CVE-2026-64478None▾ SunlitIn 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 phys…
▾ Sunlit zone — Low / medium · no exploitation signal
impact 2.8 · likelihood 0 · exploitation 0
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Stakeholder-Specific Vulnerability Categorization from CISA's ADP record at CVE.org: whether exploitation is observed, whether an attack can be automated, and how much of the system is at stake.
Exploit-prediction probability, daily snapshots since Nov 6.
Disclosure to exploitation, from the record and what we observed since indexing it.
Disclosed via CVEORG
Last analysed / modified upstream
0.2%
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 kobject_get_path() walks ancestor kobjects and dereferences their names; if the USB device kobject name is no longer valid, this can fault in strlen():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.
Linux >= d0b0264009596c07a77d82808b0dae72bc04ac5c < e4c66a149c408e44e60bfec3fabf08b6b7abbc60Linux >= b4b94f092f193d7a2db8e82af5e51519ae89963c < 4566bf8ae9dbfe81bdc2ff1702d59db8a233b06eLinux >= c2d5b0a6c688ffb32c35627e337fbbcc65bc275f < 662a1d7b5affc424ea4f4bc20dd99be29e687886Linux >= d04d301614630724feb4048bf17432fc7964fe74 < a47ecd904c51ae6a42957feb3cf2f4266adee2e5Linux >= a705899ec6085b12a33aa0fd94a58e82e9e90502 < c1da6d3f45036fa63672ee04ad97cb526b40b987Linux >= 79d561c4ec0497669f19a9550cfb74812f60938b < a263eb12cbe2e208e6e637df0f9b0be9a484158eLinux >= 79d561c4ec0497669f19a9550cfb74812f60938b < 4246dd043b7a4f8e3bc1d2896e81d11220610edaLinux >= 79d561c4ec0497669f19a9550cfb74812f60938b < 7693c0cc415f3a16a7a3355f245474a5e661be4eLinux 104ad9bae11ee450fb7d0595ff7876cfb6527838Linux 0105cfc41abeb428d4405951a20e1e239bea5e1dLinux >= 5.10.245 < 5.10.261Linux >= 5.15.194 < 5.15.212Linux >= 6.1.155 < 6.1.178Linux >= 6.6.109 < 6.6.145Linux >= 6.12.50 < 6.12.96Linux >= 5.4.300 < 5.5Linux >= 6.16.10 < 6.17Linux 6.17Refer to the linked advisories for vendor-supplied fixes and affected version ranges.
Connected by shared product, vendor, weakness, or advisory.
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