CVE-2022-50167
- Source
- https://cve.org/CVERecord?id=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
- 2025-06-18T11:03:20.997Z
- Modified
- 2026-03-20T12:22:32.941131Z
- Summary
- bpf: fix potential 32-bit overflow when accessing ARRAY map element
- 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.
- Database specific
{ "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50167.json", "cna_assigner": "Linux" }- References
-
- https://git.kernel.org/stable/c/063e092534d4c6785228e5b1eb6e9329f66ccbe4
- https://git.kernel.org/stable/c/3c7256b880b3a5aa1895fd169a34aa4224a11862
- https://git.kernel.org/stable/c/87ac0d600943994444e24382a87aa19acc4cd3d4
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2022/50xxx/CVE-2022-50167.json
- https://nvd.nist.gov/vuln/detail/CVE-2022-50167
- https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git