CVE-2026-74290

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsflow: Dont expose folded kernel pointers The flow classifier falls back to addrfold for fields that are missing from packet headers. In map mode, userspace controls mask, xor, rshift, addend and divisor, and can...

CVE-2026-74290 net/sched: cls_flow: Dont expose folded kernel pointers

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsflow: Dont expose folded kernel pointers The flow classifier falls back to addrfold for fields that are missing from packet headers. In map mode, userspace controls mask, xor, rshift, addend and divisor, and can...

EUVD-2026-59437

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsflow: Dont expose folded kernel pointers The flow classifier falls back to addrfold for fields that are missing from packet headers. In map mode, userspace controls mask, xor, rshift, addend and divisor, and can...

CVE-2026-31422

In the Linux kernel, the following vulnerability has been resolved: net/sched: clsflow: fix NULL pointer dereference on shared blocks flowchange calls tcfblockq and dereferences q-handle to derive a default baseclass. Shared blocks leave block-q NULL, causing a NULL deref when a flow filter witho...

CVE-2025-21653

In the Linux kernel, the following vulnerability has been resolved: netsched: clsflow: validate TCAFLOWRSHIFT attribute syzbot found that TCAFLOWRSHIFT attribute was not validated. Right shitfing a 32bit integer is undefined for large shift values. UBSAN: shift-out-of-bounds in...

Linux kernel 安全漏洞

Linux kernel is the kernel used by Linux, the open source operating system of the Linux Foundation in the United States. A security vulnerability exists in the Linux kernel that stems from the clsflow module not validating the TCAFLOWRSHIFT attribute, which could result in out-of-range shift...