CVE-2025-40085
Unknown
Description
In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card In try_to_register_card(), the return value of usb_ifnum_to_if() is passed directly to usb_interface_claimed() without a NULL check, which will lead to a NULL pointer dereference when creating an invalid USB audio device. Fix this by adding a check to ensure the interface pointer is valid before passing it to usb_interface_claimed().
SeverityUnknown
CVSS—
Exploit probability—
Product
Linux
PublishedOct 29, 2025
First seenOct 29, 2025
How to fix
Update
- Linux Linux736159f7b296d7a95f7208eb4799639b1f8b16a0, 8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb, 576312eb436326b44b7010f4d9ae2b698df075ea, bba7208765d26e5e36b87f21dacc2780b064f41f, 8503ac1a62075a085402e42a386b5c627c821a51, 28412b489b088fb88dff488305fd4e56bd47f6e4, 5.15.196, 5.20, 6.1 or later
Affected products
| Product | Affected versions | Fixed in |
|---|---|---|
| Linux Linux | 28787ff9fbeaf57684eb64cc33e2ec8ceedf21b5 ≤ v < 736159f7b296d7a95f7208eb4799639b1f8b16a0, 39efc9c8a973ddff5918191525d1679d0fb368ea ≤ v < 8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb, 39efc9c8a973ddff5918191525d1679d0fb368ea ≤ v < 576312eb436326b44b7010f4d9ae2b698df075ea, 39efc9c8a973ddff5918191525d1679d0fb368ea ≤ v < bba7208765d26e5e36b87f21dacc2780b064f41f, 39efc9c8a973ddff5918191525d1679d0fb368ea ≤ v < 8503ac1a62075a085402e42a386b5c627c821a51, 39efc9c8a973ddff5918191525d1679d0fb368ea ≤ v < 28412b489b088fb88dff488305fd4e56bd47f6e4, 9d4f4dc3cd38e412c29a7626489fe48b79ebbf6c, 52076a41c128146c9df4a157e972cb17019313b1, 5.15.75 ≤ v < 5.15.196, 5.19.17 ≤ v < 5.20, 6.0.3 ≤ v < 6.1, 6.1 | 736159f7b296d7a95f7208eb4799639b1f8b16a0, 8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb, 576312eb436326b44b7010f4d9ae2b698df075ea, bba7208765d26e5e36b87f21dacc2780b064f41f, 8503ac1a62075a085402e42a386b5c627c821a51, 28412b489b088fb88dff488305fd4e56bd47f6e4, 5.15.196, 5.20, 6.1 |
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