CVE-2026-68344 (GCVE-0-2026-68344)
Vulnerability from cvelistv5 – Published: 2026-08-10 12:03 – Updated: 2026-08-19 16:33
VLAI
EPSS
VEX
Title
usb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect
Summary
In the Linux kernel, the following vulnerability has been resolved:
usb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect
uea_probe() distinguishes a pre-firmware device from a post-firmware one
using the USB id (UEA_IS_PREFIRM()), and stores a different object as the
interface data in each case: a 'struct completion' for a pre-firmware
device (to be waited on in .disconnect()), or a 'struct usbatm_data' for a
post-firmware one.
uea_disconnect() instead tells the two apart by the number of interfaces
of the active configuration (a pre-firmware device exposes a single
interface, ADI930 has 2 and eagle has 3), and casts the interface data
accordingly.
Because the two handlers use different criteria, a crafted device that
advertises a pre-firmware id together with a multi-interface descriptor
(or a post-firmware id with a single interface) makes them disagree: the
small 'struct completion' stored by uea_probe() is then passed to
usbatm_usb_disconnect(), which casts it to 'struct usbatm_data' and takes
instance->serialize, reading past the end of the allocation:
BUG: KASAN: slab-out-of-bounds in __mutex_lock+0x152a/0x1b80
Read of size 8 at addr ffff8880470e2c60 by task kworker/1:2/982
...
__mutex_lock+0x152a/0x1b80
usbatm_usb_disconnect+0x70/0x820
uea_disconnect+0x133/0x2c0
usb_unbind_interface+0x1dd/0x9e0
...
which belongs to the cache kmalloc-96 of size 96
The buggy address is located 0 bytes to the right of
allocated 96-byte region [ffff8880470e2c00, ffff8880470e2c60)
Reject such inconsistent descriptors in uea_probe() so that both handlers
always make the same pre/post-firmware decision.
Severity
No CVSS data available.
Assigner
References
8 references
Impacted products
2 products
| Vendor | Product | Version | CPE status | |
|---|---|---|---|---|
| Linux | Linux |
Affected:
d85f19aaef42a03e3e4765d659c761c8750a7f23 , < 9e7312844429379108ea9523a5ed934f142bb177
(git)
Affected: 76861031b43a18065d13f9ffb8595d25c7576005 , < f92832262718443feb4e5df2bf70424ba842629e (git) Affected: bbfedc84714064ea4845e6b76f96316eb5bb65d8 , < e814ae925f6f575325124c29dde518b92c822b83 (git) Affected: f2a6abc670104fc3e383ee3b1cf35c070485e3df , < c035b1198906dd5bd3df9a3045b59254bad1ea7a (git) Affected: c581e30ae5b332d8acef64475a211b3f82099941 , < 9904a46401198872ab3de34fd11f383831ef3428 (git) Affected: 509b51327320bdeaef1969248177a446ded073ab , < d0a57f19fe2865b9747484f5f9c631f944ed9a0f (git) Affected: ddcdac47e1f2651c7be60e299f98faf981522797 , < 0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce (git) Affected: e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf , < 71132cedd1ecbc4032d76e9928c18a10f7e39b80 (git) |
guessed | |
| Linux | Linux |
Affected:
5.10.261 , < 5.10.265
(semver)
Affected: 5.15.212 , < 5.15.216 (semver) Affected: 6.1.178 , < 6.1.183 (semver) Affected: 6.6.145 , < 6.6.148 (semver) Affected: 6.12.97 , < 6.12.101 (semver) Affected: 6.18.40 , < 6.18.42 (semver) Affected: 7.1.5 , < 7.1.6 (semver) |
guessed |
{
"containers": {
"cna": {
"affected": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/usb/atm/ueagle-atm.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "9e7312844429379108ea9523a5ed934f142bb177",
"status": "affected",
"version": "d85f19aaef42a03e3e4765d659c761c8750a7f23",
"versionType": "git"
},
{
"lessThan": "f92832262718443feb4e5df2bf70424ba842629e",
"status": "affected",
"version": "76861031b43a18065d13f9ffb8595d25c7576005",
"versionType": "git"
},
{
"lessThan": "e814ae925f6f575325124c29dde518b92c822b83",
"status": "affected",
"version": "bbfedc84714064ea4845e6b76f96316eb5bb65d8",
"versionType": "git"
},
{
"lessThan": "c035b1198906dd5bd3df9a3045b59254bad1ea7a",
"status": "affected",
"version": "f2a6abc670104fc3e383ee3b1cf35c070485e3df",
"versionType": "git"
},
{
"lessThan": "9904a46401198872ab3de34fd11f383831ef3428",
"status": "affected",
"version": "c581e30ae5b332d8acef64475a211b3f82099941",
"versionType": "git"
},
{
"lessThan": "d0a57f19fe2865b9747484f5f9c631f944ed9a0f",
"status": "affected",
"version": "509b51327320bdeaef1969248177a446ded073ab",
"versionType": "git"
},
{
"lessThan": "0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce",
"status": "affected",
"version": "ddcdac47e1f2651c7be60e299f98faf981522797",
"versionType": "git"
},
{
"lessThan": "71132cedd1ecbc4032d76e9928c18a10f7e39b80",
"status": "affected",
"version": "e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/usb/atm/ueagle-atm.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5.10.265",
"status": "affected",
"version": "5.10.261",
"versionType": "semver"
},
{
"lessThan": "5.15.216",
"status": "affected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThan": "6.1.183",
"status": "affected",
"version": "6.1.178",
"versionType": "semver"
},
{
"lessThan": "6.6.148",
"status": "affected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThan": "6.12.101",
"status": "affected",
"version": "6.12.97",
"versionType": "semver"
},
{
"lessThan": "6.18.42",
"status": "affected",
"version": "6.18.40",
"versionType": "semver"
},
{
"lessThan": "7.1.6",
"status": "affected",
"version": "7.1.5",
"versionType": "semver"
}
]
}
],
"cpeApplicability": [
{
"nodes": [
{
"cpeMatch": [
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.10.265",
"versionStartIncluding": "5.10.261",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "5.15.216",
"versionStartIncluding": "5.15.212",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.1.183",
"versionStartIncluding": "6.1.178",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.6.148",
"versionStartIncluding": "6.6.145",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.12.101",
"versionStartIncluding": "6.12.97",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "6.18.42",
"versionStartIncluding": "6.18.40",
"vulnerable": true
},
{
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionEndExcluding": "7.1.6",
"versionStartIncluding": "7.1.5",
"vulnerable": true
}
],
"negate": false,
"operator": "OR"
}
]
}
],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect\n\nuea_probe() distinguishes a pre-firmware device from a post-firmware one\nusing the USB id (UEA_IS_PREFIRM()), and stores a different object as the\ninterface data in each case: a \u0027struct completion\u0027 for a pre-firmware\ndevice (to be waited on in .disconnect()), or a \u0027struct usbatm_data\u0027 for a\npost-firmware one.\n\nuea_disconnect() instead tells the two apart by the number of interfaces\nof the active configuration (a pre-firmware device exposes a single\ninterface, ADI930 has 2 and eagle has 3), and casts the interface data\naccordingly.\n\nBecause the two handlers use different criteria, a crafted device that\nadvertises a pre-firmware id together with a multi-interface descriptor\n(or a post-firmware id with a single interface) makes them disagree: the\nsmall \u0027struct completion\u0027 stored by uea_probe() is then passed to\nusbatm_usb_disconnect(), which casts it to \u0027struct usbatm_data\u0027 and takes\ninstance-\u003eserialize, reading past the end of the allocation:\n\n BUG: KASAN: slab-out-of-bounds in __mutex_lock+0x152a/0x1b80\n Read of size 8 at addr ffff8880470e2c60 by task kworker/1:2/982\n ...\n __mutex_lock+0x152a/0x1b80\n usbatm_usb_disconnect+0x70/0x820\n uea_disconnect+0x133/0x2c0\n usb_unbind_interface+0x1dd/0x9e0\n ...\n which belongs to the cache kmalloc-96 of size 96\n The buggy address is located 0 bytes to the right of\n allocated 96-byte region [ffff8880470e2c00, ffff8880470e2c60)\n\nReject such inconsistent descriptors in uea_probe() so that both handlers\nalways make the same pre/post-firmware decision."
}
],
"providerMetadata": {
"dateUpdated": "2026-08-19T16:33:45.376Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
},
"references": [
{
"url": "https://git.kernel.org/stable/c/9e7312844429379108ea9523a5ed934f142bb177"
},
{
"url": "https://git.kernel.org/stable/c/f92832262718443feb4e5df2bf70424ba842629e"
},
{
"url": "https://git.kernel.org/stable/c/e814ae925f6f575325124c29dde518b92c822b83"
},
{
"url": "https://git.kernel.org/stable/c/c035b1198906dd5bd3df9a3045b59254bad1ea7a"
},
{
"url": "https://git.kernel.org/stable/c/9904a46401198872ab3de34fd11f383831ef3428"
},
{
"url": "https://git.kernel.org/stable/c/d0a57f19fe2865b9747484f5f9c631f944ed9a0f"
},
{
"url": "https://git.kernel.org/stable/c/0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce"
},
{
"url": "https://git.kernel.org/stable/c/71132cedd1ecbc4032d76e9928c18a10f7e39b80"
}
],
"title": "usb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
},
"cveMetadata": {
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"assignerShortName": "Linux",
"cveId": "CVE-2026-68344",
"datePublished": "2026-08-10T12:03:20.917Z",
"dateReserved": "2026-07-30T09:28:09.384Z",
"dateUpdated": "2026-08-19T16:33:45.376Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"vulnerability-lookup:meta": {
"epss": {
"cve": "CVE-2026-68344",
"date": "2026-10-01",
"epss": "0.0022",
"percentile": "0.1129"
},
"nvd": {
"cve": {
"affected": [
{
"affectedData": [
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/usb/atm/ueagle-atm.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "9e7312844429379108ea9523a5ed934f142bb177",
"status": "affected",
"version": "d85f19aaef42a03e3e4765d659c761c8750a7f23",
"versionType": "git"
},
{
"lessThan": "f92832262718443feb4e5df2bf70424ba842629e",
"status": "affected",
"version": "76861031b43a18065d13f9ffb8595d25c7576005",
"versionType": "git"
},
{
"lessThan": "e814ae925f6f575325124c29dde518b92c822b83",
"status": "affected",
"version": "bbfedc84714064ea4845e6b76f96316eb5bb65d8",
"versionType": "git"
},
{
"lessThan": "c035b1198906dd5bd3df9a3045b59254bad1ea7a",
"status": "affected",
"version": "f2a6abc670104fc3e383ee3b1cf35c070485e3df",
"versionType": "git"
},
{
"lessThan": "9904a46401198872ab3de34fd11f383831ef3428",
"status": "affected",
"version": "c581e30ae5b332d8acef64475a211b3f82099941",
"versionType": "git"
},
{
"lessThan": "d0a57f19fe2865b9747484f5f9c631f944ed9a0f",
"status": "affected",
"version": "509b51327320bdeaef1969248177a446ded073ab",
"versionType": "git"
},
{
"lessThan": "0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce",
"status": "affected",
"version": "ddcdac47e1f2651c7be60e299f98faf981522797",
"versionType": "git"
},
{
"lessThan": "71132cedd1ecbc4032d76e9928c18a10f7e39b80",
"status": "affected",
"version": "e2674dfbed8a30d57e2bc872c4bfa6c3eec918bf",
"versionType": "git"
}
]
},
{
"defaultStatus": "unaffected",
"product": "Linux",
"programFiles": [
"drivers/usb/atm/ueagle-atm.c"
],
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"vendor": "Linux",
"versions": [
{
"lessThan": "5.10.265",
"status": "affected",
"version": "5.10.261",
"versionType": "semver"
},
{
"lessThan": "5.15.216",
"status": "affected",
"version": "5.15.212",
"versionType": "semver"
},
{
"lessThan": "6.1.183",
"status": "affected",
"version": "6.1.178",
"versionType": "semver"
},
{
"lessThan": "6.6.148",
"status": "affected",
"version": "6.6.145",
"versionType": "semver"
},
{
"lessThan": "6.12.101",
"status": "affected",
"version": "6.12.97",
"versionType": "semver"
},
{
"lessThan": "6.18.42",
"status": "affected",
"version": "6.18.40",
"versionType": "semver"
},
{
"lessThan": "7.1.6",
"status": "affected",
"version": "7.1.5",
"versionType": "semver"
}
]
}
],
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67"
}
],
"cveTags": [],
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nusb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect\n\nuea_probe() distinguishes a pre-firmware device from a post-firmware one\nusing the USB id (UEA_IS_PREFIRM()), and stores a different object as the\ninterface data in each case: a \u0027struct completion\u0027 for a pre-firmware\ndevice (to be waited on in .disconnect()), or a \u0027struct usbatm_data\u0027 for a\npost-firmware one.\n\nuea_disconnect() instead tells the two apart by the number of interfaces\nof the active configuration (a pre-firmware device exposes a single\ninterface, ADI930 has 2 and eagle has 3), and casts the interface data\naccordingly.\n\nBecause the two handlers use different criteria, a crafted device that\nadvertises a pre-firmware id together with a multi-interface descriptor\n(or a post-firmware id with a single interface) makes them disagree: the\nsmall \u0027struct completion\u0027 stored by uea_probe() is then passed to\nusbatm_usb_disconnect(), which casts it to \u0027struct usbatm_data\u0027 and takes\ninstance-\u003eserialize, reading past the end of the allocation:\n\n BUG: KASAN: slab-out-of-bounds in __mutex_lock+0x152a/0x1b80\n Read of size 8 at addr ffff8880470e2c60 by task kworker/1:2/982\n ...\n __mutex_lock+0x152a/0x1b80\n usbatm_usb_disconnect+0x70/0x820\n uea_disconnect+0x133/0x2c0\n usb_unbind_interface+0x1dd/0x9e0\n ...\n which belongs to the cache kmalloc-96 of size 96\n The buggy address is located 0 bytes to the right of\n allocated 96-byte region [ffff8880470e2c00, ffff8880470e2c60)\n\nReject such inconsistent descriptors in uea_probe() so that both handlers\nalways make the same pre/post-firmware decision."
}
],
"id": "CVE-2026-68344",
"lastModified": "2026-08-19T17:20:44.223",
"metrics": {},
"published": "2026-08-10T13:20:24.947",
"references": [
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/0cc0c4c14150bb5a16b88dd61368f96cd4caa9ce"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/71132cedd1ecbc4032d76e9928c18a10f7e39b80"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9904a46401198872ab3de34fd11f383831ef3428"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/9e7312844429379108ea9523a5ed934f142bb177"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/c035b1198906dd5bd3df9a3045b59254bad1ea7a"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/d0a57f19fe2865b9747484f5f9c631f944ed9a0f"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/e814ae925f6f575325124c29dde518b92c822b83"
},
{
"source": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"url": "https://git.kernel.org/stable/c/f92832262718443feb4e5df2bf70424ba842629e"
}
],
"sourceIdentifier": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"vulnStatus": "Received"
}
},
"redhat_vex": {
"aggregate_severity": "Moderate",
"current_release_date": "2026-08-11T12:29:54+00:00",
"cve": "CVE-2026-68344",
"id": "CVE-2026-68344",
"initial_release_date": "2026-08-10T00:00:00+00:00",
"product_status:known_affected": "14",
"product_status:known_not_affected": "260",
"source": "Red Hat CSAF VEX",
"status": "final",
"title": "kernel: usb: atm: ueagle-atm: reject descriptors that confuse probe and disconnect",
"url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-68344.json",
"version": "3"
},
"suse_vex": {
"aggregate_severity": "moderate",
"current_release_date": "2026-09-30T15:05:56Z",
"cve": "CVE-2026-68344",
"id": "CVE-2026-68344",
"initial_release_date": "2026-08-11T23:47:04Z",
"product_status:known_affected": "2",
"product_status:known_not_affected": "374",
"product_status:recommended": "145",
"source": "SUSE CSAF VEX",
"status": "interim",
"title": "SUSE CVE CVE-2026-68344",
"url": "https://ftp.suse.com/pub/projects/security/csaf-vex/cve-2026-68344.json",
"version": "4"
}
}
}
Loading…
Loading…
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.
Loading…
Loading…
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.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Loading…
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.
Loading…