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CVE-2026-31411 net: atm: fix crash due to unvalidated vcc pointer in sigd_send()

🗓️ 08 Apr 2026 13:06:17Reported by LinuxType 
cvelist
 cvelist🔗 www.cve.org👁 20 Views

Linux fix crash by validating untrusted vcc pointer in sigd_send with find_get_vcc and sock_hold.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB		CVE-2026-31411
8 Apr 202613:06
–attackerkb
AlmaLinux		Important: kernel security, bug fix, and enhancement update
29 Jun 202600:00
–almalinux
AstraLinux		Astra Linux – Vulnerability found in Linux 6.1, Linux 6.12
24 Jun 202615:11
–astralinux
BDU FSTEC		The vulnerability of the sigd_send() function in Linux operating system kernels, which allows a hacker to trigger a service failure
13 Apr 202600:00
–bdu_fstec
Circl		CVE-2026-31411
8 Apr 202614:19
–circl
CNNVD		Linux kernel 安全漏洞
8 Apr 202600:00
–cnnvd
CVE		CVE-2026-31411
8 Apr 202613:06
–cve
Debian		[SECURITY] [DLA 4561-1] linux-6.1 security update
2 May 202608:40
–debian
Debian		[SECURITY] [DLA 4606-1] linux security update
29 May 202616:36
–debian
Debian		[SECURITY] [DSA 6238-1] linux security update
30 Apr 202620:05
–debian
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "net/atm/signaling.c"
    ],
    "versions": [
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "c96549d07dfdd51aadf0722cfb40711574424840",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "1c8bda3df028d5e54134077dcd09f46ca8cfceb5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "3e1a8b00095246a9a2b46b57f6d471c6d3c00ed2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "e3f80666c2739296c3b69a127300455c43aa1067",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "21c303fec138c002f90ed33bce60e807d53072bb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "69d3f9ee5489e6e8b66defcfa226e91d82393297",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "440c9a5fc477a8ee259d8bf669531250b8398651",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "1da177e4c3f41524e886b7f1b8a0c1fc7321cac2",
        "lessThan": "ae88a5d2f29b69819dc7b04086734439d074a643",
        "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/atm/signaling.c"
    ],
    "versions": [
      {
        "version": "2.6.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "2.6.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.10.252",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.202",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.165",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.128",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.75",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.14",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.19.4",
        "lessThanOrEqual": "6.19.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.0",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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11 May 2026 22:08Current
EPSS0.00125
unvalidated vcc pointersigd_send crashatm signaling daemonfind_get_vcc validationsock_hold referencelinux kernel fix
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