vduse: hold vduse_lock across IDR lookup in open path (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.13 % · percentile 2 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: vduse: hold vduse_lock across IDR lookup in open path vduse_dev_open() looks up struct vduse_dev through the IDR and then acquires dev->lock only after vduse_lock has been dropped. This leaves a window where a concurrent VDUSE_DESTROY_DEV can remove the same object from the IDR and free it before the open path locks the device, leading to a use-after-free. Close this race by keeping vduse_lock held until dev->lock has been acquired in the open path, matching the lock ordering already used by the destroy path.
References
- https://git.kernel.org/stable/c/35483c5306e09b3190ff937089d404a78012695c
- https://git.kernel.org/stable/c/5c1560be8aa6849356455af67518d35c551cbd95
- https://git.kernel.org/stable/c/93ed4692f2299a40346025979f40e4a9b7b33af7
- https://git.kernel.org/stable/c/d94e2947203aead590fd63f667d316d4475d65af
- https://git.kernel.org/stable/c/a2d0a57538fd0b3b3ab75d64bb64f4cd2fab13a2
- https://git.kernel.org/stable/c/79e12c891940b0c4c75881b7fd82a8cbb8ac97be
- https://git.kernel.org/stable/c/e440e077748939839d9f76e24383b76b785f80ce
Scores
| Version | Score | Vector | Scored by |
|---|---|---|---|
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | Linux |
| CVSS 3.1 | HIGH 8.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-59460
- GCVE · GCVE-0-2026-74313
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1372 — Multiples vulnérabilités dans les produits SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1335 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1333 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1286 — Multiples vulnérabilités dans le noyau Linux d'Ubuntu · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1255 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected c8a6153b6c59d95c0e091f053f6f180952ade91e < 35483c5306e09b3190ff937089d404a78012695c ; affected c8a6153b6c59d95c0e091f053f6f180952ade91e < 5c1560be8aa6849356455af67518d35c551cbd95 ; affected c8a6153b6c59d95c0e091f053f6f180952ade91e < 93ed4692f2299a40346025979f40e4a9b7b33af7 ; affected c8a6153b6c59d95c0e091f053f6f180952ade91e < d94e2947203aead590fd63f667d316d4475d65af ; affected c8a6153b6c59d95c0e091f053f6f180952ade91e < a2d0a57538fd0b3b3ab75d64bb64f4cd2fab13a2 ; affected c8a6153b6c59d95c0e091f053f6f180952ade91e < 79e12c891940b0c4c75881b7fd82a8cbb8ac97be |
| Linux · Linux | affected 5.15 ; unaffected 0 < 5.15 ; unaffected 5.15.212 ≤ 5.15.* ; unaffected 6.1.178 ≤ 6.1.* ; unaffected 6.6.145 ≤ 6.6.* ; unaffected 6.12.97 ≤ 6.12.* |
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 |