CVE-2022-42328: Medium severity Linux Linux kernel vulnerability
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 Software
Remediation
Recommended actions to resolve this vulnerability, in priority order.
- Upgrade
Upgrade
debian/linuxto a version that resolves this vulnerability.Fixed in 5.10.223-1Fixed in 5.10.234-1Fixed in 6.1.129-1Fixed in 6.1.135-1Fixed in 6.12.22-1Fixed in 6.12.25-1
Event History
Frequently Asked Questions
What is the severity of CVE-2022-42328?
CVE-2022-42328 has been classified with a moderate severity level due to the potential for triggering deadlocks in the Linux netback driver.
How do I fix CVE-2022-42328?
To fix CVE-2022-42328, users should upgrade to the specified patched versions of the Linux kernel that mitigate this vulnerability.
Which systems are affected by CVE-2022-42328?
CVE-2022-42328 affects various versions of the Linux kernel, including those used in Debian Linux 10.0 and prior versions up to 6.0.
What is the impact of CVE-2022-42328?
The impact of CVE-2022-42328 allows guests to induce a deadlock condition when freeing packet SKB, potentially leading to a denial of service.
Is CVE-2022-42328 specific to any Linux distributions?
Yes, CVE-2022-42328 has been identified in multiple Linux distributions, notably in the Debian Linux environment.