PCI/ASPM: Fix link state exit during switch upstream function removal (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.23 % · percentile 14 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Modified
Description
In the Linux kernel, the following vulnerability has been resolved: PCI/ASPM: Fix link state exit during switch upstream function removal Before 456d8aa37d0f ("PCI/ASPM: Disable ASPM on MFD function removal to avoid use-after-free"), we would free the ASPM link only after the last function on the bus pertaining to the given link was removed. That was too late. If function 0 is removed before sibling function, link->downstream would point to free'd memory after. After above change, we freed the ASPM parent link state upon any function removal on the bus pertaining to a given link. That is too early. If the link is to a PCIe switch with MFD on the upstream port, then removing functions other than 0 first would free a link which still remains parent_link to the remaining downstream ports. The resulting GPFs are especially frequent during hot-unplug, because pciehp removes devices on the link bus in reverse order. On that switch, function 0 is the virtual P2P bridge to the internal bus. Free exactly when function 0 is removed -- before the parent link is obsolete, but after all subordinate links are gone. [kwilczynski: commit log]
Weaknesses (CWE)
- CWE-416 — Use After Free
References
- https://git.kernel.org/stable/c/0a0f9aecf66b98959aab7fb5764b4b3e522f4f5b
- https://git.kernel.org/stable/c/62db339ecc3d58d8fd83a9e4d80061cd943bb6e2
- https://git.kernel.org/stable/c/e5cd58f61e9d8024ee11bd78c12c8916891d4077
- https://git.kernel.org/stable/c/cd4b07507794f7ad1a74e12eca75121d98187e66
- https://git.kernel.org/stable/c/8b930ddc2044e36866c41423e89889e0258695a3
- https://git.kernel.org/stable/c/f556b6ba0ac5f8353287ce6ed761228f0b4fafb7
- https://git.kernel.org/stable/c/ba4cdc14c0d4df00d3e99bff7fe545303db98183
- https://git.kernel.org/stable/c/4d96930239981f312821a4065db8cc0f8240a173
- https://git.kernel.org/stable/c/cbf937dcadfd571a434f8074d057b32cd14fbea5
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H | NVD · nvd@nist.gov (Primary) |
European references
- ENISA EUVD · EUVD-2025-11276
- GCVE · GCVE-0-2024-58093
CERT-FR advisories
- CERTFR-2025-AVI-0969 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0758 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0756 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0743 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0721 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0625 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0622 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0605 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0589 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0559 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0529 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0509 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0482 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0465 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0449 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected configurations (NVD CPE)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.4.251 < 5.5cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.10.188 < 5.11cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.15.121 < 5.16cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.1.39 < 6.2cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.3.13 < 6.4cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 6.4.4 < 6.15
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 666e7f9d60cee23077ea3e6331f6f8a19f7ea03f < 0a0f9aecf66b98959aab7fb5764b4b3e522f4f5b ; affected 7badf4d6f49a358a01ab072bbff88d3ee886c33b < 62db339ecc3d58d8fd83a9e4d80061cd943bb6e2 ; affected 9856c0de49052174ab474113f4ba40c02aaee086 < e5cd58f61e9d8024ee11bd78c12c8916891d4077 ; affected 7aecdd47910c51707696e8b0e045b9f88bd4230f < cd4b07507794f7ad1a74e12eca75121d98187e66 ; affected 456d8aa37d0f56fc9e985e812496e861dcd6f2f2 < 8b930ddc2044e36866c41423e89889e0258695a3 ; affected 456d8aa37d0f56fc9e985e812496e861dcd6f2f2 < f556b6ba0ac5f8353287ce6ed761228f0b4fafb7 |
| Linux · Linux | affected 6.5 ; unaffected 0 < 6.5 ; unaffected 5.4.292 ≤ 5.4.* ; unaffected 5.10.236 ≤ 5.10.* ; unaffected 5.15.180 ≤ 5.15.* ; unaffected 6.1.134 ≤ 6.1.* |
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 |