Possible deadlock in Linux kernel event handling (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 1.15 % · percentile 67 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- XEN
- NVD status
- Modified
Description
Closing of an event channel in the Linux kernel can result in a deadlock. This happens when the close is being performed in parallel to an unrelated Xen console action and the handling of a Xen console interrupt in an unprivileged guest. The closing of an event channel is e.g. triggered by removal of a paravirtual device on the other side. As this action will cause console messages to be issued on the other side quite often, the chance of triggering the deadlock is not neglectable. Note that 32-bit Arm-guests are not affected, as the 32-bit Linux kernel on Arm doesn't use queued-RW-locks, which are required to trigger the issue (on Arm32 a waiting writer doesn't block further readers to get the lock).
Weaknesses (CWE)
- CWE-400 — Uncontrolled Resource Consumption
References
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H | CISA-ADP |
| CVSS 3.1 | MEDIUM 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
| CVSS 3.1 | MEDIUM 4.9 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H | NVD · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
European references
- ENISA EUVD · EUVD-2023-38405
- GCVE · GCVE-0-2023-34324
CERT-FR advisories
- CERTFR-2024-AVI-0178 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0163 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0143 — Multiples vulnérabilités dans le noyau Linux Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0114 — Multiples vulnérabilités dans le noyau Linux Ubuntu · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0961 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0925 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0912 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0911 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0834 — Multiples vulnérabilités dans Xen · cert.ssi.gouv.fr
- CERTFR-2023-AVI-0823 — Multiples vulnérabilités dans les produits Citrix · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 5.10cpe:2.3:o:xen:xen:-:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | unknown consult Xen advisory XSA-441 |
Sources
| Source | Licence |
|---|---|
| CVE List (CVEProject cvelistV5) | CVE Program Terms of Use |
| EPSS (FIRST.org) | FIRST — attribution requested |
| ENISA EUVD | ENISA — reproduction authorised, source acknowledged |
| CERT-FR (ANSSI) | Licence Ouverte / Etalab 2.0 |
| NVD (NIST) via fkie-cad/nvd-json-data-feeds | Public domain — this product uses data from the NVD API but is not endorsed or certified by the NVD |