CVE-2026-74457 (GCVE-0-2026-74457)
Vulnerability from cvelistv5
Published
2026-08-15 12:26
Modified
2026-08-19 16:36
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
can: peak_usb: add bounds check for USB channel index
The channel control index ctrl_idx is derived from rx->len which comes
directly from a device USB payload. The mask 0x0f allows values 0-15, but
the array size of usb_if->dev[] is only 2. Values 2-15 cause heap
out-of-bounds read, eventually causing kernel panic in the IRQ context.
Add bounds checking for ctrl_idx before the array access in both
pcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error().
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: d8a199355f8f8a0797c00d98788d7282c9ea38bd Version: d8a199355f8f8a0797c00d98788d7282c9ea38bd Version: d8a199355f8f8a0797c00d98788d7282c9ea38bd Version: d8a199355f8f8a0797c00d98788d7282c9ea38bd Version: d8a199355f8f8a0797c00d98788d7282c9ea38bd Version: d8a199355f8f8a0797c00d98788d7282c9ea38bd Version: d8a199355f8f8a0797c00d98788d7282c9ea38bd Version: d8a199355f8f8a0797c00d98788d7282c9ea38bd |
||
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/net/can/usb/peak_usb/pcan_usb_pro.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
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"status": "affected",
"version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
"versionType": "git"
},
{
"lessThan": "0c9268457bd6e4058fe55b4db01b16661c2eacf5",
"status": "affected",
"version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
"versionType": "git"
},
{
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"status": "affected",
"version": "d8a199355f8f8a0797c00d98788d7282c9ea38bd",
"versionType": "git"
},
{
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"status": "affected",
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},
{
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"versionType": "git"
},
{
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}
]
},
{
"defaultStatus": "affected",
"product": "Linux",
"programFiles": [
"drivers/net/can/usb/peak_usb/pcan_usb_pro.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"status": "affected",
"version": "3.4"
},
{
"lessThan": "3.4",
"status": "unaffected",
"version": "0",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.10.*",
"status": "unaffected",
"version": "5.10.265",
"versionType": "semver"
},
{
"lessThanOrEqual": "5.15.*",
"status": "unaffected",
"version": "5.15.216",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.1.*",
"status": "unaffected",
"version": "6.1.183",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.6.*",
"status": "unaffected",
"version": "6.6.151",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"version": "6.12.103",
"versionType": "semver"
},
{
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"version": "6.18.44",
"versionType": "semver"
},
{
"lessThanOrEqual": "7.1.*",
"status": "unaffected",
"version": "7.1.8",
"versionType": "semver"
},
{
"lessThanOrEqual": "*",
"status": "unaffected",
"version": "7.2",
"versionType": "original_commit_for_fix"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.265",
"versionStartIncluding": "3.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.216",
"versionStartIncluding": "3.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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{
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.44",
"versionStartIncluding": "3.4",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.8",
"versionStartIncluding": "3.4",
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},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
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"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncan: peak_usb: add bounds check for USB channel index\n\nThe channel control index ctrl_idx is derived from rx-\u003elen which comes\ndirectly from a device USB payload. The mask 0x0f allows values 0-15, but\nthe array size of usb_if-\u003edev[] is only 2. Values 2-15 cause heap\nout-of-bounds read, eventually causing kernel panic in the IRQ context.\n\nAdd bounds checking for ctrl_idx before the array access in both\npcan_usb_pro_handle_canmsg() and pcan_usb_pro_handle_error()."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T16:36:52.931Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/18b1a868a2cda66fb438007ba47ce5f2484db381"
},
{
"url": "https://git.kernel.org/stable/c/0c9268457bd6e4058fe55b4db01b16661c2eacf5"
},
{
"url": "https://git.kernel.org/stable/c/94fb6fe83ce152532b11b36730b30f3dc0c94217"
},
{
"url": "https://git.kernel.org/stable/c/825c903ca3c98cd0cf0e3de8ab8f2604a5339b3f"
},
{
"url": "https://git.kernel.org/stable/c/f97b7e5e1cdaae15cd95b3a360028c7929664969"
},
{
"url": "https://git.kernel.org/stable/c/1acab790b7cecd4e144d1d18bdfe549e282f6b0b"
},
{
"url": "https://git.kernel.org/stable/c/0149fdb50a30944827acf9600a2cc44de0325a7f"
},
{
"url": "https://git.kernel.org/stable/c/39132f166ca8ce00ae60d8a9068e06a60943cc4b"
}
],
"title": "can: peak_usb: add bounds check for USB channel index",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-74457",
"datePublished": "2026-08-15T12:26:59.411Z",
"dateReserved": "2026-08-15T05:44:03.900Z",
"dateUpdated": "2026-08-19T16:36:52.931Z",
"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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