CVE-2022-50490 (GCVE-0-2022-50490)
Vulnerability from cvelistv5
Published
2025-10-04 15:43
Modified
2026-10-15 21:41
Severity ?
7.1 (High) - CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:H
Summary
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.
References
Impacted products
Vendor Product Version
Linux Linux Version: 20b6cc34ea74b6a84599c1f8a70f3315b56a1883
Version: 20b6cc34ea74b6a84599c1f8a70f3315b56a1883
Version: 20b6cc34ea74b6a84599c1f8a70f3315b56a1883
Version: 20b6cc34ea74b6a84599c1f8a70f3315b56a1883
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