therefore equal to the size of arr, which would cause\nan OOB read by one."}], "affected": [{"product": "Linux", "vendor": "Linux", "defaultStatus": "unaffected", "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "programFiles": ["drivers/infiniband/hw/irdma/verbs.c", "drivers/infiniband/hw/irdma/verbs.h"], "versions": [{"version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "lessThan": "a80b3b13786e9ab1c52b31a1f16c7d6708fa9220", "status": "affected", "versionType": "git"}, {"version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "lessThan": "3159c6fac43dc24b34d31971884d98a7a1bf4c4b", "status": "affected", "versionType": "git"}, {"version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "lessThan": "ad360a31092a870633ec255b96f50181628b4de0", "status": "affected", "versionType": "git"}, {"version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "lessThan": "d566002de555b18cc395012c5c1cb8682fc6d2a9", "status": "affected", "versionType": "git"}, {"version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "lessThan": "54cab78df0375196aaec4e3109191653d21751df", "status": "affected", "versionType": "git"}, {"version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "lessThan": "d5aa82da8f65562da996d184686db9d0ea718b91", "status": "affected", "versionType": "git"}, {"version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "lessThan": "4385ddd654d90245eeb83b3cb539670ab5c85ba4", "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/irdma/verbs.c", "drivers/infiniband/hw/irdma/verbs.h"], "versions": [{"version": "5.14", "status": "affected"}, {"version": "0", "lessThan": "5.14", "status": "unaffected", "versionType": "semver"}, {"version": "5.15.212", "lessThanOrEqual": "5.15.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.1.178", "lessThanOrEqual": "6.1.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.6.145", "lessThanOrEqual": "6.6.*", "status": "unaffected", "versionType": "semver"}, {"version": "6.12.97", "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-rc1", "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": "5.14", "versionEndExcluding": "5.15.212"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.1.178"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.6.145"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.12.97"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "6.18.40"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "7.1.5"}, {"vulnerable": true, "criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*", "versionStartIncluding": "5.14", "versionEndExcluding": "7.2-rc1"}]}]}], "references": [{"url": "https://git.kernel.org/stable/c/a80b3b13786e9ab1c52b31a1f16c7d6708fa9220"}, {"url": "https://git.kernel.org/stable/c/3159c6fac43dc24b34d31971884d98a7a1bf4c4b"}, {"url": "https://git.kernel.org/stable/c/ad360a31092a870633ec255b96f50181628b4de0"}, {"url": "https://git.kernel.org/stable/c/d566002de555b18cc395012c5c1cb8682fc6d2a9"}, {"url": "https://git.kernel.org/stable/c/54cab78df0375196aaec4e3109191653d21751df"}, {"url": "https://git.kernel.org/stable/c/d5aa82da8f65562da996d184686db9d0ea718b91"}, {"url": "https://git.kernel.org/stable/c/4385ddd654d90245eeb83b3cb539670ab5c85ba4"}], "title": "RDMA/irdma: Fix OOB read during CQ MR registration", "x_generator": {"engine": "bippy-1.2.0"}}}}

{}

{"affected": [{"affectedData": [{"defaultStatus": "unaffected", "product": "Linux", "programFiles": ["drivers/infiniband/hw/irdma/verbs.c", "drivers/infiniband/hw/irdma/verbs.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"lessThan": "a80b3b13786e9ab1c52b31a1f16c7d6708fa9220", "status": "affected", "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "versionType": "git"}, {"lessThan": "3159c6fac43dc24b34d31971884d98a7a1bf4c4b", "status": "affected", "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "versionType": "git"}, {"lessThan": "ad360a31092a870633ec255b96f50181628b4de0", "status": "affected", "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "versionType": "git"}, {"lessThan": "d566002de555b18cc395012c5c1cb8682fc6d2a9", "status": "affected", "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "versionType": "git"}, {"lessThan": "54cab78df0375196aaec4e3109191653d21751df", "status": "affected", "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "versionType": "git"}, {"lessThan": "d5aa82da8f65562da996d184686db9d0ea718b91", "status": "affected", "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "versionType": "git"}, {"lessThan": "4385ddd654d90245eeb83b3cb539670ab5c85ba4", "status": "affected", "version": "b48c24c2d710cf34810c555dcef883a3d35a9c08", "versionType": "git"}]}, {"defaultStatus": "affected", "product": "Linux", "programFiles": ["drivers/infiniband/hw/irdma/verbs.c", "drivers/infiniband/hw/irdma/verbs.h"], "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git", "vendor": "Linux", "versions": [{"status": "affected", "version": "5.14"}, {"lessThan": "5.14", "status": "unaffected", "version": "0", "versionType": "semver"}, {"lessThanOrEqual": "5.15.*", "status": "unaffected", "version": "5.15.212", "versionType": "semver"}, {"lessThanOrEqual": "6.1.*", "status": "unaffected", "version": "6.1.178", "versionType": "semver"}, {"lessThanOrEqual": "6.6.*", "status": "unaffected", "version": "6.6.145", "versionType": "semver"}, {"lessThanOrEqual": "6.12.*", "status": "unaffected", "version": "6.12.97", "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-rc1", "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\nRDMA/irdma: Fix OOB read during CQ MR registration\n\nSashiko pointed out an unrelated bug during a previous patch:\nhttps://sashiko.dev/#/patchset/20260512183852.614045-1-jmoroni%40google.com\n\nThis change fixes the bug by eliminating the cqmr->split field which\nwas not being set properly and instead just checks the CQ resize\nfeature flag directly.\n\nThe cqmr->split field essentially tracks whether IRDMA_FEATURE_CQ_RESIZE\nis set, but it was not being set until CQ creation time, which is _after_\nCQ memory registration (the only other place where it is referenced).\n\nAs a result, it would always be false during MR registration and would\ntherefore cause irdma_handle_q_mem to populate cqmr->shadow even for GEN_2\nHW and beyond:\n\n cqmr->shadow = (dma_addr_t)arr[req->cq_pages];\n\nThe issue is that for GEN_2 and beyond, req->cq_pages may be exactly equal\nto iwmr->page_cnt and therefore equal to the size of arr, which would cause\nan OOB read by one."}], "id": "CVE-2026-74346", "lastModified": "2026-08-15T06:22:35.720", "metrics": {}, "published": "2026-08-15T06:22:35.720", "references": [{"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/3159c6fac43dc24b34d31971884d98a7a1bf4c4b"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/4385ddd654d90245eeb83b3cb539670ab5c85ba4"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/54cab78df0375196aaec4e3109191653d21751df"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/a80b3b13786e9ab1c52b31a1f16c7d6708fa9220"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/ad360a31092a870633ec255b96f50181628b4de0"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d566002de555b18cc395012c5c1cb8682fc6d2a9"}, {"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "url": "https://git.kernel.org/stable/c/d5aa82da8f65562da996d184686db9d0ea718b91"}], "sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67", "vulnStatus": "Received"}

{}

{}