Description (CNA)
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 (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected 07343110b293456d30393e89b86c4dee1ac051c8 before 2f8c69a72e8ad87b36b8052f789da3cc2b2e186c; affected 07343110b293456d30393e89b86c4dee1ac051c8 before 7bf4461f1c97207fda757014690d55a447ce859f; affected 07343110b293456d30393e89b86c4dee1ac051c8 before 2d834477bbc1e8b8a59ff8b0c081529d6bed7b22; affected 07343110b293456d30393e89b86c4dee1ac051c8 before b522d4d334f206284b1a44b0b0b2f99fd443b39b; affected 07343110b293456d30393e89b86c4dee1ac051c8 before d4965578267e2e81f67c86e2608481e77e9c8569 |
| Linux / Linux | affected 5.19; unaffected 0 before 5.19; unaffected 6.1.142 through 6.1.*; unaffected 6.6.95 through 6.6.*; unaffected 6.12.35 through 6.12.*; unaffected 6.15.4 through 6.15.*; unaffected 6.16 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/2f8c69a72e8ad87b36b8052f789da3cc2b2e186c
- https://git.kernel.org/stable/c/7bf4461f1c97207fda757014690d55a447ce859f
- https://git.kernel.org/stable/c/2d834477bbc1e8b8a59ff8b0c081529d6bed7b22
- https://git.kernel.org/stable/c/b522d4d334f206284b1a44b0b0b2f99fd443b39b
- https://git.kernel.org/stable/c/d4965578267e2e81f67c86e2608481e77e9c8569
ADP enrichment
No English description supplied.