CVE-2024-35917 s390/bpf: Fix bpf_plt pointer arithmetic

In the Linux kernel, the following vulnerability has been resolved: s390/bpf: Fix bpfplt pointer arithmetic Kui-Feng Lee reported a crash on s390x triggered by the dummystops/dummyinitptrarg test 1: 0x2 bpfstructopstestrun+0x156/0x250 sysbpf+0xa1a/0xd00 s390xsysbpf+0x44/0x50 dosyscall+0x244/0x300...

CVE-2024-35917

CVE-2024-35917 (Linux kernel, s390/bpf) details from connected Azure Linux Nessus entry show the issue arises from GCC reordering memcpy() after assignments in bpf_jit_plt(), causing NULL pointers to be written instead of the intended return/target addresses. Root cause is GCC alias-analysis misc...