CVE-2022-49548: Linux Kernel

High severity, CVSS 7.8. EPSS: 0.3% chance of exploitation in the next 30 days.

In the Linux kernel, the following vulnerability has been resolved: bpf: Fix potential array overflow in bpf_trampoline_get_progs() The cnt value in the 'cnt >= BPF_MAX_TRAMP_PROGS' check does not include BPF_TRAMP_MODIFY_RETURN bpf programs, so the number of the attached BPF_TRAMP_MODIFY_RETURN bpf programs in a trampoline can exceed BPF_MAX_TRAMP_PROGS. When this happens, the assignment '*progs++ = aux->prog' in bpf_trampoline_get_progs() will cause progs array overflow as the progs field in the bpf_tramp_progs struct can only hold at most BPF_MAX_TRAMP_PROGS bpf programs.

Affected products

• Linux Linux Kernel: from 5.7, before 5.10.120 (fixed in 5.10.120); from 5.11, before 5.15.45 (fixed in 5.15.45); from 5.16, before 5.17.13 (fixed in 5.17.13); from 5.18, before 5.18.2 (fixed in 5.18.2)

Published 2025-02-26. Last modified 2026-06-17.