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Serge E. Hallyn
91ad997a34
Fix http://bugzilla.kernel.org/show_bug.cgi?id=9247 Allow sigcont to be sent to a process with greater capabilities if it is in the same session. Otherwise, a shell from which I've started a root shell and done 'suspend' can't be restarted by the parent shell. Also don't do file-capabilities signaling checks when uids for the processes don't match, since the standard check_kill_permission will have done those checks. [[email protected]: coding-style cleanups] Signed-off-by: Serge E. Hallyn <[email protected]> Acked-by: Andrew Morgan <[email protected]> Cc: Chris Wright <[email protected]> Tested-by: "Theodore Ts'o" <[email protected]> Cc: Stephen Smalley <[email protected]> Cc: "Rafael J. Wysocki" <[email protected]> Cc: Chris Wright <[email protected]> Cc: James Morris <[email protected]> Cc: Stephen Smalley <[email protected]> Signed-off-by: Andrew Morton <[email protected]> Signed-off-by: Linus Torvalds <[email protected]>