CVE-2026-43493

🗓️ 19 May 2026 10:44:25Reported by LinuxType

Linux kernel crypto pcrypt fix for MAY_BACKLOG requests by filtering out in progress and handling device busy errors.

Reporter	Title	Published	Views	Family All 30
ATTACKERKB	CVE-2026-43493	19 May 202610:44	–	attackerkb
Circl	CVE-2026-43493	19 May 202612:44	–	circl
CNNVD	Linux kernel 安全漏洞	19 May 202600:00	–	cnnvd
Cvelist	CVE-2026-43493 crypto: pcrypt - Fix handling of MAY_BACKLOG requests	19 May 202610:44	–	cvelist
Debian CVE	CVE-2026-43493	19 May 202610:44	–	debiancve
EUVD	EUVD-2026-30884	19 May 202610:44	–	euvd
Mageia	Updated kernel, kmod-virtualbox & kmod-xtables-addons packages fix security vulnerabilities	5 Jun 202617:37	–	mageia
Mageia	Updated kernel-linus packages fix security vulnerabilities	6 Jun 202605:36	–	mageia
NVD	CVE-2026-43493	19 May 202612:16	–	nvd
OSV	BELL-CVE-2026-43493	20 May 202606:10	–	osv

Vulners

CNA

Node

linux linux_kernelRange2.6.34–5.10.258

linux linux_kernelRange5.11.0–5.15.209

linux linux_kernelRange5.16.0–6.1.175

linux linux_kernelRange6.2.0–6.6.140

linux linux_kernelRange6.7.0–6.12.86

linux linux_kernelRange6.13.0–6.18.27

linux linux_kernelRange6.19.0–7.0.4

linux linux_kernelRange7.1.0–7.1-rc1

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "crypto/pcrypt.c"
    ],
    "versions": [
      {
        "version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
        "lessThan": "ae7e95638d956d556d74b9abb9e780d3bd3dcd9e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
        "lessThan": "1d7f07df450bac3301938fbc4251f2611be4084e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
        "lessThan": "76641449b28979ebd6c02e9598367e119e385236",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
        "lessThan": "9f1cbca178c03188e201ed175251372149bb25f2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
        "lessThan": "eb34e243df57e32f4c08fa191f3602ea19076276",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
        "lessThan": "77d55bc8675ee851ed639dc9be77325a8024cf67",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
        "lessThan": "46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "5a1436beec5744029f3ac90b6fe71a698dcd6155",
        "lessThan": "915b692e6cb723aac658c25eb82c58fd81235110",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "crypto/pcrypt.c"
    ],
    "versions": [
      {
        "version": "2.6.34",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.34",
        "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-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
git	www.git.kernel.org/stable/c/9f1cbca178c03188e201ed175251372149bb25f2
git	www.git.kernel.org/stable/c/77d55bc8675ee851ed639dc9be77325a8024cf67
git	www.git.kernel.org/stable/c/eb34e243df57e32f4c08fa191f3602ea19076276
git	www.git.kernel.org/stable/c/1d7f07df450bac3301938fbc4251f2611be4084e
git	www.git.kernel.org/stable/c/915b692e6cb723aac658c25eb82c58fd81235110
git	www.git.kernel.org/stable/c/ae7e95638d956d556d74b9abb9e780d3bd3dcd9e
git	www.git.kernel.org/stable/c/46271895ddfb1ba41f89f7e0dffbe9c2bcf7380a
git	www.git.kernel.org/stable/c/76641449b28979ebd6c02e9598367e119e385236

01 Jun 2026 17:17Current

5.8Medium risk

Vulners AI Score5.8

CVSS 3.19.8

EPSS0.0007