CVE-2026-64004

🗓️ 19 Jul 2026 14:56:20Reported by LinuxType

Linux kernel fixes getsockopt locking for IUCV to prevent race dereferencing NULL iucv device.

Reporter	Title	Published	Views	Family All 6
Cvelist	CVE-2026-64004 net/iucv: fix locking in .getsockopt	19 Jul 202614:56	–	cvelist
EUVD	EUVD-2026-45577	19 Jul 202614:56	–	euvd
NVD	CVE-2026-64004	19 Jul 202616:17	–	nvd
OSV	CVE-2026-64004 net/iucv: fix locking in .getsockopt	19 Jul 202614:56	–	osv
OSV	DEBIAN-CVE-2026-64004	19 Jul 202616:17	–	osv
Positive Technologies	PT-2026-61321	19 Jul 202600:00	–	ptsecurity

Vulners

CNA

Node

linux linux_kernelRange3.4–5.10.259

linux linux_kernelRange5.11.0–5.15.210

linux linux_kernelRange5.16.0–6.1.176

linux linux_kernelRange6.2.0–6.6.143

linux linux_kernelRange6.7.0–6.12.93

linux linux_kernelRange6.13.0–6.18.35

linux linux_kernelRange6.19.0–7.0.12

linux linux_kernelRange7.1.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/iucv/af_iucv.c"
    ],
    "versions": [
      {
        "version": "51363b8751a673a00ad48eea895266396d53fa52",
        "lessThan": "884eb247b74d86db97e3a37f0d6fc8e1e83590dd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "51363b8751a673a00ad48eea895266396d53fa52",
        "lessThan": "45bb8de8c95d8899f4b8f61bd9bceb8132af73cb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "51363b8751a673a00ad48eea895266396d53fa52",
        "lessThan": "1fc30bd4e55e2dd622d2d366cecd732c1841bbee",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "51363b8751a673a00ad48eea895266396d53fa52",
        "lessThan": "cd691beafea0dd779e69e81ccc26b0ab50efcb5e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "51363b8751a673a00ad48eea895266396d53fa52",
        "lessThan": "6e792b8dd3002bbc4136745928a9605df1a72b8a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "51363b8751a673a00ad48eea895266396d53fa52",
        "lessThan": "9817369243380e287ebe5525411557eaa3aa2a79",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "51363b8751a673a00ad48eea895266396d53fa52",
        "lessThan": "69554adc7a6fa04ede3ad7512321d83748e3c920",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "51363b8751a673a00ad48eea895266396d53fa52",
        "lessThan": "3589d20a666caf30ad100c960a2de7de390fce88",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/iucv/af_iucv.c"
    ],
    "versions": [
      {
        "version": "3.4",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.4",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.259",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.210",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.176",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.143",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.93",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.35",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.12",
        "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/3589d20a666caf30ad100c960a2de7de390fce88
git	www.git.kernel.org/stable/c/45bb8de8c95d8899f4b8f61bd9bceb8132af73cb
git	www.git.kernel.org/stable/c/6e792b8dd3002bbc4136745928a9605df1a72b8a
git	www.git.kernel.org/stable/c/69554adc7a6fa04ede3ad7512321d83748e3c920
git	www.git.kernel.org/stable/c/884eb247b74d86db97e3a37f0d6fc8e1e83590dd
git	www.git.kernel.org/stable/c/9817369243380e287ebe5525411557eaa3aa2a79
git	www.git.kernel.org/stable/c/1fc30bd4e55e2dd622d2d366cecd732c1841bbee
git	www.git.kernel.org/stable/c/cd691beafea0dd779e69e81ccc26b0ab50efcb5e

19 Jul 2026 16:17Current

5.4Medium risk

Vulners AI Score5.4