ALSA: pcm: Fix races among concurrent hw_params and hw_free calls (Linux Linux)
En bref
- Source
- NVD
- EPSS
- EPSS 0.30 % · centile 23 ()
- État
- PUBLISHED
- Publiée
- Mise à jour
- Attribuée par
- Linux
- Statut NVD
- Analyzed
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Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: pcm: Fix races among concurrent hw_params and hw_free calls Currently we have neither proper check nor protection against the concurrent calls of PCM hw_params and hw_free ioctls, which may result in a UAF. Since the existing PCM stream lock can't be used for protecting the whole ioctl operations, we need a new mutex to protect those racy calls. This patch introduced a new mutex, runtime->buffer_mutex, and applies it to both hw_params and hw_free ioctl code paths. Along with it, the both functions are slightly modified (the mmap_count check is moved into the state-check block) for code simplicity.
Faiblesses (CWE)
- CWE-416 — Utilisation après libération
Références
- https://git.kernel.org/stable/c/a42aa926843acca96c0dfbde2e835b8137f2f092
- https://git.kernel.org/stable/c/9cb6c40a6ebe4a0cfc9d6a181958211682cffea9
- https://git.kernel.org/stable/c/fbeb492694ce0441053de57699e1e2b7bc148a69
- https://git.kernel.org/stable/c/0f6947f5f5208f6ebd4d76a82a4757e2839a23f8
- https://git.kernel.org/stable/c/33061d0fba51d2bf70a2ef9645f703c33fe8e438
- https://git.kernel.org/stable/c/0090c13cbbdffd7da079ac56f80373a9a1be0bf8
- https://git.kernel.org/stable/c/1bbf82d9f961414d6c76a08f7f843ea068e0ab7b
- https://git.kernel.org/stable/c/92ee3c60ec9fe64404dc035e7c41277d74aa26cb
Scores
| Version | Score | Vecteur | Évalué par |
|---|---|---|---|
| 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 | Linux |
| 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 | CISA-ADP |
| 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 · 134c704f-9b21-4f2e-91b3-4a467353bcc0 (Secondary) |
Références européennes
- ENISA EUVD · EUVD-2022-54935
- GCVE · GCVE-0-2022-49291
Avis du CERT-FR
- CERTFR-2026-AVI-0128 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0336 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0307 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
- CERTFR-2025-AVI-0252 — Multiples vulnérabilités dans le noyau Linux de SUSE · cert.ssi.gouv.fr
Configurations affectées (CPE NVD)
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*< 4.14.279cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.15 < 4.19.243cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 4.20 < 5.4.193cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.5 < 5.10.109cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.11 < 5.15.32cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.16 < 5.16.18cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*≥ 5.17 < 5.17.1
Produits affectés
| Produit | Versions |
|---|---|
| Linux · Linux | affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < a42aa926843acca96c0dfbde2e835b8137f2f092 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 9cb6c40a6ebe4a0cfc9d6a181958211682cffea9 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < fbeb492694ce0441053de57699e1e2b7bc148a69 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0f6947f5f5208f6ebd4d76a82a4757e2839a23f8 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 33061d0fba51d2bf70a2ef9645f703c33fe8e438 ; affected 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 0090c13cbbdffd7da079ac56f80373a9a1be0bf8 |
| Linux · Linux | affected 2.6.12 ; unaffected 0 < 2.6.12 ; unaffected 4.14.279 ≤ 4.14.* ; unaffected 4.19.243 ≤ 4.19.* ; unaffected 5.4.193 ≤ 5.4.* ; unaffected 5.10.109 ≤ 5.10.* |
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 |