CVE-2022-2905: Debian Linux

Medium severity, CVSS 5.5. EPSS: 0.4% chance of exploitation in the next 30 days.

An out-of-bounds memory read flaw was found in the Linux kernel's BPF subsystem in how a user calls the bpf_tail_call function with a key larger than the max_entries of the map. This flaw allows a local user to gain unauthorized access to data.

Affected products

• Debian Debian Linux: version 10.0 only
• Linux Linux Kernel: before 6.0 (fixed in 6.0); version 6.0 only
• Red Hat Enterprise Linux: version 8.0 only

Published 2022-09-09. Last modified 2026-06-17.