Description
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.
Product status
20b6cc34ea74b6a84599c1f8a70f3315b56a1883 before 0e13425104903970a5ede853082d3bbb4edec6f3
20b6cc34ea74b6a84599c1f8a70f3315b56a1883 before 6bfee6eb3d6b96ae730a542909dd22b5f9f50d58
20b6cc34ea74b6a84599c1f8a70f3315b56a1883 before 4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d
20b6cc34ea74b6a84599c1f8a70f3315b56a1883 before 66a7a92e4d0d091e79148a4c6ec15d1da65f4280
5.11
Any version before 5.11
5.15.75
5.19.17
6.0.3
6.1
References
git.kernel.org/...c/0e13425104903970a5ede853082d3bbb4edec6f3
git.kernel.org/...c/6bfee6eb3d6b96ae730a542909dd22b5f9f50d58
git.kernel.org/...c/4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334d
git.kernel.org/...c/66a7a92e4d0d091e79148a4c6ec15d1da65f4280
