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* telnetd: Fix deadlock on cleanupSeiichi Ishitsuka2018-06-121-0/+114
The cleanup function in telnetd is called both directly and on SIGCHLD signals. This triggered a deadlock in glibc and was reproduced in glibc 2.27 while running on a 4.14.30 kernel. Signed-off-by: Seiichi Ishitsuka <ishitsuka.sc@ncos.nec.co.jp> Signed-off-by: Khem Raj <raj.khem@gmail.com>