CVE-2026-23083
N/A
N/A
Summary
In the Linux kernel, the following vulnerability has been resolved:
fou: Don't allow 0 for FOU_ATTR_IPPROTO.
fou_udp_recv() has the same problem mentioned in the previous patch.
If FOU_ATTR_IPPROTO is set to 0, skb is not freed by fou_udp_recv() nor "resubmit"-ted in ip_protocol_deliver_rcu().
Let's forbid 0 for FOU_ATTR_IPPROTO.
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Linux | Linux | 23461551c00628c3f3fe9cf837bf53cf8f212b63 < c7498f9bc390479ccfad7c7f2332237ff4945b03 | affected |
| Linux | Linux | 23461551c00628c3f3fe9cf837bf53cf8f212b63 < 611ef4bd9c73d9e6d87bed57a635ff1fdd8c91ea | affected |
| Linux | Linux | 23461551c00628c3f3fe9cf837bf53cf8f212b63 < 6e983789b7588ee59cbf303583546c043bad8e19 | affected |
| Linux | Linux | 23461551c00628c3f3fe9cf837bf53cf8f212b63 < 1cc98b8887cabb1808d2f4a37cd10a7be7574771 | affected |
| Linux | Linux | 23461551c00628c3f3fe9cf837bf53cf8f212b63 < b7db31a52c3862a1a32202a273a4c32e7f5f4823 | affected |
| Linux | Linux | 23461551c00628c3f3fe9cf837bf53cf8f212b63 < 9b75dff8446ec871030d8daf5a69e74f5fe8b956 | affected |
| Linux | Linux | 23461551c00628c3f3fe9cf837bf53cf8f212b63 < 7a9bc9e3f42391e4c187e099263cf7a1c4b69ff5 | affected |
| Linux | Linux | 3.18 | affected |
| Linux | Linux | 0 < 3.18 | unaffected |
| Linux | Linux | 5.10.249 <= 5.10.* | unaffected |
| Linux | Linux | 5.15.199 <= 5.15.* | unaffected |
| Linux | Linux | 6.1.162 <= 6.1.* | unaffected |
| Linux | Linux | 6.6.122 <= 6.6.* | unaffected |
| Linux | Linux | 6.12.68 <= 6.12.* | unaffected |
| Linux | Linux | 6.18.8 <= 6.18.* | unaffected |
| Linux | Linux | 6.19 <= * | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
References
- https://git.kernel.org/stable/c/c7498f9bc390479ccfad7c7f2332237ff4945b03
- https://git.kernel.org/stable/c/611ef4bd9c73d9e6d87bed57a635ff1fdd8c91ea
- https://git.kernel.org/stable/c/6e983789b7588ee59cbf303583546c043bad8e19
- https://git.kernel.org/stable/c/1cc98b8887cabb1808d2f4a37cd10a7be7574771
- https://git.kernel.org/stable/c/b7db31a52c3862a1a32202a273a4c32e7f5f4823
- https://git.kernel.org/stable/c/9b75dff8446ec871030d8daf5a69e74f5fe8b956
- https://git.kernel.org/stable/c/7a9bc9e3f42391e4c187e099263cf7a1c4b69ff5
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