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vuln-cve/data/2026/80xxx/CVE-2026-80565.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-80565",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-08-26T14:34:25.767Z",
"datePublished": "2026-08-26T14:37:28.953Z",
"dateUpdated": "2026-08-27T05:01:50.972Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-08-27T05:01:50.972Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\ncrypto: qce - fix error path in devm_qce_register_algs\n\nIf ops->register_algs() fails, the error path repeatedly calls the same\nops->unregister_algs() from the failed registration. Use the loop index\nto unregister the previously registered algorithms instead."
}
],
"metrics": [
{
"cvssV3_1": {
"version": "3.1",
"vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H",
"baseScore": 7.8,
"baseSeverity": "HIGH"
},
"scenarios": [
{
"lang": "en",
"value": "AV:L - The flaw is in devm_qce_register_algs() called only from qce_crypto_probe() during platform-driver initialization at boot or qcrypto module load, not from any network, ioctl, or AF_ALG userspace path.\nAC:L - On modular builds an attacker can reload qcrypto under memory pressure to force register_algs() failure, and once algorithms leak the UAF is reliably triggered by normal kernel crypto consumers such as fscrypt selecting high-priority QCE transforms.\nPR:L - After the flawed probe error path leaves QCE algorithms registered, unprivileged local processes on Qualcomm phones and embedded targets reach them through routine fscrypt/dm-crypt kernel crypto without capabilities or init-namespace root.\nUI:N - Exploitation requires no victim interaction beyond ordinary encrypted filesystem or storage activity that automatically exercises kernel crypto after the probe failure has occurred.\nS:U - Impact is confined to kernel memory corruption and privilege escalation within the same kernel security domain, not a VM, IOMMU, or sandbox boundary crossing.\nC:H - Leaked algorithm templates retain tmpl->qce pointers to the devm-freed qce_device, creating a kernel heap use-after-free that can be leveraged for arbitrary kernel memory disclosure.\nI:H - The dangling qce_device UAF corrupts kernel heap objects and control fields (mutex, DMA, MMIO pointers) reachable from crypto request handlers, enabling arbitrary write and potential code execution.\nA:H - Dereferencing the freed qce_device during QCE crypto operations can cause kernel oops, panic, or hang, and UAF corruption inherently threatens system availability."
}
]
}
],
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{
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"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
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"versionType": "original_commit_for_fix"
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"cpeApplicability": [
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"negate": false,
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"references": [
{
"url": "https://git.kernel.org/stable/c/dbca8b798caf47fb2799a26dd09c9ad66305883d"
},
{
"url": "https://git.kernel.org/stable/c/fef187c6194d67395182d58169dd14ba631f1b41"
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{
"url": "https://git.kernel.org/stable/c/1ece8e16c085e8cd60ecbdb641269aaa53d31da4"
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{
"url": "https://git.kernel.org/stable/c/de52c713d21806b93b00a6074056b57aec4f8919"
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{
"url": "https://git.kernel.org/stable/c/c7dc487aade12c692add3221673c9bdf32dc24f5"
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{
"url": "https://git.kernel.org/stable/c/a134e4b8102c077286818ee112b9f925db613d4c"
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{
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},
{
"url": "https://git.kernel.org/stable/c/9c75402286409f5e1a75e4a445555c84066f89db"
}
],
"title": "crypto: qce - fix error path in devm_qce_register_algs",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}
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