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CVE-2025-21876

🗓️ 27 Mar 2025 14:57:06Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 136 Views

Fix for CVE-2025-21876 resolves a suspicious RCU usage in Linux kernel iommu driver code.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
astralinux
AstraLinux
Astra Linux – vulnerability in linux-6.12
16 Jun 202511:28
–astralinux
bdu_fstec
BDU FSTEC
Linux kernel DoS
7 Apr 202500:00
–bdu_fstec
cnnvd
CNNVD
Linux Kernel Security Vulnerabilities
27 Mar 202500:00
–cnnvd
cvelist
Cvelist
CVE-2025-21876 iommu/vt-d: Fix suspicious RCU usage
27 Mar 202514:57
–cvelist
debiancve
Debian CVE
CVE-2025-21876
27 Mar 202514:57
–debiancve
oraclelinux
Oracle linux
Unbreakable Enterprise kernel security update
17 Jul 202500:00
–oraclelinux
oraclelinux
Oracle linux
Unbreakable Enterprise kernel security update
18 Aug 202500:00
–oraclelinux
euvd
EUVD
EUVD-2025-8492
3 Oct 202520:07
–euvd
nvd
NVD
CVE-2025-21876
27 Mar 202515:15
–nvd
nessus
Tenable Nessus
Oracle Linux 10 / 9 : Unbreakable Enterprise kernel (ELSA-2025-20480)
18 Jul 202500:00
–nessus
Rows per page
NVD
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.10–6.12.18
linuxlinux_kernelRange6.13–6.13.6
linuxlinux_kernelMatch6.14rc1
linuxlinux_kernelMatch6.14rc2
linuxlinux_kernelMatch6.14rc3
linuxlinux_kernelMatch6.14rc4
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/iommu/intel/dmar.c",
      "drivers/iommu/intel/iommu.c"
    ],
    "versions": [
      {
        "version": "d74169ceb0d2e32438946a2f1f9fc8c803304bd6",
        "lessThan": "4117c72938493a77ab53cc4b8284be8fb6ec8065",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d74169ceb0d2e32438946a2f1f9fc8c803304bd6",
        "lessThan": "c603ccbe91d189849e1439134598ec567088dcec",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "d74169ceb0d2e32438946a2f1f9fc8c803304bd6",
        "lessThan": "b150654f74bf0df8e6a7936d5ec51400d9ec06d8",
        "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/iommu/intel/dmar.c",
      "drivers/iommu/intel/iommu.c"
    ],
    "versions": [
      {
        "version": "6.10",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.10",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.18",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.13.6",
        "lessThanOrEqual": "6.13.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.14",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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15 Oct 2026 22:18Current
6Medium risk
Vulners AI Score6
CVSS 3.15.5 - 8.8
EPSS0.00216
SSVC
136