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).
References (6)
Core 6
Core References
Third Party Advisory
https://xenbits.xenproject.org/xsa/advisory-424.txt
Mailing List, Patch, Third Party Advisory mailing-list
http://www.openwall.com/lists/oss-security/2022/12/08/3
Mailing List, Patch, Third Party Advisory mailing-list
http://www.openwall.com/lists/oss-security/2022/12/08/2
Mailing List, Patch, Third Party Advisory mailing-list
http://www.openwall.com/lists/oss-security/2022/12/09/2
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
Mailing List, Third Party Advisory mailing-list
https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
Scores
CVSS v3
5.5
EPSS
0.0003
EPSS Percentile
9.2%
Attack Vector
LOCAL
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-667
Status
published
Products (2)
debian/debian_linux
10.0
linux/linux_kernel
< 6.0
Published
Dec 07, 2022
Tracked Since
Feb 18, 2026