What’s Vulnerable › Vulnerabilities

CVE-2022-2785: Arbitrary Memory read in BPF Linux Kernel

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.3% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-09-23 · updated 2026-06-17
• Weakness: CWE-125

Description

There exists an arbitrary memory read within the Linux Kernel BPF - Constants provided to fill pointers in structs passed in to bpf_sys_bpf are not verified and can point anywhere, including memory not owned by BPF. An attacker with CAP_BPF can arbitrarily read memory from anywhere on the system. We recommend upgrading past commit 86f44fcec22c

Affected products

• Linux kernel: before 5.19.4 — fixed in 5.19.4

How to fix

Upgrade to a fixed version: Linux kernel 5.19.4. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/bpf/bpf/c/86f44fcec22c
• https://lore.kernel.org/bpf/20220816205517.682470-1-zhuyifei%40google.com/T/#t
• https://git.kernel.org/bpf/bpf/c/86f44fcec22c
• https://lore.kernel.org/bpf/20220816205517.682470-1-zhuyifei%40google.com/T/#t

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