Not yet scoredPublished Jul 25, 2026

CVE-2026-64478ALSA: usb-audio: avoid kobject path lookup in DualSense match

Updated under an hour ago (Oct 27, 2026, 5:23 AM ET)

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Exploited in the last 30 days

In the Linux kernel, the following vulnerability has been resolved: ALSA: usb-audio: avoid kobject path lookup in DualSense match The DualSense jack-detection input handler verifies that a matching input device belongs to the same physical controller by building kobject path strings for both the input device and the USB audio device, then comparing the path prefix. This was observed when a weak physical connection caused the controller to rapidly disconnect and reconnect. During that repeated hotplug, snd_dualsense_ih_match() can run while the controller's USB device is being disconnected. kobject_get_path() walks ancestor kobjects and dereferences their names; if the USB device kobject name is no longer valid, this can fault in strlen(): RIP: 0010:strlen+0x10/0x30 Call Trace: kobject_get_path+0x34/0x150 snd_dualsense_ih_match+0x49/0xd0 [snd_usb_audio] input_register_device+0x566/0x6a0 ps_probe+0xb89/0x1590 [hid_playstation] The same ownership check can be done without building kobject path strings. The input device is parented below the HID device, USB interface and USB device, so walking the input device parent chain and comparing against the mixer USB device preserves the check without dereferencing kobject names during disconnect.

CVSS: Not yet scored
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: Received
Record last updated: Aug 17, 2026
First seen by InfoSec Signals: Oct 9, 2026

Affected products

Affected products

Linux Linux linux:linux (from the name)	from d0b0264009596c07a77d82808b0dae72bc04ac5c before e4c66a149c408e44e60bfec3fabf08b6b7abbc60; from b4b94f092f193d7a2db8e82af5e51519ae89963c before 4566bf8ae9dbfe81bdc2ff1702d59db8a233b06e; from c2d5b0a6c688ffb32c35627e337fbbcc65bc275f before 662a1d7b5affc424ea4f4bc20dd99be29e687886; from d04d301614630724feb4048bf17432fc7964fe74 before a47ecd904c51ae6a42957feb3cf2f4266adee2e5; from a705899ec6085b12a33aa0fd94a58e82e9e90502 before c1da6d3f45036fa63672ee04ad97cb526b40b987; from 79d561c4ec0497669f19a9550cfb74812f60938b before a263eb12cbe2e208e6e637df0f9b0be9a484158e; from 79d561c4ec0497669f19a9550cfb74812f60938b before 4246dd043b7a4f8e3bc1d2896e81d11220610eda; from 79d561c4ec0497669f19a9550cfb74812f60938b before 7693c0cc415f3a16a7a3355f245474a5e661be4e; and 9 more ranges	CNA record

References

References

https://git.kernel.org/stable/c/e4c66a149c408e44e60bfec3fabf08b6b7abbc60
https://git.kernel.org/stable/c/4566bf8ae9dbfe81bdc2ff1702d59db8a233b06e
https://git.kernel.org/stable/c/662a1d7b5affc424ea4f4bc20dd99be29e687886
https://git.kernel.org/stable/c/a47ecd904c51ae6a42957feb3cf2f4266adee2e5
https://git.kernel.org/stable/c/c1da6d3f45036fa63672ee04ad97cb526b40b987
https://git.kernel.org/stable/c/a263eb12cbe2e208e6e637df0f9b0be9a484158e
https://git.kernel.org/stable/c/4246dd043b7a4f8e3bc1d2896e81d11220610eda
https://git.kernel.org/stable/c/7693c0cc415f3a16a7a3355f245474a5e661be4e

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.