Non notée
CVE-2026-46234 vsock: fix buffer size clamping order
Description
In the Linux kernel, the following vulnerability has been resolved: vsock: fix buffer size clamping order In vsock_update_buffer_size(), the buffer size was being clamped to the maximum first, and then to the minimum. If a user sets a minimum buffer size larger than the maximum, the minimum check overrides the maximum check, inverting the constraint. This breaks the intended socket memory boundaries by allowing the vsk->buffer_size to grow beyond the configured vsk->buffer_max_size. Fix this by checking the minimum first, and then the maximum. This ensures the buffer size never exceeds the buffer_max_size.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 7.1 | premières → < 7.1 | 7.1 |
| Linux 7.0 | premières → < 7.0.9 | 7.0.9 |
| Linux 6.18 | premières → < 6.18.32 | 6.18.32 |
| Linux 6.12 | premières → < 6.12.90 | 6.12.90 |
| Linux 6.6 | premières → < 6.6.140 | 6.6.140 |
| Linux 6.1 | premières → < 6.1.175 | 6.1.175 |
| Linux 5.15 | premières → < 5.15.209 | 5.15.209 |
| Linux 5.10 | premières → < 5.10.258 | 5.10.258 |
| Linux | 5.5 | Pas de correctif indiqué |
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| Produit | Versions touchées | Corrigé en |
|---|---|---|
| SIMATIC S7-1500 TM MFP - GNU/Linux subsystem | Versions non publiées |
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