Answer in brief
CVE-2026-46004 records a Unknown severity vulnerability in ALSA: caiaq: Handle probe errors properly. 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 | >=8e3cd08ed8e590952aa9a656758cb24d4ba898f8 <da938aa9fc7826901921dcea225948ab21a97e45 || >=8e3cd08ed8e590952aa9a656758cb24d4ba898f8 <09616e25f502080ba684fc7fcf959d1376ab756d || >=8e3cd08ed8e590952aa9a656758cb24d4ba898f8 <b956e48371f2ff72b76be9a829800ecec963bd45 || >=8e3cd08ed8e590952aa9a656758cb24d4ba898f8 <f537e3ad69609f6924a4db6b4a7f6561f5288bdd || >=8e3cd08ed8e590952aa9a656758cb24d4ba898f8 <6251e3e256337a30160ef59ab1580dde4d1acd28 || >=8e3cd08ed8e590952aa9a656758cb24d4ba898f8 <e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056 || >=8e3cd08ed8e590952aa9a656758cb24d4ba898f8 <096dd8519cf2f768e9e14f224b627f7aaee1a9c5 || >=8e3cd08ed8e590952aa9a656758cb24d4ba898f8 <28abd224db4a49560b452115bca3672a20e45b2f | da938aa9fc7826901921dcea225948ab21a97e45, 09616e25f502080ba684fc7fcf959d1376ab756d, b956e48371f2ff72b76be9a829800ecec963bd45, f537e3ad69609f6924a4db6b4a7f6561f5288bdd, 6251e3e256337a30160ef59ab1580dde4d1acd28, e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056, 096dd8519cf2f768e9e14f224b627f7aaee1a9c5, 28abd224db4a49560b452115bca3672a20e45b2f |
| Linux/Linuxgeneric | 2.6.25 | Not reported |
Published upstream
May 27, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Nov 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Nov 6, 2026
In the Linux kernel, the following vulnerability has been resolved: ALSA: caiaq: Handle probe errors properly The probe procedure of setup_card() in caiaq driver doesn't treat the error cases gracefully, e.g. the error from snd_card_register() calls snd_card_free() but continues. This would lead to a UAF for the further calls like snd_usb_caiaq_control_init(), as Berk suggested in another patch in the link below. However, the problem is not only that; in general, this function drops the all error handlings (as it's a void function) although its caller can propagate an error to snd_probe(), which eventually calls snd_card_free() as a proper error path. That said, we should treat each error case in setup_card(), and just return the error code promptly, which is then handled later as a fatal error in snd_probe(). This patch achieves it by changing the setup_card() to return an error code. Also, the superfluous snd_card_free() call is removed, too. Note that card->private_free can be set still safely at returning an error. All called functions in card_free() have checks of the unassigned resources or NULL checks.
Quoted source text, attributed separately from HOL analysis.