Linux
CVE-2026-99288: In the Linux kernel, the following vulnerability has been resolved: inet: reject unhashed sockets during established lookups TCP established ehash lookups are
CVE-2026-99288 Nov 10, 2026 Source: Vendor
In the Linux kernel, the following vulnerability has been resolved:
inet: reject unhashed sockets during established lookups
TCP established ehash lookups are lockless. The socket caches involved
use SLAB_TYPESAFE_BY_RCU, so memory can be reused before an RCU reader
that retained its old address has finished.
After a tuple match, __inet_lookup_established() and
__inet6_lookup_established() acquire a reference and repeat the tuple
check. They do not check whether the new object is hashed. If t
Source of record
The credited names below are quoted verbatim from the vendor's own advisory:
https://nvd.nist.gov/vuln/detail/CVE-2026-99288
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