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).
Fix
Patch, vendor advisory and mitigation references on NVD 6
- http://www.openwall.com/lists/oss-security/2022/12/08/2 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/08/3 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/09/2 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/08/2 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/08/3 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/09/2 Mailing List, Patch, Third Party Advisory
Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.
Change history 1
- First seenCVSS 5.5 · linux, debianNVD modified 2026-10-14 19:16
Affected (CPE criteria) 2
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
References 14
- http://www.openwall.com/lists/oss-security/2022/12/08/2 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/08/3 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/09/2 Mailing List, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html Mailing List, Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-424.txt Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/08/2 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/08/3 Mailing List, Patch, Third Party Advisory
- http://www.openwall.com/lists/oss-security/2022/12/09/2 Mailing List, Patch, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html Mailing List, Third Party Advisory
- https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html Mailing List, Third Party Advisory
- https://xenbits.xenproject.org/xsa/advisory-424.txt Third Party Advisory
- https://cert-portal.siemens.com/productcert/html/ssa-625862.html
- https://cert-portal.siemens.com/productcert/html/ssa-794697.html