forked from Minki/linux
Fix waitid si_code regression
In commit ee7c82da83
("wait_task_stopped:
simplify and fix races with SIGCONT/SIGKILL/untrace"), the magic (short)
cast when storing si_code was lost in wait_task_stopped. This leaks the
in-kernel CLD_* values that do not match what userland expects.
Signed-off-by: Roland McGrath <roland@redhat.com>
Cc: Oleg Nesterov <oleg@tv-sign.ru>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
parent
84c6f6046c
commit
6efcae4601
@ -1378,7 +1378,7 @@ unlock_sig:
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if (!retval && infop)
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retval = put_user(0, &infop->si_errno);
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if (!retval && infop)
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retval = put_user(why, &infop->si_code);
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retval = put_user((short)why, &infop->si_code);
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if (!retval && infop)
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retval = put_user(exit_code, &infop->si_status);
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if (!retval && infop)
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