CVE-2025-38202

MEDIUM

MEDIUM Priority: 0.01 BB Relevance: 36/100

Published: 2025-07-04 Modified: 2026-11-05 First seen: 2026-11-05 Status: active

Attack Surface

Low Complexity No Interaction

CVSS Vector Breakdown

AV: Local

AC: Low

PR: Low

UI: None

S: Unchanged

C: None

I: None

A: High

Description

In the Linux kernel, the following vulnerability has been resolved: bpf: Check rcu_read_lock_trace_held() in bpf_map_lookup_percpu_elem() bpf_map_lookup_percpu_elem() helper is also available for sleepable bpf program. When BPF JIT is disabled or under 32-bit host, bpf_map_lookup_percpu_elem() will not be inlined. Using it in a sleepable bpf program will trigger the warning in bpf_map_lookup_percpu_elem(), because the bpf program only holds rcu_read_lock_trace lock. Therefore, add the missed check.

Affected Software (8)

Vendor	Product	Version
Linux	Linux	07343110b293456d30393e89b86c4dee1ac051c8 < 2f8c69a72e8ad87b36b8052f789da3cc2b2e186c
Linux	Linux	07343110b293456d30393e89b86c4dee1ac051c8 < 7bf4461f1c97207fda757014690d55a447ce859f
Linux	Linux	07343110b293456d30393e89b86c4dee1ac051c8 < 2d834477bbc1e8b8a59ff8b0c081529d6bed7b22
Linux	Linux	07343110b293456d30393e89b86c4dee1ac051c8 < b522d4d334f206284b1a44b0b0b2f99fd443b39b
Linux	Linux	07343110b293456d30393e89b86c4dee1ac051c8 < d4965578267e2e81f67c86e2608481e77e9c8569
Linux	Linux	5.19
debian	debian_linux	11.0
linux	linux_kernel	5.19 – 6.1.142