248 lines
12 KiB
JSON
248 lines
12 KiB
JSON
{
|
|
"dataType": "CVE_RECORD",
|
|
"dataVersion": "5.2",
|
|
"cveMetadata": {
|
|
"cveId": "CVE-2026-98775",
|
|
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"state": "PUBLISHED",
|
|
"assignerShortName": "Linux",
|
|
"dateReserved": "2026-09-25T10:25:14.369Z",
|
|
"datePublished": "2026-10-18T15:48:11.317Z",
|
|
"dateUpdated": "2026-10-30T12:39:42.932Z"
|
|
},
|
|
"containers": {
|
|
"cna": {
|
|
"providerMetadata": {
|
|
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
|
|
"shortName": "Linux",
|
|
"dateUpdated": "2026-10-30T12:39:42.932Z"
|
|
},
|
|
"descriptions": [
|
|
{
|
|
"lang": "en",
|
|
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nnitro_enclaves: fix use-after-free on SLOT_ALLOC failure\n\nWhen ne_create_vm_ioctl() fails the SLOT_ALLOC request after\nanon_inode_getfile() has succeeded, the error path calls\nfput(enclave_file) and then frees ne_enclave.\n\nIn normal userspace context, fput() defers the final __fput() via\ntask_work. ne_enclave_release() therefore runs after ne_enclave has\nalready been freed and dereferences ne_enclave->slot_uid, causing a\nuse-after-free: KASAN: slab-use-after-free in ne_enclave_release.\n\nThe enclave has no slot allocated and is not yet linked into the\nenclaves list on this error path, so ne_enclave_release() is expected\nto return early when slot_uid is zero. However, reading slot_uid\nalready accesses the freed object.\n\nClear enclave_file->private_data before fput() on the error path.\nne_enclave_release() then returns immediately when private_data is\nNULL, leaving the ioctl error path as the sole owner of ne_enclave.\nThis is safe because the file has not been fd_install()'d yet.\n\nTested on an AWS EC2 m5.2xlarge with CONFIG_KASAN=y. Without the\npatch, the reproducer triggers a KASAN slab-use-after-free on every\nSLOT_ALLOC failure. With the patch, no KASAN report is produced and\nthe SLOT_ALLOC error is still returned. Normal enclave creation and\nteardown are unaffected."
|
|
}
|
|
],
|
|
"affected": [
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "unaffected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/virt/nitro_enclaves/ne_misc_dev.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "9c8eb50fe9e2bb8a2e725979e052fbf592b6b799",
|
|
"lessThan": "718965a5fcea47f7ec6accff55306317aadc3af3",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9c8eb50fe9e2bb8a2e725979e052fbf592b6b799",
|
|
"lessThan": "dac89ed976d9826eae4703281d0d51b062b58eef",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9c8eb50fe9e2bb8a2e725979e052fbf592b6b799",
|
|
"lessThan": "8024c50b8763add7912b6d9830327ba73f994204",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9c8eb50fe9e2bb8a2e725979e052fbf592b6b799",
|
|
"lessThan": "8bde6f643ab6fe5e3e3f4c312f84ce327ecf39b2",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9c8eb50fe9e2bb8a2e725979e052fbf592b6b799",
|
|
"lessThan": "466041d14f26dc2babd606a2e85dce08774112a6",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9c8eb50fe9e2bb8a2e725979e052fbf592b6b799",
|
|
"lessThan": "f7fb6c2835ede1b8ad84cf7e78a528a9d0159b84",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9c8eb50fe9e2bb8a2e725979e052fbf592b6b799",
|
|
"lessThan": "43f78b328f3907ca2f7424e15b7e45ffbf9fe21c",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
},
|
|
{
|
|
"version": "9c8eb50fe9e2bb8a2e725979e052fbf592b6b799",
|
|
"lessThan": "9bc184a2eda8b773c88ecbff934001ad649b9cc1",
|
|
"status": "affected",
|
|
"versionType": "git"
|
|
}
|
|
]
|
|
},
|
|
{
|
|
"product": "Linux",
|
|
"vendor": "Linux",
|
|
"defaultStatus": "affected",
|
|
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
|
|
"programFiles": [
|
|
"drivers/virt/nitro_enclaves/ne_misc_dev.c"
|
|
],
|
|
"versions": [
|
|
{
|
|
"version": "5.10",
|
|
"status": "affected"
|
|
},
|
|
{
|
|
"version": "0",
|
|
"lessThan": "5.10",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.10.273",
|
|
"lessThanOrEqual": "5.10.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "5.15.224",
|
|
"lessThanOrEqual": "5.15.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.1.191",
|
|
"lessThanOrEqual": "6.1.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.6.160",
|
|
"lessThanOrEqual": "6.6.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.12.113",
|
|
"lessThanOrEqual": "6.12.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "6.18.56",
|
|
"lessThanOrEqual": "6.18.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.2.10",
|
|
"lessThanOrEqual": "7.2.*",
|
|
"status": "unaffected",
|
|
"versionType": "semver"
|
|
},
|
|
{
|
|
"version": "7.3",
|
|
"lessThanOrEqual": "*",
|
|
"status": "unaffected",
|
|
"versionType": "original_commit_for_fix"
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"cpeApplicability": [
|
|
{
|
|
"nodes": [
|
|
{
|
|
"operator": "OR",
|
|
"negate": false,
|
|
"cpeMatch": [
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "5.10.273"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "5.15.224"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "6.1.191"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "6.6.160"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "6.12.113"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "6.18.56"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "7.2.10"
|
|
},
|
|
{
|
|
"vulnerable": true,
|
|
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
|
|
"versionStartIncluding": "5.10",
|
|
"versionEndExcluding": "7.3"
|
|
}
|
|
]
|
|
}
|
|
]
|
|
}
|
|
],
|
|
"references": [
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/718965a5fcea47f7ec6accff55306317aadc3af3"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/dac89ed976d9826eae4703281d0d51b062b58eef"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/8024c50b8763add7912b6d9830327ba73f994204"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/8bde6f643ab6fe5e3e3f4c312f84ce327ecf39b2"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/466041d14f26dc2babd606a2e85dce08774112a6"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/f7fb6c2835ede1b8ad84cf7e78a528a9d0159b84"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/43f78b328f3907ca2f7424e15b7e45ffbf9fe21c"
|
|
},
|
|
{
|
|
"url": "https://git.kernel.org/stable/c/9bc184a2eda8b773c88ecbff934001ad649b9cc1"
|
|
}
|
|
],
|
|
"title": "nitro_enclaves: fix use-after-free on SLOT_ALLOC failure",
|
|
"x_generator": {
|
|
"engine": "bippy-1.2.0"
|
|
}
|
|
}
|
|
}
|
|
} |