CVE-2025-40193

🗓️ 12 Nov 2025 21:56:31Reported by LinuxType

Xtensa simdisk proc_write_simdisk vulnerability fixes input size; memdup_user_nul could crash kernel.

Reporter	Title	Published	Views	Family All 170
AstraLinux	Astra Linux - уязвимость в linux-6.1	20 May 202605:53	–	astralinux
CBLMariner	CVE-2025-40193 affecting package kernel for versions less than 6.6.117.1-1	15 Dec 202516:03	–	cbl_mariner
Circl	CVE-2025-40193	3 Dec 202514:14	–	circl
CNNVD	Linux kernel 安全漏洞	12 Nov 202500:00	–	cnnvd
Cvelist	CVE-2025-40193 xtensa: simdisk: add input size check in proc_write_simdisk	12 Nov 202521:56	–	cvelist
Debian	[SECURITY] [DLA 4379-1] linux-6.1 security update	25 Nov 202517:19	–	debian
Debian CVE	CVE-2025-40193	12 Nov 202521:56	–	debiancve
Tenable Nessus	Debian dla-4379 : linux-config-6.1 - security update	25 Nov 202500:00	–	nessus
Tenable Nessus	Photon OS 5.0: Linux PHSA-2025-5.0-0655	24 Oct 202500:00	–	nessus
Tenable Nessus	Ubuntu 25.10 : Linux kernel vulnerabilities (USN-8029-1)	13 Feb 202600:00	–	nessus

Vulners

CNA

Node

linux linux_kernelRange3.9–6.1.157

linux linux_kernelRange6.2.0–6.6.113

linux linux_kernelRange6.7.0–6.12.54

linux linux_kernelRange6.13.0–6.17.4

linux linux_kernelRange6.18.0≥

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/xtensa/platforms/iss/simdisk.c"
    ],
    "versions": [
      {
        "version": "b6c7e873daf765e41233b9752083b66442703b7a",
        "lessThan": "f40405ccfb87b71175f2d5d004c0b8a0aebcc2cf",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6c7e873daf765e41233b9752083b66442703b7a",
        "lessThan": "151bd88859474cdaccc1e4c8b21fbf72dbba2ab4",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6c7e873daf765e41233b9752083b66442703b7a",
        "lessThan": "d381de7fd4cdc928ede96987dc64b133e6480dd6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6c7e873daf765e41233b9752083b66442703b7a",
        "lessThan": "a0c2c36d864ef3676b05cfd8c58b72ee3214cb1a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "b6c7e873daf765e41233b9752083b66442703b7a",
        "lessThan": "5d5f08fd0cd970184376bee07d59f635c8403f63",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/xtensa/platforms/iss/simdisk.c"
    ],
    "versions": [
      {
        "version": "3.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "3.9",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.157",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.113",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.54",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.17.4",
        "lessThanOrEqual": "6.17.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/f40405ccfb87b71175f2d5d004c0b8a0aebcc2cf
git	www.git.kernel.org/stable/c/151bd88859474cdaccc1e4c8b21fbf72dbba2ab4
git	www.git.kernel.org/stable/c/5d5f08fd0cd970184376bee07d59f635c8403f63
git	www.git.kernel.org/stable/c/d381de7fd4cdc928ede96987dc64b133e6480dd6
git	www.git.kernel.org/stable/c/a0c2c36d864ef3676b05cfd8c58b72ee3214cb1a

11 May 2026 21:44Current

6Medium risk

Vulners AI Score6

EPSS0.00029