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vuln-cve/data/2026/98xxx/CVE-2026-98045.json
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{
"dataType": "CVE_RECORD",
"dataVersion": "5.2",
"cveMetadata": {
"cveId": "CVE-2026-98045",
"assignerOrgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"state": "PUBLISHED",
"assignerShortName": "Linux",
"dateReserved": "2026-09-25T10:19:56.071Z",
"datePublished": "2026-09-25T10:23:56.089Z",
"dateUpdated": "2026-10-19T09:12:51.065Z"
},
"containers": {
"cna": {
"providerMetadata": {
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux",
"dateUpdated": "2026-10-19T09:12:51.065Z"
},
"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Mark faultable stack helpers as sleepable\n\nThe faultable variants of bpf_get_stack() and bpf_get_task_stack() pass\nmay_fault=true into the common stack collection code. Resolving user-space\nbuild IDs may then call build_id_parse_file() and block on filesystem\nreads.\n\nNeither helper prototype sets might_sleep. Since prototype selection uses\nthe sleepability of the whole program, the verifier can still allow these\nhelpers from a non-sleepable region within that program, such as an\nexplicit RCU or preemption-disabled region. The task-stack helper can also\nbe called from a non-sleepable timer callback of a sleepable program.\n\nMark both faultable prototypes as sleepable. The existing helper context\ncheck then rejects these calls while continuing to allow them in genuinely\nsleepable contexts."
}
],
"affected": [
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "unaffected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"kernel/bpf/stackmap.c"
],
"versions": [
{
"version": "d4dd9775ec242425576af93daadb80a34083a53c",
"lessThan": "44b8d370f2725bad215da3e67668e98ba96671bd",
"status": "affected",
"versionType": "git"
},
{
"version": "d4dd9775ec242425576af93daadb80a34083a53c",
"lessThan": "3014e8a8bdad55075d89836ad9c10710a9a69837",
"status": "affected",
"versionType": "git"
},
{
"version": "d4dd9775ec242425576af93daadb80a34083a53c",
"lessThan": "19e8d5a98afd071d8c1c5adeccf92b3c42eddc70",
"status": "affected",
"versionType": "git"
},
{
"version": "d4dd9775ec242425576af93daadb80a34083a53c",
"lessThan": "9d02927fdf4e930893c92e35fed01a2704496900",
"status": "affected",
"versionType": "git"
}
]
},
{
"product": "Linux",
"vendor": "Linux",
"defaultStatus": "affected",
"repo": "https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git",
"programFiles": [
"kernel/bpf/stackmap.c"
],
"versions": [
{
"version": "6.12",
"status": "affected"
},
{
"version": "0",
"lessThan": "6.12",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.12.111",
"lessThanOrEqual": "6.12.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "6.18.53",
"lessThanOrEqual": "6.18.*",
"status": "unaffected",
"versionType": "semver"
},
{
"version": "7.2.7",
"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": "6.12",
"versionEndExcluding": "6.12.111"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.12",
"versionEndExcluding": "6.18.53"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.12",
"versionEndExcluding": "7.2.7"
},
{
"vulnerable": true,
"criteria": "cpe:2.3:o:linux:linux_kernel:*:*:*:*:*:*:*:*",
"versionStartIncluding": "6.12",
"versionEndExcluding": "7.3"
}
]
}
]
}
],
"references": [
{
"url": "https://git.kernel.org/stable/c/44b8d370f2725bad215da3e67668e98ba96671bd"
},
{
"url": "https://git.kernel.org/stable/c/3014e8a8bdad55075d89836ad9c10710a9a69837"
},
{
"url": "https://git.kernel.org/stable/c/19e8d5a98afd071d8c1c5adeccf92b3c42eddc70"
},
{
"url": "https://git.kernel.org/stable/c/9d02927fdf4e930893c92e35fed01a2704496900"
}
],
"title": "bpf: Mark faultable stack helpers as sleepable",
"x_generator": {
"engine": "bippy-1.2.0"
}
}
}
}