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orangefs: fix double-free of trailer_buf on readdir copy failure

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: orangefs: fix double-free of trailer_buf on readdir copy failure On a readdir downcall, orangefs_devreq_write_iter() frees op->downcall.trailer_buf with vfree() when copy_from_iter_full() fails, but does not clear the pointer before goto Efault. The waiter in do_readdir() is then woken with a negative status and frees the same pointer again on its r < 0 path, causing a deterministic double-free. A client holding /dev/pvfs2-req triggers it by sending a readdir downcall whose declared trailer_size exceeds the bytes it supplies. Clear the pointer after freeing so the readdir-side vfree() becomes a no-op.

Announced Source revision 1
Original source ↗

CVE-2026-89498

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-2026-89498

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": "382f4581e67f57209c7aa67e39f26ba076306a2e",
        "lessThan": "712c4235fcc73c11a2f1d59a499d489e49c374a4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
        "lessThan": "433c2e470053cc9c712314d3d8c3dfbc862d68eb",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
        "lessThan": "6e5924644ef4bce06a3cbb7cb841a8bbfdfc03ad",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
        "lessThan": "9c9eacc47c618ed6d7d35fe75a40d294c8cdbffa",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
        "lessThan": "2f5454a25127854c232fde5d1d65d16fbcd42d43",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
        "lessThan": "f796f38a324e89547738f4b70cc33be5be2bc6da",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
        "lessThan": "519f4146b8b8c5f20c2ad01913acd6df2df8fc8e",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "382f4581e67f57209c7aa67e39f26ba076306a2e",
        "lessThan": "f574296be7f46eb60beca851240b526df232f480",
        "versionType": "git"
      }
    ],
    "programFiles": [
      "fs/orangefs/devorangefs-req.c"
    ],
    "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": "5.10.270",
        "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/orangefs/devorangefs-req.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-89498

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#35024 · Revision 1
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Publisher date
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