CVEvulnerability
CVE-2026-97417
7.5 HIGH
Official page ↗
- Status
- Received
- Published
- 2026-09-24
- Last modified
- 2026-10-03
- Assigner
- 416baaa9-dc9f-4396-8d5f-8c081fb06d67
- CVSS 3.1 (416baaa9-dc9f-4396-8d5f-8c081fb06d67)
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
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.
References
- https://git.kernel.org/stable/c/0d5ad732e4fdc569eb85861115e8f7b4c2c67852 git.kernel.org
- https://git.kernel.org/stable/c/4abc1af7ac209c066f4e5dd75cdd56876e5829a9 git.kernel.org
- https://git.kernel.org/stable/c/55bcc3376cd7b18954cc9814da697504fdaf12bf git.kernel.org
- https://git.kernel.org/stable/c/740ad3d17a281f7764dda4dbeb37cea52e2e31ae git.kernel.org
- https://git.kernel.org/stable/c/7ecfa46a536578a7ed335ddf31a854127268c27c git.kernel.org
- https://git.kernel.org/stable/c/a0523267de2523522b0f70972dd1ffa22ec6176c git.kernel.org
- https://git.kernel.org/stable/c/d3bf9eae486490832bd08fd62ab0ac601f346bd4 git.kernel.org