CVE-2026-46043 RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv

🗓️ 27 May 2026 12:56:57Reported by LinuxType

Linux kernel RDMA rxe rxe_rcv validates paylen against header size, BTH pad and ICRC to prevent underflow.

Reporter	Title	Published	Views	Family All 104
ATTACKERKB	CVE-2026-46043	27 May 202612:56	–	attackerkb
Amazon	Important: kernel	22 Jun 202600:00	–	amazon
CNNVD	Linux kernel 安全漏洞	27 May 202600:00	–	cnnvd
CVE	CVE-2026-46043	27 May 202612:56	–	cve
Debian CVE	CVE-2026-46043	27 May 202612:56	–	debiancve
EUVD	EUVD-2026-32425	27 May 202612:56	–	euvd
Microsoft CVE	RDMA/rxe: Validate pad and ICRC before payload_size() in rxe_rcv	28 May 202608:07	–	mscve
NVD	CVE-2026-46043	27 May 202614:17	–	nvd
OPENSUSE Linux	kernel-devel-7.0.11-1.1 on GA media (moderate)	8 Jun 202600:00	–	opensuse
OSV	BELL-CVE-2026-46043	28 May 202606:10	–	osv

[
  {
    "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_recv.c"
    ],
    "versions": [
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "c4376c672c3648d5bdc31dfffc329d07164f93c4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "5fedefec757192dcaad29a664ac332c7601be144",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "2c0d71ef12f46c57d37bc571f3f2797db7eb50cc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "2fd4f8b749309a61c3f3f88ee8891d94f79e1240",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "f83519a4c122c9c7a850a2197648a9ff4c67c520",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "9b924f3a26b21330a837cfe72e819b6393bbeeaa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "e8ee0e792d475b1067c199ef0af1b6221fa6f43d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "8700e3e7c4857d28ebaa824509934556da0b3e76",
        "lessThan": "7244491dab347f648e661da96dc0febadd9daec3",
        "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_recv.c"
    ],
    "versions": [
      {
        "version": "4.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.8",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.258",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.209",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.175",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.140",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.86",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.27",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.4",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/2c0d71ef12f46c57d37bc571f3f2797db7eb50cc
git	www.git.kernel.org/stable/c/5fedefec757192dcaad29a664ac332c7601be144
git	www.git.kernel.org/stable/c/9b924f3a26b21330a837cfe72e819b6393bbeeaa
git	www.git.kernel.org/stable/c/f83519a4c122c9c7a850a2197648a9ff4c67c520
git	www.git.kernel.org/stable/c/c4376c672c3648d5bdc31dfffc329d07164f93c4
git	www.git.kernel.org/stable/c/7244491dab347f648e661da96dc0febadd9daec3
git	www.git.kernel.org/stable/c/2fd4f8b749309a61c3f3f88ee8891d94f79e1240
git	www.git.kernel.org/stable/c/e8ee0e792d475b1067c199ef0af1b6221fa6f43d

14 Jun 2026 17:50Current

CVSS 3.19.1

EPSS0.00521