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Add or correct range checking of signal numbers in system calls and
rS118749Unpublished

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Description

Add or correct range checking of signal numbers in system calls and
ioctls.

In the particular case of ptrace(), this commit more-or-less reverts
revision 1.53 of sys_process.c, which appears to have been erroneous.

Reviewed by: iedowse, jhb

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nectarAuthored on
Parents
rS118748: Add some quick pathes to exit process when signal action is default and
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