CVE-2025-40085
ALSA: usb-audio: Fix NULL pointer deference in try_to_register_card
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 29, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
28787ff9fbeaf57684eb64cc33e2ec8ceedf21b5 < 736159f7b296d7a95f7208eb4799639b1f8b16a0 39efc9c8a973ddff5918191525d1679d0fb368ea < 8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb 39efc9c8a973ddff5918191525d1679d0fb368ea < 576312eb436326b44b7010f4d9ae2b698df075ea 39efc9c8a973ddff5918191525d1679d0fb368ea < bba7208765d26e5e36b87f21dacc2780b064f41f 39efc9c8a973ddff5918191525d1679d0fb368ea < 8503ac1a62075a085402e42a386b5c627c821a51 39efc9c8a973ddff5918191525d1679d0fb368ea < 28412b489b088fb88dff488305fd4e56bd47f6e4 9d4f4dc3cd38e412c29a7626489fe48b79ebbf6c 52076a41c128146c9df4a157e972cb17019313b1
Linux / Linux
6.1
References
git.kernel.org: https://git.kernel.org/stable/c/736159f7b296d7a95f7208eb4799639b1f8b16a0 git.kernel.org: https://git.kernel.org/stable/c/8d19a7ab28c7b9c207db5c5282afa8cc8595bcdb git.kernel.org: https://git.kernel.org/stable/c/576312eb436326b44b7010f4d9ae2b698df075ea git.kernel.org: https://git.kernel.org/stable/c/bba7208765d26e5e36b87f21dacc2780b064f41f git.kernel.org: https://git.kernel.org/stable/c/8503ac1a62075a085402e42a386b5c627c821a51 git.kernel.org: https://git.kernel.org/stable/c/28412b489b088fb88dff488305fd4e56bd47f6e4