CVE-2022-50490
- 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
- 2025-10-04T15:43:43Z
- Modified
- 2026-08-12T03:30:51Z
- Severity
-
- 7.1 (High) CVSS_V3 - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H CVSS Calculator
- 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 htab_lock_bucket() to userspace
In __htab_map_lookup_and_delete_batch() if htab_lock_bucket() 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 bucket_cnt is greater than bucket_size or zero.
Fixing it by stopping batch operation and returning -EBUSY when htab_lock_bucket() 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
-
- https://git.kernel.org/stable/c/0e13425104903970a5ede853082d3bbb4edec6f3
- https://git.kernel.org/stable/c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d
- https://git.kernel.org/stable/c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280
- https://git.kernel.org/stable/c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50490.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-50490
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
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
-
Introduced20b6cc34ea74b6a84599c1f8a70f3315b56a1883Fixed0e13425104903970a5ede853082d3bbb4edec6f3Fixed6bfee6eb3d6b96ae730a542909dd22b5f9f50d58Fixed4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334dFixed66a7a92e4d0d091e79148a4c6ec15d1da65f4280