On Sat, Sep 19, 2020 at 01:06:36AM -0700, Kees Cook wrote: > Some archs (like powerpc) only support changing the return code during > syscall exit when ptrace is used. Test entry vs exit phases for which > portions of the syscall number and return values need to be set at which > different phases. For non-powerpc, all changes are made during ptrace > syscall entry, as before. For powerpc, the syscall number is changed at > ptrace syscall entry and the syscall return value is changed on ptrace > syscall exit. > > Reported-by: Thadeu Lima de Souza Cascardo <[email protected]> > Suggested-by: Thadeu Lima de Souza Cascardo <[email protected]> > Link: > https://lore.kernel.org/linux-kselftest/[email protected]/ > Fixes: 58d0a862f573 ("seccomp: add tests for ptrace hole") > Signed-off-by: Kees Cook <[email protected]> > ---
Looks good! Acked-by: Christian Brauner <[email protected]>
