CVE-2024-46686 smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()

2024-09-1305:29:17

Linux

www.cve.org

linux kernel

smb/client

cve-2024-46686

vulnerability

rdma

smb2_read

rdma_readwrite_threshold

EPSS

Percentile

5.1%

JSON

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

smb/client: avoid dereferencing rdata=NULL in smb2_new_read_req()

This happens when called from SMB2_read() while using rdma
and reaching the rdma_readwrite_threshold.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/client/smb2pdu.c"
    ],
    "versions": [
      {
        "version": "edf38e9f4269",
        "lessThan": "6df57c63c200",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a6559cc1d35d",
        "lessThan": "a01859dd6aeb",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a6559cc1d35d",
        "lessThan": "b902fb78ab21",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "a6559cc1d35d",
        "lessThan": "c724b2ab6a46",
        "status": "affected",
        "versionType": "git"
      }
    ]
  },
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "affected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "fs/smb/client/smb2pdu.c"
    ],
    "versions": [
      {
        "version": "6.3",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "6.3",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.108",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.49",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10.8",
        "lessThanOrEqual": "6.10.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.11",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]