7.8
Élevée
CVE-2026-46331 In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page…
Description
In the Linux kernel, the following vulnerability has been resolved: net/sched: fix pedit partial COW leading to page cache corruption tcf_pedit_act() computes the COW range for skb_ensure_writable() once before the key loop using tcfp_off_max_hint, but the hint does not account for the runtime header offset added by typed keys. This can leave part of the write region un-COW'd. Fix by moving skb_ensure_writable() inside the per-key loop where the actual write offset is known, and add overflow checking on the offset arithmetic. For negative offsets (e.g. Ethernet header edits at ingress), use skb_cow() to COW the headroom instead. Guard offset_valid() against INT_MIN, where negation is undefined.
Produits et versions touchés
| Produit | Versions touchées | Corrigé en |
|---|---|---|
| Linux 7.1 | premières → < 7.1 | 7.1 |
| Linux 7.0 | premières → < 7.0.13 | 7.0.13 |
| Linux 6.18 | premières → < 6.18.36 | 6.18.36 |
| Linux 6.12 | premières → < 6.12.94 | 6.12.94 |
| Linux 6.6 | premières → < 6.6.144 | 6.6.144 |
| Linux 6.1 | premières → < 6.1.177 | 6.1.177 |
| Linux | 5.18 | Pas de correctif indiqué |
| Linux 5.15 | premières → < 5.15.211 | 5.15.211 |
| Linux 5.10 | premières → < 5.10.260 | 5.10.260 |
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Références
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
- git.kernel.org git.kernel.org
Chronologie
- Publiée
- Dernière modification
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