CVE-2022-50490: Linux Kernel

High severity, CVSS 7.1. EPSS: 0.2% chance of exploitation in the next 30 days.

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

• Linux Linux Kernel: from 5.11, before 5.15.75 (fixed in 5.15.75); from 5.16, before 5.19.17 (fixed in 5.19.17); from 6.0, before 6.0.3 (fixed in 6.0.3)

Published 2025-10-04. Last modified 2026-08-04.