CVE-2026-43494

🗓️ 21 May 2026 10:49:21Reported by LinuxType

cve🔗 web.nvd.nist.gov📰️ 3 Media mentions👁 41 Views

Fix reset of op_nents when zerocopy page pin fails in rds_message_zcopy_from_user to avoid double free during rds_message_purge.

Reporter	Title	Published	Views	Family All 155
GithubExploit	Exploit for CVE-2026-43494	30 May 202611:44	–	githubexploit
GithubExploit	Exploit for CVE-2026-43494	25 May 202607:45	–	githubexploit
ATTACKERKB	CVE-2026-43494	21 May 202610:49	–	attackerkb
Tenable Nessus	Amazon Linux 2023 : bpftool, kernel, kernel-devel (ALAS2023-2026-1752)	27 May 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2023 : bpftool6.12, kernel6.12, kernel6.12-devel (ALAS2023-2026-1753)	27 May 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2023 : bpftool6.18, kernel6.18, kernel6.18-devel (ALAS2023-2026-1754)	27 May 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.10-2026-120 (ALASKERNEL-5.10-2026-120)	27 May 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.15-2026-104 (ALASKERNEL-5.15-2026-104)	27 May 202600:00	–	nessus
Tenable Nessus	Amazon Linux 2 : kernel, --advisory ALAS2KERNEL-5.4-2026-124 (ALASKERNEL-5.4-2026-124)	27 May 202600:00	–	nessus
Tenable Nessus	Debian dsa-6305 : ata-modules-6.12.90+deb13-armmp-di - security update	28 May 202600:00	–	nessus

Vulners

CNA

Node

linux linux_kernelRange4.17–5.10.258

linux linux_kernelRange5.11.0–5.15.209

linux linux_kernelRange5.16.0–6.1.175

linux linux_kernelRange6.2.0–6.6.141

linux linux_kernelRange6.7.0–6.12.91

linux linux_kernelRange6.13.0–6.18.33

linux linux_kernelRange6.19.0–7.0.10

linux linux_kernelRange7.1.0–7.1-rc4

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/rds/message.c"
    ],
    "versions": [
      {
        "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
        "lessThan": "c6e51512a784c4a7b86e1a044988696e3b3721fa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
        "lessThan": "03014551938a0887fa55f18ce49b70158a9c0113",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
        "lessThan": "d84ce1786ce40fdd3dd98db47aec5527817e1ef6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
        "lessThan": "9115669faedccdda100428e2d26fd0aac8c50799",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
        "lessThan": "0bbbff00a15b1df2cac9014d6cf4b6890f473353",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
        "lessThan": "640e37f58f991546a87540d067279c2c1fa9fe51",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
        "lessThan": "290e833d1acb1093bc121fcdc97f5e6161157479",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "0cebaccef3acbdfbc2d85880a2efb765d2f4e2e3",
        "lessThan": "e174929793195e0cd6a4adb0cad731b39f9019b4",
        "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/rds/message.c"
    ],
    "versions": [
      {
        "version": "4.17",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.17",
        "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": "6.6.141",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.91",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.33",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0.10",
        "lessThanOrEqual": "7.0.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1-rc4",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

Source	Link
github	www.github.com/v12-security/pocs/tree/main/pintheft
git	www.git.kernel.org/stable/c/9115669faedccdda100428e2d26fd0aac8c50799
git	www.git.kernel.org/stable/c/03014551938a0887fa55f18ce49b70158a9c0113
git	www.git.kernel.org/stable/c/d84ce1786ce40fdd3dd98db47aec5527817e1ef6
git	www.git.kernel.org/stable/c/c6e51512a784c4a7b86e1a044988696e3b3721fa
git	www.git.kernel.org/stable/c/e174929793195e0cd6a4adb0cad731b39f9019b4
git	www.git.kernel.org/stable/c/640e37f58f991546a87540d067279c2c1fa9fe51
git	www.git.kernel.org/stable/c/290e833d1acb1093bc121fcdc97f5e6161157479
git	www.git.kernel.org/stable/c/0bbbff00a15b1df2cac9014d6cf4b6890f473353
openwall	www.openwall.com/lists/oss-security/2026/05/21/2

12 Jun 2026 10:16Current

5.7Medium risk

Vulners AI Score5.7

CVSS 3.17.8

EPSS0.00013