Skip to content
CVE PROGRAM SOURCE RECORDUnscored

CVE-2026-64478

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

Read JSON ↗CVE.org ↗
Status
Published
Published
Updated
Assigning organization
Linux

Description

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 kobject_get_path() walks ancestor kobjects and dereferences their names; if the USB device kobject name is no longer valid, this can fault in strlen(): RIP: 0010:strlen+0x10/0x30 Call Trace: kobject_get_path+0x34/0x150 snd_dualsense_ih_match+0x49/0xd0 [snd_usb_audio]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.

Affected products

Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.

Linux Linux

Default version status: unaffected

  • d0b0264009596c07a77d82808b0dae72bc04ac5c to < e4c66a149c408e44e60bfec3fabf08b6b7abbc60affected
  • b4b94f092f193d7a2db8e82af5e51519ae89963c to < 4566bf8ae9dbfe81bdc2ff1702d59db8a233b06eaffected
  • c2d5b0a6c688ffb32c35627e337fbbcc65bc275f to < 662a1d7b5affc424ea4f4bc20dd99be29e687886affected
  • d04d301614630724feb4048bf17432fc7964fe74 to < a47ecd904c51ae6a42957feb3cf2f4266adee2e5affected
  • a705899ec6085b12a33aa0fd94a58e82e9e90502 to < c1da6d3f45036fa63672ee04ad97cb526b40b987affected
  • 79d561c4ec0497669f19a9550cfb74812f60938b to < a263eb12cbe2e208e6e637df0f9b0be9a484158eaffected
  • 79d561c4ec0497669f19a9550cfb74812f60938b to < 4246dd043b7a4f8e3bc1d2896e81d11220610edaaffected
  • 79d561c4ec0497669f19a9550cfb74812f60938b to < 7693c0cc415f3a16a7a3355f245474a5e661be4eaffected
  • 104ad9bae11ee450fb7d0595ff7876cfb6527838affected
  • 0105cfc41abeb428d4405951a20e1e239bea5e1daffected
  • 5.10.245 to < 5.10.261affected
  • 5.15.194 to < 5.15.212affected
  • 6.1.155 to < 6.1.178affected
  • 6.6.109 to < 6.6.145affected
  • 6.12.50 to < 6.12.96affected
  • 5.4.300 to < 5.5affected
  • 6.16.10 to < 6.17affected

Linux Linux

Default version status: affected

  • 6.17affected
  • 0 to < 6.17unaffected
  • 5.10.261 to ≤ 5.10.*unaffected
  • 5.15.212 to ≤ 5.15.*unaffected
  • 6.1.178 to ≤ 6.1.*unaffected
  • 6.6.145 to ≤ 6.6.*unaffected
  • 6.12.96 to ≤ 6.12.*unaffected
  • 6.18.39 to ≤ 6.18.*unaffected
  • 7.1.4 to ≤ 7.1.*unaffected
  • 7.2 to ≤ *unaffected

References