CVE-2026-64478 (GCVE-0-2026-64478)
Vulnerability from cvelistv5 – Published: 2026-07-25 08:51 – Updated: 2026-07-25 08:51
VLAI
EPSS
VEX
Title
ALSA: usb-audio: avoid kobject path lookup in DualSense match
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dereferences their names; if the USB device kobject name is no longer
valid, this can fault in strlen():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.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | |
|---|---|---|---|
| Linux | Linux |
Affected:
d0b0264009596c07a77d82808b0dae72bc04ac5c , < e4c66a149c408e44e60bfec3fabf08b6b7abbc60
(git)
Affected: b4b94f092f193d7a2db8e82af5e51519ae89963c , < 4566bf8ae9dbfe81bdc2ff1702d59db8a233b06e (git) Affected: c2d5b0a6c688ffb32c35627e337fbbcc65bc275f , < 662a1d7b5affc424ea4f4bc20dd99be29e687886 (git) Affected: d04d301614630724feb4048bf17432fc7964fe74 , < a47ecd904c51ae6a42957feb3cf2f4266adee2e5 (git) Affected: a705899ec6085b12a33aa0fd94a58e82e9e90502 , < c1da6d3f45036fa63672ee04ad97cb526b40b987 (git) Affected: 79d561c4ec0497669f19a9550cfb74812f60938b , < a263eb12cbe2e208e6e637df0f9b0be9a484158e (git) Affected: 79d561c4ec0497669f19a9550cfb74812f60938b , < 4246dd043b7a4f8e3bc1d2896e81d11220610eda (git) Affected: 79d561c4ec0497669f19a9550cfb74812f60938b , < 7693c0cc415f3a16a7a3355f245474a5e661be4e (git) Affected: 104ad9bae11ee450fb7d0595ff7876cfb6527838 (git) Affected: 0105cfc41abeb428d4405951a20e1e239bea5e1d (git) Affected: 5.10.245 , < 5.10.261 (semver) Affected: 5.15.194 , < 5.15.212 (semver) Affected: 6.1.155 , < 6.1.178 (semver) Affected: 6.6.109 , < 6.6.145 (semver) Affected: 6.12.50 , < 6.12.96 (semver) Affected: 5.4.300 , < 5.5 (semver) Affected: 6.16.10 , < 6.17 (semver) |
|
| Linux | Linux |
Affected:
6.17
Unaffected: 0 , < 6.17 (semver) Unaffected: 5.10.261 , ≤ 5.10.* (semver) Unaffected: 5.15.212 , ≤ 5.15.* (semver) Unaffected: 6.1.178 , ≤ 6.1.* (semver) Unaffected: 6.6.145 , ≤ 6.6.* (semver) Unaffected: 6.12.96 , ≤ 6.12.* (semver) Unaffected: 6.18.39 , ≤ 6.18.* (semver) Unaffected: 7.1.4 , ≤ 7.1.* (semver) Unaffected: 7.2-rc1 , ≤ * (original_commit_for_fix) |
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"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nALSA: usb-audio: avoid kobject path lookup in DualSense match\n\nThe DualSense jack-detection input handler verifies that a matching input\ndevice belongs to the same physical controller by building kobject path\nstrings for both the input device and the USB audio device, then comparing\nthe path prefix.\n\nThis was observed when a weak physical connection caused the controller\nto rapidly disconnect and reconnect. During that repeated hotplug,\nsnd_dualsense_ih_match() can run while the controller\u0027s USB device is\nbeing disconnected. kobject_get_path() walks ancestor kobjects and\ndereferences their names; if the USB device kobject name is no longer\nvalid, this can fault in strlen():\n\n RIP: 0010:strlen+0x10/0x30\n Call Trace:\n kobject_get_path+0x34/0x150\n snd_dualsense_ih_match+0x49/0xd0 [snd_usb_audio]\n input_register_device+0x566/0x6a0\n ps_probe+0xb89/0x1590 [hid_playstation]\n\nThe same ownership check can be done without building kobject path\nstrings. The input device is parented below the HID device, USB interface\nand USB device, so walking the input device parent chain and comparing\nagainst the mixer USB device preserves the check without dereferencing\nkobject names during disconnect."
}
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"providerMetadata": {
"dateUpdated": "2026-07-25T08:51:40.299Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
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"url": "https://git.kernel.org/stable/c/e4c66a149c408e44e60bfec3fabf08b6b7abbc60"
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},
{
"url": "https://git.kernel.org/stable/c/7693c0cc415f3a16a7a3355f245474a5e661be4e"
}
],
"title": "ALSA: usb-audio: avoid kobject path lookup in DualSense match",
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"datePublished": "2026-07-25T08:51:40.299Z",
"dateReserved": "2026-07-19T15:36:31.791Z",
"dateUpdated": "2026-07-25T08:51:40.299Z",
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"date": "2026-07-25",
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During that repeated hotplug,\\nsnd_dualsense_ih_match() can run while the controller\u0027s USB device is\\nbeing disconnected. kobject_get_path() walks ancestor kobjects and\\ndereferences their names; if the USB device kobject name is no longer\\nvalid, this can fault in strlen():\\n\\n RIP: 0010:strlen+0x10/0x30\\n Call Trace:\\n kobject_get_path+0x34/0x150\\n snd_dualsense_ih_match+0x49/0xd0 [snd_usb_audio]\\n input_register_device+0x566/0x6a0\\n ps_probe+0xb89/0x1590 [hid_playstation]\\n\\nThe same ownership check can be done without building kobject path\\nstrings. The input device is parented below the HID device, USB interface\\nand USB device, so walking the input device parent chain and comparing\\nagainst the mixer USB device preserves the check without dereferencing\\nkobject names during disconnect.\"}],\"affected\":[{\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\",\"affectedData\":[{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"unaffected\",\"programFiles\":[\"sound/usb/mixer_quirks.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"d0b0264009596c07a77d82808b0dae72bc04ac5c\",\"lessThan\":\"e4c66a149c408e44e60bfec3fabf08b6b7abbc60\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"b4b94f092f193d7a2db8e82af5e51519ae89963c\",\"lessThan\":\"4566bf8ae9dbfe81bdc2ff1702d59db8a233b06e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"c2d5b0a6c688ffb32c35627e337fbbcc65bc275f\",\"lessThan\":\"662a1d7b5affc424ea4f4bc20dd99be29e687886\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"d04d301614630724feb4048bf17432fc7964fe74\",\"lessThan\":\"a47ecd904c51ae6a42957feb3cf2f4266adee2e5\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"a705899ec6085b12a33aa0fd94a58e82e9e90502\",\"lessThan\":\"c1da6d3f45036fa63672ee04ad97cb526b40b987\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"79d561c4ec0497669f19a9550cfb74812f60938b\",\"lessThan\":\"a263eb12cbe2e208e6e637df0f9b0be9a484158e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"79d561c4ec0497669f19a9550cfb74812f60938b\",\"lessThan\":\"4246dd043b7a4f8e3bc1d2896e81d11220610eda\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"79d561c4ec0497669f19a9550cfb74812f60938b\",\"lessThan\":\"7693c0cc415f3a16a7a3355f245474a5e661be4e\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"104ad9bae11ee450fb7d0595ff7876cfb6527838\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"0105cfc41abeb428d4405951a20e1e239bea5e1d\",\"versionType\":\"git\",\"status\":\"affected\"},{\"version\":\"5.10.245\",\"lessThan\":\"5.10.261\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.15.194\",\"lessThan\":\"5.15.212\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.1.155\",\"lessThan\":\"6.1.178\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.6.109\",\"lessThan\":\"6.6.145\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.12.50\",\"lessThan\":\"6.12.96\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"5.4.300\",\"lessThan\":\"5.5\",\"versionType\":\"semver\",\"status\":\"affected\"},{\"version\":\"6.16.10\",\"lessThan\":\"6.17\",\"versionType\":\"semver\",\"status\":\"affected\"}]},{\"vendor\":\"Linux\",\"product\":\"Linux\",\"defaultStatus\":\"affected\",\"programFiles\":[\"sound/usb/mixer_quirks.c\"],\"repo\":\"https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git\",\"versions\":[{\"version\":\"6.17\",\"status\":\"affected\"},{\"version\":\"0\",\"lessThan\":\"6.17\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.10.261\",\"lessThanOrEqual\":\"5.10.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"5.15.212\",\"lessThanOrEqual\":\"5.15.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.1.178\",\"lessThanOrEqual\":\"6.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.6.145\",\"lessThanOrEqual\":\"6.6.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.12.96\",\"lessThanOrEqual\":\"6.12.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"6.18.39\",\"lessThanOrEqual\":\"6.18.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.1.4\",\"lessThanOrEqual\":\"7.1.*\",\"versionType\":\"semver\",\"status\":\"unaffected\"},{\"version\":\"7.2-rc1\",\"lessThanOrEqual\":\"*\",\"versionType\":\"original_commit_for_fix\",\"status\":\"unaffected\"}]}]}],\"metrics\":{},\"references\":[{\"url\":\"https://git.kernel.org/stable/c/4246dd043b7a4f8e3bc1d2896e81d11220610eda\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/4566bf8ae9dbfe81bdc2ff1702d59db8a233b06e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/662a1d7b5affc424ea4f4bc20dd99be29e687886\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/7693c0cc415f3a16a7a3355f245474a5e661be4e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a263eb12cbe2e208e6e637df0f9b0be9a484158e\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/a47ecd904c51ae6a42957feb3cf2f4266adee2e5\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/c1da6d3f45036fa63672ee04ad97cb526b40b987\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"},{\"url\":\"https://git.kernel.org/stable/c/e4c66a149c408e44e60bfec3fabf08b6b7abbc60\",\"source\":\"416baaa9-dc9f-4396-8d5f-8c081fb06d67\"}]}}",
"suse_vex": {
"aggregate_severity": "not set",
"current_release_date": "2026-07-25T15:58:35Z",
"cve": "CVE-2026-64478",
"id": "CVE-2026-64478",
"initial_release_date": "2026-07-25T15:58:35Z",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-64478",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-64478.json",
"version": "2"
}
}
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the
vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base
model, served locally by ML-Gateway.
They have not been verified by an analyst and are provided for guidance only.
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