CVE-2024-42285 RDMA/iwcm: Fix a use-after-free related to destroying CM IDs

2024-08-1709:08:51

Linux

www.cve.org

linux kernel

vulnerability

rdma/iwcm

use-after-free

destroying

cm ids

conn_id

iw_cm_id

struct rdma_id_private

cm_work_handler

pending work

EPSS

Percentile

5.0%

JSON

In the Linux kernel, the following vulnerability has been resolved:

RDMA/iwcm: Fix a use-after-free related to destroying CM IDs

iw_conn_req_handler() associates a new struct rdma_id_private (conn_id) with
an existing struct iw_cm_id (cm_id) as follows:

    conn_id-&gt;cm_id.iw = cm_id;
    cm_id-&gt;context = conn_id;
    cm_id-&gt;cm_handler = cma_iw_handler;

rdma_destroy_id() frees both the cm_id and the struct rdma_id_private. Make
sure that cm_work_handler() does not trigger a use-after-free by only
freeing of the struct rdma_id_private after all pending work has finished.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/infiniband/core/iwcm.c"
    ],
    "versions": [
      {
        "version": "59c68ac31e15",
        "lessThan": "d91d253c87fd",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "59c68ac31e15",
        "lessThan": "7f25f296fc9b",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "59c68ac31e15",
        "lessThan": "94ee7ff99b87",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "59c68ac31e15",
        "lessThan": "557d035fe88d",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "59c68ac31e15",
        "lessThan": "dc8074b8901c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "59c68ac31e15",
        "lessThan": "ff5bbbdee082",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "59c68ac31e15",
        "lessThan": "ee39384ee787",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "59c68ac31e15",
        "lessThan": "aee2424246f9",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/infiniband/core/iwcm.c"
    ],
    "versions": [
      {
        "version": "4.8",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.8",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "4.19.320",
        "lessThanOrEqual": "4.19.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.4.282",
        "lessThanOrEqual": "5.4.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.10.224",
        "lessThanOrEqual": "5.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.165",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.103",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.44",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10.3",
        "lessThanOrEqual": "6.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.11",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]