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CVE-2026-80548 s390/vfio_ccw: Selectively expand io_mutex

🗓️ 26 Aug 2026 14:37:18Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 42 Views

Linux kernel s390/vfio_ccw race condition from insufficient io_mutex locking scope.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-80548
26 Aug 202614:37
–cve
debian
Debian
[SECURITY] [DLA 4777-1] linux security update
8 Sep 202616:49
–debian
debian
Debian
[SECURITY] [DLA 4788-1] linux-6.12 security update
19 Sep 202620:44
–debian
debiancve
Debian CVE
CVE-2026-80548
26 Aug 202614:37
–debiancve
nessus
Tenable Nessus
Debian dla-4777 : ata-modules-6.1.0-52-armmp-di - security update
8 Sep 202600:00
–nessus
nessus
Tenable Nessus
Debian dla-4788 : ata-modules-6.12.100+deb12-armmp-di - security update
21 Sep 202600:00
–nessus
nessus
Tenable Nessus
Linux Distros Unpatched Vulnerability : CVE-2026-80548
26 Aug 202600:00
–nessus
euvd
EUVD
EUVD-2026-66463
27 Aug 202606:31
–euvd
nvd
NVD
CVE-2026-80548
26 Aug 202615:17
–nvd
osv
OSV
BELL-CVE-2026-80548
29 Aug 202606:03
–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/cio/vfio_ccw_chp.c",
      "drivers/s390/cio/vfio_ccw_cp.c",
      "drivers/s390/cio/vfio_ccw_drv.c",
      "drivers/s390/cio/vfio_ccw_fsm.c",
      "drivers/s390/cio/vfio_ccw_private.h"
    ],
    "versions": [
      {
        "version": "4f76617378ee97c557b526cb58d3c61eb0a9c963",
        "lessThan": "dab6a6627b0b0cce23653e99c7b0bf8c6cfd82e0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4f76617378ee97c557b526cb58d3c61eb0a9c963",
        "lessThan": "56d7488533ceac4e986e96e15c9e487a2245bc01",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4f76617378ee97c557b526cb58d3c61eb0a9c963",
        "lessThan": "f72a51810d49411bd8cad0c2df8592320a2fe5cc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4f76617378ee97c557b526cb58d3c61eb0a9c963",
        "lessThan": "2ba9efdf9ebedc4e54df4b56aa3b43a65f7967cd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4f76617378ee97c557b526cb58d3c61eb0a9c963",
        "lessThan": "b6aecea4b2b246f9fbd98a5712daa1193a60818e",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4f76617378ee97c557b526cb58d3c61eb0a9c963",
        "lessThan": "2a5ac0c0f1f7da33929211a2e41911bf72ee35d8",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "4f76617378ee97c557b526cb58d3c61eb0a9c963",
        "lessThan": "34f4feff3e90bd09308fad0974e97113b23b812a",
        "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/cio/vfio_ccw_chp.c",
      "drivers/s390/cio/vfio_ccw_cp.c",
      "drivers/s390/cio/vfio_ccw_drv.c",
      "drivers/s390/cio/vfio_ccw_fsm.c",
      "drivers/s390/cio/vfio_ccw_private.h"
    ],
    "versions": [
      {
        "version": "5.2",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.2",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "5.15.218",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.1.185",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.6.153",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.12.105",
        "lessThanOrEqual": "6.12.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.46",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.1.10",
        "lessThanOrEqual": "7.1.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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27 Aug 2026 12:40Current
CVSS 3.18.8
EPSS0.00176
42