can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.16 % · percentile 6 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: can: mcp251x: fix deadlock if an interrupt occurs during mcp251x_open The mcp251x_hw_wake() function is called with the mpc_lock mutex held and disables the interrupt handler so that no interrupts can be processed while waking the device. If an interrupt has already occurred then waiting for the interrupt handler to complete will deadlock because it will be trying to acquire the same mutex. CPU0 CPU1 ---- ---- mcp251x_open() mutex_lock(&priv->mcp_lock) request_threaded_irq() <interrupt> mcp251x_can_ist() mutex_lock(&priv->mcp_lock) mcp251x_hw_wake() disable_irq() <-- deadlock Use disable_irq_nosync() instead because the interrupt handler does everything while holding the mutex so it doesn't matter if it's still running.
Weaknesses (CWE)
- CWE-667 — Improper Locking
References
- https://git.kernel.org/stable/c/3a49b6b1caf5cefc05264d29079d52c99cb188e0
- https://git.kernel.org/stable/c/513c8fc189b52f7922e36bdca58997482b198f0e
- https://git.kernel.org/stable/c/f7ab9e14b23a3eac6714bdc4dba244d8aa1ef646
- https://git.kernel.org/stable/c/8fecde9c3f9a4b97b68bb97c9f47e5b662586ba7
- https://git.kernel.org/stable/c/e554113a1cd2a9cfc6c7af7bdea2141c5757e188
- https://git.kernel.org/stable/c/7dd9c26bd6cf679bcfdef01a8659791aa6487a29
- https://lists.debian.org/debian-lts-announce/2025/01/msg00001.html
- https://lists.debian.org/debian-lts-announce/2024/10/msg00003.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-2024-42052
- GCVE · GCVE-0-2024-46791
CERT-FR advisories
- CERTFR-2025-AVI-0677 — Multiples vulnérabilités dans les produits Siemens · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0022 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0002 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1080 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-1013 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0997 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0872 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0870 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2024-AVI-0837 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.226cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.167cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 6.1.110cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.2 < 6.6.51cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.7 < 6.10.10cpe:2.3:o:linux:linux_kernel:6.11:rc1:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc2:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc3:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc4:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc5:*:*:*:*:*:*cpe:2.3:o:linux:linux_kernel:6.11:rc6:*:*:*:*:*:*
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 8ce8c0abcba314e1fe954a1840f6568bf5aef2ef < 3a49b6b1caf5cefc05264d29079d52c99cb188e0 ; affected 8ce8c0abcba314e1fe954a1840f6568bf5aef2ef < 513c8fc189b52f7922e36bdca58997482b198f0e ; affected 8ce8c0abcba314e1fe954a1840f6568bf5aef2ef < f7ab9e14b23a3eac6714bdc4dba244d8aa1ef646 ; affected 8ce8c0abcba314e1fe954a1840f6568bf5aef2ef < 8fecde9c3f9a4b97b68bb97c9f47e5b662586ba7 ; affected 8ce8c0abcba314e1fe954a1840f6568bf5aef2ef < e554113a1cd2a9cfc6c7af7bdea2141c5757e188 ; affected 8ce8c0abcba314e1fe954a1840f6568bf5aef2ef < 7dd9c26bd6cf679bcfdef01a8659791aa6487a29 |
| Linux · Linux | affected 5.5 ; unaffected 0 < 5.5 ; unaffected 5.10.226 ≤ 5.10.* ; unaffected 5.15.167 ≤ 5.15.* ; unaffected 6.1.110 ≤ 6.1.* ; unaffected 6.6.51 ≤ 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 |