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CVE-2026-72380 xen/pvcalls: bound backend response req_id before indexing rsp[]

🗓️ 15 Aug 2026 05:56:12Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 51 Views

Xen pvcalls frontend allows backend-supplied req_id to overflow rsp[] array, enabling OOB write and frontend disable.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cnnvd
CNNVD
Linux Kernel Security Vulnerabilities
15 Aug 202600:00
–cnnvd
cve
CVE
CVE-2026-72380
15 Aug 202605:56
–cve
debian
Debian
[SECURITY] [DSA 6602-1] linux security update
2 Nov 202616:13
–debian
debiancve
Debian CVE
CVE-2026-72380
15 Aug 202605:56
–debiancve
euvd
EUVD
EUVD-2026-59279
15 Aug 202605:56
–euvd
mscve
Microsoft CVE
xen/pvcalls: bound backend response req_id before indexing rsp[]
23 Oct 202608:13
–mscve
nvd
NVD
CVE-2026-72380
15 Aug 202606:22
–nvd
osv_azl
osv_azl
AZL-110423 CVE-2026-72380 affecting package kernel 6.6.159.1-1
15 Aug 202606:22
–osv_azl
osv_bell
osv_bell
BELL-CVE-2026-72380
18 Aug 202606:06
–osv_bell
osv_cve
osv_cve
CVE-2026-72380 xen/pvcalls: bound backend response req_id before indexing rsp[]
15 Aug 202605:56
–osv_cve
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/xen/pvcalls-front.c"
    ],
    "versions": [
      {
        "version": "2195046bfd69e487d9a76dc47840f15c8412840c",
        "lessThan": "4aaf7f32f1569e2c0475e073b8d7ec63b231d4c6",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2195046bfd69e487d9a76dc47840f15c8412840c",
        "lessThan": "72e27ef70a20298e60a1de438f3628c515dea895",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2195046bfd69e487d9a76dc47840f15c8412840c",
        "lessThan": "ede7a60b046d8b7288651c55198574ed7c259da7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2195046bfd69e487d9a76dc47840f15c8412840c",
        "lessThan": "bc8f2d1c6f7cf6e6551c00eb582baf4b52a04794",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2195046bfd69e487d9a76dc47840f15c8412840c",
        "lessThan": "d1297a9e2fd6ce08678b370d41bc980ca798f809",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2195046bfd69e487d9a76dc47840f15c8412840c",
        "lessThan": "d33846c8dcc06b83b7acdeac1e8bfbb5c0c26cb2",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/xen/pvcalls-front.c"
    ],
    "versions": [
      {
        "version": "4.15",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.15",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.191",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.160",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.114",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.57",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.5",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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