Astra Linux – Vulnerability found in Linux 5.10, Linux 6.1

In the Linux kernel, the following vulnerability has been resolved: BPF: Rejection of negative values in ctx-optlen when using the getsockopt hook for cgroups. The BPF program for cgroups can set ctx-optlen to a smaller value after the kernel’s getsockopt handler has executed. The kernel-buffer...

Linux Distros Unpatched Vulnerability : CVE-2026-90157

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - 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...

AZL-102590 CVE-2026-90157 affecting package kernel for versions less than 6.6.157.1-1

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...

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...

EUVD-2026-81750

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...

CVE-2026-90157 bpf: Reject negative optlen in cgroup getsockopt hook

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...

CVE-2026-90157 bpf: Reject negative optlen in cgroup getsockopt hook

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...

CVE-2026-90157

CVE-2026-90157 affects the Linux kernel BPF cgroup getsockopt hook. A cgroup getsockopt BPF program can shrink ctx->optlen after the kernel getsockopt handler runs. The kernel-buffer variant (used by TCP_ZEROCOPY_RECEIVE ) only rejects values larger than the original length, so a negative optl...

CVE-2026-90157: Undefined Security Weakness

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...

PT-2026-94505

Name of the Vulnerable Software and Affected Versions Linux kernel affected versions not specified Description An issue exists in the cgroup getsockopt BPF program where the ctx-optlen can be shrunk after the kernel getsockopt handler has executed. In the kernel-buffer variant used by TCP ZEROCOP...