kernel: tcp_bpf: fix return value of tcp_bpf_sendmsg()

A flaw was found in the Linux kernel's tcpbpf component. A local attacker with low privileges could exploit a vulnerability in the tcpbpfsendmsg function. This flaw occurs when messages are handled in a specific way, leading to an unexpected negative return value. Successful exploitation can caus...

ALPINE-CVE-2022-33745

insufficient TLB flush for x86 PV guests in shadow mode For migration as well as to work around kernels unaware of L1TF see XSA-273, PV guests may be run in shadow paging mode. To address XSA-401, code was moved inside a function in Xen. This code movement missed a variable changing meaning / val...