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CVE-2026-46063

🗓️ 27 May 2026 12:57:27Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 10 Views

CVE-2026-46063 fixes deadlock in x86 shadow stack during sigreturn by avoiding mmap lock and using speculative checks.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
ATTACKERKB
CVE-2026-46063
27 May 202612:57
attackerkb
CNNVD
Linux kernel 安全漏洞
27 May 202600:00
cnnvd
Cvelist
CVE-2026-46063 x86/shstk: Prevent deadlock during shstk sigreturn
27 May 202612:57
cvelist
Debian CVE
CVE-2026-46063
27 May 202612:57
debiancve
EUVD
EUVD-2026-32445
27 May 202612:57
euvd
NVD
CVE-2026-46063
27 May 202614:17
nvd
OSV
BELL-CVE-2026-46063
28 May 202606:10
osv
OSV
DEBIAN-CVE-2026-46063
27 May 202614:17
osv
OSV
ROOT-OS-UBUNTU-2404-CVE-2026-46063 CVE-2026-46063 in rootio-linux - Patched by Root
3 Jun 202607:40
osv
OSV
UBUNTU-CVE-2026-46063
27 May 202614:17
osv
Rows per page
Vulners
CNA
Node
linuxlinux_kernelRange6.66.6.140
OR
linuxlinux_kernelRange6.7.06.12.88
OR
linuxlinux_kernelRange6.13.06.18.27
OR
linuxlinux_kernelRange6.19.07.0.4
OR
linuxlinux_kernelRange7.1.07.1-rc1
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "arch/x86/Kconfig",
      "arch/x86/kernel/shstk.c"
    ],
    "versions": [
      {
        "version": "7fad2a432cd35bbf104d2d9d426e74902f22aa95",
        "lessThan": "e2c2b044458cbf22da05264fa707308e8d4f86f9",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7fad2a432cd35bbf104d2d9d426e74902f22aa95",
        "lessThan": "d042d69b417515959e49021fef008c9b04a99bd5",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7fad2a432cd35bbf104d2d9d426e74902f22aa95",
        "lessThan": "4f3374c990fb2adec06d20fd6d780927811c9aa0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7fad2a432cd35bbf104d2d9d426e74902f22aa95",
        "lessThan": "3d29db827502067626062f5c74dd502d14ab15bc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "7fad2a432cd35bbf104d2d9d426e74902f22aa95",
        "lessThan": "9874b2917b9fbc30956fee209d3c4aa47201c64e",
        "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/x86/Kconfig",
      "arch/x86/kernel/shstk.c"
    ],
    "versions": [
      {
        "version": "6.6",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.6",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.140",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.88",
        "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"
      }
    ]
  }
]

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27 May 2026 14:48Current
5.8Medium risk
Vulners AI Score5.8
EPSS0.00024
10