CVE-2025-40236
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
virtio-net: zero unused hash fields
When GSO tunnel is negotiated virtio_net_hdr_tnl_from_skb() tries to initialize the tunnel metadata but forget to zero unused rxhash fields. This may leak information to another side. Fixing this by zeroing the unused hash fields.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | a2fb4bc4e2a6a031683910d85b278c1d25ae5420 < b625d231c66a6041e98817ffc944bf6e4c45b2e3 | affected |
| Linux | Linux | a2fb4bc4e2a6a031683910d85b278c1d25ae5420 < b2284768c6b32aa224ca7d0ef0741beb434f03aa | affected |
| Linux | Linux | 6.17 | affected |
| Linux | Linux | 0 < 6.17 | unaffected |
| Linux | Linux | 6.17.6 <= 6.17.* | unaffected |
| Linux | Linux | 6.18 <= * | unaffected |
Weaknesses
References
- https://git.kernel.org/stable/c/b625d231c66a6041e98817ffc944bf6e4c45b2e3
- https://git.kernel.org/stable/c/b2284768c6b32aa224ca7d0ef0741beb434f03aa
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