CVE-2026-46004

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.
Configurations

Configuration 1 (hide)

OR cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*

History

16 Jun 2026, 15:26

Type Values Removed Values Added
CVSS v2 : unknown
v3 : unknown
v2 : unknown
v3 : 7.8
CPE cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*
CWE CWE-416
First Time Linux linux Kernel
Linux
References () https://git.kernel.org/stable/c/09616e25f502080ba684fc7fcf959d1376ab756d - () https://git.kernel.org/stable/c/09616e25f502080ba684fc7fcf959d1376ab756d - Patch
References () https://git.kernel.org/stable/c/096dd8519cf2f768e9e14f224b627f7aaee1a9c5 - () https://git.kernel.org/stable/c/096dd8519cf2f768e9e14f224b627f7aaee1a9c5 - Patch
References () https://git.kernel.org/stable/c/28abd224db4a49560b452115bca3672a20e45b2f - () https://git.kernel.org/stable/c/28abd224db4a49560b452115bca3672a20e45b2f - Patch
References () https://git.kernel.org/stable/c/6251e3e256337a30160ef59ab1580dde4d1acd28 - () https://git.kernel.org/stable/c/6251e3e256337a30160ef59ab1580dde4d1acd28 - Patch
References () https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45 - () https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45 - Patch
References () https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45 - () https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45 - Patch
References () https://git.kernel.org/stable/c/e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056 - () https://git.kernel.org/stable/c/e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056 - Patch
References () https://git.kernel.org/stable/c/f537e3ad69609f6924a4db6b4a7f6561f5288bdd - () https://git.kernel.org/stable/c/f537e3ad69609f6924a4db6b4a7f6561f5288bdd - Patch

01 Jun 2026, 17:17

Type Values Removed Values Added
References
  • () https://git.kernel.org/stable/c/09616e25f502080ba684fc7fcf959d1376ab756d -
  • () https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45 -
  • () https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45 -

27 May 2026, 14:17

Type Values Removed Values Added
New CVE

Information

Published : 2026-05-27 14:17

Updated : 2026-06-17 10:52


NVD link : CVE-2026-46004

Mitre link : CVE-2026-46004

CVE.ORG link : CVE-2026-46004


JSON object : View

Products Affected

linux

  • linux_kernel
CWE
CWE-416

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