CVE-2022-42328

2022-12-0700:00:00

XEN

www.cve.org

guests

deadlock

linux

netback driver

xsa-392

patch

skb

packet

netpoll

interface

xen-netback driver

cve-2022-42328

cve-2022-42329

6.7 Medium

AI Score

Confidence

High

0.0004 Low

EPSS

Percentile

14.3%

JSON

Guests can trigger deadlock in Linux netback driver T[his CNA information record relates to multiple CVEs; the text explains which aspects/vulnerabilities correspond to which CVE.] The patch for XSA-392 introduced another issue which might result in a deadlock when trying to free the SKB of a packet dropped due to the XSA-392 handling (CVE-2022-42328). Additionally when dropping packages for other reasons the same deadlock could occur in case of netpoll being active for the interface the xen-netback driver is connected to (CVE-2022-42329).

CNA Affected

[
  {
    "vendor": "Linux",
    "product": "Linux",
    "versions": [
      {
        "version": "consult Xen advisory XSA-424",
        "status": "unknown"
      }
    ]
  }
]