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CVE-2026-89956 s390/vfio-ap: Fix missing lock required to access list of ap_matrix_mdev objects

🗓️ 16 Sep 2026 10:32:39Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 38 Views

Linux kernel s390/vfio-ap missing lock on ap_matrix_mdev list causing use-after-free.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-89956
16 Sep 202610:32
–cve
debiancve
Debian CVE
CVE-2026-89956
16 Sep 202610:32
–debiancve
euvd
EUVD
EUVD-2026-80556
16 Sep 202610:32
–euvd
mscve
Microsoft CVE
s390/vfio-ap: Fix missing lock required to access list of ap_matrix_mdev objects
17 Sep 202608:09
–mscve
nvd
NVD
CVE-2026-89956
16 Sep 202611:17
–nvd
osv
OSV
AZL-101556 CVE-2026-89956 affecting package kernel 6.6.157.1-1
16 Sep 202611:17
–osv
osv
OSV
BELL-CVE-2026-89956
18 Sep 202606:05
–osv
osv
OSV
DEBIAN-CVE-2026-89956
16 Sep 202611:17
–osv
osv
OSV
OPENSUSE-SU-2026:11880-1 kernel-devel-7.2.7-1.1 on GA media
24 Sep 202600:00
–osv
osv
OSV
UBUNTU-CVE-2026-89956
16 Sep 202611:17
–osv
Rows per page
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/s390/crypto/vfio_ap_ops.c"
    ],
    "versions": [
      {
        "version": "2c1ee8983aa377fef4f725162f4f3aa5f9575d4a",
        "lessThan": "530ee1cc71562b6799b9ece187b6c1b757a2c6fa",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c1ee8983aa377fef4f725162f4f3aa5f9575d4a",
        "lessThan": "647916988272fe5ecb4bb30cd02b51af9960618a",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c1ee8983aa377fef4f725162f4f3aa5f9575d4a",
        "lessThan": "0fd74477d05743d4cd9b25a3b667daa278d53b93",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2c1ee8983aa377fef4f725162f4f3aa5f9575d4a",
        "lessThan": "7fa61c29850d05e40ca9ed41bfdf57673023f581",
        "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/s390/crypto/vfio_ap_ops.c"
    ],
    "versions": [
      {
        "version": "6.0",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.0",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.112",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.51",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.5",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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