CONFIG_DEBUG_STACKOVERFLOW是x86使用过的debug手段,但arm上没有支持. 在实际使用中,通常使用STACK TRACER来debug stack usage的问题,但这种debug手段在生产环境中没办法使用,所以很繁琐. 幸运的是,linux社区终于引入了arm vmap stack和irq stack. Irq stack可以有效解决上面的第二种情况. Vmap stack可以让stack overf...
More CONFIG_VMAP_STACK vulnerabilities, refcount_t UAF, and an ignored Secure Boot bypass / rootkit method On Fri, Jun 23, 2017 at 06:04:00PM -0700, Linus Torvalds wrote: > On Fri, Jun 23, 2017 at 5:50 PM, Brad Spengler <spender@...ecurity.net> wrote: > > > > BTW, we're ...
More CONFIG_VMAP_STACK vulnerabilities, refcount_t UAF, and an ignored Secure Boot bypass / rootkit method On Fri, Jun 23, 2017 at 06:04:00PM -0700, Linus Torvalds wrote: > On Fri, Jun 23, 2017 at 5:50 PM, Brad Spengler <spender@...ecurity.net> wrote: > > > > BTW, we're ...