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

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-64478
StatePUBLISHED
AssignerLinux
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-07-25 10:17:33 UTC
Updated2026-07-25 10:17:33 UTC
DescriptionIn 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 kobject_get_path() walks ancestor kobjects and dereferences their names; if the USB device kobject name is no longer valid, this can fault in strlen(): RIP: 0010:strlen+0x10/0x30 Call Trace: kobject_get_path+0x34/0x150 snd_dualsense_ih_match+0x49/0xd0 [snd_usb_audio]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.

Risk And Classification

EPSS: 0.001840000 probability, percentile 0.083480000 (date 2026-07-28)

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Linux Linux affected d0b0264009596c07a77d82808b0dae72bc04ac5c e4c66a149c408e44e60bfec3fabf08b6b7abbc60 git Not specified
CNA Linux Linux affected b4b94f092f193d7a2db8e82af5e51519ae89963c 4566bf8ae9dbfe81bdc2ff1702d59db8a233b06e git Not specified
CNA Linux Linux affected c2d5b0a6c688ffb32c35627e337fbbcc65bc275f 662a1d7b5affc424ea4f4bc20dd99be29e687886 git Not specified
CNA Linux Linux affected d04d301614630724feb4048bf17432fc7964fe74 a47ecd904c51ae6a42957feb3cf2f4266adee2e5 git Not specified
CNA Linux Linux affected a705899ec6085b12a33aa0fd94a58e82e9e90502 c1da6d3f45036fa63672ee04ad97cb526b40b987 git Not specified
CNA Linux Linux affected 79d561c4ec0497669f19a9550cfb74812f60938b a263eb12cbe2e208e6e637df0f9b0be9a484158e git Not specified
CNA Linux Linux affected 79d561c4ec0497669f19a9550cfb74812f60938b 4246dd043b7a4f8e3bc1d2896e81d11220610eda git Not specified
CNA Linux Linux affected 79d561c4ec0497669f19a9550cfb74812f60938b 7693c0cc415f3a16a7a3355f245474a5e661be4e git Not specified
CNA Linux Linux affected 104ad9bae11ee450fb7d0595ff7876cfb6527838 git Not specified
CNA Linux Linux affected 0105cfc41abeb428d4405951a20e1e239bea5e1d git Not specified
CNA Linux Linux affected 5.10.245 5.10.261 semver Not specified
CNA Linux Linux affected 5.15.194 5.15.212 semver Not specified
CNA Linux Linux affected 6.1.155 6.1.178 semver Not specified
CNA Linux Linux affected 6.6.109 6.6.145 semver Not specified
CNA Linux Linux affected 6.12.50 6.12.96 semver Not specified
CNA Linux Linux affected 5.4.300 5.5 semver Not specified
CNA Linux Linux affected 6.16.10 6.17 semver Not specified
CNA Linux Linux affected 6.17 Not specified
CNA Linux Linux unaffected 6.17 semver Not specified
CNA Linux Linux unaffected 5.10.261 5.10.* semver Not specified
CNA Linux Linux unaffected 5.15.212 5.15.* semver Not specified
CNA Linux Linux unaffected 6.1.178 6.1.* semver Not specified
CNA Linux Linux unaffected 6.6.145 6.6.* semver Not specified
CNA Linux Linux unaffected 6.12.96 6.12.* semver Not specified
CNA Linux Linux unaffected 6.18.39 6.18.* semver Not specified
CNA Linux Linux unaffected 7.1.4 7.1.* semver Not specified
CNA Linux Linux unaffected 7.2-rc1 * original_commit_for_fix Not specified

References

ReferenceSourceLinkTags
git.kernel.org/stable/c/4566bf8ae9dbfe81bdc2ff1702d59db8a233b06e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/662a1d7b5affc424ea4f4bc20dd99be29e687886 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/7693c0cc415f3a16a7a3355f245474a5e661be4e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a263eb12cbe2e208e6e637df0f9b0be9a484158e 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/4246dd043b7a4f8e3bc1d2896e81d11220610eda 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/a47ecd904c51ae6a42957feb3cf2f4266adee2e5 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/e4c66a149c408e44e60bfec3fabf08b6b7abbc60 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
git.kernel.org/stable/c/c1da6d3f45036fa63672ee04ad97cb526b40b987 416baaa9-dc9f-4396-8d5f-8c081fb06d67 git.kernel.org
CVE Program record CVE.ORG www.cve.org canonical
NVD vulnerability detail NVD nvd.nist.gov canonical, analysis

© CVE.report 2026

Use of this information constitutes acceptance for use in an AS IS condition. There are NO warranties, implied or otherwise, with regard to this information or its use. Any use of this information is at the user's risk. It is the responsibility of user to evaluate the accuracy, completeness or usefulness of any information, opinion, advice or other content. EACH USER WILL BE SOLELY RESPONSIBLE FOR ANY consequences of his or her direct or indirect use of this web site. ALL WARRANTIES OF ANY KIND ARE EXPRESSLY DISCLAIMED. This site will NOT BE LIABLE FOR ANY DIRECT, INDIRECT or any other kind of loss.

CVE, CWE, and OVAL are registred trademarks of The MITRE Corporation and the authoritative source of CVE content is MITRE's CVE web site. This site includes MITRE data granted under the following license.

Free CVE JSON API cve.report/api

CVE.report and Source URL Uptime Status status.cve.report