Description
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).
Affected products
linux: linux kernel; debian: debian linux
References10
- www.openwall.com/lists/oss-security/2022/12/08/2 Mailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/12/08/3 Mailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/12/09/2 Mailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/12/08/2 Mailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/12/08/3 Mailing ListPatchThird Party Advisory
- www.openwall.com/lists/oss-security/2022/12/09/2 Mailing ListPatchThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/12/msg00031.html Mailing ListThird Party Advisory
- lists.debian.org/debian-lts-announce/2022/12/msg00034.html Mailing ListThird Party Advisory
- xenbits.xenproject.org/xsa/advisory-424.txt Third Party Advisory
- lists.debian.org/debian-lts-announce/2022/12/msg00031.html Mailing ListThird Party Advisory
Metrics
- CVSS 3.1
-
5.5
MEDIUM
Score source: NVD
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 0% percentile: 13 · as of 6 November 2026
- CWE
- CWE-667
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