What’s Vulnerable › Vulnerabilities

CVE-2022-3606: Linux Kernel BPF libbpf.c find_prog_by_sec_insn null pointer dereference

• Severity: medium (CVSS 5.5 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2022-10-19 · updated 2026-10-14
• Weakness: CWE-404

Description

A vulnerability was found in Linux Kernel. It has been classified as problematic. This affects the function find_prog_by_sec_insn of the file tools/lib/bpf/libbpf.c of the component BPF. The manipulation leads to null pointer dereference. It is recommended to apply a patch to fix this issue. The identifier VDB-211749 was assigned to this vulnerability.

Affected products

• Linux kernel: before 6.2 — fixed in 6.2

How to fix

Upgrade to a fixed version: Linux kernel 6.2. Check the vendor advisory for mitigations.

References

• https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d382f95a9270dcf803539d6781d6bd67e3f5b2
• https://vuldb.com/?id.211749
• https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=d0d382f95a9270dcf803539d6781d6bd67e3f5b2
• https://lists.debian.org/debian-lts-announce/2025/04/msg00033.html
• https://vuldb.com/?id.211749
• https://cert-portal.siemens.com/productcert/html/ssa-794697.html

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