PT-2026-98831

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the BPF Berkeley Packet Filter subsystem where the bpf refcount field is not marked as unique. This oversight relates to how reference counts are tracked for BPF...

CVE-2023-53645

In the Linux kernel, the following vulnerability has been resolved: bpf: Make bpfrefcountacquire fallible for non-owning refs This patch fixes an incorrect assumption made in the original bpfrefcount series 0, specifically that the BPF program calling bpfrefcountacquire on some node can always...

CVE-2023-53645

CVE-2023-53645 : Linux kernel patch fixes a use-after-free risk in BPF non-owning references by making bpf_refcount_acquire fallible. The fix changes the implementation (bpf_refcount_acquire_impl) to use refcount_inc_not_zero and return KF_RET_NULL, preventing increment on a possibly freed object...

PT-2025-41089

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description A memory-safety flaw exists in the extended Berkeley Packet Filter eBPF subsystem regarding how reference counts are acquired for objects after a failed tree insertion. The issue stems...