CVE-2026-46004ALSA: caiaq: Handle probe errors properly
Updated under an hour ago ()
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No exploitation reported and no EPSS estimate yet.
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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.
- CVSS
- 7.8 HIGH (v3.1, NVD)CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- Weakness (CWE)
- Not given
- Known exploited
- Not in CISA's KEV catalog
- EPSS (exploitation in the next 30 days)
- Not loaded for this CVE
- Assigned by
- Linux
- NVD analysis
- Analyzed
- Record last updated
- Jun 14, 2026
- First seen by InfoSec Signals
- Oct 9, 2026
Affected products
Linux Linux linux:linux (from the name) | from 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 before da938aa9fc7826901921dcea225948ab21a97e45; from 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 before 09616e25f502080ba684fc7fcf959d1376ab756d; from 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 before b956e48371f2ff72b76be9a829800ecec963bd45; from 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 before f537e3ad69609f6924a4db6b4a7f6561f5288bdd; from 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 before 6251e3e256337a30160ef59ab1580dde4d1acd28; from 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 before e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056; from 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 before 096dd8519cf2f768e9e14f224b627f7aaee1a9c5; from 8e3cd08ed8e590952aa9a656758cb24d4ba898f8 before 28abd224db4a49560b452115bca3672a20e45b2f | CNA record |
linux linux_kernel linux:linux_kernel | from 2.6.25 before 5.10.258; from 5.11 before 5.15.209; from 5.16 before 6.1.175; from 6.2 before 6.6.140; from 6.7 before 6.12.86; from 6.13 before 6.18.27; from 6.19 before 7.0.4 | NVD |
References
- https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45patch
- https://git.kernel.org/stable/c/09616e25f502080ba684fc7fcf959d1376ab756dpatch
- https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45patch
- https://git.kernel.org/stable/c/f537e3ad69609f6924a4db6b4a7f6561f5288bddpatch
- https://git.kernel.org/stable/c/6251e3e256337a30160ef59ab1580dde4d1acd28patch
- https://git.kernel.org/stable/c/e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056patch
- https://git.kernel.org/stable/c/096dd8519cf2f768e9e14f224b627f7aaee1a9c5patch
- https://git.kernel.org/stable/c/28abd224db4a49560b452115bca3672a20e45b2fpatch
The CVE record on cve.org NVD's entry
The CVE record is authoritative. Products marked “from the name” were identified from the CNA's free-text names, not a CPE, and are matched less certainly. This product uses the NVD API but is not endorsed or certified by the NVD.