CVE-2022-50490
bpf: Propagate error from htab_lock_bucket() to userspace
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
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.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Oct 4, 2025 |
| Last Updated | May 11, 2026 |
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Affected Versions
Linux / Linux
20b6cc34ea74b6a84599c1f8a70f3315b56a1883 < 0e13425104903970a5ede853082d3bbb4edec6f3 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 < 6bfee6eb3d6b96ae730a542909dd22b5f9f50d58 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 < 4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 < 66a7a92e4d0d091e79148a4c6ec15d1da65f4280
Linux / Linux
5.11
References
git.kernel.org: https://git.kernel.org/stable/c/0e13425104903970a5ede853082d3bbb4edec6f3 git.kernel.org: https://git.kernel.org/stable/c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58 git.kernel.org: https://git.kernel.org/stable/c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d git.kernel.org: https://git.kernel.org/stable/c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280