CVE-2026-64478ALSA: usb-audio: avoid kobject path lookup in DualSense match
- 5.5MediumCVSS base score
- 0.13%Exploitation in 30 daysEPSS · top 97% of all CVEs
- NoKnown exploitednot in CISA's KEV catalog
- NonePublic exploitsnone known yet
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 kobject_get_path() walks ancestor kobjects and dereferences their names; if the USB device kobject name is no longer valid, this can fault in strlen(): RIP: 0010:strlen+0x10/0x30 Call Trace: kobject_get_path+0x34/0x150 snd_dualsense_ih_match+0x49/0xd0 [snd_usb_audio]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.
Timeline
ID reserved
By Linux
- 6 days later
· 6 days later
Published
- 3 months later
· 3 months later
Record updated
- 6 days later
· 6 days later
First scored
Medium 5.5
Changes after publication (a new score, a public exploit, EPSS crossing 1, 10 or 50 %, leaving KEV) are kept since November 2026; earlier ones are not known.
Scores
| Scored by | CVSS | Score | Vector |
|---|---|---|---|
| NVDNVD · Analyzed | 3.1 | Medium5.5 | CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H |
- EPSS (exploitation in 30 days)
- 0.13% · top 97% of all CVEs (15 Nov 2026)
- CISA SSVC
- Exploitation: none · Automatable: no · Technical impact: partial
The list uses the assigner's score when there is one, then CISA's, then NVD's: Medium 5.5.
Affected products
- affected d0b0264009596c07a77d82808b0dae72bc04ac5c – < e4c66a149c408e44e60bfec3fabf08b6b7abbc60
- affected b4b94f092f193d7a2db8e82af5e51519ae89963c – < 4566bf8ae9dbfe81bdc2ff1702d59db8a233b06e
- affected c2d5b0a6c688ffb32c35627e337fbbcc65bc275f – < 662a1d7b5affc424ea4f4bc20dd99be29e687886
- affected d04d301614630724feb4048bf17432fc7964fe74 – < a47ecd904c51ae6a42957feb3cf2f4266adee2e5
- affected a705899ec6085b12a33aa0fd94a58e82e9e90502 – < c1da6d3f45036fa63672ee04ad97cb526b40b987
- affected 79d561c4ec0497669f19a9550cfb74812f60938b – < a263eb12cbe2e208e6e637df0f9b0be9a484158e
- affected 79d561c4ec0497669f19a9550cfb74812f60938b – < 4246dd043b7a4f8e3bc1d2896e81d11220610eda
- affected 79d561c4ec0497669f19a9550cfb74812f60938b – < 7693c0cc415f3a16a7a3355f245474a5e661be4e
- affected 104ad9bae11ee450fb7d0595ff7876cfb6527838
- affected 0105cfc41abeb428d4405951a20e1e239bea5e1d
- affected 5.10.245 – < 5.10.261
- affected 5.15.194 – < 5.15.212
- affected 6.1.155 – < 6.1.178
- affected 6.6.109 – < 6.6.145
- affected 6.12.50 – < 6.12.96
- affected 5.4.300 – < 5.5
- affected 6.16.10 – < 6.17
- affected 6.17
- unaffected < 6.17
- unaffected 5.10.261 – ≤ 5.10.*
- unaffected 5.15.212 – ≤ 5.15.*
- unaffected 6.1.178 – ≤ 6.1.*
- unaffected 6.6.145 – ≤ 6.6.*
- unaffected 6.12.96 – ≤ 6.12.*
- unaffected 6.18.39 – ≤ 6.18.*
- unaffected 7.1.4 – ≤ 7.1.*
- unaffected 7.2 – ≤ *
References
References8
- https://git.kernel.org/stable/c/e4c66a149c408e44e60bfec3fabf08b6b7abbc60 (opens in a new tab)
- https://git.kernel.org/stable/c/4566bf8ae9dbfe81bdc2ff1702d59db8a233b06e (opens in a new tab)
- https://git.kernel.org/stable/c/662a1d7b5affc424ea4f4bc20dd99be29e687886 (opens in a new tab)
- https://git.kernel.org/stable/c/a47ecd904c51ae6a42957feb3cf2f4266adee2e5 (opens in a new tab)
- https://git.kernel.org/stable/c/c1da6d3f45036fa63672ee04ad97cb526b40b987 (opens in a new tab)
- https://git.kernel.org/stable/c/a263eb12cbe2e208e6e637df0f9b0be9a484158e (opens in a new tab)
- https://git.kernel.org/stable/c/4246dd043b7a4f8e3bc1d2896e81d11220610eda (opens in a new tab)
- https://git.kernel.org/stable/c/7693c0cc415f3a16a7a3355f245474a5e661be4e (opens in a new tab)
Sources
The same CVE in the primary databases and aggregators, to check against.
- CVE.org record (opens in a new tab)
- CVE List JSON (GitHub) (opens in a new tab)
- NVD (opens in a new tab)
- FIRST EPSS (opens in a new tab)
- EUVD EUVD-2026-48822 (opens in a new tab)
- OSV.dev (opens in a new tab)
- GitHub Advisories (opens in a new tab)
- CIRCL Vulnerability-Lookup (opens in a new tab)
Badge for a README or a ticket
[](https://cveledger.app/cve/CVE-2026-64478)Record last updated .