CVE-2026-46064

🗓️ 27 May 2026 12:57:30Reported by LinuxType

Resolved heap over-read in ibmasm_send_i2o_message by validating command_size and clamping to I2O.

Reporter	Title	Published	Views	Family All 101
ATTACKERKB	CVE-2026-46064	27 May 202612:57	–	attackerkb
CBLMariner	CVE-2026-46064 affecting package kernel for versions less than 6.6.141.1-1	22 Jun 202621:21	–	cbl_mariner
Circl	CVE-2026-46064	2 Jul 202606:49	–	circl
CNNVD	Linux kernel 安全漏洞	27 May 202600:00	–	cnnvd
Cvelist	CVE-2026-46064 ibmasm: fix heap over-read in ibmasm_send_i2o_message()	27 May 202612:57	–	cvelist
Debian	[SECURITY] [DLA 4664-1] linux security update	3 Jul 202615:51	–	debian
Debian	[SECURITY] [DLA 4665-1] linux security update	3 Jul 202618:38	–	debian
Debian	[SECURITY] [DLA 4671-1] linux-6.1 security update	5 Jul 202618:24	–	debian
Debian CVE	CVE-2026-46064	27 May 202612:57	–	debiancve
Tenable Nessus	Debian dla-4664 : ata-modules-5.10.0-43-armmp-di - security update	3 Jul 202600:00	–	nessus

NVD

Vulners

CNA

Node

linux linux_kernelRange2.6.12.1–5.10.258

linux linux_kernelRange5.11–5.15.209

linux linux_kernelRange5.16–6.1.175

linux linux_kernelRange6.2–6.6.140

linux linux_kernelRange6.7–6.12.86

linux linux_kernelRange6.13–6.18.27

linux linux_kernelRange6.19–7.0.4

linux linux_kernelMatch2.6.12-

linux linux_kernelMatch2.6.12rc2

linux linux_kernelMatch2.6.12rc3

linux linux_kernelMatch2.6.12rc4

linux linux_kernelMatch2.6.12rc5

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/misc/ibmasm/lowlevel.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "ca1c857e2bb74a9fc0606128334f85316d57067b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "b870f652877bfbe321bd0f4096fc37a93296f7b6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "ce57fa439bd1b5d664f334a0c3e3f0e42abb0153",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "fd19eb1c75047a4ed4e855f56cafd704dc3914e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "fe31722b0194ff76bf8b461e8bf97a2081147787",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "c1c2417c60dbdca5ebb00462f21ee71c2d7f7083",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "9e8f6c9d4ecddda2f28baa1678340286cff3969c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "9aad71144fa3682cca3837a06c8623016790e7ec",
        "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/misc/ibmasm/lowlevel.c"
    ],
    "versions": [
      {
        "version": "2.6.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.12",
        "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/ce57fa439bd1b5d664f334a0c3e3f0e42abb0153
git	www.git.kernel.org/stable/c/9aad71144fa3682cca3837a06c8623016790e7ec
git	www.git.kernel.org/stable/c/fe31722b0194ff76bf8b461e8bf97a2081147787
git	www.git.kernel.org/stable/c/c1c2417c60dbdca5ebb00462f21ee71c2d7f7083
git	www.git.kernel.org/stable/c/ca1c857e2bb74a9fc0606128334f85316d57067b
git	www.git.kernel.org/stable/c/b870f652877bfbe321bd0f4096fc37a93296f7b6
git	www.git.kernel.org/stable/c/fd19eb1c75047a4ed4e855f56cafd704dc3914e0
git	www.git.kernel.org/stable/c/9e8f6c9d4ecddda2f28baa1678340286cff3969c

24 Jun 2026 17:08Current

5.8Medium risk

Vulners AI Score5.8

CVSS 3.17.1

EPSS0.00139

CWE-125