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.
Affected products
Version statuses are supplied by the assigning organization. Consult the original record for detailed ranges and platform conditions.
Linux Linux
Default version status: unaffected
20b6cc34ea74b6a84599c1f8a70f3315b56a1883 to < 0e13425104903970a5ede853082d3bbb4edec6f3affected20b6cc34ea74b6a84599c1f8a70f3315b56a1883 to < 6bfee6eb3d6b96ae730a542909dd22b5f9f50d58affected20b6cc34ea74b6a84599c1f8a70f3315b56a1883 to < 4f1f39a8f1ce1b24fee6852d7dcd704ce7c4334daffected20b6cc34ea74b6a84599c1f8a70f3315b56a1883 to < 66a7a92e4d0d091e79148a4c6ec15d1da65f4280affected
Linux Linux
Default version status: affected
5.11affected0 to < 5.11unaffected5.15.75 to ≤ 5.15.*unaffected5.19.17 to ≤ 5.19.*unaffected6.0.3 to ≤ 6.0.*unaffected6.1 to ≤ *unaffected