CVE-2026-90157

A flaw was found in the Linux kernel. A local attacker could exploit a vulnerability in the BPF Berkeley Packet Filter cgroup getsockopt hook. By providing a negative length value, a malicious BPF program could cause the kernel's memory copy function to process an invalid size. This could lead to...

SUSE CVE-2026-90157

In the Linux kernel, the following vulnerability has been resolved: bpf: Reject negative optlen in cgroup getsockopt hook A cgroup getsockopt BPF program can shrink ctx-optlen after the kernel getsockopt handler has run. The kernel-buffer variant, used by TCPZEROCOPYRECEIVE, only rejects values...