CVE-2022-50167
- Source
- https://nvd.nist.gov/vuln/detail/CVE-2022-50167
- Import Source
- https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2022-50167.json
- JSON Data
- https://api.test.osv.dev/v1/vulns/CVE-2022-50167
- Downstream
- Published
- 2025-06-18T11:15:47Z
- Modified
- 2025-08-09T20:01:27Z
- Summary
- [none]
- Details
-
In the Linux kernel, the following vulnerability has been resolved:
bpf: fix potential 32-bit overflow when accessing ARRAY map element
If BPF array map is bigger than 4GB, element pointer calculation can overflow because both index and elem_size are u32. Fix this everywhere by forcing 64-bit multiplication. Extract this formula into separate small helper and use it consistently in various places.
Speculative-preventing formula utilizing index_mask trick is left as is, but explicit u64 casts are added in both places.
- References