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authorOleg Nesterov <oleg@redhat.com>2016-01-20 14:59:58 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2016-01-20 17:09:18 -0800
commit570ac9337b5c13dbf46ca6758c376e2e13e8956f (patch)
tree361e5714890df92ffe88ea81b6125ed165511d61 /security/yama
parent7c3b00e06d731a28fc3d17ed02ba250642b15b81 (diff)
ptrace: task_stopped_code(ptrace => true) can't see TASK_STOPPED task
task_stopped_code()->task_is_stopped_or_traced() doesn't look right, the traced task must never be TASK_STOPPED. We can not add WARN_ON(task_is_stopped(p)), but this is only because do_wait() can race with PTRACE_ATTACH from another thread. [akpm@linux-foundation.org: teeny cleanup] Signed-off-by: Oleg Nesterov <oleg@redhat.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Roland McGrath <roland@hack.frob.com> Acked-by: Tejun Heo <tj@kernel.org> Cc: Pedro Alves <palves@redhat.com> Cc: Jan Kratochvil <jan.kratochvil@redhat.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'security/yama')
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