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CVE-2026-98921

🗓️ 23 Oct 2026 12:02:38Reported by LinuxType 
cve
 cve
🔗 web.nvd.nist.gov👁 6 Views

UAF in Linux kernel ovl_do_mkdir() debug print when CONFIG_OVERLAY_FS_DEBUG is enabled.

Related
Detection
Affected
Refs
ReporterTitlePublishedViews
Family
circl
Circl
CVE-2026-98921
23 Oct 202612:42
–circl
cvelist
Cvelist
CVE-2026-98921 ovl: fix UAF in ovl_do_mkdir() debug print
23 Oct 202612:02
–cvelist
debiancve
Debian CVE
CVE-2026-98921
23 Oct 202612:02
–debiancve
euvd
EUVD
EUVD-2026-108885
23 Oct 202612:02
–euvd
nvd
NVD
CVE-2026-98921
23 Oct 202613:17
–nvd
osv_debian
osv_debian
DEBIAN-CVE-2026-98921
23 Oct 202613:17
–osv_debian
ptsecurity
Positive Technologies
PT-2026-121893
23 Oct 202600:00
–ptsecurity
Vulners
CNA
Node
OR
linuxlinux_kernelRange6.19–7.2.9
linuxlinux_kernelRange7.3.0≥
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/overlayfs/overlayfs.h"
    ],
    "versions": [
      {
        "version": "fe497f0759e0efb949f9480911d00b6045c21f50",
        "lessThan": "719bd33ab359c539a68a278c15a97deb77565cdb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "fe497f0759e0efb949f9480911d00b6045c21f50",
        "lessThan": "ae146bc1abdeb4607abf2975b858c053024e8ac1",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/overlayfs/overlayfs.h"
    ],
    "versions": [
      {
        "version": "6.19",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.19",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.9",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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23 Oct 2026 13:17Current
6.2Medium risk
Vulners AI Score6.2
EPSS0.00198
6