CVE-2026-90300 (GCVE-0-2026-90300)
Vulnerability from cvelistv5
Published
2026-09-17 16:08
Modified
2026-10-30 12:35
Severity ?
VLAI Severity ?
EPSS score ?
Summary
In the Linux kernel, the following vulnerability has been resolved:
bpf: Clear buf on error in __bpf_get_task_stack
Both bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that
use __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM
argument and we should initialize the buf on every return path.
Adding missing buf memset for __bpf_get_task_stack fail paths. This
provides deterministic buffer contents, which is useful when the buffer
is used directly as a map key.
References
Impacted products
| Vendor | Product | Version | ||
|---|---|---|---|---|
| Linux | Linux |
Version: 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df Version: 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df Version: 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df Version: 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df Version: 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df Version: 06ab134ce8ecfa5a69e850f88f81c8a4c3fa91df Version: d921baabd96445ef9c9c9410ca06164359c8a1a5 Version: 9c020a533eaae1c2d41a7e3835c4c818a9b4b656 Version: ff6bdc205fd0a83bd365405d4e31fb5905826996 Version: 5.10.30 ≤ Version: 5.11.14 ≤ Version: 5.10.96 ≤ |
||
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"descriptions": [
{
"lang": "en",
"value": "In the Linux kernel, the following vulnerability has been resolved:\n\nbpf: Clear buf on error in __bpf_get_task_stack\n\nBoth bpf_get_task_stack and bpf_get_task_stack_sleepable helpers that\nuse __bpf_get_task_stack have buf defined as ARG_PTR_TO_UNINIT_MEM\nargument and we should initialize the buf on every return path.\n\nAdding missing buf memset for __bpf_get_task_stack fail paths. This\nprovides deterministic buffer contents, which is useful when the buffer\nis used directly as a map key."
}
],
"providerMetadata": {
"dateUpdated": "2026-10-30T12:35:04.681Z",
"orgId": "416baaa9-dc9f-4396-8d5f-8c081fb06d67",
"shortName": "Linux"
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"references": [
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{
"url": "https://git.kernel.org/stable/c/4acc761b4e3feca1eb648d21fc4d665b23c5372d"
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{
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{
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{
"url": "https://git.kernel.org/stable/c/f5d242825ca417bb6afe35fde6e8880f97ca43fb"
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],
"title": "bpf: Clear buf on error in __bpf_get_task_stack",
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"cveId": "CVE-2026-90300",
"datePublished": "2026-09-17T16:08:24.515Z",
"dateReserved": "2026-09-11T19:38:34.799Z",
"dateUpdated": "2026-10-30T12:35:04.681Z",
"state": "PUBLISHED"
},
"dataType": "CVE_RECORD",
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}
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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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