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ecryptfs: hold msg ctx list lock when cleaning daemon queue

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: ecryptfs: hold msg ctx list lock when cleaning daemon queue ecryptfs_exorcise_daemon() drops queued messages from a dying daemon without holding ecryptfs_msg_ctx_lists_mux, but ecryptfs_msg_ctx_alloc_to_free() requires that lock. Take the list lock while moving the queued contexts back to the free list to avoid racing with other global msg ctx list users.

Announced Source revision 1
Original source ↗

CVE-2026-89609

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-2026-89609

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": "f66e883eb6186bc43a79581b67aff7d1a69d0ff1",
        "lessThan": "64d8998e36cfd2bb7114f3af0aa51c5a559a39b3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f66e883eb6186bc43a79581b67aff7d1a69d0ff1",
        "lessThan": "4d50b8aea11ad9594c8704a4c647e11311ab7b19",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f66e883eb6186bc43a79581b67aff7d1a69d0ff1",
        "lessThan": "956541efd125a10442f9514668bc5c852702c93b",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f66e883eb6186bc43a79581b67aff7d1a69d0ff1",
        "lessThan": "ec1627bcb5b51ddd46b1ef27a9d5a9834abb0a6a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f66e883eb6186bc43a79581b67aff7d1a69d0ff1",
        "lessThan": "7e48afafe7abc275f7b6916613bb18b821e7d94a",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f66e883eb6186bc43a79581b67aff7d1a69d0ff1",
        "lessThan": "0d9636ecba34bd553ecf19049f7705505aea62fd",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f66e883eb6186bc43a79581b67aff7d1a69d0ff1",
        "lessThan": "4c02acbe0a2692ca9991c51e62bbe6d6b59dac31",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "f66e883eb6186bc43a79581b67aff7d1a69d0ff1",
        "lessThan": "779972513c2fa8c7938e54976f686091dafff22f",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/ecryptfs/messaging.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "2.6.26"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "2.6.26",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.270",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.221",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.188",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.157",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.109",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.50",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "7.2.4",
        "versionType": "semver",
        "lessThanOrEqual": "7.2.*"
      },
      {
        "status": "unaffected",
        "version": "7.3",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "fs/ecryptfs/messaging.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89609

Source reference: /cveMetadata/cveId

Publisher severity

high

Source reference: /containers/cna/metrics

Event
#35116 · Revision 1
Added to Heist Feed
Publisher date
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