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CVE-2026-99175 fsnotify: prevent mark additions during connector teardown

🗓️ 28 Oct 2026 10:35:29Reported by LinuxType 
cvelist
 cvelist
🔗 www.cve.org👁 3 Views

Race condition in Linux kernel fsnotify allows unprivileged fdinfo read to cause null-ptr deref.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
cve
CVE
CVE-2026-99175
28 Oct 202610:35
–cve
euvd
EUVD
EUVD-2026-111927
28 Oct 202610:35
–euvd
nvd
NVD
CVE-2026-99175
28 Oct 202611:17
–nvd
[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/notify/mark.c",
      "include/linux/fsnotify_backend.h"
    ],
    "versions": [
      {
        "version": "6b3f05d24d355f50f3d9814304650fcab0efb482",
        "lessThan": "952501bfc6e5e654ac4a17ec9d90c1ec614bd9f1",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6b3f05d24d355f50f3d9814304650fcab0efb482",
        "lessThan": "472589eacdf10b5f9bd10b333957ed5291b2544b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "6b3f05d24d355f50f3d9814304650fcab0efb482",
        "lessThan": "36ebddca56b9d8993d6dc984fdecc748ee1f5e06",
        "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/notify/mark.c",
      "include/linux/fsnotify_backend.h"
    ],
    "versions": [
      {
        "version": "4.12",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.12",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "6.18.59",
        "lessThanOrEqual": "6.18.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.2.13",
        "lessThanOrEqual": "7.2.*",
        "status": "unaffected",
        "versionType": "semver"
      },
      {
        "version": "7.3",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]

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