CVE-2024-38545

2024-06-1914:15:14

416baaa9-dc9f-4396-8d5f-8c081fb06d67

web.nvd.nist.gov

linux kernel

vulnerability

rdma/hns

uaf

async event

xa_lock

6.7 Medium

AI Score

Confidence

Low

0.0004 Low

EPSS

Percentile

15.7%

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.

Affected configurations

Vulners

Node

linuxlinux_kernelRange4.9–6.1.93

linuxlinux_kernelRange6.2.0–6.6.33

linuxlinux_kernelRange6.7.0–6.8.12

linuxlinux_kernelRange6.9.0–6.9.3

linuxlinux_kernelRange6.10.0–6.10-rc1

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-rc1",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]