vfio/fsl-mc: Block calling interrupt handler without trigger (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 13 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Analyzed
Description
In the Linux kernel, the following vulnerability has been resolved: vfio/fsl-mc: Block calling interrupt handler without trigger The eventfd_ctx trigger pointer of the vfio_fsl_mc_irq object is initially NULL and may become NULL if the user sets the trigger eventfd to -1. The interrupt handler itself is guaranteed that trigger is always valid between request_irq() and free_irq(), but the loopback testing mechanisms to invoke the handler function need to test the trigger. The triggering and setting ioctl paths both make use of igate and are therefore mutually exclusive. The vfio-fsl-mc driver does not make use of irqfds, nor does it support any sort of masking operations, therefore unlike vfio-pci and vfio-platform, the flow can remain essentially unchanged.
Weaknesses (CWE)
- CWE-476 — NULL Pointer Dereference
References
- https://git.kernel.org/stable/c/a563fc18583ca4f42e2fdd0c70c7c618288e7ede
- https://git.kernel.org/stable/c/250219c6a556f8c69c5910fca05a59037e24147d
- https://git.kernel.org/stable/c/083e750c9f5f4c3bf61161330fb84d7c8e8bb417
- https://git.kernel.org/stable/c/ee0bd4ad780dfbb60355b99f25063357ab488267
- https://git.kernel.org/stable/c/de87511fb0404d23b6da5f4660383b6ed095e28d
- https://git.kernel.org/stable/c/6ec0d88166dac43f29e96801c0927d514f17add9
- https://git.kernel.org/stable/c/7447d911af699a15f8d050dfcb7c680a86f87012
- https://lists.debian.org/debian-lts-announce/2024/06/msg00017.html
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | MEDIUM 5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2024-24076
- GCVE · GCVE-0-2024-26814
CERT-FR advisories
- CERTFR-2024-AVI-0799 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0717 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0693 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0645 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0633 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0632 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0611 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0546 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0527 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0381 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0334 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10 < 6.1.84cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.24cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.7.12cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.8 < 6.8.3cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.8.4 ≤ 6.8.12cpe:2.3:o:debian:debian_linux:10.0:*:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected cc0ee20bd96971c10eba9a83ecf1c0733078a083 < a563fc18583ca4f42e2fdd0c70c7c618288e7ede ; affected cc0ee20bd96971c10eba9a83ecf1c0733078a083 < 250219c6a556f8c69c5910fca05a59037e24147d ; affected cc0ee20bd96971c10eba9a83ecf1c0733078a083 < 083e750c9f5f4c3bf61161330fb84d7c8e8bb417 ; affected cc0ee20bd96971c10eba9a83ecf1c0733078a083 < ee0bd4ad780dfbb60355b99f25063357ab488267 ; affected cc0ee20bd96971c10eba9a83ecf1c0733078a083 < de87511fb0404d23b6da5f4660383b6ed095e28d ; affected cc0ee20bd96971c10eba9a83ecf1c0733078a083 < 6ec0d88166dac43f29e96801c0927d514f17add9 |
| Linux · Linux | affected 5.10 ; unaffected 0 < 5.10 ; unaffected 5.10.215 ≤ 5.10.* ; unaffected 5.15.154 ≤ 5.15.* ; unaffected 6.1.84 ≤ 6.1.* ; unaffected 6.6.24 ≤ 6.6.* |
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 |