On Mon, Aug 22, 2016 at 4:01 PM, John Stultz <john.stu...@linaro.org> wrote: > In changing from checking ptrace_may_access(p, PTRACE_MODE_ATTACH_FSCREDS) > to capable(CAP_SYS_NICE), I missed that ptrace_my_access succeeds > when p == current, but the CAP_SYS_NICE doesn't. > > Thus while the previous commit was intended to loosen the needed > privledges to modify a processes timerslack, it needlessly restricted > a task modifying its own timerslack via the proc/<tid>/timerslack_ns > (which is permitted also via the PR_SET_TIMERSLACK method). > > This patch corrects this by checking if p == current before checking > the CAP_SYS_NICE value. > > This patch applies on top of my two previous patches currently in -mm
Ping? Any feedback or comments on this one? thanks -john
