media: usbtv: keep device alive while ALSA card exists (Linux Linux)
At a glance
- Source
- NVD
- EPSS
- EPSS 0.16 % · percentile 5 ()
- State
- PUBLISHED
- Published
- Updated
- Assigner
- Linux
- NVD status
- Received
Description
In the Linux kernel, the following vulnerability has been resolved: media: usbtv: keep device alive while ALSA card exists The ALSA PCM callbacks store the driver state in pcm->private_data. An open PCM file can outlive USB disconnect because usbtv_audio_free() uses snd_card_free_when_closed(). The disconnect path can then drop the V4L2 device reference and free struct usbtv before ALSA releases the substream, so a later close dereferences freed memory in snd_usbtv_pcm_close(). Take a V4L2 device reference for the ALSA card and drop it from the card private_free callback. This keeps struct usbtv valid until ALSA has closed the remaining files and freed the card.
References
- https://git.kernel.org/stable/c/97b5e8b22b98e287481a97a9a4cfebbb348738a5
- https://git.kernel.org/stable/c/503be26ff888cb3576e55d251895d290e8146f27
- https://git.kernel.org/stable/c/be0f7745f883386e5263b4e475686a81dfa87175
- https://git.kernel.org/stable/c/67374e3a00814dcdd46e9feca61f69f7f2d81957
- https://git.kernel.org/stable/c/239d1683e08b2aee2a15ef35706e1ea9a76681d8
- https://git.kernel.org/stable/c/7690a86b193271322cd31ab77349a87aa10858e4
- https://git.kernel.org/stable/c/1618257cb0aba4ce342ae8c0228368c24161f5fb
- https://git.kernel.org/stable/c/fc530fe168bb2b745a93f553ad21fc25fd9cba3d
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 | 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 | NVD · 416baaa9-dc9f-4396-8d5f-8c081fb06d67 (Secondary) |
European references
- ENISA EUVD · EUVD-2026-80640
- GCVE · GCVE-0-2026-90032
CERT-FR advisories
- CERTFR-2026-AVI-1385 — Multiples vulnérabilités dans les produits VMware · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1375 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1289 — Multiples vulnérabilités dans le noyau Linux de Debian LTS · cert.ssi.gouv.fr
- CERTFR-2026-AVI-1253 — Multiples vulnérabilités dans le noyau Linux de Debian · cert.ssi.gouv.fr
Affected products
| Product | Versions |
|---|---|
| Linux · Linux | affected 63ddf68de52efaac40a9287e44266ac30e71dd36 < 97b5e8b22b98e287481a97a9a4cfebbb348738a5 ; affected 63ddf68de52efaac40a9287e44266ac30e71dd36 < 503be26ff888cb3576e55d251895d290e8146f27 ; affected 63ddf68de52efaac40a9287e44266ac30e71dd36 < be0f7745f883386e5263b4e475686a81dfa87175 ; affected 63ddf68de52efaac40a9287e44266ac30e71dd36 < 67374e3a00814dcdd46e9feca61f69f7f2d81957 ; affected 63ddf68de52efaac40a9287e44266ac30e71dd36 < 239d1683e08b2aee2a15ef35706e1ea9a76681d8 ; affected 63ddf68de52efaac40a9287e44266ac30e71dd36 < 7690a86b193271322cd31ab77349a87aa10858e4 |
| Linux · Linux | affected 3.18 ; unaffected 0 < 3.18 ; unaffected 5.10.270 ≤ 5.10.* ; unaffected 5.15.221 ≤ 5.15.* ; unaffected 6.1.188 ≤ 6.1.* ; unaffected 6.6.157 ≤ 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 |