CVE-2026-46004ALSA: caiaq: Handle probe errors properly
- 7.8HighCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
Description
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.
Timeline
ID reserved
By Linux
- 14 days later
· 14 days later
Published
- 5 months later
· 5 months later
Record updated
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | High7.8 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (14 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: High 7.8.
Affected products
- affected 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 – < da938aa9fc7826901921dcea225948ab21a97e45
- affected 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 – < 09616e25f502080ba684fc7fcf959d1376ab756d
- affected 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 – < b956e48371f2ff72b76be9a829800ecec963bd45
- affected 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 – < f537e3ad69609f6924a4db6b4a7f6561f5288bdd
- affected 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 – < 6251e3e256337a30160ef59ab1580dde4d1acd28
- affected 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 – < e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056
- affected 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 – < 096dd8519cf2f768e9e14f224b627f7aaee1a9c5
- affected 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 – < 28abd224db4a49560b452115bca3672a20e45b2f
- affected 2.6.25
- unaffected < 2.6.25
- unaffected 5.10.258 – ≤ 5.10.*
- unaffected 5.15.209 – ≤ 5.15.*
- unaffected 6.1.175 – ≤ 6.1.*
- unaffected 6.6.140 – ≤ 6.6.*
- unaffected 6.12.86 – ≤ 6.12.*
- unaffected 6.18.27 – ≤ 6.18.*
- unaffected 7.0.4 – ≤ 7.0.*
- unaffected 7.1 – ≤ *
References
References8
- https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45 (opens in a new tab)
- https://git.kernel.org/stable/c/09616e25f502080ba684fc7fcf959d1376ab756d (opens in a new tab)
- https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45 (opens in a new tab)
- https://git.kernel.org/stable/c/f537e3ad69609f6924a4db6b4a7f6561f5288bdd (opens in a new tab)
- https://git.kernel.org/stable/c/6251e3e256337a30160ef59ab1580dde4d1acd28 (opens in a new tab)
- https://git.kernel.org/stable/c/e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056 (opens in a new tab)
- https://git.kernel.org/stable/c/096dd8519cf2f768e9e14f224b627f7aaee1a9c5 (opens in a new tab)
- https://git.kernel.org/stable/c/28abd224db4a49560b452115bca3672a20e45b2f (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-32301 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-46004)Record last updated .