CVE-2022-42328

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).

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

EPSS

0.2% chance of exploitation in the next 30 days; higher than 12% of CVEs (scores of 2026-10-25)

CWE

CWE-667

Published

2022-12-07

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• linux:linux_kernel

References

• http://www.openwall.com/lists/oss-security/2022/12/08/2
• http://www.openwall.com/lists/oss-security/2022/12/08/3
• http://www.openwall.com/lists/oss-security/2022/12/09/2
• https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
• https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html

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