ALSA: usb-audio: avoid kobject path lookup in DualSense match
Key facts
- Attack vector
- —
- Privileges required
- —
- User interaction
- —
- Attack complexity
- —
- Impact type
- —
- Confidentiality · integrity · availability
- —
- Fix status
- Partial Red Hat: 3 without a fix
No CVSS vector from any source. Fix status from CNA and Red Hat.
Summary
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 kobject_get_path() walks ancestor kobjects and dereferences their names; if the USB device kobject name is no longer valid, this can fault in strlen(): RIP: 0010:strlen+0x10/0x30 Call Trace: kobject_get_path+0x34/0x150 snd_dualsense_ih_match+0x49/0xd0 [snd_usb_audio]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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Linux | Linux | 5.10.245 to before 5.10.261; 5.15.194 to before 5.15.212; 6.1.155 to before 6.1.178; 6.6.109 to before 6.6.145; 6.12.50 to before 6.12.96; 5.4.300 to before 5.5; 6.16.10 to before 6.17 | 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.96, 5.5, 6.17 | Patch available | CNA |
| Linux | Linux | 6.17 and later | 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.96, 6.18.39, 7.1.4, 7.2 | Patch available | CNA |
- Linux VendorLinux Affected 5.10.245 to before 5.10.261; 5.15.194 to before 5.15.212; 6.1.155 to before 6.1.178; 6.6.109 to before 6.6.145; 6.12.50 to before 6.12.96; 5.4.300 to before 5.5; 6.16.10 to before 6.17 Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.96, 5.5, 6.17 Patch available CNA
- Linux VendorLinux Affected 6.17 and later Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.96, 6.18.39, 7.1.4, 7.2 Patch available CNA
Remediation
- Fix · CNA Linux (Linux) Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.96, 5.5, 6.17
- Fix · CNA Linux (Linux) Fixed in 5.10.261, 5.15.212, 6.1.178, 6.6.145, 6.12.96, 6.18.39, 7.1.4, 7.2
Vendor assessments
Red Hat
Red Hat rating: Moderate. Red Hat's page for this CVE →
| Product | Status | Plan or fix |
|---|---|---|
| Red Hat Enterprise Linux 10 | Affected | No fix yet: Fix deferred |
| Red Hat Enterprise Linux 6 | Affected | No fix planned: Out of support scope |
| Red Hat Enterprise Linux 9 | Affected | No fix yet: Fix deferred |
Not affected: 3 products
- Red Hat Enterprise Linux 7
- Red Hat Enterprise Linux 8
- Red Hat Enterprise Linux 9
Timeline
- 2026-10-02 Threatist record created from CVE-2026-64478
- 2026-10-03 Alias added: GHSA-wv3c-4j75-q9c9
- 2026-10-16 CVSS score changed · Red Hat
- 2026-10-29 Affected versions changed · Red Hat
- 2026-11-06 CISA SSVC decision points changed
References
Other 8
- 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
More Linux vulnerabilities
- TI-2025-26358 tls: fix handling of zero-length records on the rx_list KEVCVSS 3.1CRITICAL 9.8
- TI-2026-38352 netfilter: bridge: make ebt_snat ARP rewrite writable KEVCVSS 3.1HIGH 8.8
- TI-2021-02452 Incorrect authorization in Ubuntu linux kernel KEVCVSS 3.1HIGH 8.8
- TI-2013-05264 The (1) get_user and (2) put_user API functions in the Linux kernel before 3.5.5 on the… KEVCVSS 3.1HIGH 8.8
- TI-2022-00125 Integer overflow in kernel KEVCVSS 3.1HIGH 8.4
- TI-2013-01864 The perf_swevent_init function in kernel/events/core.c in the Linux kernel before 3.8.9… KEVCVSS 3.1HIGH 8.4
Sources
- CVE-2026-64478 · CVE Program
- CVE-2026-64478 · NVD
- FIRST EPSS
- GHSA-wv3c-4j75-q9c9 · GitHub Advisory Database · CC BY 4.0
- CVE-2026-64478 · Red Hat security data · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences