Package: mksh Version: 59c-9+b2 Severity: normal Consider the following command:
mksh -c 'trap "" INT; trap; ( sleep 3; ); echo $?' If I hit Ctrl-C, the sleep is interrupted immediately, with exit status 130, corresponding to a SIGINT: $ mksh -c 'trap "" INT; trap; ( sleep 3; ); echo $?' trap -- '' INT ^C130 This is incorrect, because SIGINT should be ignored. This issue disappears when the subshell has several commands: $ mksh -c 'trap "" INT; trap; ( :; sleep 3; ); echo $?' trap -- '' INT ^C0 -- System Information: Debian Release: bookworm/sid APT prefers unstable-debug APT policy: (500, 'unstable-debug'), (500, 'stable-security'), (500, 'unstable'), (500, 'testing'), (500, 'stable'), (1, 'experimental') Architecture: amd64 (x86_64) Foreign Architectures: i386 Kernel: Linux 5.10.0-8-amd64 (SMP w/12 CPU threads) Kernel taint flags: TAINT_PROPRIETARY_MODULE, TAINT_OOT_MODULE, TAINT_UNSIGNED_MODULE Locale: LANG=POSIX, LC_CTYPE=C.UTF-8 (charmap=UTF-8), LANGUAGE not set Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages mksh depends on: ii libc6 2.31-17 Versions of packages mksh recommends: ii ed 1.17-1 mksh suggests no packages. -- no debconf information -- Vincent Lefèvre <vinc...@vinc17.net> - Web: <https://www.vinc17.net/> 100% accessible validated (X)HTML - Blog: <https://www.vinc17.net/blog/> Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)