CVE-2022-2905

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.

CVSS 3.1

5.5CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

EPSS

0.4% chance of exploitation in the next 30 days; higher than 29% of CVEs (scores of 2026-10-25)

CWE

CWE-125

Published

2022-09-09

Modified

2026-10-14

Record from

the NVD, synced 2026-10-19

Affected

• debian:debian_linux
• linux:linux_kernel
• redhat:enterprise_linux

References

• https://bugzilla.redhat.com/show_bug.cgi?id=2121800
• https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html
• https://lore.kernel.org/bpf/984b37f9fdf7ac36831d2137415a4a915744c1b6.1661462653.git.daniel%40iogearbox.net/
• https://bugzilla.redhat.com/show_bug.cgi?id=2121800
• https://lists.debian.org/debian-lts-announce/2022/11/msg00001.html

Check your stackJSON