CVE-2022-50490

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Source
https://cve.org/CVERecord?id=CVE-2022-50490
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50490.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2022-50490
Downstream
Related
Published
2025-10-04T15:43:43.790Z
Modified
2026-03-20T11:47:29.540540Z
Summary
bpf: Propagate error from htab_lock_bucket() to userspace
Details

In the Linux kernel, the following vulnerability has been resolved:

bpf: Propagate error from htablockbucket() to userspace

In _htabmaplookupanddeletebatch() if htablockbucket() returns -EBUSY, it will go to next bucket. Going to next bucket may not only skip the elements in current bucket silently, but also incur out-of-bound memory access or expose kernel memory to userspace if current bucketcnt is greater than bucketsize or zero.

Fixing it by stopping batch operation and returning -EBUSY when htablockbucket() fails, and the application can retry or skip the busy batch as needed.

Database specific 
{
    "cna_assigner": "Linux",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50490.json"
}
References

Affected packages

Git / git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git

Affected ranges

Type
GIT
Repo
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
Events
Introduced
20b6cc34ea74b6a84599c1f8a70f3315b56a1883
Fixed
0e13425104903970a5ede853082d3bbb4edec6f3
Fixed
6bfee6eb3d6b96ae730a542909dd22b5f9f50d58
Fixed
4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d
Fixed
66a7a92e4d0d091e79148a4c6ec15d1da65f4280

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50490.json"