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CVE-2026-74378 RDMA/rxe: Fix TOCTOU heap overflow in get_srq_wqe

🗓️ 15 Aug 2026 05:58:56Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 6 Views

TOCTOU race in Linux kernel RDMA get_srq_wqe allows heap overflow via userspace-modified num_sge.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
ATTACKERKB
CVE-2026-74378
15 Aug 202605:58
attackerkb
cve
CVE
CVE-2026-74378
15 Aug 202600:00
cve
debiancve
Debian CVE
CVE-2026-74378
15 Aug 202600:00
debiancve
euvd
EUVD
EUVD-2026-59525
15 Aug 202605:58
euvd
nvd
NVD
CVE-2026-74378
15 Aug 202606:22
nvd
osv
OSV
DEBIAN-CVE-2026-74378
15 Aug 202606:22
osv
ptsecurity
Positive Technologies
PT-2026-72814
15 Aug 202600:00
ptsecurity
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/infiniband/sw/rxe/rxe_resp.c"
    ],
    "versions": [
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "3cfa2a3adc51b7c57729961a03446962ff10e3d2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "cd19a6345e3727adafafa5954b58b13c92e13b80",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "3e07ea9579dc9553d2285c26c2823931358aa3b8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "02558c86b6b761063e9399e6b939984500327ef1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "b9800d7953d119bcc068c74587d48e4ba0313629",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "22b8fbded65b8c441b634a185f8da67657df6c50",
        "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/sw/rxe/rxe_resp.c"
    ],
    "versions": [
      {
        "version": "4.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.8",
        "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"
      }
    ]
  }
]

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