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RDMA/cm: Fix leaking the multicast GID table reference

Type: advisorySource: Official CVE List1 source record

In the Linux kernel, the following vulnerability has been resolved: RDMA/cm: Fix leaking the multicast GID table reference If the CM ID is destroyed while the CM event for multicast creating is still queued the cancel_work_sync() will prevent the work from running which also prevents destroying the ah_attr. This leaks a refcount and triggers a WARN: GID entry ref leak for dev syz1 index 2 ref=573 WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 release_gid_table drivers/infiniband/core/cache.c:806 [inline] WARNING: CPU: 1 PID: 655 at drivers/infiniband/core/cache.c:809 gid_table_release_one+0x284/0x3cc drivers/infiniband/core/cache.c:886 Destroy the ah_attr after canceling the work, it is safe to call this twice.

Announced Group revision 1
Original source ↗

CVE-2025-71084

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-2025-71084

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": "60d613b39e8d0c9f3b526e9c96445422b4562d76",
        "lessThan": "d5ce588a9552878859a4d44b70b724216c188a5f",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
        "lessThan": "abf38398724ecc888f62c678d288da40d11878af",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
        "lessThan": "ab668a58c4a2ccb6d54add7a76f2f955d15d0196",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
        "lessThan": "c0acdee513239e1d6e1b490f56be0e6837dfd162",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
        "lessThan": "5cb34bb5fd726491b809efbeb5cfd63ae5bf9cf3",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
        "lessThan": "3ba6d01c4b3c584264dc733c6a2ecc5bbc8e0bb5",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "fe454dc31e84f8c14cb8942fcb61666c9f40745b",
        "lessThan": "57f3cb6c84159d12ba343574df2115fb18dd83ca",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "a3262b3884dd67b4c5632ce7cdf9cff9d1a575d4",
        "versionType": "git"
      },
      {
        "status": "affected",
        "version": "5.10.20",
        "lessThan": "5.10.248",
        "versionType": "semver"
      },
      {
        "status": "affected",
        "version": "5.11.3",
        "lessThan": "5.12",
        "versionType": "semver"
      }
    ],
    "programFiles": [
      "drivers/infiniband/core/cma.c"
    ],
    "defaultStatus": "unaffected"
  },
  {
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "status": "affected",
        "version": "5.12"
      },
      {
        "status": "unaffected",
        "version": "0",
        "lessThan": "5.12",
        "versionType": "semver"
      },
      {
        "status": "unaffected",
        "version": "5.10.248",
        "versionType": "semver",
        "lessThanOrEqual": "5.10.*"
      },
      {
        "status": "unaffected",
        "version": "5.15.198",
        "versionType": "semver",
        "lessThanOrEqual": "5.15.*"
      },
      {
        "status": "unaffected",
        "version": "6.1.160",
        "versionType": "semver",
        "lessThanOrEqual": "6.1.*"
      },
      {
        "status": "unaffected",
        "version": "6.6.120",
        "versionType": "semver",
        "lessThanOrEqual": "6.6.*"
      },
      {
        "status": "unaffected",
        "version": "6.12.64",
        "versionType": "semver",
        "lessThanOrEqual": "6.12.*"
      },
      {
        "status": "unaffected",
        "version": "6.18.4",
        "versionType": "semver",
        "lessThanOrEqual": "6.18.*"
      },
      {
        "status": "unaffected",
        "version": "6.19",
        "versionType": "original_commit_for_fix",
        "lessThanOrEqual": "*"
      }
    ],
    "programFiles": [
      "drivers/infiniband/core/cma.c"
    ],
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2025-71084

Source reference: /cveMetadata/cveId

Publisher severity

No explicit severity was provided.

Event
#39142 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2025-71084 · Revision 1Source updated