CVE-2026-90032

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Source
https://cve.org/CVERecord?id=CVE-2026-90032
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90032.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-90032
Downstream
Published
2026-09-16T10:33:33Z
Modified
2026-09-18T03:48:35Z
Severity
  • 7.8 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
media: usbtv: keep device alive while ALSA card exists
Details

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.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/90xxx/CVE-2026-90032.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
63ddf68de52efaac40a9287e44266ac30e71dd36
Fixed
97b5e8b22b98e287481a97a9a4cfebbb348738a5
Fixed
503be26ff888cb3576e55d251895d290e8146f27
Fixed
be0f7745f883386e5263b4e475686a81dfa87175
Fixed
67374e3a00814dcdd46e9feca61f69f7f2d81957
Fixed
239d1683e08b2aee2a15ef35706e1ea9a76681d8
Fixed
7690a86b193271322cd31ab77349a87aa10858e4
Fixed
1618257cb0aba4ce342ae8c0228368c24161f5fb
Fixed
fc530fe168bb2b745a93f553ad21fc25fd9cba3d

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90032.json"

Linux / Kernel

Package

Name
Kernel

Affected ranges

Type
ECOSYSTEM
Events
Introduced
3.18.0
Fixed
5.10.270
Type
ECOSYSTEM
Events
Introduced
5.11.0
Fixed
5.15.221
Type
ECOSYSTEM
Events
Introduced
5.16.0
Fixed
6.1.188
Type
ECOSYSTEM
Events
Introduced
6.2.0
Fixed
6.6.157
Type
ECOSYSTEM
Events
Introduced
6.7.0
Fixed
6.12.110
Type
ECOSYSTEM
Events
Introduced
6.13.0
Fixed
6.18.51
Type
ECOSYSTEM
Events
Introduced
6.19.0
Fixed
7.2.5

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-90032.json"