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High

fanotify: fix false positive on permission events

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: fanotify: fix false positive on permission events fsnotify_get_mark_safe() may return false for a mark on an unrelated group, which results in bypassing the permission check. Fix by skipping over detached marks that are not in the current group.

Announced Group revision 1
Original source ↗

CVE-2026-46150

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-46150

Linux

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Linux

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "abc77577a669f424c5d0c185b9994f2621c52aa4",
        "lessThan": "a24765332e129c1916d5a6615418b75599b8fcdc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "abc77577a669f424c5d0c185b9994f2621c52aa4",
        "lessThan": "4a7611ad653785fcdea5ff5f4441e2b7d05b7f11",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "abc77577a669f424c5d0c185b9994f2621c52aa4",
        "lessThan": "04bb66be92f48ed13c3faf1139d892df228789bc",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "abc77577a669f424c5d0c185b9994f2621c52aa4",
        "lessThan": "895ebbedf88318607c24acc0f591c74b165e1d0a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "abc77577a669f424c5d0c185b9994f2621c52aa4",
        "lessThan": "f130790f1acc8399f32652846c875a251efd040f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "abc77577a669f424c5d0c185b9994f2621c52aa4",
        "lessThan": "7baa02b0ae9d17ec5f08836d8ea88ce1927d0678",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "abc77577a669f424c5d0c185b9994f2621c52aa4",
        "lessThan": "b7b24b28c8cd55844cab908f4f39dded638d5538",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "abc77577a669f424c5d0c185b9994f2621c52aa4",
        "lessThan": "7746e3bd4cc19b5092e00d32d676e329bfcb6900",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/notify/fsnotify.c",
      "fs/notify/mark.c",
      "include/linux/fsnotify_backend.h"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "4.12"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "4.12",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.258",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.209",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.175",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.140",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.88",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.30",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.0.7",
        "versionType": "semver",
        "lessThanOrEqual": "7.0.*"
      },
      {
        "status": "unaffected",
        "version": "7.1",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/notify/fsnotify.c",
      "fs/notify/mark.c",
      "include/linux/fsnotify_backend.h"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-46150

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#40144 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-46150 · Revision 1Source updated