spi: fix use-after-free of the add_lock mutex (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.22 % · percentile 12 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: spi: fix use-after-free of the add_lock mutex Commit 6098475d4cb4 ("spi: Fix deadlock when adding SPI controllers on SPI buses") introduced a per-controller mutex. But mutex_unlock() of said lock is called after the controller is already freed: spi_unregister_controller(ctlr) -> put_device(&ctlr->dev) -> spi_controller_release(dev) -> mutex_unlock(&ctrl->add_lock) Move the put_device() after the mutex_unlock().
Weaknesses (CWE)
- CWE-416 — Use After Free
References
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-2021-33843
- GCVE · GCVE-0-2021-47195
CERT-FR advisories
- CERTFR-2024-AVI-0420 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*> 5.15.0 < 5.15.5
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected aa3f3d7bef59583f2d3234173105a27ff61ef8fe < 54c2c96eafcfd242e52e932ab54ace4784efe1dd ; affected c8dce228db6f81dbc897a018dfc5c418e917cf64 < 11eab327a2a8bd36c38afbff920ae1bd45588dd4 ; affected 6098475d4cb48d821bdf453c61118c56e26294f0 < 37330f37f6666c7739a44b2b6b95b047ccdbed2d ; affected 6098475d4cb48d821bdf453c61118c56e26294f0 < 6c53b45c71b4920b5e62f0ea8079a1da382b9434 ; affected 722ef19a161ce3fffb3d1b01ce2301c306639bdd ; affected 5.14.15 < 5.15 |
| Linux · Linux | affected 5.15 ; unaffected 0 < 5.15 ; unaffected 5.15.5 ≤ 5.15.* ; unaffected 5.16 ≤ * |
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 |