siper

Siper Shield Siper is a high-performance, XDP-based IP blacklist firewall built with Go and C eBPF. It allows you to drop malicious traffic at the earliest possible stage in the Linux networking stack—the network driver level. By leveraging XDP Express Data Path, Siper processes packets before th...

SUSE CVE-2026-64352

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow LPM map access from sleepable BPF programs trielookupelem annotates its rcudereferencecheck walks with only rcureadlockbhheld. Because rcudereferencecheckp, c resolves to "c || rcureadlockheld", this passes for XDP/NAP...

CVE-2026-64352

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow LPM map access from sleepable BPF programs trielookupelem annotates its rcudereferencecheck walks with only rcureadlockbhheld. Because rcudereferencecheckp, c resolves to "c || rcureadlockheld", this passes for XDP/NAP...

AZL-93611 CVE-2026-64352 affecting package kernel for versions less than 6.6.145.2-1

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow LPM map access from sleepable BPF programs trielookupelem annotates its rcudereferencecheck walks with only rcureadlockbhheld. Because rcudereferencecheckp, c resolves to "c || rcureadlockheld", this passes for XDP/NAP...

CVE-2026-64352

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow LPM map access from sleepable BPF programs trielookupelem annotates its rcudereferencecheck walks with only rcureadlockbhheld. Because rcudereferencecheckp, c resolves to "c || rcureadlockheld", this passes for XDP/NAP...

UBUNTU-CVE-2026-64352

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow LPM map access from sleepable BPF programs trielookupelem annotates its rcudereferencecheck walks with only rcureadlockbhheld. Because rcudereferencecheckp, c resolves to "c || rcureadlockheld", this passes for XDP/NAP...

CVE-2026-64352

CVE-2026-64352 affects the Linux kernel BPF subsystem , specifically the LPM (Longest Prefix Match) trie implementation in kernel/bpf/lpm_trie.c. The root cause is incorrect RCU lock annotations : trie_lookup_elem() used rcu_read_lock_bh_held() which does not accept the Tasks Trace RCU held by sl...

EUVD-2026-48896

In the Linux kernel, the following vulnerability has been resolved: bpf: Allow LPM map access from sleepable BPF programs trielookupelem annotates its rcudereferencecheck walks with only rcureadlockbhheld. Because rcudereferencecheckp, c resolves to "c || rcureadlockheld", this passes for XDP/NAP...

PT-2026-64573

Name of the Vulnerable Software and Affected Versions Linux kernel versions prior to 7.1.0 Description An issue exists in the Linux kernel where sleepable BPF programs cannot properly access Longest Prefix Match LPM maps. The function trie lookup elem uses an annotation that only validates classi...

Linux kernel BPF LPM Trie Heap Buffer Overflow DoS

The vulnerability of the triegetnextkey function in the kernel/bpf/lpmtrie.c module of the Linux operating system is related to memory allocation beyond the allocated buffer. Exploiting this vulnerability could allow an attacker to compromise the confidentiality, integrity, and accessibility of t...