CVE-2026-43426 (GCVE-0-2026-43426)
Vulnerability from cvelistv5
Published
2026-05-08 14:21
Modified
2026-05-11 22:24
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
usb: renesas_usbhs: fix use-after-free in ISR during device removal
In usbhs_remove(), the driver frees resources (including the pipe array)
while the interrupt handler (usbhs_interrupt) is still registered. If an
interrupt fires after usbhs_pipe_remove() but before the driver is fully
unbound, the ISR may access freed memory, causing a use-after-free.
Fix this by calling devm_free_irq() before freeing resources. This ensures
the interrupt handler is both disabled and synchronized (waits for any
running ISR to complete) before usbhs_pipe_remove() is called.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 Version: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 Version: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 Version: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 Version: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 Version: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 Version: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 Version: f1407d5c66240b33d11a7f1a41d55ccf6a9d7647 |
||
{
"containers": {
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"programFiles": [
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"version": "0",
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{
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"version": "5.15.203",
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{
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}
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}
],
"cpeApplicability": [
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],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: renesas_usbhs: fix use-after-free in ISR during device removal\n\nIn usbhs_remove(), the driver frees resources (including the pipe array)\nwhile the interrupt handler (usbhs_interrupt) is still registered. If an\ninterrupt fires after usbhs_pipe_remove() but before the driver is fully\nunbound, the ISR may access freed memory, causing a use-after-free.\n\nFix this by calling devm_free_irq() before freeing resources. This ensures\nthe interrupt handler is both disabled and synchronized (waits for any\nrunning ISR to complete) before usbhs_pipe_remove() is called."
}
],
"providerMetadata": {
"dateUpdated": "2026-05-11T22:24:21.643Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/c7012fc73dab4829404fedeeaa8531f12ac8545f"
},
{
"url": "https://git.kernel.org/stable/c/51afaf919bbaacdd9cc9e146033ae0a743a42dd7"
},
{
"url": "https://git.kernel.org/stable/c/1899edac312ef17a7234851686e8a703f56d0a84"
},
{
"url": "https://git.kernel.org/stable/c/9c6159d5b72d5fc265cce5da04f27d730b552e69"
},
{
"url": "https://git.kernel.org/stable/c/6287e0c01ccb818e7214f88d885ffb7c9e81b0e0"
},
{
"url": "https://git.kernel.org/stable/c/0b7d11fd6e742ecc0b1eca44b4f0b93140c74bae"
},
{
"url": "https://git.kernel.org/stable/c/6ffe44f022c95b1b29c691d2169c5abc046f7580"
},
{
"url": "https://git.kernel.org/stable/c/3cbc242b88c607f55da3d0d0d336b49bf1e20412"
}
],
"title": "usb: renesas_usbhs: fix use-after-free in ISR during device removal",
"x_generator": {
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}
}
},
"cveMetadata": {
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"assignerShortName": "Linux",
"cveId": "CVE-2026-43426",
"datePublished": "2026-05-08T14:21:59.668Z",
"dateReserved": "2026-05-01T14:12:56.009Z",
"dateUpdated": "2026-05-11T22:24:21.643Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2"
}
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Sightings
| Author | Source | Type | Date |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or seen somewhere by the user.
- Confirmed: The vulnerability is confirmed from an analyst perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: This vulnerability was exploited and seen by the user reporting the sighting.
- Patched: This vulnerability was successfully patched by the user reporting the sighting.
- Not exploited: This vulnerability was not exploited or seen by the user reporting the sighting.
- Not confirmed: The user expresses doubt about the veracity of the vulnerability.
- Not patched: This vulnerability was not successfully patched by the user reporting the sighting.
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