Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 before 0e13425104903970a5ede853082d3bbb4edec6f3; affected 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 before 6bfee6eb3d6b96ae730a542909dd22b5f9f50d58; affected 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 before 4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d; affected 20b6cc34ea74b6a84599c1f8a70f3315b56a1883 before 66a7a92e4d0d091e79148a4c6ec15d1da65f4280 |
| Linux / Linux | affected 5.11; unaffected 0 before 5.11; unaffected 5.15.75 through 5.15.*; unaffected 5.19.17 through 5.19.*; unaffected 6.0.3 through 6.0.*; unaffected 6.1 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/0e13425104903970a5ede853082d3bbb4edec6f3
- https://git.kernel.org/stable/c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58
- https://git.kernel.org/stable/c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d
- https://git.kernel.org/stable/c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280
ADP enrichment
No English description supplied.
No references supplied.