Hello. As was agreed[1][2], clone3 should fail if the provided exit_signal value fails valid_signal() check, hence the new version.
Changees since v2[3][4]: - Rewrite the check to check exit_signal against valid_signal(). Changes since v1[5]: - Check changed to comparison against negated CSIGNAL to address the bug reported by Oleg[6]. - Added a comment to _do_fork that exit_signal has to be checked by the caller. [1] https://lkml.org/lkml/2019/9/11/503 [2] https://lkml.org/lkml/2019/9/11/518 [3] https://lkml.org/lkml/2019/9/10/764 [4] https://lkml.org/lkml/2019/9/10/765 [5] https://lkml.org/lkml/2019/9/10/411 [6] https://lkml.org/lkml/2019/9/10/467 Eugene Syromiatnikov (1): fork: check exit_signal passed in clone3() call kernel/fork.c | 11 +++++++++++ 1 file changed, 11 insertions(+) -- 2.1.4