On Thu, Mar 23, 2017 at 3:46 PM, Kees Cook wrote:
> Commit aa1f1a639621 ("lib/syscall: Pin the task stack in collect_syscall()")
> added logic to handle a process stack not existing, but left sp and pc
> uninitialized, which can be later reported via /proc/$pid/syscall for zombie
> processes, pote
Commit aa1f1a639621 ("lib/syscall: Pin the task stack in collect_syscall()")
added logic to handle a process stack not existing, but left sp and pc
uninitialized, which can be later reported via /proc/$pid/syscall for zombie
processes, potentially exposing kernel memory to userspace.
Zombie /proc/
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