Description
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().
References6
- git.kernel.org/stable/c/2b8e7aaa38002d8ee2f48d87b1f392eadd8e98c4
- git.kernel.org/stable/c/5c9c67cf7a3d16051dfb90e98836f530964dfb8e
- git.kernel.org/stable/c/95cda0446f51077c343fdd8264be2737eb25a6c3
- git.kernel.org/stable/c/992c20bc8a4aba220c8b95b467d049289778dad6
- git.kernel.org/stable/c/b30a2d56ee47282f6a46cb2f50e315b2414851fe
- git.kernel.org/stable/c/ea3d2caa5bfacf5db5c1cad521ca5d9144edd9a7
Metrics
- CVSS 3.1
-
7.5
HIGH
Score source: CNA
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H - EPSS — exploit probability
- 1% percentile: 48 · as of 8 November 2026
Could this be exploited in your environment?
A patch closes the known hole. A penetration test shows what an attacker can still reach — with proof.