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.
References
Configurations
Configuration 1 (hide)
|
History
16 Jun 2026, 15:26
| Type | Values Removed | Values Added |
|---|---|---|
| CVSS |
v2 : v3 : |
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 - Patch | |
| References | () https://git.kernel.org/stable/c/096dd8519cf2f768e9e14f224b627f7aaee1a9c5 - Patch | |
| References | () https://git.kernel.org/stable/c/28abd224db4a49560b452115bca3672a20e45b2f - Patch | |
| References | () https://git.kernel.org/stable/c/6251e3e256337a30160ef59ab1580dde4d1acd28 - Patch | |
| References | () https://git.kernel.org/stable/c/b956e48371f2ff72b76be9a829800ecec963bd45 - Patch | |
| References | () https://git.kernel.org/stable/c/da938aa9fc7826901921dcea225948ab21a97e45 - Patch | |
| References | () https://git.kernel.org/stable/c/e59ecd4ee3a450db6cb4e4ecaa3efdd593f80056 - Patch | |
| References | () https://git.kernel.org/stable/c/f537e3ad69609f6924a4db6b4a7f6561f5288bdd - Patch |
01 Jun 2026, 17:17
| Type | Values Removed | Values Added |
|---|---|---|
| References |
|
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
Use After Free
