Answer in brief
CVE-2026-90032 records a Unknown severity 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.
A CVSS score is not reported in the current record. 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
Sep 16, 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.