CVE-2026-97417
netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack()
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: netfilter: nf_conntrack: use get_unaligned_be32() in tcp_sack() The timestamp-only fast path dereferences the option stream as *(__be32 *)ptr, which assumes 4-byte alignment that the TCP option stream does not guarantee. Use get_unaligned_be32() instead, which reads the value safely and already returns host byte order, so the htonl() on the comparison constant can be dropped. This matches the existing get_unaligned_be32() use later in the same function.
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Sep 24, 2026 |
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Affected Versions
Linux / Linux
1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 7ecfa46a536578a7ed335ddf31a854127268c27c 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < 4abc1af7ac209c066f4e5dd75cdd56876e5829a9 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 < d3bf9eae486490832bd08fd62ab0ac601f346bd4 0 < 6.12.111 0 < 6.18.53
Linux / Linux
All versions affected