CVE-2024-26964 usb: xhci: Add error handling in xhci_map_urb_for_dma

2024-05-0105:19:28

Linux

www.cve.org

linux kernel

usb

xhci

vulnerability

error handling

memory allocation

crash

memcpy

null pointer

cve-2024-26964

AI Score

7.7

Confidence

High

EPSS

Percentile

10.3%

JSON

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

usb: xhci: Add error handling in xhci_map_urb_for_dma

Currently xhci_map_urb_for_dma() creates a temporary buffer and copies
the SG list to the new linear buffer. But if the kzalloc_node() fails,
then the following sg_pcopy_to_buffer() can lead to crash since it
tries to memcpy to NULL pointer.

So return -ENOMEM if kzalloc returns null pointer.

CNA Affected

[
  {
    "product": "Linux",
    "vendor": "Linux",
    "defaultStatus": "unaffected",
    "repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
    "programFiles": [
      "drivers/usb/host/xhci.c"
    ],
    "versions": [
      {
        "version": "2017a1e58472",
        "lessThan": "4a49d24fdec0",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2017a1e58472",
        "lessThan": "b2c898469dfc",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2017a1e58472",
        "lessThan": "620b6cf2f1a2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2017a1e58472",
        "lessThan": "962300a360d2",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2017a1e58472",
        "lessThan": "7b6cc33593d7",
        "status": "affected",
        "versionType": "git"
      },
      {
        "version": "2017a1e58472",
        "lessThan": "be95cc6d71df",
        "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/usb/host/xhci.c"
    ],
    "versions": [
      {
        "version": "5.11",
        "status": "affected"
      },
      {
        "version": "0",
        "lessThan": "5.11",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "5.15.154",
        "lessThanOrEqual": "5.15.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.1.84",
        "lessThanOrEqual": "6.1.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.6.24",
        "lessThanOrEqual": "6.6.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.7.12",
        "lessThanOrEqual": "6.7.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.8.3",
        "lessThanOrEqual": "6.8.*",
        "status": "unaffected",
        "versionType": "custom"
      },
      {
        "version": "6.9",
        "lessThanOrEqual": "*",
        "status": "unaffected",
        "versionType": "original_commit_for_fix"
      }
    ]
  }
]