Answer in brief
CVE-2026-90032 records a High severity (CVSS 7.8) vulnerability in media: usbtv: keep device alive while ALSA card exists. The current sources do not mark it as known exploited. The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.8. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps Linux/Linux (generic), Linux/Linux (generic). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| Linux/Linuxgeneric | >=63ddf68de52efaac40a9287e44266ac30e71dd36 <97b5e8b22b98e287481a97a9a4cfebbb348738a5 || >=63ddf68de52efaac40a9287e44266ac30e71dd36 <503be26ff888cb3576e55d251895d290e8146f27 || >=63ddf68de52efaac40a9287e44266ac30e71dd36 <be0f7745f883386e5263b4e475686a81dfa87175 || >=63ddf68de52efaac40a9287e44266ac30e71dd36 <67374e3a00814dcdd46e9feca61f69f7f2d81957 || >=63ddf68de52efaac40a9287e44266ac30e71dd36 <239d1683e08b2aee2a15ef35706e1ea9a76681d8 || >=63ddf68de52efaac40a9287e44266ac30e71dd36 <7690a86b193271322cd31ab77349a87aa10858e4 || >=63ddf68de52efaac40a9287e44266ac30e71dd36 <1618257cb0aba4ce342ae8c0228368c24161f5fb || >=63ddf68de52efaac40a9287e44266ac30e71dd36 <fc530fe168bb2b745a93f553ad21fc25fd9cba3d | 97b5e8b22b98e287481a97a9a4cfebbb348738a5, 503be26ff888cb3576e55d251895d290e8146f27, be0f7745f883386e5263b4e475686a81dfa87175, 67374e3a00814dcdd46e9feca61f69f7f2d81957, 239d1683e08b2aee2a15ef35706e1ea9a76681d8, 7690a86b193271322cd31ab77349a87aa10858e4, 1618257cb0aba4ce342ae8c0228368c24161f5fb, fc530fe168bb2b745a93f553ad21fc25fd9cba3d |
| Linux/Linuxgeneric | 3.18 | Not reported |
Published upstream
Sep 16, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Oct 19, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Sep 16, 2026
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.
Quoted source text, attributed separately from HOL analysis.