CVE-2024-38545 RDMA/hns: Fix UAF for cq async event

2024-06-1913:35:19

Linux

www.cve.org

cve-2024-38545

rdma/hns

uaf

async event

linux kernel

vulnerability

EPSS

Percentile

5.0%

JSON

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

RDMA/hns: Fix UAF for cq async event

The refcount of CQ is not protected by locks. When CQ asynchronous
events and CQ destruction are concurrent, CQ may have been released,
which will cause UAF.

Use the xa_lock() to protect the CQ refcount.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/infiniband/hw/hns/hns_roce_cq.c"
    ],
    "versions": [
      {
        "version": "9a4435375cd1",
        "lessThan": "763780ef0336",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9a4435375cd1",
        "lessThan": "63da190eeb5c",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9a4435375cd1",
        "lessThan": "39d26cf46306",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9a4435375cd1",
        "lessThan": "37a7559dc135",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "9a4435375cd1",
        "lessThan": "a942ec2745ca",
        "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/hw/hns/hns_roce_cq.c"
    ],
    "versions": [
      {
        "version": "4.9",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "4.9",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.93",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.33",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.12",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9.3",
        "lessThanOrEqual": "6.9.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.10",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]