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).
CVE-2022-42329
Score 5.5 from GitHub Security Advisory published 2022-12-07. NVD baseline CVSS 5.5; sources differ by 0.0.
- Lower severity and no public exploit yet
A fix is available — apply it.
- CVSS v3
- 5.5
- EG Score
- 5.5(medium)
- EG Risk
- 25(Track)EG Risk 25/100SSVC: Track
EG Risk is EchelonGraph's 0–100 priority score: it fuses intrinsic severity with real-world exploitation and automatability so you can rank equal-severity CVEs and fix the most dangerous first. Higher = act sooner. Distinct from the 0–10 EG Score (severity).
How it’s computedSeverity55% × 45%Exploitation0% × 40%Automatability0% × 15%Action: Routine — remediate on your standard cadence. - EPSS
- 11.3%
- KEV
- Not listed
Published
December 7, 2022
Last Modified
April 23, 2025
References (12)
- security@xenhttp://www.openwall.com/lists/oss-security/2022/12/08/2
- security@xenhttp://www.openwall.com/lists/oss-security/2022/12/08/3
- security@xenhttp://www.openwall.com/lists/oss-security/2022/12/09/2
- security@xenhttps://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
- security@xenhttps://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- security@xenhttps://xenbits.xenproject.org/xsa/advisory-424.txt
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2022/12/08/2
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2022/12/08/3
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2022/12/09/2
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/12/msg00031.html
- af854a3a-2127-422b-91ae-364da2661108https://lists.debian.org/debian-lts-announce/2022/12/msg00034.html
- af854a3a-2127-422b-91ae-364da2661108https://xenbits.xenproject.org/xsa/advisory-424.txt
Patch Availability(20)
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
All Vendor Advisories
(21)
Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.
- Microsoft MSRCCVE-2022-423292022-12-13
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).
- UbuntuUSN-5912-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-5917-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-5919-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-5920-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-5924-1MEDIUM
Linux kernel (Azure) vulnerabilities
- UbuntuUSN-5925-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-5927-1MEDIUM
Linux kernel (Azure) vulnerabilities
- UbuntuUSN-5934-1MEDIUM
Linux kernel (Raspberry Pi) vulnerabilities
- UbuntuUSN-5935-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-5938-1MEDIUM
Linux kernel (GKE) vulnerabilities
- UbuntuUSN-5939-1MEDIUM
Linux kernel (GCP) vulnerabilities
- UbuntuUSN-5940-1MEDIUM
Linux kernel (Raspberry Pi) vulnerabilities
- UbuntuUSN-5941-1MEDIUM
Linux kernel (KVM) vulnerabilities
- UbuntuUSN-5951-1MEDIUM
Linux kernel (IBM) vulnerabilities
- UbuntuUSN-5962-1MEDIUM
Linux kernel (Intel IoTG) vulnerabilities
- UbuntuUSN-5970-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-5975-1MEDIUM
Linux kernel vulnerabilities
- UbuntuUSN-5979-1MEDIUM
Linux kernel (HWE) vulnerabilities
- UbuntuUSN-6000-1MEDIUM
Linux kernel (BlueField) vulnerabilities
- UbuntuUSN-6007-1MEDIUM
Linux kernel (GCP) vulnerabilities
Data Freshness Timeline
(refreshed 12× in last 7d / 44× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-23 02:14 UTCEG score recompute
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- 2026-05-25 11:08 UTCEG score recompute
- 2026-05-25 11:08 UTCVendor advisory
- 2026-05-25 11:07 UTCGHSA enrichment
Related CVEs(same vendor + same CWE)
Same vendor
10 shownubuntu · msrc
Same CWE
10 shownCWE-667
Frequently asked(5)
What is CVE-2022-42329?
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What is the CVSS score of CVE-2022-42329?
How do I remediate CVE-2022-42329?
Dependency Blast Radius
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