CVE-2026-80637
netfilter: synproxy: fix unaligned memory access in timestamp adjustment
CVSS Score
0.0
EPSS Score
0.0%
EPSS Percentile
0th
In the Linux kernel, the following vulnerability has been resolved: netfilter: synproxy: fix unaligned memory access in timestamp adjustment Use get_unaligned_be32() and put_unaligned_be32() to safely read and write the timestamp fields. This prevents performance degradation due to unaligned memory access or even a crash on strict alignment architectures. This follows the implementation of timestamp parsing in the networking stack at tcp_parse_options() and synproxy_parse_options().
| Vendor | linux |
| Product | linux |
| Ecosystems | |
| Industries | Technology |
| Published | Aug 28, 2026 |
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Affected Versions
Linux / Linux
48b1de4c110a7afa4b85862f6c75af817db26fad < 2b8e7aaa38002d8ee2f48d87b1f392eadd8e98c4 48b1de4c110a7afa4b85862f6c75af817db26fad < 5c9c67cf7a3d16051dfb90e98836f530964dfb8e 48b1de4c110a7afa4b85862f6c75af817db26fad < ea3d2caa5bfacf5db5c1cad521ca5d9144edd9a7 48b1de4c110a7afa4b85862f6c75af817db26fad < 992c20bc8a4aba220c8b95b467d049289778dad6
Linux / Linux
3.12
References
git.kernel.org: https://git.kernel.org/stable/c/2b8e7aaa38002d8ee2f48d87b1f392eadd8e98c4 git.kernel.org: https://git.kernel.org/stable/c/5c9c67cf7a3d16051dfb90e98836f530964dfb8e git.kernel.org: https://git.kernel.org/stable/c/ea3d2caa5bfacf5db5c1cad521ca5d9144edd9a7 git.kernel.org: https://git.kernel.org/stable/c/992c20bc8a4aba220c8b95b467d049289778dad6