In the Linux kernel, the following vulnerability has been resolved: netfilter: validate user input for expected length I got multiple syzbot reports showing old bugs exposed by BPF after commit 20f…

摘要

In the Linux kernel, the following vulnerability has been resolved: netfilter: validate user input for expected length I got multiple syzbot reports showing old bugs exposed by BPF after commit 20f2505fb436 ("bpf: Try to avoid kzalloc in cgroup/{s,g}etsockopt") setsockopt() @optlen argument should be taken into account before copying data. BUG: KASAN: slab-out-of-bounds in copy_from_sockptr_offset include/linux/sockptr.h:49 [inline] BUG: KASAN: slab-out-of-bounds in copy_from_sockptr incl…

中文摘要建设中，暂以英文摘要呈现（DR-003 v2）。