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, which originates in the sfc module, where an unconditional call to xdpdoflush in a netpoll scenario could result in a crash...

CVE-2022-48647

In the Linux kernel, the following vulnerability has been resolved: sfc: fix TX channel offset when using legacy interrupts In legacy interrupt mode the txchanneloffset was hardcoded to 1, but that's not correct if efxsepparatetxchannels is false. In that case, the offset is 0 because the tx queu...

CVE-2021-46947

In the Linux kernel, the following vulnerability has been resolved: sfc: adjust efx-xdptxqueuecount with the real number of initialized queues efx-xdptxqueuecount is initially initialized to numpossiblecpus and is later used to allocate and traverse efx-xdptxqueues lookup array. However, we may e...

CVE-2021-46947

CVE-2021-46947 is a Linux kernel issue in the sfc (Solarflare) driver where efx->xdp_tx_queue_count can reflect too many uninitialized slots after probing, risking a NULL pointer dereference (e.g., when running ethtool -S). The root cause is that xdp_tx_queue_count starts at num_possible_cpus(...