Description (CNA)
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.
Affected (CNA)
| Vendor / product | Versions |
|---|---|
| Linux / Linux | affected c85d69135a9175c50a823d04d62d932312d037b3 before 063e092534d4c6785228e5b1eb6e9329f66ccbe4; affected c85d69135a9175c50a823d04d62d932312d037b3 before 3c7256b880b3a5aa1895fd169a34aa4224a11862; affected c85d69135a9175c50a823d04d62d932312d037b3 before 87ac0d600943994444e24382a87aa19acc4cd3d4 |
| Linux / Linux | affected 5.3; unaffected 0 before 5.3; unaffected 5.18.18 through 5.18.*; unaffected 5.19.2 through 5.19.*; unaffected 6.0 through * |
CWE
No CWE identifiers supplied.
References
- https://git.kernel.org/stable/c/063e092534d4c6785228e5b1eb6e9329f66ccbe4
- https://git.kernel.org/stable/c/3c7256b880b3a5aa1895fd169a34aa4224a11862
- https://git.kernel.org/stable/c/87ac0d600943994444e24382a87aa19acc4cd3d4
ADP enrichment
No English description supplied.
No references supplied.