CVE-2022-50167Published

bpf: fix potential 32-bit overflow when accessing ARRAY map element

Exact source revision recorded 30 Oct 2026 13:45:33 UTC. It does not establish the source's current position. Latest evidence.

Recorded JSON

cve-program · CVE-2022-50167

Published

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.

Source published: 18 Jun 2025 11:03:20 UTC
Source modified: 30 Oct 2026 12:17:09 UTC
Observed here: 30 Oct 2026 13:45:33 UTC
Source terms: CVE Program Terms of Use

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CVSS 3.1 · 7.8 CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H