7.8

CVE-2026-90032

media: usbtv: keep device alive while ALSA card exists

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.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerLinux
≫
Produkt Linux
Default Statusunaffected
Version 63ddf68de52efaac40a9287e44266ac30e71dd36
Version < 97b5e8b22b98e287481a97a9a4cfebbb348738a5
Status affected
Version 63ddf68de52efaac40a9287e44266ac30e71dd36
Version < 503be26ff888cb3576e55d251895d290e8146f27
Status affected
Version 63ddf68de52efaac40a9287e44266ac30e71dd36
Version < be0f7745f883386e5263b4e475686a81dfa87175
Status affected
Version 63ddf68de52efaac40a9287e44266ac30e71dd36
Version < 67374e3a00814dcdd46e9feca61f69f7f2d81957
Status affected
Version 63ddf68de52efaac40a9287e44266ac30e71dd36
Version < 239d1683e08b2aee2a15ef35706e1ea9a76681d8
Status affected
Version 63ddf68de52efaac40a9287e44266ac30e71dd36
Version < 7690a86b193271322cd31ab77349a87aa10858e4
Status affected
Version 63ddf68de52efaac40a9287e44266ac30e71dd36
Version < 1618257cb0aba4ce342ae8c0228368c24161f5fb
Status affected
Version 63ddf68de52efaac40a9287e44266ac30e71dd36
Version < fc530fe168bb2b745a93f553ad21fc25fd9cba3d
Status affected
HerstellerLinux
≫
Produkt Linux
Default Statusaffected
Version 3.18
Status affected
Version 0
Version < 3.18
Status unaffected
Version <= 5.10.*
Version 5.10.270
Status unaffected
Version <= 5.15.*
Version 5.15.221
Status unaffected
Version <= 6.1.*
Version 6.1.188
Status unaffected
Version <= 6.6.*
Version 6.6.157
Status unaffected
Version <= 6.12.*
Version 6.12.110
Status unaffected
Version <= 6.18.*
Version 6.18.51
Status unaffected
Version <= 7.2.*
Version 7.2.5
Status unaffected
Version <= *
Version 7.3-rc1
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.15% 0.048
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
416baaa9-dc9f-4396-8d5f-8c081fb06d67 7.8 1.8 5.9
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Es wurden noch keine Informationen zu CWE veröffentlicht.
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